For garage conversion builders
Garage conversion builders: get found by homeowners planning a garage conversion, when our map opens in your area
Sign-up for garage conversion builders opens soon. Listing will be free while we build the map, with at least 30 days’ notice before any charge.
Many homeowners price the job on Estiquote before they ask for quotes. When our map opens in their area, they’ll search it for “a garage turned into a room” and see the garage conversion builders who cover it.
Homeowners see £14,400 to £20,500 for an integral or attached single garage conversion before they ask you. Building work, mid-range finish, UK average outside London, including VAT, prices reviewed 25 September 2026. The cost guide.
Firm sign-up opens soon. Email support@estiquote.co.uk with your firm's name and trade, and we'll tell you the day it opens.
What homeowners see before they ask you
| Job | Building work, UK average | Building work, London |
|---|---|---|
| Garage conversion: Integral or attached single garage | £14,400 to £20,500 | £19,400 to £27,500 |
| Garage conversion: Detached single garage | £21,500 to £30,000 | £29,000 to £40,500 |
| Region | Building work |
|---|---|
| UK average (outside London) | £14,400 to £20,500 |
| London | £19,400 to £27,500 |
| South East | £16,600 to £23,500 |
| East of England | £15,400 to £22,000 |
| South West | £15,000 to £21,000 |
| West Midlands | £14,000 to £19,800 |
| East Midlands | £13,700 to £19,400 |
| Scotland | £13,700 to £19,400 |
| North West | £13,400 to £19,000 |
| Yorkshire and the Humber | £13,200 to £18,800 |
| Wales | £13,000 to £18,400 |
| North East | £12,700 to £18,000 |
| Northern Ireland | £11,800 to £16,700 |
| Fee | Typical range |
|---|---|
| Building regulations drawings | £1,200 to £3,000 |
| Building control (council, full plans) | £460 to £660 |
What homeowners ask garage conversion builders
With what our guides tell them. Answer these in your quote, and later on your listing.
Does the conversion need building regulations approval?
Our garage conversion guide tells homeowners every conversion needs building regulations approval, and that most in England don’t need planning permission unless permitted development rights have been removed.
What does building control cost for a garage conversion?
About half the councils we checked in England and Wales charge within £460 to £660 for a garage conversion, including VAT. Each council’s own charge is on its local page, so say whether your price includes the fee.
What happens to the garage door opening?
The door infill, a new window and insulation to the floor, walls and roof are the first items on the checklist homeowners use. Price each one so the quote reads the same way.
What homeowners will ask you to confirm
From the checklist in our garage conversion guide:
- Survey: Foundations, walls, damp and roof condition.
- Permissions: Planning check and building control.
- Envelope: Door infill, window, floor, wall and roof insulation.
- Services: Electrics, heating, and any plumbing.
- Finishes: Plaster, flooring and decoration.
What we’ll check before garage conversion builders appear
- Companies House, if you’re a limited company or LLP: we’ll check the company is active.
- Only if you take waste away: Waste carrier registration. The law and the registers
- Who runs the business: an ID check, or a code letter for a company’s director.
Badges you can add (not needed to appear): TrustMark and Federation of Master Builders, and insurance.
Your listing will say, for example: Checked by Estiquote on 30 October 2026:
If you’re a limited company
- Active company at Companies House
If you’re a sole trader
- Sole trader: business details checked by Estiquote
How to list
When sign-up opens for garage conversion builders, have ready your company number if you’re a limited company, your waste carrier registration number if you take waste away. Then you’ll create your account and send your profile for checks; we’ll usually reply within 5 working days.
Homeowners will choose up to 3 firms by name, and reviews will come only from real jobs, checked by a person: how quote requests and reviews will work.
Firm sign-up opens soon. Email support@estiquote.co.uk with your firm's name and trade, and we'll tell you the day it opens.
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