From £22,184
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in Ware. No obligation free quotes and ...
From £22,560
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
From £22,392
Need an Extension Builder in Ware? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...
From £22,312
skilled worker who specializes in completing a wide range of building and renovation projects
From £21,968
B J CULLEN BUILDERS are here to help customers who need an Extension Builder in Ware. We offer a competitive rate to complete all your extension bu...
From £22,032
Relax... you have found a reliable extension builder in Ware. Major Building Contractors Ltd is a friendly and reliable company based in Ware who c...
From £22,184
Need to find an Extension Builder near you for all your extension buildering work?
Sz Builders provides a local, trusted extension builderi...
From £22,712
Experienced extension builder ready to quote for your work. Render is the best extension builder in Ware. No obligation free quotes and many happy ...
From £21,896
Experienced extension builder ready to quote for your work. Jhon is the best extension builder in Ware. No obligation free quotes and many happy cu...
From £21,880
Member since August 2025
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

A flat roof extension ranges from the cheapest of £21,880 (Can design and Construction based in Ig11) to the dearest of £22,712 (Render based in IG1), 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 Ware by posting a job with HaMuch. We'll send it to extension builders in Ware.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Ware | £47 | £296 |
| Build A Flat Roof Extension near Hertford | £46 | £289 |
| Build A Flat Roof Extension near Hoddesdon | £46 | £296 |
| Build A Flat Roof Extension near East Hertfordshire | £44 | £289 |
| Build A Flat Roof Extension near Welwyn Garden City | £42 | £268 |
| Build A Flat Roof Extension near Cheshunt | £48 | £285 |
| Build A Flat Roof Extension near Harlow | £43 | £288 |
| Build A Flat Roof Extension near Hatfield | £64 | £283 |
| Build A Flat Roof Extension near Stevenage | £44 | £282 |
| Build A Flat Roof Extension near Potters Bar | £43 | £273 |
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 - £17,712

Two storey extension - £88,318

Build a timber frame extension - £26,212

Build a swimming pool - £81,212

Single storey extension - £59,240

Side return extension - £43,885

Install an RSJ - £2,412

Outbuilding - £10,212

Build a Mansard loft conversion - £52,212

Loft conversion - £35,738

Build a kitchen extension - £42,212

Hip to gable loft conversion - £42,212

Granny annexe - £87,212

Garden office - £10,212

Convert a Garage - £16,212

Garage - £18,712

Build a flat roof extension - £22,212

Build a dormer loft conversion - £42,212

Concrete foundations - £6,462

Convert a bungalow loft - £29,212

Convert a basement - £39,885