South West regional pricing

How Much Does a Builder Cost in Bristol?

Updated prices for . Bristol prices are typically 7% above the national average.

14 services priced
South West region
Updated

Price summary

Bristol Price Summary

Service Low Average High
Single Storey Extension £32,250 £53,750 £86,000
Double Storey Extension £53,750 £91,375 £150,500
Loft Conversion £26,875 £48,375 £80,625

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

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Full pricing

All Builder Prices in Bristol

Every price adjusted for Bristol using a 1.075x cost multiplier, rounded to the nearest £5.

Single Storey Extension

Low

£32,250

Average

£53,750

High

£86,000

8-12 weeks

Double Storey Extension

Low

£53,750

Average

£91,375

High

£150,500

12-20 weeks

Loft Conversion

Low

£26,875

Average

£48,375

High

£80,625

6-10 weeks

Garage Conversion

Low

£8,600

Average

£16,125

High

£26,875

2-4 weeks

Porch Build

Low

£2,690

Average

£4,840

High

£8,600

1-2 weeks

Garden Wall

Low

£860

Average

£1,615

High

£3,225

2-4 days

Knock Through Internal Wall

Low

£1,075

Average

£1,935

High

£3,765

2-4 days

Chimney Breast Removal

Low

£1,290

Average

£2,150

High

£3,765

2-4 days

Underpinning

Low

£5,375

Average

£12,900

High

£26,875

2-4 weeks

Damp Proof Course

Low

£540

Average

£1,290

High

£2,690

1-3 days

New Build Garage

Low

£10,750

Average

£19,350

High

£32,250

3-5 weeks

Outbuilding or Garden Room

Low

£12,900

Average

£26,875

High

£53,750

3-6 weeks

Structural Steelwork (RSJ Installation)

Low

£1,075

Average

£1,935

High

£3,225

1-2 days

Patio or Decking Build

Low

£1,615

Average

£3,765

High

£7,525

3-5 days

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Regional comparison

How Bristol Compares

Average cost of single storey extension across regions.

Bristol
+7% £53,750
National Average
baseline £50,000
London
+24% £62,150

Local insights

What Affects Builder Costs in Bristol?

The South West has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around Bristol, 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 Bristol are typically 7% 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 Bristol 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 £53,750 to £150,500 for double storey extension in Bristol. Coastal properties in the South West may face additional considerations that affect pricing.

When getting quotes in Bristol, 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 Bristol

Explore costs for other services in the Bristol area.

40 services — scroll to explore

Common questions

Frequently Asked Questions

Common questions about builder costs in Bristol.

How much does a builder cost in Bristol in 2026?
Single Storey Extension in Bristol typically costs between £32,250 and £86,000, with the average being around £53,750. Prices vary depending on the scope of work, materials used, and the specific requirements of your property.
Are builder prices cheaper in Bristol than London?
Bristol prices are 7% above the national average, though still £8,400 cheaper than London for single storey extension.
How do I find a good builder in Bristol?
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 Bristol?
The main factors are the scope and complexity of what you need, the options and products chosen, and local market rates. Bristol rates are 7% above the national average. Getting multiple quotes is the best way to ensure a fair price.
Do builder prices include materials in Bristol?
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.