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BRIARWOOD BUILDING CONTRS LTD
BRIARWOOD BUILDING CONTRS LTD is an established extension buildering business in Grantham. We come highly recommended and provide competitive quote...
"RSJ installation" - NG33, job posted 17/01/26
£42/hr
£159/day
LG Soffits & Fascias
Grantham, NG31
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£25/hr
£186/day
The Glass Box
The Glass Box is a trusted extension builder serving customers in Grantham and the surrounding area. Contact us to today to get a competitive quote...
Compare Grantham extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Grantham | £38 | £228 |
| Extension Builders near Newark-on-Trent | £33 | £241 |
| Extension Builders near Melton Mowbray | £31 | £222 |
| Extension Builders near Gedling | £33 | £242 |
| Extension Builders near Carlton | £33 | £242 |
| Extension Builders near Stamford | £35 | £248 |
| Extension Builders near West Bridgford | £33 | £245 |
| Extension Builders near Arnold | £35 | £244 |
| Extension Builders near Nottingham | £34 | £241 |
| Extension Builders near Spalding | £32 | £238 |
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 - £25,440

Garden office - £9,440

Granny annexe - £86,440

Build a flat roof extension - £21,440

Convert a Garage - £15,440

Hip to gable loft conversion - £41,440

Convert a bungalow loft - £28,440

Build a dormer loft conversion - £41,440

Build a swimming pool - £80,440

Build a Mansard loft conversion - £51,440

Concrete foundations - £5,690

Underpin a building - £16,940

Two storey extension - £87,160

Convert a basement - £31,200

Side return extension - £35,200

Loft conversion - £28,500

Garage - £17,940

Single storey extension - £43,800

Outbuilding - £9,440

Install an RSJ - £1,640

Build a kitchen extension - £41,440
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