From £9,256
Building & Flat Roofing Contractors is a trusted extension builder serving customers in Blaenau Ffestiniog and the surrounding area. Contact us to ...
From £9,720
Need an Extension Builder in Blaenau Ffestiniog? Hughes Construction has been helping local clients (20 mile radius) with their extension builderin...
From £9,728
Need to find an Extension Builder near you for all your extension buildering work?
W F CLAYTON & CO LTD provides a local, trusted extension...

Garden offices range from the cheapest of £9,256 (Building & Flat Roofing Contractors based in LL54) to the dearest of £9,728 (W F CLAYTON & CO LTD based in LL57), 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 Blaenau Ffestiniog by posting a job with HaMuch. We'll send it to extension builders in Blaenau Ffestiniog.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Conwy | £28 | £211 |
| Garden Office near Conway | £28 | £211 |
| Garden Office near Colwyn Bay | £28 | £211 |
| Garden Office near Llandudno | £28 | £211 |
| Garden Office near Rhyl | £28 | £209 |
| Garden Office near Prestatyn | £29 | £213 |
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 - £17,068

Two storey extension - £87,352

Build a timber frame extension - £25,568

Build a swimming pool - £80,568

Single storey extension - £46,360

Side return extension - £36,640

Install an RSJ - £1,768

Outbuilding - £9,568

Build a Mansard loft conversion - £51,568

Loft conversion - £29,700

Build a kitchen extension - £41,568

Hip to gable loft conversion - £41,568

Granny annexe - £86,568

Garden office - £9,568

Convert a Garage - £15,568

Garage - £18,068

Build a flat roof extension - £21,568

Build a dormer loft conversion - £41,568

Concrete foundations - £5,818

Convert a bungalow loft - £28,568

Convert a basement - £32,640