South West regional pricing

How Much Does a Builder Cost in South Gloucestershire?

Updated prices for . South Gloucestershire prices are typically 5% above the national average.

14 services priced
South West region
Updated

Price summary

South Gloucestershire Price Summary

Service Low Average High
Single Storey Extension £31,650 £52,750 £84,400
Double Storey Extension £52,750 £89,675 £147,700
Loft Conversion £26,375 £47,475 £79,125

Prices include labour and materials. VAT may apply. Based on South West regional pricing.

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Full pricing

All Builder Prices in South Gloucestershire

Every price adjusted for South Gloucestershire using a 1.055x cost multiplier, rounded to the nearest £5.

Single Storey Extension

Low

£31,650

Average

£52,750

High

£84,400

8-12 weeks

Double Storey Extension

Low

£52,750

Average

£89,675

High

£147,700

12-20 weeks

Loft Conversion

Low

£26,375

Average

£47,475

High

£79,125

6-10 weeks

Garage Conversion

Low

£8,440

Average

£15,825

High

£26,375

2-4 weeks

Porch Build

Low

£2,640

Average

£4,750

High

£8,440

1-2 weeks

Garden Wall

Low

£845

Average

£1,585

High

£3,165

2-4 days

Knock Through Internal Wall

Low

£1,055

Average

£1,900

High

£3,695

2-4 days

Chimney Breast Removal

Low

£1,265

Average

£2,110

High

£3,695

2-4 days

Underpinning

Low

£5,275

Average

£12,660

High

£26,375

2-4 weeks

Damp Proof Course

Low

£530

Average

£1,265

High

£2,640

1-3 days

New Build Garage

Low

£10,550

Average

£18,990

High

£31,650

3-5 weeks

Outbuilding or Garden Room

Low

£12,660

Average

£26,375

High

£52,750

3-6 weeks

Structural Steelwork (RSJ Installation)

Low

£1,055

Average

£1,900

High

£3,165

1-2 days

Patio or Decking Build

Low

£1,585

Average

£3,695

High

£7,385

3-5 days

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Regional comparison

How South Gloucestershire Compares

Average cost of single storey extension across regions.

South Gloucestershire
+5% £52,750
National Average
baseline £50,000
London
+24% £62,150

Local insights

What Affects Builder Costs in South Gloucestershire?

The South West has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around South Gloucestershire, many properties in areas near Surrey and Kent vary in age and condition. Older properties with original features typically cost more for builder work due to additional preparation and access challenges.

The South West sits above the national average for trade costs, influenced by proximity to London and the generally higher cost of living. Labour rates in South Gloucestershire are typically 5% above the UK average. Despite this, there's a strong supply of qualified builder professionals across the region. Prices can vary 30-50% between different tradespeople for the same job, so getting multiple quotes is essential.

What you pay for builder work in South Gloucestershire depends on the complexity of the job, the materials used, and the condition of your property. Older detached and semi-detached homes often present more challenges that add to the cost. For larger jobs, expect to pay £52,750 to £147,700 for double storey extension in South Gloucestershire. Coastal properties in the South West may face additional considerations that affect pricing.

When getting quotes in South Gloucestershire, aim for at least three from different qualified professionals. Ask each one to visit and assess the work rather than quoting over the phone. A good builder will check the existing setup, identify complications, and provide a detailed cost breakdown. Be wary of quotes that seem significantly cheaper — they may be cutting corners on materials or quality. Always check qualifications, insurance and recent reviews.

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More services

Other Services in South Gloucestershire

Explore costs for other services in the South Gloucestershire area.

40 services — scroll to explore

Plumber in South Gloucestershire Electrician in South Gloucestershire Boiler & Gas Engineer in South Gloucestershire Roofer in South Gloucestershire Locksmith in South Gloucestershire Painter & Decorator in South Gloucestershire Kitchen Fitter in South Gloucestershire Bathroom Fitter in South Gloucestershire Carpenter in South Gloucestershire Landscaper in South Gloucestershire Plasterer in South Gloucestershire Tiler in South Gloucestershire Flooring Specialist in South Gloucestershire Pest Control in South Gloucestershire Tree Surgeon in South Gloucestershire Drain Specialist in South Gloucestershire Damp Proofer in South Gloucestershire Fence Builder in South Gloucestershire Paving & Driveway Specialist in South Gloucestershire Removal Company in South Gloucestershire Skip Hire in South Gloucestershire Scaffolder in South Gloucestershire Chimney Sweep in South Gloucestershire Gutter Specialist in South Gloucestershire Window Cleaner in South Gloucestershire Aerial & Satellite Installer in South Gloucestershire CCTV Installer in South Gloucestershire Alarm Installer in South Gloucestershire Demolition Contractor in South Gloucestershire Car Mechanic in South Gloucestershire Car Body Repair in South Gloucestershire Dentist in South Gloucestershire Cosmetic Dentist in South Gloucestershire Solicitor in South Gloucestershire Family Solicitor in South Gloucestershire Vet in South Gloucestershire Dog Groomer in South Gloucestershire Wedding Venue in South Gloucestershire Wedding Photographer in South Gloucestershire Wedding Caterer in South Gloucestershire All services in South Gloucestershire View city hub

Common questions

Frequently Asked Questions

Common questions about builder costs in South Gloucestershire.

How much does a builder cost in South Gloucestershire in 2026?
Single Storey Extension in South Gloucestershire typically costs between £31,650 and £84,400, with the average being around £52,750. Prices vary depending on the scope of work, materials used, and the specific requirements of your property.
Are builder prices cheaper in South Gloucestershire than London?
South Gloucestershire prices are 5% above the national average, though still £9,400 cheaper than London for single storey extension.
How do I find a good builder in South Gloucestershire?
Get at least three quotes from different tradespeople, check recent reviews, and ask whether the quote includes VAT and everything you need. A detailed written quote that breaks down all costs is a good sign. Always check qualifications, insurance and recent reviews before hiring.
What affects builder prices in South Gloucestershire?
The main factors are the scope and complexity of what you need, the options and products chosen, and local market rates. South Gloucestershire rates are 5% above the national average. Getting multiple quotes is the best way to ensure a fair price.
Do builder prices include materials in South Gloucestershire?
The prices shown on this page include all typical costs. However, when getting real quotes, always confirm what is and isn't included. Some tradespeople break out costs separately, while others give an all-in price. Ask for a detailed breakdown before agreeing to any work.