Range from the cheapest single storey extension £39,000 (Ian Groves based in CA12) to the dearest single storey extension £55,000 (ROJ.house based in LA9).
Comparing extension builders estimates for fitting a downstairs toilet gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to build a single storey extension in Ambleside by posting a job with HaMuch and we will send it to extension builders in Ambleside.

"18sqm Single storey extension with flat roof , out side skin in blockwork and k-rendered "
WINDERMERE
| Business name | Single storey extension cost |
|---|---|
| J R S BUILDING, Windermere, LA23 | £45,240 |
| SIMPSON CONSTRUCTION, Kendal, LA8 | £45,240 |
| STEPHEN FELLER (BUILDER), Sedgwick, LA9 | £46,360 |
| ROJ.house, Cumbria, LA9 | £55,000 |
| Absolute Build, Kendal, LA9 | £47,000 |
| CHRIS ELLWOOD BUILDING CONTR, Sedgwick, LA9 | £45,880 |
| Wolfe Design & Build, Cumbria, LA17 | £45,720 |
| Helmside Building Services, Kendal, LA9 | £43,160 |
| Ian Groves, Penrith , CA12 | £39,000 |
| M & K BUILDERS KESWICK LIMITED, Keswick, CA12 | £41,240 |
| MARK TAYLOR CONSTRUCTION LTD, Kirkby-in-furness, LA17 | £43,960 |
| ADAM READ TRADITIONAL BUILDING, Millom, LA18 | £43,000 |
| MIKE CROWE BUILDING & CONSTRUC, Ulverston, LA12 | £55,000 |
| NEWBY BUILDING & CONSTRUCTION, Shap, CA10 | £43,320 |
| J.MACKIE (BUILDER), Millom, LA18 | £43,320 |
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Kendal | £24 | £200 |
| Single Storey Extension near Barrow-in-Furness | £21 | £173 |
| Single Storey Extension near Morecambe | £22 | £186 |
| Single Storey Extension near Whitehaven | £18 | £185 |
| Single Storey Extension near Lancaster | £22 | £185 |