East of England regional pricing

How Much Does a Builder Cost in Basildon?

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

14 services priced
East of England region
Updated

Price summary

Basildon 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 East of England regional pricing.

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Full pricing

All Builder Prices in Basildon

Every price adjusted for Basildon 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 Basildon Compares

Average cost of single storey extension across regions.

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

Local insights

What Affects Builder Costs in Basildon?

The East of England has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around Basildon, 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 East of England sits above the national average for trade costs, influenced by proximity to London and the generally higher cost of living. Labour rates in Basildon are typically 8% 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 Basildon 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 £54,100 to £151,480 for double storey extension in Basildon. Coastal properties in the East of England may face additional considerations that affect pricing.

When getting quotes in Basildon, 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 Basildon

Explore costs for other services in the Basildon area.

40 services — scroll to explore

Common questions

Frequently Asked Questions

Common questions about builder costs in Basildon.

How much does a builder cost in Basildon in 2026?
Single Storey Extension in Basildon 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 Basildon than London?
Basildon 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 Basildon?
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 Basildon?
The main factors are the scope and complexity of what you need, the options and products chosen, and local market rates. Basildon 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 Basildon?
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.