1 review
From £88,288
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
From £88,036
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
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 £88,588
Need an Extension Builder in North Watford? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs fo...
From £88,420
Member since August 2026
Relax... you have found a reliable extension builder in North Watford. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in No...
From £88,288
Need an Extension Builder in North Watford? VA Structures has been helping local clients (10 mile radius) with their extension buildering jobs for ...
From £88,420
Trusted and professional extension builder in North Watford. Experienced in all extension buildering work and keeping within budget and on quote. D...
From £88,228
I am a qualified, builder, electrician and plumber. I have been working in the construction industry for over 23 years and have built everything fr...
From £88,456
Hi we have 15 years of experience in building and construction industry our specialization is bathrooms and renovations please have a look at the w...
From £88,636
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Costs range from £88,036 (SH Enterprise based in EC1V) to £88,636 (LALI BUILDERS based in NW10), 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 North Watford.
"Two storey extension" - WATFORD, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Watford | £43 | £278 |
| Two Storey Extension near Bushey | £42 | £276 |
| Two Storey Extension near Rickmansworth | £42 | £278 |
| Two Storey Extension near Borehamwood | £42 | £270 |
| Two Storey Extension near St Albans | £63 | £288 |
| Two Storey Extension near Dacorum | £42 | £269 |
| Two Storey Extension near Harrow | £43 | £271 |
| Two Storey Extension near Hemel Hempstead | £42 | £270 |
| Two Storey Extension near Gerrards Cross | £43 | £282 |
| Two Storey Extension near Hillingdon | £63 | £276 |
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 - £17,755

Two storey extension - £88,383

Build a timber frame extension - £26,255

Build a swimming pool - £81,255

Single storey extension - £60,104

Side return extension - £44,371

Install an RSJ - £2,455

Outbuilding - £10,255

Build a Mansard loft conversion - £52,255

Loft conversion - £36,143

Build a kitchen extension - £42,255

Hip to gable loft conversion - £42,255

Granny annexe - £87,255

Garden office - £10,255

Convert a Garage - £16,255

Garage - £18,755

Build a flat roof extension - £22,255

Build a dormer loft conversion - £42,255

Concrete foundations - £6,505

Convert a bungalow loft - £29,255

Convert a basement - £40,371