From £18,780
Member since August 2026
Relax... you have found a reliable extension builder in HP4. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in HP4 who cons...
From £18,780
Trusted and professional extension builder in HP4. Experienced in all extension buildering work and keeping within budget and on quote. DC Build & ...
From £18,812
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £18,420
NISUP BUILDING SERVICES Company specializes in the domestic and commercial building industry :1. Refurbishm...
From £18,932
Krystian Wojasiewicz is a trusted extension builder serving customers in HP4 and the surrounding area. Contact us to today to get a competitive quo...
From £18,932
Platinum Electrics is a Branch off Platinum Premier Projects who deal in all types of construction projects. Platinum Electrics are based in London...
From £18,612
Trusted and professional extension builder in HP4. Experienced in all extension buildering work and keeping within budget and on quote. D Dan Const...
From £18,684
Experienced extension builder ready to quote for your work. DIAL 1ST CONSTRUCTION LTD is the best extension builder in HP4. No obligation free quot...
From £18,660
Trusted and professional extension builder in HP4. Experienced in all extension buildering work and keeping within budget and on quote. PARKWAY MAI...
From £18,748
C & A Contractors is a trusted extension builder serving customers in HP4 and the surrounding area. Contact us to today to get a competitive quote ...

Builders charge between £18,420 (Nisup Building Services based in HA8) and £18,932 (Krystian Wojasiewicz based in HA9) in HP4 to build a garage, but these costs are only estimates.
Comparing extension builders estimates for building a garage gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get real quotes to build a new garage in HP4 by posting a job with HaMuch and we will send it to extension builders in HP4.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garage near Berkhamsted | £41 | £263 |
| Garage near Dacorum | £42 | £269 |
| Garage near Hemel Hempstead | £42 | £270 |
| Garage near Chesham | £42 | £277 |
| Garage near Dunstable | £41 | £272 |
| Garage near Rickmansworth | £42 | £278 |
| Garage near St Albans | £63 | £288 |
| Garage near Harpenden | £86 | £315 |
| Garage near Hazlemere | £40 | £272 |
| Garage near Luton | £41 | £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 - £17,736

Two storey extension - £88,354

Build a timber frame extension - £26,236

Build a swimming pool - £81,236

Single storey extension - £59,720

Side return extension - £44,155

Install an RSJ - £2,436

Outbuilding - £10,236

Build a Mansard loft conversion - £52,236

Loft conversion - £35,963

Build a kitchen extension - £42,236

Hip to gable loft conversion - £42,236

Granny annexe - £87,236

Garden office - £10,236

Convert a Garage - £16,236

Garage - £18,736

Build a flat roof extension - £22,236

Build a dormer loft conversion - £42,236

Concrete foundations - £6,486

Convert a bungalow loft - £29,236

Convert a basement - £40,155