Build a single storey extension in WD3 from £51,800

HaMuch is Excellent
Trustpilot

Extension builder estimates (based on hourly rates) to build a single storey extension in WD3

Range from the cheapest single storey extension £51,800 (Swan Windows & Son Limited based in WD3) to the dearest single storey extension £95,000 (Design & Build Builders Ltd based in WD18).
Comparing extension builders estimates for fitting a downstairs toilet 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 to build a single storey extension in WD3 by posting a job with HaMuch and we will send it to extension builders in WD3.

Estimates for single storey extension near WD3

Estimates for common extension builder jobs in WD3;

JobEstimate
Underpinning a house£17,516
Build a two storey extension£88,024
Build a timber frame extension£26,016
Install a swimming pool£81,016
Cost to build a single storey extension£55,320
Cost to build a side return extension£41,680
Install an RSJ£2,216
Build an outbuilding£10,016
Build a mansard loft conversion£52,016
Cost of a loft conversion£33,900
Build a kitchen extension£42,016
Build a hip to gable loft conversion£42,016
Build a granny annexe£87,016
Build a garden office£10,016
Convert a garage£16,016
Build a new garage£18,516
Build a flat roof extension£22,016
Build a dormer loft conversion£42,016
Lay a concrete foundation£6,266
Convert a bungalow loft£29,016
Basement conversion cost£37,680
2. Enter postcode to get estimate
plus materials

to see who is available and get more information


Rates for other WD3 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
Single storey extension cost in WD3
Estimate Single storey extension cost in WD3 based on hourly/daily rate (excluding VAT or callout charges)
Business name Single storey extension cost
Carlos Gurrea, Hertfordshire, WD3 £54,360
Swan Windows & Son Limited, 88a High St, Rickmansworth, Hertfordshir, WD3 £51,800
Timeless Interiors, Hertfordshire, WD3 £54,360
Cube Design, Herefordshire, WD3 £54,360
BALECOURT BUILDERS LIMITED, Rickmansworth, WD3 £52,920
D ROSE BUILDING SERVICES, Rickmansworth, WD3 £52,920
CLPM Limited, The Pavilion, Micklefield Hall, Sarratt Road, Sarratt, Rickmansworth, Hertfordshire, WD3 £52,120
MAINCORE BUILDING SERVICES LTD, Rickmansworth, WD3 £52,760
KATELL PROPERTY MAINTENANCE, Rickmansworth, WD3 £63,000
Saltbox Design and Build, Hertfordshire, WD3 £54,520
A&T Building, Watford, WD18 £52,760
Asset Lofts, 30 High Street, Harefield, Middlesex, UB9 £51,960
Hamilton Refurbishments, Great House Farm, Chenies, Buckinghamshire, WD3 £52,120
Design & Build Builders Ltd, Watford, WD18 £95,000
Frame Brickwork, West Watford, WD18 £52,920
Tonybuild, Watford, WD17 £52,920
Project Squared Construction Ltd, Hertfordshire, ha6 £54,360
S2M VENTURES LLP, West Lothian, HA6 £54,360
AV Home Improvements, Herts, WD19 £54,360
Coste + Beno Ltd, Greater London, HA6 £54,360
Coste + Beno Ltd, 20 Leaf Close,, Northwood,, London, Greater London, HA6 £52,280
Architectural Brickwork Services, Hertfordshire, WD19 £54,360
Daniel London, London, Greater London, HA6 £52,440
Velonia Interiors Ltd, Buckinghamshire, SL9 £52,760
1st Choice Builders UK, West Watford, WD18 £52,920

Get extension builder rates instantly

Get extension builder rates instantly
Borough in London
Single Storey Extension in Rickmansworth
Single Storey Extension in West Watford
Single Storey Extension in Watford
Single Storey Extension in Watford
Single Storey Extension in Northwood
Single Storey Extension in North Watford
Single Storey Extension in Chalfont St Giles
Single Storey Extension in Oxhey
Single Storey Extension in Denham
Single Storey Extension in Kings Langley