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Charlotte Elizabeth Projects
Trusted and professional extension builder in Northamptonshire. Experienced in all extension buildering work and keeping within budget and on quote...
"Loft conversion" - NORTHAMPTONSHIRE, job posted 07/05/26
£27/hr
£216/day
K B CONTRACTORS (IND) LTD
Ken Burton
Experienced house builder. Eco structures from Denmark as well as conventional build. Extensions. Bathrooms. Kitchens and support steels when requi...
"Loft conversion , looking for quotes for a loft conversion with dorma preferably because of room and height. We’re looking for the shell with plumbing and electrics . No plans drawn up as of yet." - NN14, job posted 12/03/25
£26/hr
£202/day
Natural Structures Limited
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Loft conversion , looking for quotes for a loft conversion with dorma preferably because of room and height. We’re looking for the shell with plumbing and electrics . No plans drawn up as of yet." - NN14, job posted 12/03/25
£29/hr
£220/day
BHM Leicester
Experienced extension builder ready to quote for your work. BHM Leicester is the best extension builder in Northamptonshire. No obligation free quo...
£26/hr
£197/day
Langton Homes
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£25/hr
£184/day
Ascot Property Solutions Limited
Northamptonshire, NN17
Ascot Property Solutions Limited is an established and experienced local extension builder in Northamptonshire. Please contact us for a free, no ob...
£27/hr
£200/day
New Revival - Construction Management
Northamptonshire, NN6
New Revival - Construction Management is a trusted extension builder serving customers in Northamptonshire and the surrounding area. Contact us to ...
Compare Northamptonshire extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Market Harborough | £31 | £217 |
| Extension Builders near Corby | £30 | £214 |
| Extension Builders near Kettering | £34 | £237 |
| Extension Builders near Wigston | £28 | £210 |
| Extension Builders near Oadby | £28 | £207 |
| Extension Builders near Hamilton | £29 | £213 |
| Extension Builders near Leicester | £29 | £213 |
| Extension Builders near Wellingborough | £39 | £251 |
| Extension Builders near Northampton | £35 | £239 |
| Extension Builders near Rugby | £31 | £224 |
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 - £25,640
Garden office - £9,640
Granny annexe - £86,640
Build a flat roof extension - £21,640
Convert a Garage - £15,640
Hip to gable loft conversion - £41,640
Convert a bungalow loft - £28,640
Build a dormer loft conversion - £41,640
Build a swimming pool - £80,640
Build a Mansard loft conversion - £51,640
Concrete foundations - £5,890
Underpin a building - £17,140
Two storey extension - £87,460
Convert a basement - £33,450
Side return extension - £37,450
Loft conversion - £30,375
Garage - £18,140
Single storey extension - £47,800
Outbuilding - £9,640
Install an RSJ - £1,840
Build a kitchen extension - £41,640
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