Get quotes to convert your basement in SL9 from £35700

HaMuch is Excellent

Cheapest builders to convert your basement in SL9

Range from the cheapest Basement conversion £35700 (Swan Windows & Son Limited based in WD3) to the dearest Basement conversion £42000 (KATELL PROPERTY MAINTENANCE based in WD3).

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 SL9 by posting a job with HaMuch and we will send it to  extension builders in SL9.

Estimates for basement conversion near SL9
  • Basement conversion cost: price guide for 2023
  • Benefits of a basement conversion
  • Will I need planning permission?
  • Supply costs of a basement conversion
  • Waterproofing options for your basement

  • Estimates for common extension builder jobs in SL9;



    Rates for other SL9 trades