Single Garage Conversions Manchester , about a week

A single garage conversion is the quickest way to add a proper, warm room to your home without building outwards. We have been turning single garages across Greater Manchester into bedrooms, offices and snugs since 2002.

  • Guest bedroom
  • Home office with storage
  • Bedroom with compact ensuite
  • Snug or TV room
Guide price from
£11k
Days for a straightforward single
7
Year warranty
10
Google rating
5.0★
ManchesterBuryBoltonStockportOldhamRochdaleSalfordTraffordTamesideWiganWarrington

(Guide price · Greater Manchester 2026)

£11,000 – £17,000

Typical 2026 guide for a single garage to bedroom or office in Greater Manchester. Adding an ensuite takes most projects to around £16k–£24k. Every quote is fixed and itemised after a free survey. You get a fixed, itemised price after a free survey.

Included as standard

  • Free survey and fixed, itemised quote✓
  • Building Regulations application, inspections and completion certificate✓
  • Garage door removed and new infill wall built with a window✓
  • Floor raised, damp-proofed and insulated✓
  • Walls and ceiling insulated, boarded and plastered✓
  • Electrics, sockets and lighting to suit your layout✓
  • Radiator added to your heating system✓
  • 10-year warranty on the finished conversion✓

Fixed price after a free survey

Why a single garage conversion makes sense

Most single garages in Greater Manchester were built for a car that no longer fits. Modern cars are wider than the ones these garages were drawn around, so the space ends up holding bikes, boxes and a freezer. Converting it gives you a usable room of roughly the size of a small double bedroom, inside the footprint you already own.

Because the walls, roof and slab are already there, a single garage conversion avoids most of the cost and disruption of an extension. There is no digging for new foundations across the garden and, for most attached garages, no planning application. The work is about making an existing shell warm, dry and compliant, which is exactly what we have spent over two decades doing.

It is also a change you will notice every day. A spare bedroom means guests no longer take over the lounge, and a dedicated office means the laptop finally leaves the kitchen table. As one customer put it: "The extra space from the garage conversion is just what we needed." (Homeowner, Stalybridge)

Convert Your Garage project
Real Convert Your Garage project

Single garage conversion cost in Manchester

For a typical single garage turned into a bedroom or office, our 2026 guide is around £11,000 to £17,000 across Greater Manchester. Where the room sits within the band depends on how much work the shell needs: the state of the floor, whether the walls are single skin, the type of roof, and how many sockets, radiators and windows you want.

Adding a shower room or ensuite usually takes the total to around £16,000 to £24,000, because of the drainage, extraction and tiling involved. If you only want to convert the front half and keep storage at the back, a partial conversion typically costs around £7,000 to £11,000.

We give a fixed, itemised quote after a free survey, so you know exactly what is included before anything starts. You can compare all our guide prices on the garage conversion cost page.

“The extra space from the garage conversion is just what we needed. The team was super friendly and made the whole thing easy.”

★★★★★ Homeowner, Stalybridge · Garage conversion

(Ideas & layouts)

Single garage conversion ideas that suit the space

  1. 01

    Guest bedroom

    A single garage comfortably takes a double bed, bedside tables and a wardrobe along one long wall, with the window at the foot of the bed.

  2. 02

    Home office with storage

    Put the desk under the front window for daylight and run shelving or cupboards along the back wall for files and equipment.

  3. 03

    Bedroom with compact ensuite

    Take the back metre or so for a shower, toilet and basin, leaving the front of the room for sleeping. Ideal for a teenager or relative.

  4. 04

    Snug or TV room

    A smaller room away from the main lounge makes a cosy second sitting room, with the TV on the end wall and a sofa facing it.

  5. 05

    Front room plus utility

    Convert the front two-thirds into a habitable room and keep a utility or laundry area at the back, separated by a stud wall.

  6. 06

    Playroom

    A warm, carpeted space with plenty of sockets and built-in toy storage keeps clutter out of the rest of the house.

(Before & after)

Same garage, about a week apart

A real single garage conversion by our team. Drag the handle to compare the cluttered garage with the finished room.

The garage after conversion
The same garage before conversion

How long does a single garage conversion take?

A straightforward single garage conversion can be completed in as little as 7 days. That pace comes from experience: our teams know the sequence, materials arrive when they are needed, and the trades follow on from each other without gaps.

A typical week runs from removing the garage door and building the new infill wall with a window, through raising and insulating the floor, insulating the walls and ceiling, first-fix electrics and heating, plastering, and then second fix and decoration. Adding an ensuite, moving a boiler or dealing with an awkward roof will add time, and we tell you that at quote stage rather than halfway through.

Building Regulations still apply however quick the build. We submit the application, arrange the inspections and hand you the completion certificate at the end.

While the work is under way you can usually stay at home as normal. Most of the activity happens inside the garage itself, and the connection into the house is typically one of the last jobs, which keeps dust and disruption to a minimum.

Convert Your Garage project
Real Convert Your Garage project

Getting the most from a narrow room

The challenge with a single garage is proportion. It is long and fairly narrow, so the layout has to work hard. We usually place the new window in the old door opening at the front, which gives good light and the escape window Building Regulations ask for, then think carefully about where the door into the house goes and where furniture will sit.

Small decisions matter here: a radiator on the end wall rather than the long side, sockets where a desk or bed will actually go, and a boiler boxed into a neat cupboard rather than left exposed. If you want ideas for specific rooms, see our pages on garage to bedroom and garage to home office conversions.

7 days
A straightforward single garage can be finished in as little as a week

(Real projects)

New fronts and finished rooms

See all projects →
  • Convert Your Garage project: front
  • Convert Your Garage project: front
  • Convert Your Garage project: front
  • Convert Your Garage project: front
  • Convert Your Garage project: front
  • Convert Your Garage project: front
  • Convert Your Garage project: front
  • Convert Your Garage project: front

(How it works)

Survey to sign-off, with one team

  1. 01

    Free survey & design

    We measure up, look at the floor level and the door opening, and talk through how you will use the room.

  2. 02

    Fixed, itemised quote

    Drawings and a fixed price, line by line, so you know exactly what you are paying for before anything starts.

  3. 03

    Building Regs submitted

    We make the Building Regulations application and book every inspection along the way.

  4. 04

    The build

    Door out, insulated wall and window in, floor raised, insulation, electrics, heating and plaster.

  5. 05

    Sign-off

    Finishing to your spec, then the completion certificate and your 10-year warranty.

“It really is amazing what they have managed to achieve in the space of 2 weeks and is so much better than we expected.”

★★★★★Verified customer · Garage conversion · 5.0 from 108 Google reviews

(Good to know)

Single Garage Conversions: FAQs

Still got a question? 0161 766 6518

  • 01How much does a single garage conversion cost?

    In Greater Manchester, a single garage conversion to a bedroom or office typically costs around £11,000 to £17,000 in 2026. With an ensuite, expect around £16,000 to £24,000. We confirm a fixed price after a free survey.

  • 02How long does a single garage conversion take?

    A straightforward single garage can be converted in as little as 7 days. Ensuites, boiler moves or extra structural work add time, and we set out the programme in your quote.

  • 03Do I need planning permission to convert a single garage?

    Usually not for an attached or integral garage, as it is normally permitted development. You may need permission in a conservation area, for a listed building, or if a planning condition removed permitted development rights, which is common on newer estates. Building Regulations approval is always needed, and we handle it.

  • 04Is a single garage big enough for a bedroom?

    Yes. A typical single garage takes a double bed and wardrobe, and many have room for a compact ensuite at the back. We will show you what fits at the survey.

  • 05What happens to the boiler or meters in my garage?

    Boilers are boxed into a neat cupboard so the room still feels finished. We work around meters and fuse boards and agree the best position with you before work starts.

  • 06Do you convert single garages near me in Manchester?

    We cover the whole of Greater Manchester and Warrington from our base in Unsworth, Bury. See our areas we cover page for your borough.

(Free quote · No obligation)

Let's draw yours.

Tell us about your garage and we'll come and measure up for free, anywhere in Greater Manchester and the North West.

Existing · your garage
Proposed · it becomes
Or call the office 0161 766 6518

enquiries@convertyourgarage.com
Moss View, 4 Killy Lane, Unsworth, Bury BL9 8GA

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