From £88,432
Realise Your Luxury Dream Home With The Design And Build Partner You Can Trust.At MG Design & Build we have over 25 years of experience in the cons...
From £88,180
For more than 10 years, North Hertfordshire Construction LTD have been the name you can trust when it comes to building and development! We are kno...
From £88,468
Experienced extension builder ready to quote for your work. Bricklayers is the best extension builder in SG15. No obligation free quotes and many h...
From £88,540
Experienced extension builder ready to quote for your work. Specialist Building Refurbishm is the best extension builder in SG15. No obligation fre...
From £88,312
Need an Extension Builder in SG15? WILLMOTT DIXON CONSTRUCTION LI has been helping local clients (20 mile radius) with their extension buildering j...
From £88,252
Need an Extension Builder in SG15? Gilbert & Gregson Construction Ltd has been helping local clients (20 mile radius) with their extension builderi...
From £88,732
Need an Extension Builder in SG15? M SPINDLER CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs...
From £88,192
Draincall Services Ltd is a trusted extension builder serving customers in SG15 and the surrounding area. Contact us to today to get a competitive ...
From £88,612
M P BUILDING LIMITED is an established and experienced local extension builder in SG15. Please contact us for a free, no obligation quote and compe...
From £88,576
Experienced extension builder ready to quote for your work. HB Construction is the best extension builder in SG15. No obligation free quotes and ma...

Costs range from £88,180 (North Hertfordshire Construction Ltd based in SG5) to £88,732 (M SPINDLER CONSTRUCTION LTD based in SG6), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
Post your job on HaMuch and we'll send it to extension builders to SG15.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Letchworth | £44 | £283 |
| Two Storey Extension near North Hertfordshire | £44 | £283 |
| Two Storey Extension near Biggleswade | £41 | £268 |
| Two Storey Extension near Hitchin | £43 | £283 |
| Two Storey Extension near Stevenage | £44 | £282 |
| Two Storey Extension near Mid Bedfordshire | £42 | £276 |
| Two Storey Extension near Ampthill | £38 | £258 |
| Two Storey Extension near Luton | £41 | £278 |
| Two Storey Extension near Kempston | £44 | £273 |
| Two Storey Extension near South Bedfordshire | £45 | £278 |
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 - £17,786

Two storey extension - £88,430

Build a timber frame extension - £26,286

Build a swimming pool - £81,286

Single storey extension - £60,728

Side return extension - £44,722

Install an RSJ - £2,486

Outbuilding - £10,286

Build a Mansard loft conversion - £52,286

Loft conversion - £36,435

Build a kitchen extension - £42,286

Hip to gable loft conversion - £42,286

Granny annexe - £87,286

Garden office - £10,286

Convert a Garage - £16,286

Garage - £18,786

Build a flat roof extension - £22,286

Build a dormer loft conversion - £42,286

Concrete foundations - £6,536

Convert a bungalow loft - £29,286

Convert a basement - £40,722