Renovation prices in Bristol, 2026
Typical costs from the quotes we wrote in 2025 and 2026. They include VAT and assume a typical Bristol terrace or semi. Your own quote is fixed and itemised after a free survey.
£22,000 to £62,000
£22,000 to £38,000 when the layout stays. £38,000 to £62,000 when walls move. Includes VAT, excludes appliances.
5 to 9 weeks on site
£14,000 to £26,000
A family bathroom with a new suite, tiling, underfloor heating and an extractor fan. En suites start at £11,000. Includes VAT.
3 to 4 weeks on site
£44,000 to £82,000
£44,000 to £58,000 for a rooflight conversion. £58,000 to £82,000 with a rear dormer. Includes VAT, drawings and fire-safety work.
8 to 12 weeks on site
£3,100 to £3,900 per m²
A typical 20 m² side-return kitchen extension costs £85,000 to £130,000 including the kitchen. Includes VAT.
14 to 20 weeks on site
From £1,400 per m²
A three-bedroom semi typically costs £140,000 to £260,000, depending on how much of the structure changes. Includes VAT.
5 to 9 months on site
Priced per job
Sash window overhaul £950 to £1,600 per window. Lime plastering from £85 per m². Our smallest job is £15,000. Includes VAT.
Depends on the house
Glazing
Steel-framed doors and a frameless glass roof can cost twice as much as aluminium sliders and rooflights. On a 20 m² extension that’s £12,000 to £18,000 of difference.
The ground
Clay soil near trees, common in Westbury-on-Trym and Henleaze, can need deeper foundations, which add £4,000 to £9,000.
What’s behind the walls
Old drains in the wrong place, rotten joists, and asbestos in houses built before 2000. Every quote has a 5 percent contingency line. On our 2025 jobs, an average of 3.1 percent of it was used.
Finishes
The same kitchen layout can cost £15,000 or £40,000 in units and worktops. We price the building work separately from fittings, so you can see where the money goes.
Materials deposit
10 to 15%
Only for materials we order for you, such as steel, glazing and kitchen units.
Fortnightly invoices
About 85%
Every two weeks, for the work done in the previous two weeks.
Retention
2.5%
Held back until the snagging visit, three months after handover.
Included in every quote
Labour and materials for the agreed scope
Scaffolding, skips and waste disposal
Building Control fees
Electrical, gas and building regulations certificates
Protection of floors and furniture, and a clean every day
A final clean before handover
Not included unless you ask
Kitchen appliances
Furniture, curtains and blinds
Planning application fees
Party wall surveyor fees, if a neighbour appoints one
Landscaping beyond making good the garden
Rent or storage if you move out