Local Boston Spa extension builders, reviews & latest jobs
Fearnville Driveways
£27/hour
£204/day
Trusted and professional extension builder in Boston Spa. Experienced in all extension buildering work and keeping within budget and on quote. Fear...
"Second story extension" - LS23, job posted 16/11/25
David Clayden
£28/hour
£217/day
I am a building contracer with 30 years experience apprentice trained taking pride in my work
"Loft conversion" - LS22, job posted 23/04/24
Refresh Renovations - North Yorkshire & Leeds
£31/hour
£239/day
We are a part of the award-winning Refresh Renovation franchise network.Perhaps you want to freshen up the décor in your Victorian townhouse, or y...
AMG Design & Build
£31/hour
£208/day
Experienced extension builder ready to quote for your work. AMG Design & Build is the best extension builder in Boston Spa. No obligation free quot...
Atlantic UK
£27/hour
£209/day
Trusted and professional extension builder in Boston Spa. Experienced in all extension buildering work and keeping within budget and on quote. Atla...
Ashdale Projects Ltd
£29/hour
£220/day
Ashdale Projects Ltd is a trusted extension builder serving customers in Boston Spa and the surrounding area. Contact us to today to get a competit...
Earlswood Construction Ltd
£29/hour
£223/day
Experienced extension builder ready to quote for your work. Earlswood Construction Ltd is the best extension builder in Boston Spa. No obligation f...
G Voakes
£31/hour
£234/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Future Roofs York Ltd T/A Future Roofs
£28/hour
£218/day
Experienced extension builder ready to quote for your work. Future Roofs York Ltd T/A Future Roofs is the best extension builder in Boston Spa. No ...
Future Roofs York Ltd T/A Future Roofs
£30/hour
£225/day
Yorkshires Fibreglass Flat Roofing experts. Future Roof is an innovative York based company that specialises in GRP fibreglass flat roofing and any...
Zia Developments
£33/hour
£243/day
We are a Leeds based design and build building and property development firm. We specialize in property renovation/restoration, but also have much ...
The most important thing is do avoid handing over cash or paying large sums in advance. Be wary of paying cash for a cheaper job, i.e. to avoid VAT, you may be going down a slippery slope of not doing things properly which may eventually mean your job is also not done properly.
Agree when you intend to pay, ideally after you are satisfied with the completed job. If it is a big job agree a schedule of staged payments which is fair to both parties.
To avoid bad tradespeople and to ensure you can find them should they not answer a mobile;
- Get proper contact details and check them yourself
- Check if the company is verified on the Companies House website
- Get phone details, ideally a land line or 0800 number and check it
- Get a physical office address
Get quotes in writing by email or in person if possible. Getting quotes online or by text is ok (make sure you accept the offer by replying). For large projects make a written agreement, schedule of works and snagging plans as part of a working document. Also;
- Agree expected quality of workmanship and materials in advance
- When will work start and when will project be finished, what happens if project over runs ?
- How long is the guarantee on work and materials eg 12 months
- Discuss onsite behaviour in advance (no smoking, swearing or using mobile phones for non-work purposes)
- Agree that your Extension Builder will remove all debris and rubbish and what level of tidying up you want after job
Compare Boston Spa extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Chapeltown | £30 | £232 |
| Extension Builders near Harrogate | £29 | £225 |
| Extension Builders near Leeds | £31 | £236 |
| Extension Builders near Rothwell | £30 | £230 |
| Extension Builders near York | £30 | £229 |
| Extension Builders near Beeston | £31 | £236 |
| Extension Builders near Castleford | £30 | £225 |
| Extension Builders near Normanton | £30 | £233 |
| Extension Builders near Pudsey | £30 | £226 |
| Extension Builders near Selby | £30 | £240 |
Job estimates from extension builders near you
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.
Build a timber frame extension - £25,776
Garden office - £9,776
Granny annexe - £86,776
Build a flat roof extension - £21,776
Convert a Garage - £15,776
Hip to gable loft conversion - £41,776
Convert a bungalow loft - £28,776
Build a dormer loft conversion - £41,776
Build a swimming pool - £80,776
Build a Mansard loft conversion - £51,776
Concrete foundations - £6,026
Underpin a building - £17,276
Two storey extension - £87,664
Convert a basement - £34,980
Side return extension - £38,980
Loft conversion - £31,650
Garage - £18,276
Single storey extension - £50,520
Outbuilding - £9,776
Install an RSJ - £1,976
Build a kitchen extension - £41,776
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