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Picking your Local Builder
Need to find an Extension Builder near you for all your extension buildering work?
Picking your Local Builder provides a local, trusted ext...
"Loft extension (dormer)" - NN5, job posted 21/08/26
Twelftree Builders
Need an Extension Builder in NN7? Twelftree Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
"Granny annexe" - NN5, job posted 04/08/26
Wright Building
Relax... you have found a reliable extension builder in NN7. Wright Building is a friendly and reliable company based in NN7 who consider no job as...
"I need a quote for a second-floor extension sized 3m x 3.5m. Work includes structure, walls, insulation, roof, windows, and basic internal finishing, plus connection to the existing house. Please confirm: Total cos with my material and if with your material Time to complet and when you can..." - NORTHAMPTON, job posted 19/11/25
DAB & K&G Building Services
Need an Extension Builder in NN7? DAB & K&G Building Services has been helping local clients (20 mile radius) with their extension buildering jobs ...
"Side return extension" - NORTHAMPTON, job posted 03/06/25
Catling Building Services Ltd
Need an Extension Builder in NN7? Catling Building Services Ltd has been helping local clients (20 mile radius) with their extension buildering job...
"Loft conversion" - NORTHAMPTON, job posted 29/01/25
The Builders - Northampton Limited
Neil Donlevy
Need to find an Extension Builder near you for all your extension buildering work?
The Builders - Northampton Limited provides a local, tru...
"Loft conversion" - NORTHAMPTON, job posted 10/01/25
ATJ BUILDING & GROUNDWORKS
ATJ BUILDING & GROUNDWORKS is a trusted extension builder serving customers in NN7 and the surrounding area. Contact us to today to get a competiti...
"Loft conversion, 2 beds dormer" - NORTHAMPTON, job posted 23/11/24
A B Construction
Andrew Buswell
ab construction has been trading for over 40 years we undertake all building works from modernisations to extensions and new builds drives patios a...
"Dormer Loft conversion" - NORTHAMPTON, job posted 02/04/24
£37/hr
£242/day
L.D Design & Build Ltd.
L.D.Design&Build means a holistic approach to building, one simple way of finding everything you need for your building project under the ‘same r...
"Loft conversion" - NORTHAMPTON, job posted 24/03/24
£25/hr
£202/day
GW BUILDERS
Gary Warren
Brickwork specialist with 30 years experience.
From repointing, small repairs up to building extensions and houses.
Stonework...
"Basement conversion" - NORTHAMPTON, job posted 13/02/24
£37/hr
£255/day
Tim Howard Smith Ltd
Tim Howard Smith Ltd is an established extension buildering business in NN7. We come highly recommended and provide competitive quotes for your wor...
"Loft conversion" - NORTHAMPTON, job posted 30/10/23
£36/hr
£241/day
Fountain Construction Ltd
Fountain Construction Ltd is an established and experienced local extension builder in NN7. Please contact us for a free, no obligation quote and c...
"Loft conversion" - NORTHAMPTON, job posted 02/09/23
Compare NN7 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Northampton | £35 | £239 |
| Extension Builders near Daventry | £31 | £230 |
| Extension Builders near Wellingborough | £39 | £251 |
| Extension Builders near Milton Keynes | £39 | £263 |
| Extension Builders near Rushden | £34 | £231 |
| Extension Builders near Kettering | £34 | £237 |
| Extension Builders near Bletchley | £39 | £265 |
| Extension Builders near Rugby | £31 | £224 |
| Extension Builders near Market Harborough | £31 | £217 |
| Extension Builders near Bedford | £45 | £278 |
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 - £25,928
Garden office - £9,928
Granny annexe - £86,928
Build a flat roof extension - £21,928
Convert a Garage - £15,928
Hip to gable loft conversion - £41,928
Convert a bungalow loft - £28,928
Build a dormer loft conversion - £41,928
Build a swimming pool - £80,928
Build a Mansard loft conversion - £51,928
Concrete foundations - £6,178
Underpin a building - £17,428
Two storey extension - £87,892
Convert a basement - £36,690
Side return extension - £40,690
Loft conversion - £33,075
Garage - £18,428
Single storey extension - £53,560
Outbuilding - £9,928
Install an RSJ - £2,128
Build a kitchen extension - £41,928
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