We send your job to ALL Marazion extension builders
Available extension builders in Marazion reply
Select your affordable Marazion extension builder
Phil Searle
Searle Construction are here to help customers who need an Extension Builder in Marazion. We offer a competitive rate to complete all your extensi...
From £21,440
We are a family run Construction Company based in Penzance. We employ over 10 skilled local trade professionals with 2 apprentices as well. Residen...
From £21,472
Trusted and professional extension builder in Marazion. Experienced in all extension buildering work and keeping within budget and on quote. Marks ...

A flat roof extension ranges from the cheapest of £21,440 (TGP Construction based in TR18) to the dearest of £21,664 (Searle Construction based in TR19), 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 Marazion by posting a job with HaMuch. We'll send it to extension builders in Marazion.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near St Ives, Cornwall | £27 | £188 |
| Build A Flat Roof Extension near Camborne | £28 | £196 |
| Build A Flat Roof Extension near Falmouth | £33 | £220 |
| Build A Flat Roof Extension near Truro | £31 | £206 |
| Build A Flat Roof Extension near Newquay | £32 | £230 |
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 - £17,025

Two storey extension - £87,288

Build a timber frame extension - £25,525

Build a swimming pool - £80,525

Single storey extension - £45,507

Side return extension - £36,160

Install an RSJ - £1,725

Outbuilding - £9,525

Build a Mansard loft conversion - £51,525

Loft conversion - £29,300

Build a kitchen extension - £41,525

Hip to gable loft conversion - £41,525

Granny annexe - £86,525

Garden office - £9,525

Convert a Garage - £15,525

Garage - £18,025

Build a flat roof extension - £21,525

Build a dormer loft conversion - £41,525

Concrete foundations - £5,775

Convert a bungalow loft - £28,525

Convert a basement - £32,160