South West regional pricing

How Much Does a Builder Cost in Exeter?

Updated prices for . Exeter prices are typically 12% below the national average.

14 services priced
South West region
Updated

Price summary

Exeter Price Summary

Service Low Average High
Single Storey Extension £26,370 £43,950 £70,320
Double Storey Extension £43,950 £74,715 £123,060
Loft Conversion £21,975 £39,555 £65,925

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

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Full pricing

All Builder Prices in Exeter

Every price adjusted for Exeter using a 0.879x cost multiplier, rounded to the nearest £5.

Single Storey Extension

Low

£26,370

Average

£43,950

High

£70,320

8-12 weeks

Double Storey Extension

Low

£43,950

Average

£74,715

High

£123,060

12-20 weeks

Loft Conversion

Low

£21,975

Average

£39,555

High

£65,925

6-10 weeks

Garage Conversion

Low

£7,030

Average

£13,185

High

£21,975

2-4 weeks

Porch Build

Low

£2,200

Average

£3,955

High

£7,030

1-2 weeks

Garden Wall

Low

£705

Average

£1,320

High

£2,635

2-4 days

Knock Through Internal Wall

Low

£880

Average

£1,580

High

£3,075

2-4 days

Chimney Breast Removal

Low

£1,055

Average

£1,760

High

£3,075

2-4 days

Underpinning

Low

£4,395

Average

£10,550

High

£21,975

2-4 weeks

Damp Proof Course

Low

£440

Average

£1,055

High

£2,200

1-3 days

New Build Garage

Low

£8,790

Average

£15,820

High

£26,370

3-5 weeks

Outbuilding or Garden Room

Low

£10,550

Average

£21,975

High

£43,950

3-6 weeks

Structural Steelwork (RSJ Installation)

Low

£880

Average

£1,580

High

£2,635

1-2 days

Patio or Decking Build

Low

£1,320

Average

£3,075

High

£6,155

3-5 days

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Regional comparison

How Exeter Compares

Average cost of single storey extension across regions.

Exeter
-12% £43,950
National Average
baseline £50,000
London
+24% £62,150

Local insights

What Affects Builder Costs in Exeter?

The South West has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around Exeter, 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 Exeter are typically 12% below 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 Exeter 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 £43,950 to £123,060 for double storey extension in Exeter. Coastal properties in the South West may face additional considerations that affect pricing.

When getting quotes in Exeter, 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 Exeter

Explore costs for other services in the Exeter area.

40 services — scroll to explore

Common questions

Frequently Asked Questions

Common questions about builder costs in Exeter.

How much does a builder cost in Exeter in 2026?
Single Storey Extension in Exeter typically costs between £26,370 and £70,320, with the average being around £43,950. Prices vary depending on the scope of work, materials used, and the specific requirements of your property.
Are builder prices cheaper in Exeter than London?
Yes. Exeter builder costs are typically 12% below the national average, while London prices run around 24% above it. For single storey extension, you could save over £18,200 compared to the same job in London.
How do I find a good builder in Exeter?
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 Exeter?
The main factors are the scope and complexity of what you need, the options and products chosen, and local market rates. Exeter rates are 12% below the national average. Getting multiple quotes is the best way to ensure a fair price.
Do builder prices include materials in Exeter?
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.