Build a single storey extension in Welwyn from £39,000

Range from the cheapest single storey extension £39,000 (Complex Construction based in AL7) to the dearest single storey extension £54,840 (Red Swan Construction based in SG2).
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 Welwyn by posting a job with HaMuch and we will send it to extension builders in Welwyn.

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

Range from the cheapest single storey extension £39,000 (Complex Construction based in AL7) to the dearest single storey extension £54,840 (Red Swan Construction based in SG2).
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 Welwyn by posting a job with HaMuch and we will send it to extension builders in Welwyn.

Estimates for single storey extension near Welwyn

"Single storey extension" - WELWYN



Estimates for common extension builder jobs in Welwyn;

JobEstimate
Cost to underpin a house£17,342
Build a two storey extension£87,763
Cost to build a timber frame extension£25,842
Cost to build a swimming pool£80,842
Cost to build a single storey extension£51,845
Cost to build a side return extension£39,725
Cost to Install an RSJ£2,042
Build an outbuilding£9,842
Cost to build a mansard loft conversion£51,842
Cost of a loft conversion£32,271
Cost to build a kitchen extension£41,842
Build a hip to gable loft conversion£41,842
Build a granny annexe£86,842
Build a garden office£9,842
Cost of a garage conversion£15,842
Build a new garage£18,342
Cost to build a flat roof extension£21,842
Cost to build a dormer loft conversion£41,842
Lay a concrete foundation£6,092
Cost of a bungalow loft conversion£28,842
Basement conversion cost£35,725
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Rates for other Welwyn 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 Welwyn
Estimate Single storey extension cost in Welwyn based on hourly/daily rate (excluding VAT or callout charges)
Business name Single storey extension cost
Laurdan Building LTD, Welwyn, AL6 £54,520
MA Gower, Welwyn, AL6 £47,000
Interior Installations, Welwyn, AL6 £52,760
Complex Construction, Welwyn Garden City, AL7 £39,000
J&R Property, Hertfordshire, AL7 £54,360
Ross Taylor Homes, Unit 18 Mardleybury Farm, Mardleybury Road, Datchworth, Hertfordshire, SG3 £51,640
PRIMEEXPERT, Hertfordshire, AL7 £54,360
Herts Premier Builders, Hertfordshire, AL7 £54,360
LBH Building & Property Services, Welwyn Garden City, Hertfordshire, AL7 £51,800
STYLE BUILDING SERVICES LTD, Welwyn Garden City, AL7 £52,760
Buildstar, Welwyn garden city, AL7 £47,000
Lemsford Building, Herefordshire, AL8 £54,360
NJG BUILDING SOLUTIONS LTD, Hertfordshire, AL7 £54,360
J J Roofing & Gutter Repairs, Hatfield, AL9 £52,280
J B R Contracts, 38 Norwood Close, Hertford, Hertfordshir, SG14 £51,320
Hertfordshire Design, Hertfordshire, AL10 £54,040
Red Swan Construction, Hertfordshire, SG2 £54,840
Grain Property, Hertfordshire, AL4 £54,200
A S G Developments - Herts LTD , Hatfield, AL10 £47,000
Oakridge Construction Limited, Hertford, SG14 £52,440
GB Build, 33 Walnut Tree Close, Aston End, Poplar, Stevenage, Hertfordshire, SG2 £51,800
VALLEYCREST CONSTRUCTION LTD, Hatfield, AL10 £52,600
Herts Loft Ltd, Hertford, SG14 £52,760
Harris Building Solutions Limited, Stevenage, SG1 £51,960
A1 Home Care Building Maintenance, Hatfield, AL10 £52,600

Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Single Storey Extension near Welwyn Garden City£36£229
Single Storey Extension near Hertford£39£247
Single Storey Extension near Hatfield£53£244
Single Storey Extension near Stevenage£37£239
Single Storey Extension near Harpenden£70£264
Single Storey Extension near Hitchin£37£238
Single Storey Extension near East Hertfordshire£37£241
Single Storey Extension near Ware£40£252
Single Storey Extension near St Albans£52£246
Single Storey Extension near North Hertfordshire£37£239