Steve Bannister
We are a small family run business with over 20 years experience in brickwork, bathroom/kitchen fitting, roofing, landscaping, fencing, tiling and ...
Chris Bond
We are a Small Family run business with over 30 years experience in the building trade, Carpentry is my main trade, with NVQ Level 2.
Devscapes is an established extension buildering business in Waterlooville. We come highly recommended and provide competitive quotes for your work...
Rob Butler
Need to find an Extension Builder near you for all your extension buildering work?
Oakstone Developments provides a local, trusted extensio...
Park Building Services Ltd is a trusted extension builder serving customers in Waterlooville and the surrounding area. Contact us to today to get a...
Tao Peskett
TP Developments are here to help customers who need an Extension Builder in Waterlooville. We offer a competitive rate to complete all your extensi...
Experienced extension builder ready to quote for your work. Shepperd Developments is the best extension builder in Waterlooville. No obligation fre...
Experienced extension builder ready to quote for your work. Portsmouth Building Repairs is the best extension builder in Waterlooville. No obligati...
Peter Fenn Property is a trusted extension builder serving customers in Waterlooville and the surrounding area. Contact us to today to get a compet...
JKS Property is an established and experienced local extension builder in Waterlooville. Please contact us for a free, no obligation quote and comp...

Garden offices range from the cheapest of £9,752 (Park Building Services Ltd based in PO9) to the dearest of £11,096 (R&B Property Improvements based in PO9), but these are only estimates.
The best way to compare costs is to get actual quotes.
Get rates and quotes to build a garden office in Waterlooville by posting a job with HaMuch. We'll send it to extension builders in Waterlooville.
"Garden office" - PO9, job posted 01/05/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Waterlooville | £36 | £250 |
| Garden Office near Horndean | £36 | £254 |
| Garden Office near Havant | £35 | £249 |
| Garden Office near Havant & Waterloo | £35 | £248 |
| Garden Office near Portsmouth | £36 | £250 |
| Garden Office near Fareham | £35 | £250 |
| Garden Office near Gosport | £35 | £246 |
| Garden Office near Lee-on-the-Solent | £35 | £249 |
| Garden Office near East Hampshire | £38 | £258 |
| Garden Office near Chichester | £34 | £242 |
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 - £17,589

Two storey extension - £88,133

Build a timber frame extension - £26,089

Build a swimming pool - £81,089

Single storey extension - £56,776

Side return extension - £42,499

Install an RSJ - £2,289

Outbuilding - £10,089

Build a Mansard loft conversion - £52,089

Loft conversion - £34,583

Build a kitchen extension - £42,089

Hip to gable loft conversion - £42,089

Granny annexe - £87,089

Garden office - £10,089

Convert a Garage - £16,089

Garage - £18,589

Build a flat roof extension - £22,089

Build a dormer loft conversion - £42,089

Concrete foundations - £6,339

Convert a bungalow loft - £29,089

Convert a basement - £38,499