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Northallerton, DL6
S & K Windows are here to help customers who need an Extension Builder in Northallerton. We offer a competitive rate to complete all your extension...
From £9,872
Darren Collin
Northallerton, DL7
Hi I'm darren
I'm a fully qualified time served joiner I have been doing it for 30 years and have been self employed for 12 years ...

Garden offices range from the cheapest of £9,720 (S & K Windows based in DL6) to the dearest of £9,872 (Darren Collin Joinery based in DL7), 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 Northallerton by posting a job with HaMuch. We'll send it to extension builders in Northallerton.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Ingleby Barwick | £41 | £228 |
| Garden Office near Thornaby-on-Tees | £42 | £231 |
| Garden Office near Darlington | £60 | £222 |
| Garden Office near Stockton-on-Tees | £41 | £228 |
| Garden Office near Middlesbrough | £43 | £236 |
| Garden Office near Eston | £42 | £241 |
| Garden Office near Billingham | £44 | £242 |
| Garden Office near Newton Aycliffe | £38 | £225 |
| Garden Office near Redcar & Cleveland | £43 | £254 |
| Garden Office near Redcar | £42 | £240 |
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 - £17,296

Two storey extension - £87,694

Build a timber frame extension - £25,796

Build a swimming pool - £80,796

Single storey extension - £50,920

Side return extension - £39,205

Install an RSJ - £1,996

Outbuilding - £9,796

Build a Mansard loft conversion - £51,796

Loft conversion - £31,838

Build a kitchen extension - £41,796

Hip to gable loft conversion - £41,796

Granny annexe - £86,796

Garden office - £9,796

Convert a Garage - £15,796

Garage - £18,296

Build a flat roof extension - £21,796

Build a dormer loft conversion - £41,796

Concrete foundations - £6,046

Convert a bungalow loft - £28,796

Convert a basement - £35,205