South East regional pricing

How Much Does a Builder Cost in Hart?

Updated prices for . Hart prices are typically 30% above the national average.

14 services priced
South East region
Updated

Price summary

Hart Price Summary

Service Low Average High
Single Storey Extension £39,120 £65,200 £104,320
Double Storey Extension £65,200 £110,840 £182,560
Loft Conversion £32,600 £58,680 £97,800

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

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Full pricing

All Builder Prices in Hart

Every price adjusted for Hart using a 1.304x cost multiplier, rounded to the nearest £5.

Single Storey Extension

Low

£39,120

Average

£65,200

High

£104,320

8-12 weeks

Double Storey Extension

Low

£65,200

Average

£110,840

High

£182,560

12-20 weeks

Loft Conversion

Low

£32,600

Average

£58,680

High

£97,800

6-10 weeks

Garage Conversion

Low

£10,430

Average

£19,560

High

£32,600

2-4 weeks

Porch Build

Low

£3,260

Average

£5,870

High

£10,430

1-2 weeks

Garden Wall

Low

£1,045

Average

£1,955

High

£3,910

2-4 days

Knock Through Internal Wall

Low

£1,305

Average

£2,345

High

£4,565

2-4 days

Chimney Breast Removal

Low

£1,565

Average

£2,610

High

£4,565

2-4 days

Underpinning

Low

£6,520

Average

£15,650

High

£32,600

2-4 weeks

Damp Proof Course

Low

£650

Average

£1,565

High

£3,260

1-3 days

New Build Garage

Low

£13,040

Average

£23,470

High

£39,120

3-5 weeks

Outbuilding or Garden Room

Low

£15,650

Average

£32,600

High

£65,200

3-6 weeks

Structural Steelwork (RSJ Installation)

Low

£1,305

Average

£2,345

High

£3,910

1-2 days

Patio or Decking Build

Low

£1,955

Average

£4,565

High

£9,130

3-5 days

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Regional comparison

How Hart Compares

Average cost of single storey extension across regions.

Hart
+30% £65,200
National Average
baseline £50,000
London
+24% £62,150

Local insights

What Affects Builder Costs in Hart?

The South East has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around Hart, 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 East sits above the national average for trade costs, influenced by proximity to London and the generally higher cost of living. Labour rates in Hart are typically 30% 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 Hart 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 £65,200 to £182,560 for double storey extension in Hart. Coastal properties in the South East may face additional considerations that affect pricing.

When getting quotes in Hart, 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 Hart

Explore costs for other services in the Hart area.

40 services — scroll to explore

Common questions

Frequently Asked Questions

Common questions about builder costs in Hart.

How much does a builder cost in Hart in 2026?
Single Storey Extension in Hart typically costs between £39,120 and £104,320, with the average being around £65,200. Prices vary depending on the scope of work, materials used, and the specific requirements of your property.
Are builder prices cheaper in Hart than London?
Hart prices are 30% above the national average, though still comparable to London for single storey extension.
How do I find a good builder in Hart?
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 Hart?
The main factors are the scope and complexity of what you need, the options and products chosen, and local market rates. Hart rates are 30% above the national average. Getting multiple quotes is the best way to ensure a fair price.
Do builder prices include materials in Hart?
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.