Convert your basement in W12 from £35,610

HaMuch is Excellent
Trustpilot

Cheapest builders to convert your basement in W12

Range from the cheapest Basement conversion £35,610 (JNJ Building Services Ltd based in W12) to the dearest Basement conversion £36,870 (The Great Wolf Construction based in W12).

Comparing extension builders estimates for a Basement 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 to convert a basement in W12 by posting a job with HaMuch and we will send it to  extension builders in W12.

Estimates for basement conversion near W12

"Basement conversion"

W4



Estimates for common extension builder jobs in W12;

JobEstimate
Underpinning a house£17,399
Build a two storey extension£87,849
Build a timber frame extension£25,899
Install a swimming pool£80,899
Cost to build a single storey extension£52,984
Cost to build a side return extension£40,366
Install an RSJ£2,099
Build an outbuilding£9,899
Build a mansard loft conversion£51,899
Cost of a loft conversion£32,805
Build a kitchen extension£41,899
Build a hip to gable loft conversion£41,899
Build a granny annexe£86,899
Build a garden office£9,899
Convert a garage£15,899
Build a new garage£18,399
Build a flat roof extension£21,899
Build a dormer loft conversion£41,899
Lay a concrete foundation£6,149
Convert a bungalow loft£28,899
Basement conversion cost£36,366
2. Enter postcode to get estimate
plus materials

to see who is available and get more information


Rates for other W12 trades

Appliance Repair Specialist
Bathroom Fitter
Builder
Carpenter and Joiner
Cleaner
Conservatory Specialist
Door Fitter
Drain Specialist
Driveway Specialist
Electrician
Extension Builder
Fencer
Fire and Security Specialist
Flooring Specialist
Gardener
Handyman
Heating Engineer
Kitchen Fitter
Landscaper
Painter and Decorator
Patio and Path Specialist
Plasterer
Plumber
Removals and Storage
Roofer
Tiler
Window Fitter
Basement conversion cost in W12
Estimate Basement conversion cost in W12 based on hourly/daily rate (excluding VAT or callout charges)
Business name Basement conversion cost
Graham Construction, Shepherd's Bush, W12 £36,240
The Great Wolf Construction, Londonderry, W12 £36,870
Newpark Construction, Shepherd's Bush, W12 £36,240
Add Global, 71 Golhawk Road, London, Greater London, W12 £35,790
Clay Design & Build, Greater London, W12 £36,870
GWS Roofing Specialists, London, Greater London, W12 £36,870
Heaven Sent Construction, Shepherd's Bush, W12 £36,240
Natalia Kennerley, Greater London, W12 £36,870
Hammerhead General Contractors Ltd, London, Greater London, W12 £35,790
Sam Loft, Notting Hill, W11 £36,240
HUGHES BUILDERS, Shepherd's Bush, W12 £36,240
IC&T PROJECTS, Greater London, W12 £36,870
JNJ Building Services Ltd, 151 Askew Road, Hammersmith, London, Lon, W12 £35,610
Baes design ltd, Greater London, W10 £36,870
Jonathan P Spencer Design and Build Limited, London, Greater London, W6 £35,790
HvB Development + Elnaz Namaki Studio, Studio 2, 48-49 Princes Place, London, Greater London, W11 £35,790
One L Building Services, London, Greater London, W11 £35,790
Haris Builders, London, W12 £36,870
MRJ Building Services, Notting Hill, W11 £36,240
Jobbs, Greater London, W11 £36,870
GB Buildings & Renovations, London, London, Greater London, W6 £35,790
Robert & Sons, Surrey, W10 £36,870
Neoliydia Ltd & Echinus Design Studio, Greater London, W12 £36,870
Neoliydia Ltd & Echinus Design Studio, London, Greater London, W12 £35,790
K & S, London, W10 £36,870

Get extension builder rates instantly

Get extension builder rates instantly
Borough in London
Basement Conversion in Shepherd's Bush
Basement Conversion in Hammersmith
Basement Conversion in Notting Hill
Basement Conversion in Kensington
Basement Conversion in West Kensington
Basement Conversion in Kensington
Basement Conversion in Acton
Basement Conversion in Chiswick
Basement Conversion in Maida Vale
Basement Conversion in Earl's Court