From £21,984
HARVEY & LITTLE BUILDING SERVICES are here to help customers who need an Extension Builder in CO11. We offer a competitive rate to complete all you...
From £21,704
John O Connell Building Solutions is an established extension buildering business in CO11. We come highly recommended and provide competitive quote...
From £21,552
Qualified stonerestorer 35years experience own public liability insurance.
Worked on numerous listedbuilding through out &nb...
From £21,928
Our company is built on trust and communication with our clients.We are of firm belief that our customers needs are of the utmost importance.
From £22,144
Edwin Lewis Dickinson is a well established company providing all of its customers with the very highest quality of workmanship using only the best...
From £21,608
JDS Building Services is an established extension buildering business in CO11. We come highly recommended and provide competitive quotes for your w...
From £21,840
Having been established for over 10 years, we have accumulated a vast amount of local experience in all aspects of domestic renovation projects.We ...
From £21,976
Greyline Interiors is a family run home refurbishment business with an eye for the latest trends and traditional values.We strive for quality, valu...
From £21,904
SPONG BUILDERS & CONTRACTORS is a trusted extension builder serving customers in CO11 and the surrounding area. Contact us to today to get a compet...
From £21,680
Trusted and professional extension builder in CO11. Experienced in all extension buildering work and keeping within budget and on quote. CHAPEL BUI...

A flat roof extension ranges from the cheapest of £21,552 (T.S Stone Restoration based in CO16) to the dearest of £22,144 (Edwin Lewis Dickinson Ltd based in CO12), 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 CO11 by posting a job with HaMuch. We'll send it to extension builders in CO11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Tendring | £27 | £195 |
| Build A Flat Roof Extension near Harwich | £28 | £207 |
| Build A Flat Roof Extension near Ipswich | £28 | £202 |
| Build A Flat Roof Extension near Colchester | £29 | £200 |
| Build A Flat Roof Extension near Clacton-on-Sea | £26 | £197 |
| Build A Flat Roof Extension near Felixstowe | £27 | £203 |
| Build A Flat Roof Extension near Sudbury | £30 | £208 |
| Build A Flat Roof Extension near Stowmarket | £28 | £201 |
| Build A Flat Roof Extension near Suffolk Coastal | £24 | £190 |
| Build A Flat Roof Extension near Witham | £31 | £208 |
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 - £17,332

Two storey extension - £87,748

Build a timber frame extension - £25,832

Build a swimming pool - £80,832

Single storey extension - £51,640

Side return extension - £39,610

Install an RSJ - £2,032

Outbuilding - £9,832

Build a Mansard loft conversion - £51,832

Loft conversion - £32,175

Build a kitchen extension - £41,832

Hip to gable loft conversion - £41,832

Granny annexe - £86,832

Garden office - £9,832

Convert a Garage - £15,832

Garage - £18,332

Build a flat roof extension - £21,832

Build a dormer loft conversion - £41,832

Concrete foundations - £6,082

Convert a bungalow loft - £28,832

Convert a basement - £35,610