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JJSR Construction Ltd
J Wijayamohan
JJSR Construction Ltd is an established and experienced local extension builder in Rayners Lane. Please contact us for a free, no obligation quote ...
Mario Prajar Building Services
Mario Prajar Building Services is an established and experienced local extension builder in Rayners Lane. Please contact us for a free, no obligati...
MAX CONSTRUCTION LTD
Need to find an Extension Builder near you for all your extension buildering work?
MAX CONSTRUCTION LTD provides a local, trusted extension...
RLC Construction
RLC Construction are here to help customers who need an Extension Builder in Rayners Lane. We offer a competitive rate to complete all your extensi...
Vital Builders
Vital Builders are here to help customers who need an Extension Builder in Rayners Lane. We offer a competitive rate to complete all your extension...
C T Edwards
Relax... you have found a reliable extension builder in Rayners Lane. C T Edwards is a friendly and reliable company based in Rayners Lane who cons...
J K GENERAL BUILDING LTD
Need to find an Extension Builder near you for all your extension buildering work?
J K GENERAL BUILDING LTD provides a local, trusted exten...
Building Service and Support Ltd
Relax... you have found a reliable extension builder in Rayners Lane. Building Service and Support Ltd is a friendly and reliable company based in ...
ALG Renovations
ALG Renovations is a well established, trustworthy, reliable and professional operation with over 17 years experience myself in the trade, base...
Chrysalis
Chrysalis are here to help customers who need an Extension Builder in Rayners Lane. We offer a competitive rate to complete all your extension buil...
Cheapest builders for loft conversion in Rayners Lane
Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in Rayners Lane by posting your job to extension builders in Rayners Lane.
"Loft conversion" - HARROW ON THE HILL, job posted 03/07/25
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Estimates for common extension builder jobs in Rayners Lane;
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 - £17,611
Two storey extension - £88,167
Build a timber frame extension - £26,111
Build a swimming pool - £81,111
Single storey extension - £57,224
Side return extension - £42,751
Install an RSJ - £2,311
Outbuilding - £10,111
Build a Mansard loft conversion - £52,111
Loft conversion - £34,793
Build a kitchen extension - £42,111
Hip to gable loft conversion - £42,111
Granny annexe - £87,111
Garden office - £10,111
Convert a Garage - £16,111
Garage - £18,611
Build a flat roof extension - £22,111
Build a dormer loft conversion - £42,111
Concrete foundations - £6,361
Convert a bungalow loft - £29,111
Convert a basement - £38,751