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Flat roof extension cost in Hertford

A flat roof extension is a great way to add extra space to your home without splashing out on the costs of a pitched roof extension. Often exempt from planning permission rules, you can build a flat roof extension up to 3 metres in height as long as it's not visible from a road. But how much do they cost in Hertford?

A flat roof extension ranges from the cheapest of £21480 (Taylor'd Building Services based in SG2) to the dearest of £22048 (Steve Rolt Home Improvements Ltd based in SG9), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes. 

Find out how much your flat roof extension will cost in Hertford by posting a job with HaMuch. We'll send it to extension builders in Hertford.

Estimates for flat roof extension near Hertford
  • How much does a flat roof extension cost?
  • Flat roof extension cost per m2
  • Factors affecting the cost of flat roof extensions
  • Advantages and disadvantages of flat roofs
  • Which is cheaper: a flat roof or pitched roof?
  • How long does a flat roof extension take?
  • Do you need planning permission for a flat roof extension?
  • How long does a flat roof last?
  • Can you walk on a flat roof extension?
  • What insulation do I need for a flat roof extension?

  • Estimates for common extension builder jobs in Hertford;



    Rates for other Hertford trades

    Extension Builders in Hertford
    Estimate Flat roof extension cost in Hertford based on hourly/daily rate (excluding VAT or callout charges)
    Business name Flat roof extension cost
    LTM Construction, , SG11 £21968
    Reid James Ltd, Herts, SG11 £22008
    Steve Rolt Home Improvements Ltd, Hertfordshire, SG9 £22048
    WALKERN CONSTRUCTION LIMITED, , SG2 £21944
    Vines Construction Ltd, Walkern Stevenage, SG2 £22016
    Bournes Projects LTD, Ware, Hertfordshire, SG12 £21840
    GB Build, 33 Walnut Tree Close, Aston End, Poplar, Stevenage, Hertfordshire, SG2 £21840
    Taylor'd Building Services, Stevenage, SG2 £21480
    G.J. Brett Carpentry and Joinery Ltd, Hertfordshire, SG1 £22008
    Precision Roofing & Building Maintenance, Stevenage, SG1 £22000
    Red Swan Construction, Hertfordshire, SG2 £21992
    CGL Refurbishments, Herefordshire, sg2 £21984
    Landmark General Builders Ltd, Ware, SG12 £21832
    Chris Osullivan Brickwork, Ware, SG12 £21920
    Wyatt Installations, Hertfordshire, SG1 £22000
    Ross Taylor Homes, Unit 18 Mardleybury Farm, Mardleybury Road, Datchworth, Hertfordshire, SG3 £21832
    Stevenage Roofing Services, Hertfordshire, SG1 £22008
    Conserv-a-tech, 24 Riccat Lane, Stevenage, Hertfordshire, SG1 £21840
    Aspect Construct and Carpentry Ltd, Hertfordshire, SG13 £21952
    SJW Design & Build LTD, 1 Daintrees, Widford, Ware, Hertfordshire, SG12 £21824
    SJW Design & Build LTD, Hertfordshire, SG12 £21928
    Unico Developments, Hertfordshire, SG14 £21952
    Oakridge Construction Limited, , SG14 £21872
    J B R Contracts, 38 Norwood Close, Hertford, Hertfordshir, SG14 £21816
    Chelsfield Solar, Van Hage Garden Centre, Pepper Hill, Gre, SG12 £21832