High-quality, fully managed design & build across Cheshire — Alderley Edge, Wilmslow, Knutsford and Warrington.
How much does a loft conversion cost?
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 roof you already have decides most of the price
A loft conversion is one of the most cost-effective ways to add a bedroom — but the range is wide, and most of it is decided before you choose a single finish. It comes down to what's above your head right now.
What drives the cost of a loft conversion
- Roof structure — a traditional cut roof is far easier to convert than a modern trussed roof, which needs significantly more structural work.
- Head height — if there isn't enough, the floor has to be lowered or the roof raised, and that changes everything.
- Conversion type — Velux-only is the cheapest; a rear dormer adds volume and cost; hip-to-gable and mansard are bigger structural jobs again.
- Structural steel — purlin-replacing steels and floor-spanning beams to carry the new floor.
- Staircase — where it lands, and what it costs you in the room below. Often the trickiest design decision in the project.
- En-suite — adding a bathroom means plumbing, waste runs, possibly boosting hot water, and full tanking.
- Fire safety — a protected staircase enclosure, FD30 doors and mains-interlinked alarms are required, not optional.
- Planning — rear dormers often fall under permitted development; front-facing or conservation-area work needs consent.
How we price it
We survey the roof first — ridge height, truss type, existing structure — and tell you honestly whether it's worth converting, or whether an extension would give you more usable space for similar money. Then a free site visit produces a fully itemised written quotation with a clear programme.
See our loft conversions service — or house extension costs.
Benefits of Loft Conversion Cost
How We Handle Loft Conversion Cost
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 Loft Conversion Cost?
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.
Loft Conversion Cost FAQs
Why is there such a wide range in loft conversion prices?
Because the roof you already have decides most of it. A traditional cut roof converts easily; a modern trussed roof needs far more structural work. Add head height, dormer type and whether you want an en-suite, and two lofts in identical houses can differ substantially.
Is a loft cheaper than an extension?
Usually, yes — you're working inside an existing envelope and not touching the garden. But if head height is marginal and the floor has to be lowered, the gap narrows fast. We'll tell you straight which gives you more usable space for your money.
Does an en-suite add much?
It's a meaningful addition — plumbing, waste runs, full tanking and often boosting the hot water so a new shower actually performs. Worth doing properly if you're doing it at all.
Is the quotation free?
Yes — the survey, the site visit and the detailed written quotation are all free and carry no obligation.