Convert your basement in Welwyn from £28,500

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Cheapest builders to convert your basement in Welwyn

Range from the cheapest Basement conversion £28,500 (Complex Construction based in AL7) to the dearest Basement conversion £37,410 (Red Swan Construction based in SG2).

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

Estimates for basement conversion near Welwyn

Estimates for common extension builder jobs in Welwyn;

JobEstimate
Underpinning a house£17,342
Build a two storey extension£87,763
Build a timber frame extension£25,842
Install a swimming pool£80,842
Cost to build a single storey extension£51,845
Cost to build a side return extension£39,725
Install an RSJ£2,042
Build an outbuilding£9,842
Build a mansard loft conversion£51,842
Cost of a loft conversion£32,271
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
Convert a garage£15,842
Build a new garage£18,342
Build a flat roof extension£21,842
Build a dormer loft conversion£41,842
Lay a concrete foundation£6,092
Convert a bungalow loft£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
Basement conversion cost in Welwyn
Estimate Basement conversion cost in Welwyn based on hourly/daily rate (excluding VAT or callout charges)
Business name Basement conversion cost
Laurdan Building LTD, Welwyn, AL6 £37,230
MA Gower, Welwyn, AL6 £33,000
Interior Installations, Welwyn, AL6 £36,240
Complex Construction, Welwyn Garden City, AL7 £28,500
J&R Property, Hertfordshire, AL7 £37,140
Ross Taylor Homes, Unit 18 Mardleybury Farm, Mardleybury Road, Datchworth, Hertfordshire, SG3 £35,610
PRIMEEXPERT, Hertfordshire, AL7 £37,140
Herts Premier Builders, Hertfordshire, AL7 £37,140
LBH Building & Property Services, Welwyn Garden City, Hertfordshire, AL7 £35,700
STYLE BUILDING SERVICES LTD, Welwyn Garden City, AL7 £36,240
Buildstar, Welwyn garden city, AL7 £33,000
Lemsford Building, Herefordshire, AL8 £37,140
NJG BUILDING SOLUTIONS LTD, Hertfordshire, AL7 £37,140
J J Roofing & Gutter Repairs, Hatfield, AL9 £35,970
J B R Contracts, 38 Norwood Close, Hertford, Hertfordshir, SG14 £35,430
Hertfordshire Design, Hertfordshire, AL10 £36,960
Red Swan Construction, Hertfordshire, SG2 £37,410
Grain Property, Hertfordshire, AL4 £37,050
A S G Developments - Herts LTD , Hatfield, AL10 £33,000
Oakridge Construction Limited, Hertford, SG14 £36,060
GB Build, 33 Walnut Tree Close, Aston End, Poplar, Stevenage, Hertfordshire, SG2 £35,700
VALLEYCREST CONSTRUCTION LTD, Hatfield, AL10 £36,150
Herts Loft Ltd, Hertford, SG14 £36,240
Harris Building Solutions Limited, Stevenage, SG1 £35,790
A1 Home Care Building Maintenance, Hatfield, AL10 £36,150

Get extension builder rates instantly

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