Our expert team will visit your property, assess the project and give you a fully itemised, fixed-price quote — no hidden costs, ever.
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Free site visit — we come to you, anywhere we cover
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Fixed-price quote — the price we quote is the price you pay
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No pressure — take as long as you need to decide
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Fast response — we call back within 2 hours
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10-year guarantee — on all our workmanship
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Everything We Do
Our Full Range of Services
From single-storey rear extensions to full home renovations — one trusted team delivering exceptional results across London, Kent, Epping, Watford, Slough and Woking.
Most Popular
House Extensions
Rear, side return, double storey and wraparound extensions.
Transform your home with a beautifully designed house extension. Whether you need a larger kitchen, an extra bedroom or an open-plan living area, we deliver exceptional results that add real value to your property.
Rear · Side Return · Double Storey · Wraparound
Single-storey, double-storey and side return extensions
Full planning permission & building control handled
Building a new home from the ground up? We coordinate architects, structural engineers, planning consultants and every trade on your behalf, giving you a single point of contact throughout your entire build.
Whether you've just bought a tired property or want to modernise your existing home, our renovation team handles structural changes, full refurbishments and phased programmes of works across London and the surrounding areas.
The final finishing trades make or break a project. Our skilled finishing team delivers immaculate plastering, beautiful flooring, precision tiling and flawless decoration that elevates every space.
A new kitchen is one of the best investments you can make in your home. We handle the full process — design, supply, strip-out and fit — using premium brands or your choice of supplier.
A quality roof protects everything below it. Whether you need a complete re-roof, a new flat roof on an extension, or a pitched roof on a new build, our roofing team delivers watertight results with manufacturer-backed guarantees.
A loft conversion is one of the most popular ways to add a bedroom and bathroom to your home without losing garden space. We handle everything from structural calculations to the final fit-out.
Dormer, hip-to-gable and Velux/rooflight conversions
From a simple refresh to a full luxury en-suite redesign, our bathroom renovation specialists deliver beautiful, practical spaces built to last. We handle everything from tiling and plumbing to electrics and fitting.
"Build Skills transformed our cramped Victorian terrace. The rear extension is absolutely stunning — we've essentially gained a whole new room. Professional, tidy, and two weeks ahead of schedule."
SR
Sarah R.
Hackney, London
★★★★★
"They handled planning permission, building control — everything. Our double-storey extension added real value to the property. The whole process was stress-free from start to finish."
JM
James M.
Islington, London
★★★★★
"We got 4 quotes. Build Skills were not the cheapest but they were clearly the most professional. The kitchen remodel and rear extension together look incredible. Worth every penny."
PK
Priya K.
Ealing, London
FAQ
Frequently Asked Questions
Many single-storey rear extensions fall under Permitted Development rights, meaning no planning permission is required. Double-storey, side extensions and anything over permitted limits will need a full planning application. We assess this during your free site survey and handle the entire submission on your behalf.
A single-storey rear extension typically takes 10–14 weeks from groundworks to completion. Double-storey extensions are usually 16–22 weeks. This excludes the planning and design phase, which can add 8–12 weeks depending on whether planning permission is required.
Costs vary based on size, specification and your location. We provide a full fixed-price quote after your free site survey, with no hidden costs.
Yes — we manage the entire process. This includes architectural drawings, planning applications, party wall notices, building regulations submissions and building control sign-off. You don't need to deal with the council directly at any point.
If your extension is within 3–6 metres of a neighbouring property's foundations, or built on or near a boundary wall, you'll need to serve a Party Wall Notice on your neighbours. We handle this process and can recommend a qualified party wall surveyor if formal agreements are needed.
Most loft conversions in London fall under Permitted Development and do not require planning permission, as long as they meet certain conditions on size and materials. Mansard conversions and properties in conservation areas typically need planning permission. We'll confirm this at your free survey.
In London, a loft conversion typically adds 15–25% to a property's value. Adding a bedroom and bathroom is consistently one of the highest-ROI home improvements available.
A standard kitchen remodel typically takes 2–4 weeks once materials are on site. This includes strip-out, any structural changes, plumbing and electrical first fix, unit installation, tiling, flooring and finishing.
In most cases, converting an integral garage does not require planning permission as it's classed as an internal alteration under Permitted Development. Detached garages or properties in conservation areas may need permission. Building regulations approval is always required.
We provide a 10-year workmanship guarantee on all structural works and extensions, issued in writing on the day of handover. Roofing materials carry a 20-year manufacturer guarantee. We are fully insured with public liability and employer's liability cover.
Find Us & Verify Us
A Genuine, Registered Building Company
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Registered Company
Build Skills Limited Company No. 15364736 Status: Active
Fully covered by public liability & employer's liability insurance
Build Skills Limited is a company registered in England & Wales, company number 15364736. Registered office: 148 Staines Road, Ilford, IG1 2UU. Company records are publicly available and verifiable via Companies House.
