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UK cost-planning topic

Side Return Extension Cost

Build a useful allowance by defining the exact scope, specification, access and finishing requirements. A local inspection and itemised written quote are the safest way to confirm the price for your property.

Before comparing prices

Define the variables behind the quote

Ground conditions and foundations

Steelwork and structural openings

Access, scaffolding and waste

Glazing, services and room specification

Quote checklist

Ask every tradesperson to price the same brief

  • Labour and named materials
  • Preparation and protection
  • Access equipment and waste
  • VAT and provisional allowances
  • Testing or certification
  • Making good and final finish
  • Programme and payment stages
  • Warranty and snagging

More extensions job options