Garage conversions · Swindon & villages

Garage conversions in Swindon — a proper room, signed off.

Door out, window in, insulated, wired, plastered and inspected by Building Control. The cheapest way to add a real room to your house.

5.0 ★ 49 Google reviews
FMB No. 170197
Luke Regan MCIOB
£2m / £10m insured

Call 07460 232373 WhatsApp us Get a written quote

Finished garage conversion in Swindon — plastered room with a new window where the garage door was

What it costs

A straight answer on price

£18,000–£26,000

For a standard single garage of about 13 m²: garage door removed and the opening bricked up to match, insulated floor, walls and ceiling, new double-glazed window, electrics, plastering and decoration-ready, with Building Control included. Half-garage conversions cost less.

What's included

Garage door out, opening infilled in matching brick
Insulated floor, walls and ceiling to current regulations
New double-glazed window (and door if you want one)
Sockets, lights and heating tie-in by our electrician and plumber
Plastered, skirted and ready to decorate
Building Control inspections and the completion certificate
Site kept tidy, rubbish taken away
Written fixed price before we start

How it works

Four steps, no surprises

Free site visit

Luke checks the floor level, the walls, the roof and where the services run, and tells you what's possible.

Written fixed price

One figure, with what's included spelled out. No deposit-then-surprises.

Building Control notified

We submit the notice and book the inspections — you don't have to deal with the council.

Build and certificate

A few weeks on site. Inspected, signed off, and you get the certificate for when you sell.

Call 07460 232373 WhatsApp us

Real jobs

Before and after

Before: garage conversion in Swindon — the old up-and-over door — **Garage conversion — Swindon**Up-and-over door out, matching brick infill, new window, insulated and plastered.

After: garage conversion in Swindon — plastered room with a new window — **Garage conversion — Swindon**Up-and-over door out, matching brick infill, new window, insulated and plastered.

Inside the half-garage conversion in Tadpole Garden Village, plastered and ready to decorate — **Half-garage conversion — Tadpole Garden Village**Half the integral garage turned into a proper room; the other half kept for storage.

Outside the house in Tadpole Garden Village after the half-garage conversion — **Half-garage conversion — Tadpole Garden Village**Half the integral garage turned into a proper room; the other half kept for storage.

Half-garage conversion — Tadpole Garden VillageGarage door out, window in, insulated and plastered.

Before: The same house from the street — **The same house from the street**Matching brick infill — you would not know it was a garage.

After: The same house from the street — **The same house from the street**Matching brick infill — you would not know it was a garage.

See every project, start to finish

Not the cheapest. Not a cowboy.

What you get from us that the horror stories never had

A written fixed price

Scope spelled out before we start. It only changes if you change it — in writing.

Building Control sign-off

Inspected and certified. The paperwork a buyer's solicitor will ask for.

You deal with Luke

Luke Regan MCIOB quotes it, manages it and answers the phone.

Insured and guaranteed

£2m / £10m cover you can see, and a written warranty on every job.

See it done

Watch a garage door become a window

The garage door coming out and a window going in — the moment a garage stops being a garage.

Good to know

Common questions

Do I need planning permission?

Usually not. Most garage conversions fall under permitted development. We'll confirm your specific situation before you commit to anything.

Does it need Building Control sign-off?

Yes, always. Structure, insulation, damp-proofing, fire safety and ventilation all have to be certified. We handle the application and the inspections.

What does a garage conversion cost?

We price garage conversions at £1,400–£2,000 per m². A half or partial conversion typically starts around £12,000 including VAT. A full single garage generally runs £21,000–£30,000, depending on spec, glazing and whether you're adding plumbing. You get a fixed written quotation after a site visit — not a range.

How long does it take?

Typically two to four weeks. Longer if there's plumbing, drainage or structural work involved.

Is it worth doing?

It's normally the cheapest way to gain a proper room, because the foundations, walls and roof already exist. You're upgrading a structure you already own rather than building a new one.

Straightforward to work with

How a SwiftBrick project works

1. Plans, or no plans yet

2. Site assessment & detailed quote

3. Professional build, personally managed

4. Building Control sign-off & handover

Site assessment & detailed quote. Every quote is based on a personal site visit from Luke and a proper look at your plans. No vague estimates, no surprise extras. If there's a realistic possibility of additional cost, it's flagged upfront — not sprung on you halfway through.

Professional build, personally managed. Your project is managed on site by a Chartered professional, supported by a hand-picked team of experienced tradespeople. You get a direct number. The job runs to programme — or you're told why.

Building Control sign-off & handover. We don't call a job finished until Building Control has signed it off. You get a full debrief, the documentation, and an insurance-backed guarantee.

No plans yet? Luke offers a paid pre-construction site visit and consultation for a nominal fee — feasibility and honest advice before you commit serious money.

Start your project

Thinking about converting your garage?

Tell us what you want the space to become. We'll visit, assess it properly, and come back with a clear itemised written quote.

Request a Quote

Prefer to talk? 07460 232373 · luke@swiftbrick.co.uk