Could your garage be a better room?
Living space, a home office or better storage — every conversion starts with an assessment of the structure, approvals and services.
Assessment first, then design.
Not every garage converts the same way. Wall construction, floor levels, damp protection, insulation, ventilation, fire safety and access all affect what's possible. We look at your garage, explain the considerations and what approvals may be needed, then quote for an agreed scope.
We can discuss practical options for converting an existing garage after reviewing the building, proposed use, services and any approvals needed. Explore our related extensions, dormer and refurbishment work for examples of the team’s broader building experience.
What a garage could become.
Living space
A snug, playroom, bedroom or extra reception room. Habitable rooms usually need Building Regulations approval.
Home office
A separate work space, with insulation, ventilation, lighting and sockets planned in.
Storage or utility
A practical upgrade with better doors, lighting and shelving, without full habitable conversion.
Possibilities depend on survey, structure and approvals
What we look at.
Structure & openings
Replacing the garage door with a wall and window, or forming new openings, is assessed by a structural engineer where needed.
Building Regulations
Converting to a habitable room usually needs Building Regulations approval covering insulation, ventilation, fire safety, escape and more.
Planning
Many conversions don't need planning permission, but some do — for example where permitted development rights have been removed.
Floor & damp
Garage floors are often lower and may lack damp protection; raising and insulating the floor is common.
Electrics & plumbing
Arranged with suitably qualified trades where appropriate, such as new circuits, heating or a sink.
Integral garages
A door between the house and an integral garage may need fire-rated specification.
How a garage conversion is assessed.
- Step 01
Initial chat
Tell us how you want to use the space and send photos if you can.
- Step 02
Site assessment
We look at walls, floor, roof, door opening and services.
- Step 03
Approvals advice
We explain likely structural, Building Regulations and planning points and what may need professional input.
- Step 04
Scope & quotation
An itemised written quotation for the agreed work, with any exclusions stated.
- Step 05
Conversion
Work goes ahead once required approvals are in place.
- Step 06
Handover
We walk through the finished space and any sign-off documentation applicable to your project.
Honest expectations.
- Approval timescales depend on the authority and the project; we can't promise fixed approval dates.
- Some garages need more work than expected — for example, a weak roof or no foundations under the door opening.
- Losing a garage may affect parking; it's worth considering before committing.
- Our 2-year workmanship guarantee applies to eligible Alliance work.
Garage conversions in Rochdale, Oldham & Greater Manchester
We're based in Rochdale and work across Greater Manchester, including Milnrow, Shaw, Royton, Oldham, Middleton and Bury.
Frequently Asked Questions
Get a quote for Garage Conversions.
Tell us about your project and we'll be back in touch — we aim to respond the same working day.
- Family-run since 1998
- Fully insured (£5m public liability)
- 2-Year Workmanship Guarantee
- Assure registered · REHAU Authorised · City & Guilds
- We aim to respond the same working day
- 1Tell us about the work
A few details about the job and where it is.
- 2We review your enquiry
A member of the Alliance team looks at what you need. We aim to respond the same working day.
- 3We get in touch
We'll discuss the job with you and arrange a quotation — with a site visit where the work needs one.
Speak directly with a member of the family-run team.
No call centres, no scripts. Just honest guidance from the people who'll be doing the work.
- Family-run since 1998
- Fully insured (£5m public liability)
- 2-Year Workmanship Guarantee
- Assure registered · REHAU Authorised · City & Guilds
- We aim to respond the same working day