Complete Apartment Renovation Services

Transform Your Living Space with Professional Expertise

Modern apartment interior after complete renovation with contemporary design

Barizi specializes in comprehensive apartment renovations across London, delivering projects from initial planning through final handover. Our team handles everything: structural modifications, electrical installations, plumbing systems, flooring, wall finishes, and custom carpentry. Each project begins with detailed measurements and client consultations to establish clear timelines and budgets.

We work with verified suppliers who provide materials meeting British Standards. Our electricians hold City & Guilds Level 3 qualifications, plumbers are Gas Safe registered where required, and all structural work complies with current Building Regulations. Projects typically range from studio flats requiring 3-4 weeks to three-bedroom apartments needing 8-12 weeks, depending on scope.

Throughout the process, clients receive weekly progress reports with photographs and updated schedules. We coordinate with building management to ensure compliance with noise restrictions and access requirements common in London residential properties. Payment schedules are structured in stages tied to completion milestones, with final settlement only after client approval and any necessary adjustments. Our warranty covers workmanship for 24 months, with separate manufacturer guarantees on installed fixtures and appliances.

  • Fixed-price contracts with itemized breakdowns covering materials, labor, and disposal costs
  • Dedicated project manager assigned to coordinate all trades and maintain schedule adherence
  • Certified specialists: 8-15 years average experience in residential renovation sector
  • Comprehensive insurance: £5 million public liability and employer's liability coverage
  • Material sourcing from established UK distributors with documented quality certifications

Our Track Record

Numbers that reflect our commitment to quality workmanship and client satisfaction across London and surrounding areas

6
Years Operating
Since 2018
342
Completed Projects
57 annually average
285
Satisfied Clients
Across Greater London
94%
Satisfaction Rate
Based on feedback
11
Team Members
Qualified specialists
28
Average Days
Per project completion
45
London Boroughs
Service coverage
68%
Repeat Clients
Return for new work
156
Flats Renovated
In 2024 alone
89
Kitchen Refits
Past 24 months
124
Bathroom Installs
Since 2022
96%
On-Time Delivery
Meeting deadlines
12
Month Warranty
On all work
4.8
Average Rating
Out of 5.0
3
Industry Awards
Received in GB

Our Completed Projects

Browse through our recent flat renovation work across London, showcasing various styles and scopes of transformation

Victorian flat renovation in Islington
Complete Renovation

Victorian Flat in Islington

Modern kitchen renovation in Camden
Kitchen Remodel

Contemporary Kitchen in Camden

Luxury bathroom renovation in Chelsea
Bathroom Upgrade

Spa-Style Bathroom in Chelsea

Studio flat conversion in Shoreditch
Studio Conversion

Open-Plan Studio in Shoreditch

Edwardian flat restoration in Kensington
Complete Renovation

Edwardian Restoration in Kensington

Scandinavian kitchen design in Hackney
Kitchen Remodel

Minimalist Kitchen in Hackney

About Barizi

Building quality living spaces across London since 2015, we deliver comprehensive apartment renovation services with attention to detail and client satisfaction.

Our Foundation Story

Barizi was established in 2015 by a team of construction professionals who recognized a gap in the London market for reliable, full-cycle apartment renovation. Starting with small projects in Camden and Islington, we built our reputation through consistent delivery and transparent communication with clients.

Over eight years, we have completed 340 apartment renovations across Greater London, from studio flats in Shoreditch to three-bedroom properties in Richmond. Each project taught us valuable lessons about managing timelines, coordinating trades, and maintaining quality standards under various conditions.

Our workshop in North London houses a team of 23 specialists: electricians certified to BS 7671 standards, plumbers registered with Gas Safe, carpenters with NVQ Level 3 qualifications, and decorators experienced in both modern and period properties. This in-house capability allows us to control quality at every stage without relying on subcontractors.

Barizi renovation team working on apartment project
Completed apartment renovation by Barizi

Our Approach to Renovation

We operate on a fixed-price contract model with detailed specifications agreed before work begins. Clients receive a project manager who coordinates all trades, handles building control notifications, and provides weekly progress updates. Our average project duration is 6-8 weeks for a two-bedroom flat, depending on scope.

Materials are sourced from established UK suppliers: Wickes for timber and hardware, Screwfix for electrical components, and Topps Tiles for bathroom and kitchen finishes. We maintain accounts with these suppliers to ensure consistent availability and competitive pricing. For kitchens, we work with Howdens and Magnet, offering clients a range of styles from contemporary handleless units to traditional shaker designs.

Every renovation includes a 24-month warranty covering workmanship and installations. We return for a 6-month inspection to address any settling issues and ensure all systems function correctly. This follow-up service has resulted in 89% of our clients recommending us to friends and family, measured through independent surveys conducted in 2023.

What Guides Our Work

Transparent Pricing

Detailed quotes with itemized costs for materials, labour, and waste removal. No hidden fees or unexpected charges during the project.

Regulatory Compliance

All electrical work certified by NICEIC registered electricians. Gas installations handled by Gas Safe engineers. Building control notifications submitted where required.

Schedule Adherence

Realistic timelines with buffer periods for unforeseen issues. Daily site cleanup and waste management to minimize disruption to neighbours.

Quality Materials

British Standard compliant materials with manufacturer warranties. Dulux and Crown paints, Armitage Shanks sanitaryware, MK electrical fittings as standard specifications.

340+
Completed Projects
8
Years Operating
23
Qualified Specialists
89%
Client Recommendations

Get in Touch

Ready to start your renovation project? Contact our team to discuss your requirements and receive a detailed quote for your apartment refurbishment.

Send Us a Message

Contact Information

Address

42 Richmond Avenue
London, N1 0BN

Working Hours

  • Monday - Friday: 9:00 - 18:00
  • Saturday: 10:00 - 14:00
  • Sunday: Closed

Frequently Asked Questions

Find answers to common questions about our renovation services and processes

The duration depends on the property size and scope of work. A one-bedroom flat typically requires 4-6 weeks, while a three-bedroom property may take 8-12 weeks. This includes demolition, electrical and plumbing installations, plastering, flooring, tiling, decorating, and final touches.

Factors affecting timeline include structural changes, custom joinery, bathroom and kitchen installations, and material availability. We provide a detailed schedule before starting and keep you updated throughout the process.

Our comprehensive service covers every aspect from initial consultation to final handover. This includes design planning, obtaining necessary permits, demolition, structural work, electrical rewiring, plumbing installation, heating systems, plastering, flooring, tiling, kitchen and bathroom fitting, decorating, and final cleaning.

You receive a fully finished property ready to move in, with all fixtures, fittings, and finishes completed to specification. We coordinate all trades and manage the entire project timeline.

For complete renovations involving electrical work, plumbing, and structural changes, we recommend relocating temporarily. This ensures safety, allows faster progress, and prevents damage to your belongings from dust and debris.

For partial renovations or single-room projects, it may be possible to remain in the property. We can discuss phased approaches where we complete one area at a time, though this extends the overall timeline.

Costs vary based on property size, specification level, and location. A basic renovation of a one-bedroom flat starts from £25,000-£35,000, while mid-range specifications range from £40,000-£60,000. Premium finishes with custom features can exceed £80,000.

Larger properties naturally cost more. A three-bedroom flat typically ranges from £60,000 to £150,000 depending on choices. We provide detailed quotations after assessing your property and discussing your requirements.

We operate on a staged payment system tied to project milestones. Typically, this includes an initial deposit of 20% upon contract signing, followed by payments at key stages: after demolition and first fix (30%), after second fix and plastering (30%), and final payment upon completion (20%).

This structure protects both parties and ensures funds are available for materials and labour at each stage. All payments are clearly outlined in your contract with corresponding completion criteria.

Yes, we manage all necessary applications and approvals. This includes building control notifications for structural work, electrical and plumbing certifications, and any required planning permissions. Our team has extensive experience navigating London borough requirements.

We ensure all work complies with current building regulations and obtain the necessary certificates upon completion. This documentation is essential for property sales and insurance purposes.

Absolutely. We encourage clients to select materials, fixtures, and finishes that match their preferences and budget. Our team provides guidance on quality, suitability, and cost-effectiveness, but final decisions remain yours.

We can source materials on your behalf or work with items you purchase directly. If you choose to supply materials, we coordinate delivery timing to align with the construction schedule and verify specifications meet installation requirements.

We provide a 24-month warranty on all workmanship and installations. This covers defects arising from our work, including plastering, tiling, joinery, decorating, and installations. Manufacturer warranties on appliances, fixtures, and materials are passed to you with full documentation.

Electrical work is certified by registered electricians with appropriate guarantees, and plumbing installations carry similar assurances. We respond promptly to any issues during the warranty period.

We implement strict site management protocols including dust barriers between work areas and unaffected spaces, daily cleaning routines, and proper waste disposal. Heavy-duty extraction equipment is used during dusty operations like sanding and cutting.

Rubbish is removed regularly, typically twice weekly or more frequently for larger projects. We protect floors, stairs, and communal areas with appropriate coverings and ensure the site is left tidy at the end of each day.

Unexpected issues like hidden water damage, outdated wiring, or structural concerns sometimes emerge once work begins. We contact you immediately when such situations arise, explain the problem clearly, and provide options with associated costs.

No additional work proceeds without your approval. We document findings with photographs and provide written quotations for necessary remedial work. Our experience helps anticipate potential issues during initial surveys, minimizing surprises.

Yes, we regularly work in flats within occupied buildings. We respect neighbours by adhering to reasonable working hours (typically 8:00-18:00 on weekdays), minimizing noise where possible, and maintaining clean communal areas.

We notify neighbours before starting, coordinate with building management regarding access and facilities, and ensure our team behaves professionally. Noisy operations are scheduled considerately, and we address any concerns promptly.

We have experience working within the constraints of listed buildings and conservation areas. This requires additional planning permissions and adherence to specific guidelines regarding materials, methods, and appearance.

We liaise with conservation officers, prepare necessary applications, and ensure work respects the property's character while meeting modern standards. This process takes longer than standard renovations due to approval requirements.

Our team includes qualified tradespeople with relevant certifications in their specialisms. Electricians are registered with competent person schemes, plumbers hold appropriate qualifications, and all work follows British Standards and building regulations.

We conduct regular site inspections, maintain photographic records of progress, and perform quality checks at each stage. Final inspections ensure everything meets specification before handover, and we address any concerns immediately.

Changes are possible but easier and less costly when made early. We assess each request for feasibility, impact on schedule, and cost implications. Minor adjustments like paint colours or fixture choices are straightforward.

Significant changes affecting completed work or requiring different materials may incur additional costs and delays. We provide written variation orders detailing changes, costs, and timeline adjustments before proceeding.

We offer design consultation for standard renovations, helping you plan layouts, select finishes, and optimize space. For complex projects requiring structural changes or architectural drawings, we collaborate with architects and structural engineers.

If you already have architectural plans, we work directly from those specifications. We can also recommend trusted design professionals if needed and coordinate closely throughout the design and construction phases.

You receive regular updates through your preferred communication method - phone, email, or messaging. We provide weekly progress reports with photographs, schedule updates, and any decisions requiring your input.

A dedicated project manager serves as your main contact, available to answer questions and address concerns. Site visits can be arranged at convenient times, and we maintain detailed records of all communications and decisions.

We maintain comprehensive public liability insurance covering £5 million, protecting against damage to your property or injury during work. Our employers' liability insurance covers all team members working on site.

All electrical work is certified under Part P building regulations, and plumbing installations comply with Water Supply Regulations. We provide all necessary certificates and documentation upon completion, essential for property records and future sales.

Renovation Insights & Tips

Expert guidance on apartment refurbishment, from planning stages to final touches. Learn about materials, techniques, and current trends in residential renovation.

Bathroom renovation planning
12 Jan 2025 6 min read

Choosing Tiles for Bathroom Refurbishment

Ceramic, porcelain, or natural stone? Understanding the properties of different tile materials helps make informed decisions. We examine durability ratings, water absorption coefficients, and maintenance requirements for bathroom environments in London flats built between 1960-2020.

Read Article
Kitchen layout planning
8 Jan 2025 8 min read

Kitchen Work Triangle: Optimizing Space in Small Flats

The 4-to-9-foot distance between sink, cooker, and refrigerator remains relevant for kitchens from 6 to 12 square metres. This article presents three tested layouts for typical London apartment kitchens, with measurements adapted to British standard appliance dimensions and building regulations.

Read Article
Electrical system renovation
3 Jan 2025 7 min read

Updating Electrical Systems: BS 7671 Requirements

Properties built before 2008 often need rewiring to meet current 18th Edition standards. This includes RCD protection for all circuits, adequate earthing systems, and sufficient socket outlets. We break down the inspection checklist and explain when partial versus complete rewiring is appropriate for London apartments.

Read Article
Flooring options comparison
28 Dec 2024 5 min read

Laminate vs Engineered Wood: Sound Insulation Matters

Flats require flooring that meets Part E Building Regulations for impact sound transmission. Engineered oak with 5mm acoustic underlay achieves 17-20dB reduction, while laminate with dense foam backing provides 14-17dB. We compare installation costs, longevity (15-25 years for engineered, 10-15 for laminate), and compatibility with underfloor heating systems.

Read Article

Our Credentials

Licensed Business

Data Protection Compliant

SSL/TLS Secured

Quality Guaranteed

Industry Standards Compliant

Professional Team

What Our Clients Say

Real feedback from homeowners across London and the UK who trusted us with their flat renovation projects

Our two-bedroom flat in Islington needed a complete overhaul. The team handled everything from electrical work to plastering, painting, and installing a new kitchen. They worked around our schedule, kept the site clean, and finished exactly when they said they would. The result exceeded what we had in mind.

JM
James Morrison
Islington, London

Good service overall. The bathroom renovation took slightly longer than planned due to plumbing issues, but they kept us informed. Fair pricing and solid workmanship.

SC
Sophie Chen
Manchester

I'm so happy with how my studio flat turned out! They maximized every inch of space with clever storage solutions and a neutral colour scheme that makes the place feel twice as big. Communication was excellent throughout.

AR
Anna Roberts
Camden, London

The ROI was excellent. We invested £18,000 in renovating our buy-to-let property in Birmingham, and the valuation increased by £35,000. Professional approach, transparent costs, no hidden fees. They coordinated all trades efficiently, which saved considerable time. The property was rent-ready within six weeks from start to finish.

DT
David Thompson
Birmingham

Decent work on the flooring and decorating. The price was competitive. One issue with paint colour that needed correcting, but they fixed it without argument. Would be nice to have more frequent updates during the project.

MK
Martin Kelly
Bristol

They solved a major damp problem we'd been struggling with for years. Proper diagnosis, installation of a damp-proof course, replastering with breathable materials, and redecorating. Three months later, walls are still dry. Finally, we can use that bedroom again.

LP
Linda Patterson
Leeds

Solid team. Kitchen installation was particularly impressive - units fitted perfectly, worktop joints barely visible. The tiling work around the bathroom was neat. Initial quote was accurate, which I appreciated. Delivery of materials took a bit longer than expected, adding three days to the schedule.

RC
Robert Clarke
Hackney, London

Converted our dated Victorian flat into a modern home while respecting original features. They restored the cornicing, stripped and refinished the floorboards, and updated all services. The attention to detail was remarkable.

EW
Emma Williams
Edinburgh

Met expectations. The price-to-quality ratio was reasonable. Some minor snags at completion that required a return visit, but they addressed everything on the list. Communication could have been more proactive.

PH
Paul Hughes
Liverpool

Fast turnaround was crucial as we needed the flat ready for tenants. They completed a full redecoration, new carpets, and minor repairs in just two weeks. Quality didn't suffer despite the tight deadline. Impressed by their organization and efficiency.

NK
Natalie Khan
Southwark, London

Best decision we made when buying our first home. The flat needed complete refurbishment, and they guided us through every choice - from flooring to lighting fixtures. Budget was tight at £12,000, and they worked within it without compromising on essential quality. We moved in six weeks later to a space that felt brand new.

TG
Tom Gardner
Glasgow

Professional service from quote to completion. Bathroom suite replacement and retiling done to a high standard. Minor delay with the shower enclosure delivery, but they adjusted the schedule accordingly. Price was transparent with no surprises.

HS
Helen Stevens
Nottingham

Why Choose Our Renovation Services

We deliver complete flat renovations with attention to detail, transparent pricing, and commitment to deadlines

Comprehensive Project Management

From initial consultation to final inspection, we handle every aspect of your renovation. Our dedicated project managers coordinate all trades, schedule deliveries, and ensure work progresses smoothly. You receive weekly updates and have a single point of contact throughout the entire process.

Fixed Price Guarantee

After the initial survey, we provide a detailed quote covering materials, labour, and timelines. This price remains fixed unless you request additional work. No hidden fees or unexpected costs. Payment schedule is structured in clear stages tied to completion milestones, protecting your investment.

Qualified Tradespeople

Our team includes electricians certified to BS 7671 18th Edition standards, Gas Safe registered plumbers, and carpenters with NVQ Level 3 qualifications. Each specialist has completed over 150 residential projects. We maintain public liability insurance of £5 million for your peace of mind.

12-Month Workmanship Warranty

All completed work comes with a full 12-month guarantee covering both materials and labour. Should any issues arise from our installation, we return to resolve them at no additional charge. Manufacturer warranties on appliances and fixtures are transferred to you with full documentation.

Realistic Timelines

A standard two-bedroom flat renovation takes 6-8 weeks. We provide a detailed schedule showing when each trade arrives and when specific rooms become available. Our completion rate is 94% within the agreed timeframe. Delays are communicated immediately with revised dates.

Responsible Waste Management

We hold a waste carrier licence and dispose of all construction debris through registered facilities. Approximately 85% of materials are recycled or repurposed. Skip hire and waste removal costs are included in our quotes. Your property is left clean after each working day.

Limited Time Only

Spring Renovation Special

Transform your flat with our comprehensive turnkey renovation package at a reduced rate. This exclusive offer includes free design consultation, premium materials upgrade, and extended warranty coverage. Whether you're updating a single room or renovating your entire property in London, our experienced team delivers quality workmanship on schedule. Book your project now and receive a complimentary post-completion inspection plus priority scheduling for any future maintenance needs.

Offer Valid Until:
10 June 2026
Save 15% on complete flat renovation projects over £8,000
Complimentary interior design consultation with our certified specialists (worth £350)
Upgrade to premium flooring and fixtures at standard pricing
Extended 3-year warranty on all renovation work and installations
Priority booking with flexible start dates throughout spring and summer 2025

Complete Apartment Renovation Services

We handle every aspect of apartment refurbishment in London and surrounding areas. From initial design consultation to final finishing touches, our team delivers quality workmanship with transparent pricing and reliable timelines.

Interior Painting

Complete painting service for walls, ceilings, and woodwork using premium emulsion and gloss paints. Surface preparation includes filling cracks, sanding, and priming. We use dust sheets and ensure minimal disruption. Two coats applied as standard, with additional coats available. Colour consultation included to help you choose the right shades for each room.

Floor Installation

Installation of laminate, engineered wood, or vinyl flooring throughout your apartment. Includes removal of existing flooring, subfloor levelling, and underlay installation. We work with leading manufacturers including Quick-Step and Karndean. All materials sourced from UK suppliers with manufacturer warranties. Skirting boards fitted and finished to complement your new floors perfectly.

Electrical Rewiring

Full or partial rewiring to current BS 7671 regulations with certification provided upon completion. Installation of new consumer units, socket outlets, and light fittings. All work carried out by NICEIC registered electricians with 12-year experience. Includes testing, inspection, and Building Control notification. Minimal damage to existing decoration with careful channelling and making good of all surfaces.

Plumbing Updates

Replacement of water supply pipes, waste systems, and installation of new fixtures. Gas Safe registered engineers handle all boiler and heating work. We install Worcester Bosch, Vaillant, and Ideal boilers with extended warranties. Bathroom and kitchen plumbing upgraded to modern standards. Pressure testing and certification included. Emergency call-out available during the warranty period for complete peace of mind.

Bathroom Renovation

Complete bathroom transformation including suite removal, tiling, plumbing, and electrical work. We install Grohe, Hansgrohe, and Roca sanitaryware with chrome or brushed steel fittings. Porcelain tiles from British Ceramic Tile or similar suppliers. Underfloor heating optional. Tanking and waterproofing to prevent future damp issues. Extractor fans fitted to Building Regulations standards for proper ventilation throughout.

Kitchen Refurbishment

Full kitchen installation with units from Howdens, Magnet, or Wren Kitchens. Includes worktop templating and fitting in quartz, granite, or solid wood. Integrated appliances from Bosch, Neff, or AEG. Tiling, electrics, plumbing, and gas work all coordinated. Soft-close hinges and drawer runners as standard. Ten-year warranty on cabinetry and two years on installation workmanship for your protection.

Wall Removal

Structural alterations to create open-plan living spaces with full Building Control approval. Structural engineer calculations and steel beam installation included in the price. We handle party wall agreements if required for terraced or semi-detached properties. Making good of floors, ceilings, and walls after beam installation. Plastering and decoration to match existing finishes throughout your apartment.

Window Replacement

Installation of UPVC, aluminium, or timber windows with A-rated double glazing. Everest, Anglian, or Safestyle products with 10-year insurance-backed guarantees. Includes removal of old windows, installation, and external sealing. Internal reveals plastered and decorated. Trickle vents fitted for ventilation compliance. FENSA certification provided for Building Regulations. Noise reduction glass available for properties on busy roads in central London.

Damp Proofing

Treatment of rising damp, penetrating damp, and condensation issues using chemical injection or membrane systems. Sovereign Chemicals or similar approved products with 20-year guarantees. Replastering with salt-inhibiting render after treatment. Timber treatment for any affected joists or floorboards. Independent surveyor reports available. Particularly important for ground floor flats and basement conversions common across London boroughs.

Insulation Upgrade

Internal wall insulation using Kingspan or Celotex boards with plasterboard finish. Loft insulation to 270mm depth meeting current Building Regulations. Floor insulation for ground floor apartments using rigid foam boards. Draught proofing around windows and doors. Energy Performance Certificate improvement guaranteed. Reduces heating bills significantly while improving comfort levels during winter months throughout your property.

Soundproofing

Acoustic insulation for walls, floors, and ceilings using Rockwool or similar mineral wool products. Resilient bars and acoustic plasterboard reduce sound transmission between rooms and neighbouring properties. Floor treatments include acoustic underlay beneath laminate or carpet. Particularly effective for conversions and new-build apartments where sound transfer is problematic. Testing available to confirm decibel reduction achieved after installation.

Plastering Service

Full room plastering or patch repairs using British Gypsum products. Skimming over existing plaster or plasterboard installation on stud walls. Coving and cornicing available in period properties. Venetian and decorative plaster finishes for feature walls. All surfaces left smooth and ready for decoration within 48 hours. Twenty years of experience working on Victorian, Edwardian, and modern properties throughout Greater London.

Door Installation

Internal door replacement with solid core or hollow core options from XL Joinery or Premdor. Includes hanging, ironmongery fitting, and frame installation. Fire doors for flats with certification provided. External door replacement with composite or UPVC options featuring multi-point locking. Threshold adjustments for accessibility. Architrave and skirting matched to existing or supplied new. Handles, hinges, and locks in chrome, brass, or satin finishes.

Built-in Storage

Custom wardrobes, alcove units, and shelving designed to maximise space in your apartment. MDF or plywood construction with painted or veneered finishes. Soft-close doors and drawer systems. Internal lighting and hanging rails included. Particularly useful for Victorian conversions with awkward spaces. Measurements taken precisely to ensure perfect fit. Handles and knobs from a wide range of styles to match your interior design scheme.

Decorative Features

Installation of ceiling roses, corbels, and panel mouldings to enhance period properties. Plaster or lightweight polyurethane options available. Feature walls with wallpaper from designers like Farrow & Ball or Cole & Son. Picture rails and dado rails fitted and painted. Restoration of existing Victorian or Edwardian features where damaged. All work completed by craftsmen experienced in working with listed buildings and conservation areas.

Waste Removal

Complete clearance of renovation waste including rubble, old fittings, and packaging materials. Licensed waste carriers with Environment Agency registration. Recycling of materials wherever possible to reduce landfill. Skip hire arranged if required for larger projects. Same-day or next-day collection available across London postcodes. Certificates of waste disposal provided for your records. Particularly important for leasehold properties requiring proof of proper disposal methods.

Disclaimer

The information provided on this website is offered "as is" and is accurate to our knowledge at the time of publication. Barizi reserves the right to modify, update, or remove any content without prior notice. While we strive to maintain current and precise information regarding our apartment renovation services, specifications, timelines, and pricing details may change. We recommend verifying all critical details directly with our team before making decisions. Barizi limits liability for any inaccuracies, omissions, or outdated information presented on this site. For professional advice tailored to your specific renovation project, please consult with our qualified specialists.