Cost to Build a Single Storey Extension in WD18

Build a single storey extension in WD18 from £51,800

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 WD18 by posting a job with HaMuch and we will send it to extension builders in WD18.

HaMuch is Excellent

Extension builder estimates (based on hourly rates) to build a single storey extension in WD18
Single storey extension cost in WD18
Estimates for common extension builder jobs in WD18;

Extension builder estimates (based on hourly rates) to build a single storey extension in WD18

Estimates for single storey extension near WD18

"Single storey extension" - WATFORD

Estimates for common extension builder jobs in WD18;

Rates for other WD18 trades

Single storey extension cost in WD18

Estimate Single storey extension cost in WD18 based on hourly/daily rate (excluding VAT or callout charges)
Business name	Single storey extension cost
Frame Brickwork, West Watford, WD18	£52,920
Design & Build Builders Ltd, Watford, WD18	£95,000
A&T Building, Watford, WD18	£52,760
Architectural Brickwork Services, Hertfordshire, WD19	£54,360
1st Choice Builders UK, West Watford, WD18	£52,920
Primrose Projects, WATFORD, Hertfordshire, WD17	£52,280
AV Home Improvements, Herts, WD19	£54,360
MAINCORE BUILDING SERVICES LTD, Rickmansworth, WD3	£52,760
Tonybuild, Watford, WD17	£52,920
D ROSE BUILDING SERVICES, Rickmansworth, WD3	£52,920
T N Roofing, Bushey Hall Drive, B, WD23	£52,760
S2M VENTURES LLP, West Lothian, HA6	£54,360
Progressive Design London, Watford, Hertfordshire, WD24	£52,120
Conversion Property and Electrical Services, Hertfordshire, WD24	£54,360
C S C BUILDINGS LTD, Oxhey, WD19	£52,760
Cannon Build Solutions, Hartsbourne House, Watford, Hertfordshire, WD19	£52,440
Project Squared Construction Ltd, Hertfordshire, ha6	£54,360
Ideal Place Construction Ltd, Watford, WD19	£55,000
Sharp Building Ltd, Watford, WD19	£52,920
Timeless Interiors, Hertfordshire, WD3	£54,360
Cube Design, Herefordshire, WD3	£54,360
Crown Building, Unit: 324-B, Wenta Centre, Colne Way, Watford, Hertfordshire, WD24	£52,280
Daniel London, London, Greater London, HA6	£52,440
Swan Windows & Son Limited, 88a High St, Rickmansworth, Hertfordshir, WD3	£51,800
Murati Building LTD, Garston, WD25	£53,080

Get extension builder rates instantly

Get extension builder rates instantly
Borough in London
Single Storey Extension in West Watford
Single Storey Extension in Watford
Single Storey Extension in Watford
Single Storey Extension in Oxhey
Single Storey Extension in North Watford
Single Storey Extension in Potters Bar
Single Storey Extension in Bushey Heath
Single Storey Extension in Northwood
Single Storey Extension in Garston
Single Storey Extension in Rickmansworth

	Job	Estimate
	Cost to underpin a house	£17,495
	Build a two storey extension	£87,993
	Cost to build a timber frame extension	£25,995
	Cost to build a swimming pool	£80,995
	Cost to build a single storey extension	£54,904
	Cost to build a side return extension	£41,446
	Cost to Install an RSJ	£2,195
	Build an outbuilding	£9,995
	Cost to build a mansard loft conversion	£51,995
	Cost of a loft conversion	£33,705
	Cost to build a kitchen extension	£41,995
	Build a hip to gable loft conversion	£41,995
	Build a granny annexe	£86,995
	Build a garden office	£9,995
	Cost of a garage conversion	£15,995
	Build a new garage	£18,495
	Cost to build a flat roof extension	£21,995
	Cost to build a dormer loft conversion	£41,995
	Lay a concrete foundation	£6,245
	Cost of a bungalow loft conversion	£28,995
	Basement conversion cost	£37,446