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

HaMuch is Excellent
Trustpilot

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

Range from the cheapest single storey extension £39,000 (Complex Construction based in AL7) to the dearest single storey extension £54,520 (Laurdan Building LTD based in AL6).
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 Garden City by posting a job with HaMuch and we will send it to extension builders in Welwyn Garden City.

Estimates for single storey extension near Welwyn Garden City

"Single storey extension"

WELWYN



Estimates for common extension builder jobs in Welwyn Garden City;

JobEstimate
Underpinning a house£17,341
Build a two storey extension£87,761
Build a timber frame extension£25,841
Install a swimming pool£80,841
Cost to build a single storey extension£51,819
Cost to build a side return extension£39,711
Install an RSJ£2,041
Build an outbuilding£9,841
Build a mansard loft conversion£51,841
Cost of a loft conversion£32,259
Build a kitchen extension£41,841
Build a hip to gable loft conversion£41,841
Build a granny annexe£86,841
Build a garden office£9,841
Convert a garage£15,841
Build a new garage£18,341
Build a flat roof extension£21,841
Build a dormer loft conversion£41,841
Lay a concrete foundation£6,091
Convert a bungalow loft£28,841
Basement conversion cost£35,711
2. Enter postcode to get estimate
plus materials

to see who is available and get more information


Rates for other Welwyn Garden City 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 Garden City
Estimate Single storey extension cost in Welwyn Garden City based on hourly/daily rate (excluding VAT or callout charges)
Business name Single storey extension cost
STYLE BUILDING SERVICES LTD, Welwyn Garden City, AL7 £52,760
Buildstar, Welwyn garden city, AL7 £47,000
PRIMEEXPERT, Hertfordshire, AL7 £54,360
LBH Building & Property Services, Welwyn Garden City, Hertfordshire, AL7 £51,800
Herts Premier Builders, Hertfordshire, AL7 £54,360
J&R Property, Hertfordshire, AL7 £54,360
Complex Construction, Welwyn Garden City, AL7 £39,000
NJG BUILDING SOLUTIONS LTD, Hertfordshire, AL7 £54,360
Lemsford Building, Herefordshire, AL8 £54,360
J J Roofing & Gutter Repairs, Hatfield, AL9 £52,280
Hertfordshire Design, Hertfordshire, AL10 £54,040
A S G Developments - Herts LTD , Hatfield, AL10 £47,000
Laurdan Building LTD, Welwyn, AL6 £54,520
J B R Contracts, 38 Norwood Close, Hertford, Hertfordshir, SG14 £51,320
Interior Installations, Welwyn, AL6 £52,760
VALLEYCREST CONSTRUCTION LTD, Hatfield, AL10 £52,600
MA Gower, Welwyn, AL6 £47,000
Buildline, Hatfield, AL10 £52,440
A1 Home Care Building Maintenance, Hatfield, AL10 £52,600
Ross Taylor Homes, Unit 18 Mardleybury Farm, Mardleybury Road, Datchworth, Hertfordshire, SG3 £51,640
Mick O Farrell Builders, Hatfield, AL10 £51,640
Oakridge Construction Limited, Hertford, SG14 £52,440
Buyerz Trading, Hertfordshire, AL10 £54,200
Grain Property, Hertfordshire, AL4 £54,200
G FORCE BUILDERS, Brookmans Park, AL9 £52,440

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 Hatfield£53£244
Single Storey Extension near Hertford£39£247
Single Storey Extension near Potters Bar£38£240
Single Storey Extension near Harpenden£70£264
Single Storey Extension near St Albans£52£246
Single Storey Extension near Ware£40£252
Single Storey Extension near Cheshunt£41£245
Single Storey Extension near Stevenage£37£239
Single Storey Extension near Hoddesdon£40£252