North West regional pricing

How Much Does a Builder Cost in Chorley?

Updated prices for . Chorley prices are typically 8% above the national average.

14 services priced
North West region
Updated

Price summary

Chorley Price Summary

Service Low Average High
Single Storey Extension £32,460 £54,100 £86,560
Double Storey Extension £54,100 £91,970 £151,480
Loft Conversion £27,050 £48,690 £81,150

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

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Full pricing

All Builder Prices in Chorley

Every price adjusted for Chorley using a 1.082x cost multiplier, rounded to the nearest £5.

Single Storey Extension

Low

£32,460

Average

£54,100

High

£86,560

8-12 weeks

Double Storey Extension

Low

£54,100

Average

£91,970

High

£151,480

12-20 weeks

Loft Conversion

Low

£27,050

Average

£48,690

High

£81,150

6-10 weeks

Garage Conversion

Low

£8,655

Average

£16,230

High

£27,050

2-4 weeks

Porch Build

Low

£2,705

Average

£4,870

High

£8,655

1-2 weeks

Garden Wall

Low

£865

Average

£1,625

High

£3,245

2-4 days

Knock Through Internal Wall

Low

£1,080

Average

£1,950

High

£3,785

2-4 days

Chimney Breast Removal

Low

£1,300

Average

£2,165

High

£3,785

2-4 days

Underpinning

Low

£5,410

Average

£12,985

High

£27,050

2-4 weeks

Damp Proof Course

Low

£540

Average

£1,300

High

£2,705

1-3 days

New Build Garage

Low

£10,820

Average

£19,475

High

£32,460

3-5 weeks

Outbuilding or Garden Room

Low

£12,985

Average

£27,050

High

£54,100

3-6 weeks

Structural Steelwork (RSJ Installation)

Low

£1,080

Average

£1,950

High

£3,245

1-2 days

Patio or Decking Build

Low

£1,625

Average

£3,785

High

£7,575

3-5 days

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Regional comparison

How Chorley Compares

Average cost of single storey extension across regions.

Chorley
+8% £54,100
National Average
baseline £50,000
London
+24% £62,150

Local insights

What Affects Builder Costs in Chorley?

Chorley's housing stock is dominated by Victorian and Edwardian terraced houses, with large numbers of properties across the wider metropolitan area and surrounding towns. These older homes often present challenges for builder work, including limited access, older infrastructure and the need for more preparation. Properties that haven't been updated in decades tend to push costs toward the higher end of the ranges shown above.

The North West consistently sits below the national average for trade costs, and Chorley is no exception. Labour rates here are around 8% above the UK average and considerably lower than London or the South East. This reflects both the lower cost of living and a healthy supply of qualified builder professionals across the region. That said, prices can still vary by 30-50% between different tradespeople for the same job, making multiple quotes essential.

Several factors affect builder costs in Chorley. Back-to-back terraces may have limited access that makes work more complicated and expensive. Properties with solid walls rather than cavities can add to the difficulty. For larger projects, expect costs at the higher end — a double storey extension in Chorley typically runs £54,100 to £151,480. Material and product choices also make a significant difference to the total.

When getting quotes in Chorley, aim for a minimum of 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 conditions, identify potential complications, and provide a clear cost breakdown. Be wary of quotes that seem significantly cheaper than others — they may be cutting corners on materials or quality. Always check qualifications, insurance and recent reviews before hiring.

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More services

Other Services in Chorley

Explore costs for other services in the Chorley area.

40 services — scroll to explore

Common questions

Frequently Asked Questions

Common questions about builder costs in Chorley.

How much does a builder cost in Chorley in 2026?
Single Storey Extension in Chorley typically costs between £32,460 and £86,560, with the average being around £54,100. Prices vary depending on the scope of work, materials used, and the specific requirements of your property.
Are builder prices cheaper in Chorley than London?
Chorley prices are 8% above the national average, though still £8,050 cheaper than London for single storey extension.
How do I find a good builder in Chorley?
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 Chorley?
The main factors are the scope and complexity of what you need, the options and products chosen, and local market rates. Chorley rates are 8% above the national average. Getting multiple quotes is the best way to ensure a fair price.
Do builder prices include materials in Chorley?
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.