Convert your basement in Portsmouth from £33,000

HaMuch is Excellent
Trustpilot

Cheapest builders to convert your basement in Portsmouth

Range from the cheapest Basement conversion £33,000 (Build Light Group based in PO3) to the dearest Basement conversion £37,500 (SBS Building Services based in PO12).

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

Estimates for basement conversion near Portsmouth

Estimates for common extension builder jobs in Portsmouth;

JobEstimate
Underpinning a house£17,214
Build a two storey extension£87,571
Build a timber frame extension£25,714
Install a swimming pool£80,714
Cost to build a single storey extension£49,285
Cost to build a side return extension£38,285
Install an RSJ£1,914
Build an outbuilding£9,714
Build a mansard loft conversion£51,714
Cost of a loft conversion£31,071
Build a kitchen extension£41,714
Build a hip to gable loft conversion£41,714
Build a granny annexe£86,714
Build a garden office£9,714
Convert a garage£15,714
Build a new garage£18,214
Build a flat roof extension£21,714
Build a dormer loft conversion£41,714
Lay a concrete foundation£5,964
Convert a bungalow loft£28,714
Basement conversion cost£34,285
2. Enter postcode to get estimate
plus materials

to see who is available and get more information


Rates for other Portsmouth 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 Portsmouth
Estimate Basement conversion cost in Portsmouth based on hourly/daily rate (excluding VAT or callout charges)
Business name Basement conversion cost
SODCON, Hampshire, PO2 £35,070
Buildtech southern Ltd, Hampshire, PO2 £35,070
Attic Conversions Hampshire Ltd, Portsmouth, PO2 £34,350
A G Builders, Portsmouth, PO2 £34,260
JM Roofing & Building Services, Portsmouth, PO2 £34,260
Atlas Groundwork & Building Solutions, Portsmouth, PO2 £34,260
Shepperd Developments, Portsmouth, PO2 £34,260
VML Ltd, Portsmouth, PO2 £33,810
DC Roofing & Sons Ltd, Portsmouth, PO3 £34,260
Bribern Property Services, Portsmouth, PO3 £34,350
Build Light Group, Portsmouth, PO3 £33,000
Baffins Building and Roofing Services, Portsmouth, PO3 £33,810
Jack Leng Building Services, Hampshire, PO1 £35,070
QPS Property Solutions, PORTSMOUTH, PO6 £33,000
Westcott Construction Ltd, Unit 30, Portsmouth Enterprise Centre, Quartremaine Road, Portsmouth, Hampshire, PO3 £33,900
Sigma Probuild Ltd, Portsmouth, PO3 £34,260
Pompey Homes Ltd, Portsmouth, PO3 £34,260
JKS Property, Southsea, PO5 £34,260
IndieGo Build, Office B, Friendship House, Elm Grove, Southsea, PO5 £33,810
BUILD PROJECT LIMITED, Southsea, PO5 £34,170
Abacus Building Services, 1 Trevor Road, Southsea, Portsmouth, Hampshire, po4 £33,720
M B Brickwork, Drayton, Portsmouth, PO6 £33,000
SBS Building Services, Gosport, PO12 £37,500
Thermic Homes, Hampshire, PO16 £35,070
H B Builders, Fareham, PO16 £34,350

Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Basement Conversion near Portsmouth£31£216
Basement Conversion near Gosport£30£215
Basement Conversion near Fareham£31£217
Basement Conversion near Lee-on-the-Solent£31£217
Basement Conversion near Havant & Waterloo£30£213
Basement Conversion near Havant£30£213
Basement Conversion near Waterlooville£31£213
Basement Conversion near Horndean£30£213
Basement Conversion near Locks Heath£30£213
Basement Conversion near Hedge End£30£215