From £26,240
Hertfordshire, AL1
JAS Housing Developments is an established and experienced local extension builder in Hertfordshire. Please contact us for a free, no obligation qu...
From £26,280
Hertfordshire, AL1
Need to find an Extension Builder near you for all your extension buildering work?
JGS Building Ltd provides a local, trusted extension bui...
From £26,240
Hertfordshire, AL1
Beswick Building and Renovations LTD is a trusted extension builder serving customers in Hertfordshire and the surrounding area. Contact us to toda...
From £26,136
Relax... you have found a reliable extension builder in Hertfordshire. Property Interior Services is a friendly and reliable company based in Hertf...
From £26,320
Hertfordshire, AL1
Relax... you have found a reliable extension builder in Hertfordshire. Designer Shade Solutions is a friendly and reliable company based in Hertfor...
From £26,440
Hertfordshire, AL1
IC Builders have been helping customers in St Albans and the surrounding area by providing professional, trustworthy building services.We k...
From £26,080
Trusted and professional extension builder in Hertfordshire. Experienced in all extension buildering work and keeping within budget and on quote. P...
From £26,144
Relax... you have found a reliable extension builder in Hertfordshire. DK Home Refurbishment Limited is a friendly and reliable company based in He...
From £26,216
Hertfordshire, AL4
Ebro Construction Group are here to help customers who need an Extension Builder in Hertfordshire. We offer a competitive rate to complete all your...

A timber frame extension built in Hertfordshire typically ranges from £26,024 (Planson’s Building Services based in AL1) to £26,440 (IC Builders based in AL1), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.
Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build a timber frame extension in Hertfordshire by posting a job with HaMuch and we'll send it to extension builders in Hertfordshire.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Timber Frame Extension near St Albans | £63 | £288 |
| Build A Timber Frame Extension near Hatfield | £64 | £283 |
| Build A Timber Frame Extension near Harpenden | £86 | £315 |
| Build A Timber Frame Extension near Borehamwood | £42 | £270 |
| Build A Timber Frame Extension near Welwyn Garden City | £42 | £268 |
| Build A Timber Frame Extension near Hemel Hempstead | £42 | £270 |
| Build A Timber Frame Extension near Potters Bar | £43 | £273 |
| Build A Timber Frame Extension near Bushey | £42 | £276 |
| Build A Timber Frame Extension near Dacorum | £42 | £269 |
| Build A Timber Frame 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 - £17,712

Two storey extension - £88,318

Build a timber frame extension - £26,212

Build a swimming pool - £81,212

Single storey extension - £59,240

Side return extension - £43,885

Install an RSJ - £2,412

Outbuilding - £10,212

Build a Mansard loft conversion - £52,212

Loft conversion - £35,738

Build a kitchen extension - £42,212

Hip to gable loft conversion - £42,212

Granny annexe - £87,212

Garden office - £10,212

Convert a Garage - £16,212

Garage - £18,712

Build a flat roof extension - £22,212

Build a dormer loft conversion - £42,212

Concrete foundations - £6,462

Convert a bungalow loft - £29,212

Convert a basement - £39,885