Extend your Windermere with an extension

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Flat roof extension cost in Windermere

A flat roof extension is a great way to add extra space to your home without splashing out on the costs of a pitched roof extension. Often exempt from planning permission rules, you can build a flat roof extension up to 3 metres in height as long as it's not visible from a road. But how much do they cost in Windermere?

A flat roof extension ranges from the cheapest of £21,200 (Ian Groves based in CA12) to the dearest of £22,000 (ROJ.house based in LA9), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes. 

Find out how much your flat roof extension will cost in Windermere by posting a job with HaMuch. We'll send it to extension builders in Windermere.

Estimates for flat roof extension near Windermere

Estimates for common extension builder jobs in Windermere;

JobEstimate
Underpinning a house£17,022
Build a two storey extension£87,283
Build a timber frame extension£25,522
Install a swimming pool£80,522
Cost to build a single storey extension£45,444
Cost to build a side return extension£36,125
Install an RSJ£1,722
Build an outbuilding£9,522
Build a mansard loft conversion£51,522
Cost of a loft conversion£29,271
Build a kitchen extension£41,522
Build a hip to gable loft conversion£41,522
Build a granny annexe£86,522
Build a garden office£9,522
Convert a garage£15,522
Build a new garage£18,022
Build a flat roof extension£21,522
Build a dormer loft conversion£41,522
Lay a concrete foundation£5,772
Convert a bungalow loft£28,522
Basement conversion cost£32,125
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Rates for other Windermere trades

Appliance Repair Specialist
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Flat roof extension cost in Windermere
Estimate Flat roof extension cost in Windermere based on hourly/daily rate (excluding VAT or callout charges)
Business name Flat roof extension cost
J R S BUILDING, Windermere, LA23 £21,512
SIMPSON CONSTRUCTION, Kendal, LA8 £21,512
STEPHEN FELLER (BUILDER), Sedgwick, LA9 £21,568
Absolute Build, Kendal, LA9 £21,600
ROJ.house, Cumbria, LA9 £22,000
CHRIS ELLWOOD BUILDING CONTR, Sedgwick, LA9 £21,544
Helmside Building Services, Kendal, LA9 £21,408
Wolfe Design & Build, Cumbria, LA17 £21,536
MARK TAYLOR CONSTRUCTION LTD, Kirkby-in-furness, LA17 £21,448
MIKE CROWE BUILDING & CONSTRUC, Ulverston, LA12 £22,000
ADAM READ TRADITIONAL BUILDING, Millom, LA18 £21,400
A BAINES, Kirkby Lonsdale, LA6 £21,632
Ian Groves, Penrith , CA12 £21,200
J.MACKIE (BUILDER), Millom, LA18 £21,416
B & K BUILDERS LTD, Dalton-in-furness, LA15 £21,448
NEWBY BUILDING & CONSTRUCTION, Shap, CA10 £21,416
M & K BUILDERS KESWICK LIMITED, Keswick, CA12 £21,312
T P MCNULTY CONSTRUCTION LTD, Barrow-in-Furness, LA14 £21,448

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Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Flat Roof Extension near Kendal£24£200
Flat Roof Extension near Morecambe£22£186
Flat Roof Extension near Barrow-in-Furness£21£173
Flat Roof Extension near Lancaster£22£185
Flat Roof Extension near Whitehaven£18£185