From £88,588
Need an Extension Builder in Brookmans Park? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs f...
From £88,072
Trusted and professional extension builder in Brookmans Park. Experienced in all extension buildering work and keeping within budget and on quote. ...
From £88,276
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in Brookmans Park. No obligation free q...
From £88,468
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £88,840
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
From £88,144
Experienced extension builder ready to quote for your work. Mr is the best extension builder in Brookmans Park. No obligation free quotes and many ...
From £87,976
JK Doors is a trusted extension builder serving customers in Brookmans Park and the surrounding area. Contact us to today to get a competitive quot...
From £88,288
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
From £88,468
skilled worker who specializes in completing a wide range of building and renovation projects
From £88,300
Relax... you have found a reliable extension builder in Brookmans Park. Derryard Construction Ltd is a friendly and reliable company based in Brook...

Costs range from £87,976 (JK Doors based in W1W) to £88,840 (Rafix Building based in EN4), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Hatfield | £64 | £283 |
| Two Storey Extension near Potters Bar | £43 | £273 |
| Two Storey Extension near Welwyn Garden City | £42 | £268 |
| Two Storey Extension near St Albans | £63 | £288 |
| Two Storey Extension near Cheshunt | £48 | £285 |
| Two Storey Extension near Hertford | £46 | £289 |
| Two Storey Extension near High Barnet | £43 | £272 |
| Two Storey Extension near Borehamwood | £42 | £270 |
| Two Storey Extension near Harpenden | £86 | £315 |
| Two Storey Extension near Hoddesdon | £46 | £296 |
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 - £17,728

Two storey extension - £88,342

Build a timber frame extension - £26,228

Build a swimming pool - £81,228

Single storey extension - £59,560

Side return extension - £44,065

Install an RSJ - £2,428

Outbuilding - £10,228

Build a Mansard loft conversion - £52,228

Loft conversion - £35,888

Build a kitchen extension - £42,228

Hip to gable loft conversion - £42,228

Granny annexe - £87,228

Garden office - £10,228

Convert a Garage - £16,228

Garage - £18,728

Build a flat roof extension - £22,228

Build a dormer loft conversion - £42,228

Concrete foundations - £6,478

Convert a bungalow loft - £29,228

Convert a basement - £40,065