Convert your basement in Knebworth from £28,500

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Cheapest builders to convert your basement in Knebworth

Range from the cheapest Basement conversion £28,500 (Complex Construction based in AL7) to the dearest Basement conversion £37,590 (Stevenage Roofing Services based in SG1).

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

Estimates for basement conversion near Knebworth

Estimates for common extension builder jobs in Knebworth;

JobEstimate
Underpinning a house£17,368
Build a two storey extension£87,802
Build a timber frame extension£25,868
Install a swimming pool£80,868
Cost to build a single storey extension£52,357
Cost to build a side return extension£40,013
Install an RSJ£2,068
Build an outbuilding£9,868
Build a mansard loft conversion£51,868
Cost of a loft conversion£32,511
Build a kitchen extension£41,868
Build a hip to gable loft conversion£41,868
Build a granny annexe£86,868
Build a garden office£9,868
Convert a garage£15,868
Build a new garage£18,368
Build a flat roof extension£21,868
Build a dormer loft conversion£41,868
Lay a concrete foundation£6,118
Convert a bungalow loft£28,868
Basement conversion cost£36,013
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Rates for other Knebworth 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 Knebworth
Estimate Basement conversion cost in Knebworth based on hourly/daily rate (excluding VAT or callout charges)
Business name Basement conversion cost
Ross Taylor Homes, Unit 18 Mardleybury Farm, Mardleybury Road, Datchworth, Hertfordshire, SG3 £35,610
Interior Installations, Welwyn, AL6 £36,240
MA Gower, Welwyn, AL6 £33,000
Laurdan Building LTD, Welwyn, AL6 £37,230
Red Swan Construction, Hertfordshire, SG2 £37,410
GB Build, 33 Walnut Tree Close, Aston End, Poplar, Stevenage, Hertfordshire, SG2 £35,700
Complex Construction, Welwyn Garden City, AL7 £28,500
Wyatt Installations, Hertfordshire, SG1 £37,500
Harris Building Solutions Limited, Stevenage, SG1 £35,790
J&R Property, Hertfordshire, AL7 £37,140
G B BUILDSTORE LTD, Stevenage, SG1 £36,600
Stevenage Roofing Services, Hertfordshire, SG1 £37,590
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
Precision Roofing & Building Maintenance, Stevenage, SG1 £37,500
Buildstar, Welwyn garden city, AL7 £33,000
WALKERN CONSTRUCTION LIMITED, Ardeley, SG2 £36,870
Conserv-a-tech, 24 Riccat Lane, Stevenage, Hertfordshire, SG1 £35,700
Lemsford Building, Herefordshire, AL8 £37,140
TPJ Building Ltd, Ware, SG12 £36,330
Country Home Concepts, Hertfordshire, SG4 £37,590
J B R Contracts, 38 Norwood Close, Hertford, Hertfordshir, SG14 £35,430
Up and Out Builds Ltd, Ware, SG12 £36,240

Get extension builder rates instantly

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