A garage conversion turns an integral or attached garage into a warm, habitable room by insulating the floor, walls and ceiling, replacing the garage door with a wall and window, and adding heating, lighting and finishes.
Getting a garage conversion right in Ashton-under-Lyne starts with understanding the house you already have: its age, how it was built and what has been altered over the years. We survey first, then commit on paper to a price that holds as long as the scope stays the same. Across the North West, guide prices run at £11,500–£26,500 including VAT, and homes in Dukinfield, Stalybridge and Droylsden are covered too.
- Guide price
- £11,500–£26,500 inc VAT
- Time on site
- 2–6 weeks on site
- Postcodes
- M34, M43, OL6, OL7 and SK14
- Planning rules
- England
- Local area
- Tameside
- Survey
- Free, with a written quote
What should you budget for a garage conversion in Ashton-under-Lyne?
In Ashton-under-Lyne, guide figures for a garage conversion sit at £11,500–£26,500, VAT included. We set them using rates for the North West, currently about 5% below the national guide. The table shows what pushes a project towards either end of the range; your own price is set after a free survey.
| Type of job | What it usually involves | Guide in Ashton-under-Lyne |
|---|---|---|
| Integral single garage | A garage within the house footprint, with sound walls and a roof already in place. | £9,500–£17,000 |
| Attached single garage | A garage beside the house that may need roof, wall or floor upgrades. | £13,500–£24,000 |
| Double or detached garage | A larger or separate building, often with a shower room or kitchenette. | £21,000–£43,000 |
What moves the price up or down:
- Garage type: integral, attached or detached
- Condition of the floor, walls, roof and foundations
- Heating method and ventilation for the new room
- Window and door choices and the level of finishes
What’s included?
- Infilling the garage door opening with insulated wall and new window
- Foundation checks under the door opening and footings where needed
- Damp-proof membrane, insulated floor and screed or raised timber floor
- Electrics, heating and ventilation by qualified trades, with certificates
- Plastering, skirting and decoration-ready finish
- Building control inspections and completion certificate
What are homes like around Ashton-under-Lyne?
Rows of Victorian red-brick terraces fill much of Manchester, Salford and the mill towns, with stone terraces in the Pennine fringes around Oldham and Saddleworth. South Manchester has Edwardian semis and villas, Wythenshawe was built as a large interwar garden suburb, and city-centre apartments and new estates continue to grow.
Two-up two-down terraces commonly suit loft conversions, kitchen extensions and kitchen refits. Many need repointing and roof work, while semis in the suburbs often take side extensions, driveways and replacement windows.
That mix of housing shapes how we approach a garage conversion in Ashton-under-Lyne: the age and construction of your home affect the materials, the method and, in the end, the price.
Do you need permission in Ashton-under-Lyne?
As Ashton-under-Lyne is in England, read the following with that system of planning and building control in mind. We check what applies to your house with the council before you receive a quote.
In England, converting an attached or integral garage into a room usually needs no planning permission, unless a planning condition on your estate has removed permitted development rights (common on newer houses). Changing the garage door to a wall and window is generally fine.
Building Regulations approval is needed: foundations for the infill wall, a damp-proof course, insulation, ventilation and fire safety.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
What happens after you get in touch?
Survey and measure
We begin by looking at the job in person. During the free survey we discuss options, materials and budget for a garage conversion, and photograph or measure anything the quote needs to reflect.
Quote in writing
You get the price in writing, itemised so you can see where the money goes. As long as the specification stays the same, that is the price you pay for a garage conversion.
Booking the work
We handle the paperwork side: checking whether planning permission or building control approval is needed, submitting applications where they are, and scheduling the trades and materials around your dates.
On site to finish
The job proceeds in the order set out in the programme, with dust and debris kept under control. Finally we tidy away, inspect the work together and pass the finished project over to you with its paperwork.
What you can expect from us
Questions about a garage conversion in Ashton-under-Lyne
How much does a garage conversion cost?
A typical single garage conversion costs £11,500–£26,500, depending on whether the garage is integral, attached or detached and what the room is for. Integral garages usually cost least because the walls and roof are already sound. Adding a shower room, upgrading a flat roof or levelling a sloping floor adds cost. As a guide, allow roughly £550–£1,100 per square metre plus fixed costs. We confirm a fixed price after the survey.
Does the floor need raising?
Garage floors are usually lower than the house floor and slope towards the door for drainage. Most conversions raise the floor with a damp-proof membrane, insulation and either a screed or a timber floor, so it lines up with the house and removes the step. The final level depends on ceiling height and the door into the house. We measure both during the survey.
Can I keep some storage space?
Many people keep part of the garage for storage by building a dividing wall, leaving a smaller store at the front behind the existing door and converting the area behind into a room or utility. This keeps the look of the house unchanged and gives you somewhere for bikes and tools. The converted part still needs the same insulation, ventilation and fire separation.
Is the price fixed?
Yes, for the specification we agree. Your written quote sets out exactly what is included at a fixed price. It only changes if you ask for something different, or if a problem the survey could not reasonably reveal later needs extra work. In either case we explain the change and confirm it in writing before going ahead.
Do you cover Dukinfield, Stalybridge and Droylsden?
Yes. As well as Ashton-under-Lyne, we cover Dukinfield, Stalybridge and Droylsden and the rest of Greater Manchester. Our coverage is UK-wide, so the process is the same wherever you are: a free site survey, a quote in writing that fixes the price for the agreed scope, and one point of contact while the work is planned and carried out.
Also covering areas around Ashton-under-Lyne
Our coverage in Ashton-under-Lyne includes M34, M43, OL6 and OL7. We also travel to Dukinfield, Stalybridge and Droylsden, so neighbouring addresses are looked after on exactly the same terms as those in town.