Buyerz Trading is an established and experienced local extension builder in AL1. Please contact us for a free, no obligation quote and competitive ...
Are you looking for resin driveways in North London? We are a leading builder of driveways and patios in North London. We have expertise in various...
IC Builders have been helping customers in St Albans and the surrounding area by providing professional, trustworthy building services.We k...
A1 Home Care Building Maintenance are here to help customers who need an Extension Builder in AL1. We offer a competitive rate to complete all your...
Need an Extension Builder in AL1? A.MILLS BUILDING SOLUTIONS LTD has been helping local clients (20 mile radius) with their extension buildering jo...
Bradley Stevens
Experienced extension builder ready to quote for your work. Apollo Decor Ltd is the best extension builder in AL1. No obligation free quotes and ma...
From £88,216
Relax... you have found a reliable extension builder in AL1. DK Home Refurbishment Limited is a friendly and reliable company based in AL1 who cons...
From £87,976
Nicholas Bilyk
Abalon is Western Canada’s leading foundation repair and basement waterproofing company, operating in the Edmonton area for over 40 years (50 yea...
From £88,204
Relax... you have found a reliable extension builder in AL1. Property Interior Services is a friendly and reliable company based in AL1 who conside...

Costs range from £87,328 (Apollo Decor Ltd based in AL2) to £88,804 (R. Newman Construction based in AL4), 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 AL1.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near St Albans | £63 | £289 |
| Two Storey Extension near Hatfield | £64 | £284 |
| Two Storey Extension near Harpenden | £86 | £316 |
| Two Storey Extension near Borehamwood | £42 | £270 |
| Two Storey Extension near Welwyn Garden City | £42 | £268 |
| Two Storey Extension near Hemel Hempstead | £42 | £270 |
| Two Storey Extension near Potters Bar | £43 | £273 |
| Two Storey Extension near Bushey | £42 | £276 |
| Two Storey Extension near Dacorum | £42 | £269 |
| Two Storey Extension near Watford | £43 | £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 - £17,676

Two storey extension - £88,264

Build a timber frame extension - £26,176

Build a swimming pool - £81,176

Single storey extension - £58,520

Side return extension - £43,480

Install an RSJ - £2,376

Outbuilding - £10,176

Build a Mansard loft conversion - £52,176

Loft conversion - £35,400

Build a kitchen extension - £42,176

Hip to gable loft conversion - £42,176

Granny annexe - £87,176

Garden office - £10,176

Convert a Garage - £16,176

Garage - £18,676

Build a flat roof extension - £22,176

Build a dormer loft conversion - £42,176

Concrete foundations - £6,426

Convert a bungalow loft - £29,176

Convert a basement - £39,480