From £34,350
Croft-Hill Building & Joinery is a trusted extension builder serving customers in Spennymoor and the surrounding area. Contact us to today to get a...
From £31,500
Need an Extension Builder in Spennymoor? K & J Property has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
From £33,450
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £33,000
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £31,275
Need an Extension Builder in Spennymoor? Northern Roofline Solutions has been helping local clients (20 mile radius) with their extension builderin...
From £34,125
Need to find an Extension Builder near you for all your extension buildering work?
SBC (BUILDERS) LIMITED provides a local, trusted extensi...
From £32,325
Need to find an Extension Builder near you for all your extension buildering work?
ANWEN CONSTRUCTION provides a local, trusted extension b...
From £34,725
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in Spennymoor. Please contact us for a free, no obligation quote...
From £42,300
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...

Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in Spennymoor by posting your job to extension builders in Spennymoor.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Spennymoor | £38 | £248 |
| Loft Conversion near Bishop Auckland | £39 | £247 |
| Loft Conversion near Newton Aycliffe | £39 | £227 |
| Loft Conversion near Durham | £47 | £267 |
| Loft Conversion near Chester-le-Street | £35 | £242 |
| Loft Conversion near Peterlee | £35 | £222 |
| Loft Conversion near Darlington | £60 | £222 |
| Loft Conversion near Stanley | £34 | £242 |
| Loft Conversion near Seaham | £34 | £229 |
| Loft Conversion near Washington | £33 | £251 |
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.

Underpin a building - £17,562

Two storey extension - £88,092

Build a timber frame extension - £26,062

Build a swimming pool - £81,062

Single storey extension - £56,232

Side return extension - £42,193

Install an RSJ - £2,262

Outbuilding - £10,062

Build a Mansard loft conversion - £52,062

Loft conversion - £34,328

Build a kitchen extension - £42,062

Hip to gable loft conversion - £42,062

Granny annexe - £87,062

Garden office - £10,062

Convert a Garage - £16,062

Garage - £18,562

Build a flat roof extension - £22,062

Build a dormer loft conversion - £42,062

Concrete foundations - £6,312

Convert a bungalow loft - £29,062

Convert a basement - £38,193