High-quality, fully managed design & build across Cheshire — Alderley Edge, Wilmslow, Knutsford and Warrington.
A cold garage, into a warm room you'll actually use.
High-quality, fully managed design & build across Cheshire — Alderley Edge, Wilmslow, Knutsford and Warrington. Fully managed design & build across Cheshire and the wider North West.
A significant structural renovation of our downstairs — removing internal walls to create a large open-plan living space, a new downstairs WC, new flooring throughout, a brand-new kitchen and patio doors. The quality of workmanship has been outstanding and the project was completed within the agreed timescales. Any minor snags were dealt with promptly, often almost immediately.
We started 2025 with a 2-storey chimney being taken out. The lads did such a good job we gave them the rest of our renovation — two small extensions, a new downstairs toilet and kitchen, upstairs bathroom, a bedroom move and renovation, finishing with a full back garden renovation. We've had many comments on how good the work looks, especially the brickwork.
We've recently had a knock-through between the lounge and dining room along with other internal and brick work. We're extremely pleased with the quality — everything finished to a high standard, the team were professional, tidy and clearly took pride in what they were doing. Communication with Craig was great throughout and they stuck to the agreed timeline.
After getting a few quotes for our kitchen, we chose Cheshire Design & Build NW and I'm glad we did. They turned up when they said they would, kept us updated, and got on with the job without any fuss. The finished kitchen looks fantastic. Reliable, respectful, and they clearly take pride in their work.
Excellent. Craig replied immediately and viewed the job. A detailed price and timeline was sent. Once the job was underway problems occurred — not Craig's fault — new plans were made and the job was done. Communication was 100%, that's important for me, and a cleaner is sent in at the end of the work. A great job done. Would definitely recommend.
Brilliant company, amazing team. Came to fit a lintel for me and brick up the outside of the house. The job was finished quickly and efficiently — very friendly and knowledgeable. Thank you so much, highly recommend.
This company has been the best to work with in terms of professionalism and quality — not like other companies I have worked with in the past. 10/10 service 👍
Highly recommend! Craig was very reliable and the quality of workmanship was outstanding! Thank you!
Great lads, very polite, showed up on time and did a great job.
A significant structural renovation of our downstairs — removing internal walls to create a large open-plan living space, a new downstairs WC, new flooring throughout, a brand-new kitchen and patio doors. The quality of workmanship has been outstanding and the project was completed within the agreed timescales. Any minor snags were dealt with promptly, often almost immediately.
We started 2025 with a 2-storey chimney being taken out. The lads did such a good job we gave them the rest of our renovation — two small extensions, a new downstairs toilet and kitchen, upstairs bathroom, a bedroom move and renovation, finishing with a full back garden renovation. We've had many comments on how good the work looks, especially the brickwork.
We've recently had a knock-through between the lounge and dining room along with other internal and brick work. We're extremely pleased with the quality — everything finished to a high standard, the team were professional, tidy and clearly took pride in what they were doing. Communication with Craig was great throughout and they stuck to the agreed timeline.
After getting a few quotes for our kitchen, we chose Cheshire Design & Build NW and I'm glad we did. They turned up when they said they would, kept us updated, and got on with the job without any fuss. The finished kitchen looks fantastic. Reliable, respectful, and they clearly take pride in their work.
Excellent. Craig replied immediately and viewed the job. A detailed price and timeline was sent. Once the job was underway problems occurred — not Craig's fault — new plans were made and the job was done. Communication was 100%, that's important for me, and a cleaner is sent in at the end of the work. A great job done. Would definitely recommend.
Brilliant company, amazing team. Came to fit a lintel for me and brick up the outside of the house. The job was finished quickly and efficiently — very friendly and knowledgeable. Thank you so much, highly recommend.
This company has been the best to work with in terms of professionalism and quality — not like other companies I have worked with in the past. 10/10 service 👍
Highly recommend! Craig was very reliable and the quality of workmanship was outstanding! Thank you!
Great lads, very polite, showed up on time and did a great job.
The cheapest extra room in the house
Pound for pound, converting an integral garage is the most affordable way to add usable square footage. The roof, the walls and the slab are already there — the work is insulation, damp course, front elevation rebuild and fit-out.
The common mistake is skipping the damp course and floor build-up because the existing garage slab looks flat enough. It's not. Garage floors sit below the house DPC, and converting without raising the floor and tying the DPC in is a rising-damp problem waiting to show up a few winters later.
A proper conversion, not a quick fix
Front elevation rebuild, damp-proofing, insulation, electrics and heating — all handled in one programme, under one contract.
- Feasibility Survey — Check on roof structure, damp course level, and whether the front brickwork needs rebuilding or just in-filling.
- Front Elevation Rebuild — Brick in-fill of the old garage door opening — matching the existing brick and bond so it doesn't look obvious.
- New Windows & Doors — UPVC or aluminium windows to match the rest of the house, plus glazed door where the elevation calls for it.
- Damp Proofing — New DPC and DPM tying in to the existing house — garage floors are almost always below the house DPC and need raising.
- Floor Build-Up — Hardcore, DPM, PIR insulation and screed — or engineered floor cassettes where ground levels allow.
- Insulated Wall Lining — 100mm PIR dry-lined to the walls, 50mm over the new ceiling, full cavity insulation where retrofit is possible.
- Central Heating Extension — New radiators tied back into the existing heating system — or underfloor heating on the new screed.
- Electrics & Plastering — New circuit from the consumer unit, skimmed plaster walls and ceilings, decorated and trimmed before handover.
Benefits of Garage Conversions
How We Handle Garage Conversions
Consultation
An initial conversation about your project — scope, brief, budget framing, and the outcome you want.
Site Visit
We come to the property to understand the existing space, take measurements, and discuss feasibility on the ground.
Quotation
A detailed written quotation covering every element of the work, with no hidden costs.
Design & Planning
Where required, we handle architectural drawings, planning permission, and Building Regulations in-house.
Full Project Delivery
Our long-standing in-house team — supported by trusted specialist subcontractors — delivers the entire build.
Completion
Final walk-through, sign-off, and your workmanship guarantee.
Ready for Garage Conversions?
Get in touch for a free, no-obligation site visit and a detailed written quotation. Cheshire-led, with Greater Manchester covered for the right projects.
Garage Conversions FAQs
Do I need planning permission for a garage conversion?
Most integral garage conversions are Permitted Development — they're changes within the existing building envelope. You'll still need Building Regulations approval, though. Conservation areas, Article 4 zones and some Cheshire council areas are exceptions — we check at the site visit.
How much does a garage conversion cost?
Every garage conversion is individually quoted — cost depends on the front-elevation rebuild, floor and damp works, insulation and whether washing or en-suite facilities are added. After a free site visit you receive a fully itemised written quotation with no hidden costs.
Will I lose my off-street parking?
Most converted garages weren't being used for a car anyway — but you should check if your deeds require off-street parking and whether the front driveway already meets that requirement. In some streets, losing a garage affects insurance premiums too.
How cold will it be?
Not if it's insulated properly. We'd typically dry-line the walls with 100mm PIR insulation, insulate the floor build-up to 120mm, and insulate the new roof void. Underfloor heating or a new radiator off the central heating system takes care of the rest.
Can I make it into a granny annex?
Yes, but using it as independent accommodation with its own entrance and kitchenette usually needs planning consent for a change of use. We'll walk you through the options.
How long does a garage conversion take?
Lead times typically run from several weeks to several months, depending on the scope of the work. Integral garage conversions are usually quicker because the existing roof and walls are already there. We confirm the programme in the written quotation.