Greater London construction company
Construction and renovation services in London
From complete refurbishments, extensions and loft conversions to kitchens, bathrooms, plumbing, electrics and finishing work, COFAD helps homeowners improve existing spaces with a clear scope and a practical route from first brief to handover.
Detailed service guides
Plan the right construction work for your property
These in-depth guides explain what each type of project can include, the decisions that affect the quotation, practical London property considerations and what to prepare before contacting us.
London service guide
House Extensions
Plan a rear, side-return, wrap-around or double-storey house extension in London with COFAD. Practical scoping, coordinated trades and clear quotations.
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Loft Conversions
Explore dormer, rooflight and mansard loft conversions in London. COFAD coordinates structural work, stairs, insulation, services and interior finishes.
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House Refurbishment
Complete and phased house refurbishment in London, coordinating building work, electrics, plumbing, kitchens, bathrooms and finishes with COFAD.
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Kitchen Renovation
Kitchen renovation and installation in London, coordinating layout, plumbing, electrics, lighting, tiling, flooring and finishes with COFAD.
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Bathroom Renovation
Complete bathroom renovation in London, including preparation, plumbing, waterproofing, tiling, sanitaryware, ventilation and finishing work.
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Electrical Services
Domestic electrical work in London, from rewiring, sockets and lighting to consumer-unit upgrades, testing, outdoor power and smart controls.
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Plumbing & Heating
Plumbing and heating work in London, including pipework, radiators, bathrooms, underfloor heating, controls, repairs and renovation first fix.
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Painting & Decorating
Interior and exterior painting and decorating in London, including surface preparation, plaster repairs, woodwork, wallpaper and durable finishes.
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Roofing Services
Roof repairs, replacement, flat roofing, roof windows, insulation, guttering and chimney maintenance for London properties.
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Garden Rooms & Landscaping
Garden rooms, patios, decking, fencing, paving, retaining walls, lighting and practical landscaping work for London homes.
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What we do
All services
Looking for a specific job? Search the full catalogue or open a category below. We confirm the exact scope and quotation after reviewing your property and requirements.
104 services in 14 categories. Open a category to browse.
BuildingComplete refurbishments, kitchens, bathrooms, plastering, flooring and structural interior work.13 services
Basement Conversion
Transform basement into living or office space.
Bathroom Renovation
Complete bathroom remodeling service.
Ceiling Repair & Installation
Repair cracks or install new ceilings.
Complete Kitchen Renovation
Full kitchen design and installation.
Drywall Repair
Patch and fix walls quickly.
Flooring Installation
Install laminate, tile, or wood flooring.
House Refurbishment
Modernise and upgrade your entire home.
Kitchen Tiling
Beautiful tiles for kitchens.
Loft Conversion
Turn unused loft space into living areas.
Partition Wall Installation
Add or remove internal partitions.
Plastering & Skimming
Smooth finish for walls and ceilings.
Soundproofing Installation
Reduce noise with modern solutions.
Wall Painting
Interior and exterior painting.
Loft & ExtensionsLoft conversions and carefully planned extensions that add practical living space.8 services
Bungalow Extension
Add rooms to single-storey homes.
Dormer Loft Conversion
Extend loft with a dormer.
Double Storey Extension
Expand your home with two floors.
House Rear Extension
Add space to the rear of your home.
Loft Conversion (Velux)
Install Velux-style roof windows.
Mansard Loft Conversion
Create full-height loft with mansard roof.
Side Return Extension
Extend into unused side space.
Wrap-Around Extension
Combine side and rear extensions.
Structural & PlanningStructural openings, steel installation and support for the technical stages of a project.1 services
Structural Steel Installation
Fit RSJ beams for open-plan layouts.
Interior UpgradesJoinery, doors, heating upgrades, lighting and layout improvements for existing homes.8 services
Bespoke Joinery
Handmade wooden furniture.
Built-in Wardrobes
Custom storage solutions.
Skylight Installation
Add natural light with skylights.
Sliding Glass Doors
Modern patio or balcony doors.
Smart Home Wiring
Smart hubs and device setups.
Staircase Refurbishment
Upgrade or replace staircases.
Underfloor Heating (Electric)
Electric underfloor heating systems.
Wall Knockthrough Service
Remove non-load walls for open spaces.
Painting & DecoratingPreparation and durable decorative finishes for walls, ceilings, woodwork and exteriors.11 services
Bathroom Moisture-Resistant Painting
Anti-mould and waterproof paint for bathrooms.
Ceiling Painting
Smooth ceilings painted in durable coatings.
Commercial Painting
Painting for offices, shops, and commercial spaces.
Exterior House Painting
Weather-resistant painting for house exteriors.
Fence & Shed Painting
Protective painting for outdoor wood surfaces.
Interior Wall Painting
Professional painting of walls with clean finish.
Plaster Repairs & Painting
Fix cracks and repaint walls for a smooth look.
Staircase & Bannister Painting
Durable finishes for stairs and railings.
Wallpaper Hanging
Expert installation of wallpaper and wall coverings.
Wallpaper Removal
Safe removal of old wallpaper without damage.
Woodwork Painting
Doors, skirting boards, and trims painted neatly.
ElectricityDomestic wiring, lighting, sockets, consumer-unit upgrades, testing and smart electrical work.14 services
Chandelier Fitting
Install decorative ceiling lights.
EV Charger Installation
Home charging for electric vehicles.
Electrical Safety Certificate (Fuse Boxes)
Provide certification and safety checks for fuse boxes and electrical installations.
Electrical Wiring
Full house electrical installations.
Emergency Power Backup
Backup power solutions for homes.
Fire Alarm Installation
Install smoke and fire detectors.
Fuse Box Upgrade
Upgrade fuse box to modern standards.
Garden Lighting
Stylish and safe outdoor lights.
Lighting Design & Installation
Create bespoke lighting schemes.
Outdoor Power Supply
Safe external power access points.
Rewiring (Full/Partial)
Replace outdated wiring safely.
Smart Lighting Systems
Control lights via phone or voice.
Socket Installation
Add new power sockets anywhere.
Switch Repair
Fix or replace faulty switches.
PlumbingPlumbing repairs, new fittings, pipework, drainage and water-based heating services.13 services
Boiler Installation & Service
Fit and maintain boilers.
Central Heating Repairs
Diagnose and repair heating systems.
Clog Clearing
Clear blockages in drains and toilets.
Leak Repair
Fix leaks quickly and professionally.
Outdoor Tap Installation
Install outside garden taps.
Pipe Replacement
Replace damaged or corroded pipes.
Power Flushing
Clean central heating systems.
Radiator Installation
Add or replace heating radiators.
Shower Fitting
Install showers and water heaters.
Sink Replacement
Install new kitchen or bathroom sinks.
Toilet Installation
Fit new toilets or replace old ones.
Underfloor Heating (Water)
Warm floors with water heating.
Water Tank Installation
Fit loft or ground water tanks.
Heating & CoolingHeating controls, radiators, boilers and efficient temperature-control systems.6 services
Air Conditioning Installation
Cooling and heating solutions.
Boiler Installation & Repair
Fit and maintain boilers.
Central Heating Installation
Full central heating systems.
Heat Pump Installation
Eco-friendly heating solutions.
Radiator Balancing
Optimise heating efficiency.
Thermostat Installation
Fit smart thermostats.
RoofingRoof replacement and repair, flat roofs, roof windows, insulation and roofline maintenance.7 services
Chimney Repairs
Repointing and chimney maintenance.
Flat Roof Installation
Felt, GRP or EPDM flat roofs.
Guttering, Fascias & Soffits
Install or repair roofline systems.
Roof Insulation
Improve roof energy efficiency.
Roof Repairs
Fix leaks and damaged tiles.
Roof Replacement
Replace entire roofing systems.
Roof Window Installation
Fit skylights or roof windows.
Garage & GardenGarage conversions, garden rooms, patios, decking, fencing and practical outdoor structures.10 services
Artificial Grass Installation
Low-maintenance garden lawns.
Driveway Paving
Block, resin, or tarmac driveways.
Fence Installation & Repair
Build or fix boundary fences.
Garage Conversion
Turn garage into living space or office.
Garden Decking
Install wooden or composite decking.
Garden Room Installation
Build garden offices or gyms.
Patio Installation
Stylish patio areas in stone or paving.
Porch Extension
Extend your entrance with a porch.
Shed Installation
Fit new sheds and foundations.
Summerhouse Installation
Build custom wooden summerhouses.
Outdoor & LandscapingOutdoor construction, retaining walls, garden lighting and landscape improvements.2 services
Outdoor Lighting
Garden and security lighting.
Retaining Walls
Decorative or structural walls.
Maintenance & RepairsPlanned repairs, door and window work, appliance fitting and smaller property improvements.6 services
Appliance Installation
Fit washing machines, cookers, etc.
Door Hanging & Repair
Fit or repair internal/external doors.
General Repairs
Fix common household issues.
Handyman Services
Small jobs, assemblies and fixes.
Lock Replacement
Change or upgrade locks.
Window Replacement
Install energy-efficient windows.
Security SystemsHome security lighting, alarms, access control and connected entrance systems.4 services
Access Control Systems
Keyless entry systems.
Intruder Alarm Systems
Secure homes with alarms.
Security Lighting
Motion-sensor outdoor lighting.
Smart Doorbell Installation
Video doorbells for security.
Cleaning & FinishingFinal-detail work and finishing touches that leave completed spaces ready to use.1 services
Painting Touch-Ups
Small repairs and repainting.
A clear process
From first message to completed work
- 01
Share your brief
Send photos, drawings, measurements and the result you want to achieve.
- 02
Site assessment
We inspect access, existing conditions, services and the practical scope of work.
- 03
Clear quotation
You receive a project-specific scope and price instead of relying on a generic online figure.
- 04
Build and handover
Work is coordinated through completion, final checks and an agreed handover.
Before you enquire
Useful answers for planning your project
Every property is different. These answers explain what helps us assess the work accurately and what to expect at the early stage.
Which areas do you cover?
COFAD works across Greater London and can also consider projects in Surrey, Essex, Hertfordshire and Kent. Send us the postcode so we can confirm availability.
Can you manage a complete renovation?
Yes. We can discuss coordinated refurbishment work that combines building, decorating, plumbing, electrical work, kitchens, bathrooms and finishing trades.
Do I need drawings before contacting you?
Not for an initial conversation. Photos, approximate measurements and a short brief are enough to start. Larger structural projects may require architectural or engineering information before a final quotation.
Are online estimates final quotations?
No. Online figures are useful for early planning, but the final scope and price depend on access, condition, specification and a site assessment.
Can I send photos and plans by WhatsApp?
Yes. Sending clear photos, plans and your postcode is usually the quickest way for us to understand the project before arranging the next step.
Have a project in mind?
Send us the details and postcode
Photos, plans and approximate measurements help us give you a useful first response.