Garage Conversions
Garage Conversions
Transform your unused garage into valuable living space. Garage conversions are one of the fastest and most cost effective ways to add space to your home.
- Typically 30 to 50% cheaper than new extensions
- Most don't require planning permission
- Quick turnaround: 2 to 4 weeks typical
- No loss of garden space
- Can create self contained annexe with ensuite
Industry average
£22,000 – £30,000
Our starting price
£18,000
Simple single garage conversion. Reusing the existing structure means faster completion and lower costs.
Why we're more affordable
- Internal supply chains — we source materials at trade prices
- Optimised systems — efficient planning reduces wasted time and materials
- Strong project management — we complete on time, keeping costs under control
Fixed price quote within 5 working days
Verified client reviews and 350+ completed projects
About this service
About garage conversions
A garage conversion transforms your existing garage into habitable living space such as a bedroom, home office, playroom, or annexe. Because the structure already exists, conversions are typically faster and cheaper than new extensions. Single garage conversions usually start from £18,000 and take 2 to 4 weeks. The work includes insulation, flooring, electrics, heating, and making good.
Who it's for
Homeowners with unused or underused garages who need additional living space. Garage conversions are ideal for creating home offices, teenage bedrooms, gyms, or self contained annexes for relatives.
GOV.UK: Building Regulations for Garage ConversionsScope
What's Included
- Survey and design consultation
- Building Regulations application
- Insulation to walls, floor, and roof
- New electrics, heating, and ventilation
- Flooring, plastering, and decoration
Process
How it Works
Survey & Design
We assess your garage's structure and discuss how you want to use the space.
Preparation
Garage cleared, existing floor assessed or replaced, damp proofing addressed if needed.
Conversion
Insulation, stud walls, electrics, heating, flooring, plastering, and decoration completed in 2 to 4 weeks.
Our work
Related completed work
Reviews
What homeowners say
What homeowners say about working with us on garage conversions.
“I have just had a garage conversion and rear extension to garden via a bifold door, with a steel framework completed by Brits. As part of the work they also had to extend the central heating system and fully wire the area. The quality of work has been very good, the tiling work is excellent and the general finish is great. The workers have been reliable, clean and efficient and the project has been completed to the price agreed. Overall an excellent service and I will use them again in the future.”
Julian
House Extension · Harrow, HA5 ·
Review on our former Rated People profile
“Good, fast and on time construction for the conversion of my garage. Knowledgeable and helpful at every stage.”
Nadeem
Garage Conversion · Slough, SL0 ·
Review on our former Rated People profile
“They converted our garage into a home office in a few weeks. Warm, quiet and the new brickwork matches the house exactly.”
Priya, Ealing
Garage Conversion · Nov 2026
FAQ
Common Questions
Most garage conversions fall under Permitted Development and do not require planning permission. Exceptions include listed buildings, conservation areas, and conversions that create separate self contained accommodation. We always verify before work starts.
Single garage conversions typically cost £18,000 to £28,000 depending on insulation upgrades, windows, heating, and finish level. Double garage conversions and self-contained layouts cost more.
A straightforward single garage conversion takes 2 to 4 weeks. More complex conversions with plumbing for bathrooms or kitchens may take 4 to 6 weeks. We provide a detailed programme before starting.
Yes, if the garage was unused. Converting to a bedroom, office, or annexe typically adds more value than a garage, particularly in London where parking is less critical than space. However, consider whether you'll miss the storage or parking.
Where we build garage conversions
Our team is based in Harrow and works across London and the Home Counties, including:
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Ready to start your project?
Fixed price quote within 5 working days. No obligation.