Power Construction is an established and experienced local extension builder in BT66. Please contact us for a free, no obligation quote and competi...
From £9,448
Trusted and professional extension builder in BT66. Experienced in all extension buildering work and keeping within budget and on quote. The Method...

Garden offices range from the cheapest of £9,360 (Power Construction based in BT65) to the dearest of £9,448 (The Method Group based in BT66), 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 BT66 by posting a job with HaMuch. We'll send it to extension builders in BT66.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Waringstown | £23 | £167 |
| Garden Office near Craigavon | £23 | £181 |
| Garden Office near Maghaberry | £31 | £205 |
| Garden Office near Banbridge | £29 | £205 |
| Garden Office near Hillsborough and Culcavy | £25 | £170 |
| Garden Office near Lisburn | £24 | £164 |
| Garden Office near Crumlin | £26 | £194 |
| Garden Office near Coalisland | £27 | £223 |
| Garden Office near Carryduff | £23 | £158 |
| Garden Office near Ballynahinch | £19 | £189 |
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 - £16,904

Two storey extension - £87,106

Build a timber frame extension - £25,404

Build a swimming pool - £80,404

Single storey extension - £43,080

Side return extension - £34,795

Install an RSJ - £1,604

Outbuilding - £9,404

Build a Mansard loft conversion - £51,404

Loft conversion - £28,163

Build a kitchen extension - £41,404

Hip to gable loft conversion - £41,404

Granny annexe - £86,404

Garden office - £9,404

Convert a Garage - £15,404

Garage - £17,904

Build a flat roof extension - £21,404

Build a dormer loft conversion - £41,404

Concrete foundations - £5,654

Convert a bungalow loft - £28,404

Convert a basement - £30,795