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Available extension builders in Calstock reply
Select your affordable Calstock extension builder
From £52,128
Stephen Trevillion
Member since October 2026
Minor and major building works
Need an Extension Builder in Calstock? A1 CONSTRUCTION & MAINTENCE has been helping local clients (20 mile radius) with their extension buildering...
Relax... you have found a reliable extension builder in Calstock. MJR Construction SW Ltd is a friendly and reliable company based in Calstock who ...
Need to find an Extension Builder near you for all your extension buildering work?
STEVENS BUILDING & MAINT LTD provides a local, trusted e...
From £51,632
MICHAEL P PHILP is an established and experienced local extension builder in Calstock. Please contact us for a free, no obligation quote and compet...
From £52,152
360 Construction are here to help customers who need an Extension Builder in Calstock. We offer a competitive rate to complete all your extension b...
From £51,784
TJ FRIEND CONSTRUCTION are here to help customers who need an Extension Builder in Calstock. We offer a competitive rate to complete all your exten...
From £51,944
Trusted and professional extension builder in Calstock. Experienced in all extension buildering work and keeping within budget and on quote. CONSTR...
From £51,848
A Rated Builders is an established and experienced local extension builder in Calstock. Please contact us for a free, no obligation quote and compe...

Mansard loft conversions range from the cheapest installation of £51,632 (MICHAEL P PHILP based in PL12) to the dearest of around £52,288 (Brian C Credicott based in PL19).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in Calstock by posting a job with HaMuch and we'll send it to extension builders in Calstock.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Plymouth | £30 | £230 |
| Build A Mansard Loft Conversion near Teignbridge | £27 | £260 |
| Build A Mansard Loft Conversion near Newton Abbot | £27 | £236 |
| Build A Mansard Loft Conversion near St Austell | £38 | £245 |
| Build A Mansard Loft Conversion near Paignton | £27 | £222 |
| Build A Mansard Loft Conversion near Torbay | £27 | £223 |
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 - £17,422

Two storey extension - £87,884

Build a timber frame extension - £25,922

Build a swimming pool - £80,922

Single storey extension - £53,448

Side return extension - £40,627

Install an RSJ - £2,122

Outbuilding - £9,922

Build a Mansard loft conversion - £51,922

Loft conversion - £33,023

Build a kitchen extension - £41,922

Hip to gable loft conversion - £41,922

Granny annexe - £86,922

Garden office - £9,922

Convert a Garage - £15,922

Garage - £18,422

Build a flat roof extension - £21,922

Build a dormer loft conversion - £41,922

Concrete foundations - £6,172

Convert a bungalow loft - £28,922

Convert a basement - £36,627