Extend your TS14 with an extension

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 TS14?

Build a flat roof extension cost in TS14 - Sort by rates or availability

P J N Builders

From £21,896

(last active 01/10/26)

Location

Trimdon, TS29

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

D & G Builders

From £21,760

(last active 01/10/26)

Location

Darlington West, DL3

Trusted and professional extension builder in TS14. Experienced in all extension buildering work and keeping within budget and on quote. D & G Buil...

Empire Building Contracts

From £21,744

(last active 01/10/26)

Location

Preston-on-Tees, TS18

Trusted and professional extension builder in TS14. Experienced in all extension buildering work and keeping within budget and on quote. Empire Bui...

KIETH GRAY ROOFING & BUILDING

From £21,528

(last active 16/09/26)

Location

Hartlepool, TS24

Experienced extension builder ready to quote for your work. KIETH GRAY ROOFING & BUILDING is the best extension builder in TS14. No obligation free...

Graham Gamble

From £21,920

(last active 31/08/26)

Location

Kirkbymoorside, YO62

Graham Gamble is an established and experienced local extension builder in TS14. Please contact us for a free, no obligation quote and competitive ...

Under Pressure

From £21,880

(last active 27/08/26)

Location

County Durham, DL2

Relax... you have found a reliable extension builder in TS14. Under Pressure is a friendly and reliable company based in TS14 who consider no job a...

Holvey Home Improvements

From £22,128

(last active 20/08/26)

Location

Skelton-in-Cleveland, TS12

Need an Extension Builder in TS14? Holvey Home Improvements has been helping local clients (20 mile radius) with their extension buildering jobs fo...

Plant to Build Northern

From £21,784

(last active 20/08/26)

Location

Skelton-in-Cleveland, TS12

Plant to Build Northern is an established and experienced local extension builder in TS14. Please contact us for a free, no obligation quote and co...

Marshall & Son Builders

From £21,440

(last active 03/07/26)

Location

Guisborough, TS14

Trusted and professional extension builder in TS14. Experienced in all extension buildering work and keeping within budget and on quote. Marshall &...

CHERRYBURN CONSTRUCTION LTD

From £21,816

(last active 09/06/26)

Location

Seaton Carew, TS25

Need an Extension Builder in TS14? CHERRYBURN CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs...

Flat roof extension cost in TS14

Estimates for build a flat roof extension near TS14

A flat roof extension ranges from the cheapest of £21,440 (Marshall & Son Builders based in TS14) to the dearest of £22,128 (Holvey Home Improvements based in TS12), 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 TS14 by posting a job with HaMuch. We'll send it to extension builders in TS14.


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Build A Flat Roof Extension near Eston£42£241
Build A Flat Roof Extension near Redcar & Cleveland£43£254
Build A Flat Roof Extension near Redcar£42£240
Build A Flat Roof Extension near Middlesbrough£43£236
Build A Flat Roof Extension near Thornaby-on-Tees£42£231
Build A Flat Roof Extension near Ingleby Barwick£41£228
Build A Flat Roof Extension near Billingham£44£242
Build A Flat Roof Extension near Stockton-on-Tees£41£228
Build A Flat Roof Extension near Hartlepool£40£236
Build A Flat Roof Extension near Peterlee£36£230

Estimates for common extension builder jobs in TS14;

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

Underpin a building - £17,290

Two storey extension

Two storey extension - £87,684

Build a timber frame extension

Build a timber frame extension - £25,790

Build a swimming pool

Build a swimming pool - £80,790

Single storey extension

Single storey extension - £50,792

Side return extension

Side return extension - £39,133

Install an RSJ

Install an RSJ - £1,990

Outbuilding

Outbuilding - £9,790

Build a Mansard loft conversion

Build a Mansard loft conversion - £51,790

Loft conversion

Loft conversion - £31,778

Build a kitchen extension

Build a kitchen extension - £41,790

Hip to gable loft conversion

Hip to gable loft conversion - £41,790

Granny annexe

Granny annexe - £86,790

Garden office

Garden office - £9,790

Convert a Garage

Convert a Garage - £15,790

Garage

Garage - £18,290

Build a flat roof extension

Build a flat roof extension - £21,790

Build a dormer loft conversion

Build a dormer loft conversion - £41,790

Concrete foundations

Concrete foundations - £6,040

Convert a bungalow loft

Convert a bungalow loft - £28,790

Convert a basement

Convert a basement - £35,133

More extensions & conversions cost guides...