East of England regional pricing

How Much Does a Builder Cost in Dacorum?

Updated prices for . Dacorum prices are typically 22% above the national average.

14 services priced
East of England region
Updated

Price summary

Dacorum Price Summary

Service Low Average High
Single Storey Extension £36,540 £60,900 £97,440
Double Storey Extension £60,900 £103,530 £170,520
Loft Conversion £30,450 £54,810 £91,350

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 Dacorum

Every price adjusted for Dacorum using a 1.218x cost multiplier, rounded to the nearest £5.

Single Storey Extension

Low

£36,540

Average

£60,900

High

£97,440

8-12 weeks

Double Storey Extension

Low

£60,900

Average

£103,530

High

£170,520

12-20 weeks

Loft Conversion

Low

£30,450

Average

£54,810

High

£91,350

6-10 weeks

Garage Conversion

Low

£9,745

Average

£18,270

High

£30,450

2-4 weeks

Porch Build

Low

£3,045

Average

£5,480

High

£9,745

1-2 weeks

Garden Wall

Low

£975

Average

£1,825

High

£3,655

2-4 days

Knock Through Internal Wall

Low

£1,220

Average

£2,190

High

£4,265

2-4 days

Chimney Breast Removal

Low

£1,460

Average

£2,435

High

£4,265

2-4 days

Underpinning

Low

£6,090

Average

£14,615

High

£30,450

2-4 weeks

Damp Proof Course

Low

£610

Average

£1,460

High

£3,045

1-3 days

New Build Garage

Low

£12,180

Average

£21,925

High

£36,540

3-5 weeks

Outbuilding or Garden Room

Low

£14,615

Average

£30,450

High

£60,900

3-6 weeks

Structural Steelwork (RSJ Installation)

Low

£1,220

Average

£2,190

High

£3,655

1-2 days

Patio or Decking Build

Low

£1,825

Average

£4,265

High

£8,525

3-5 days

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Regional comparison

How Dacorum Compares

Average cost of single storey extension across regions.

Dacorum
+22% £60,900
National Average
baseline £50,000
London
+24% £62,150

Local insights

What Affects Builder Costs in Dacorum?

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 Dacorum, 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 Dacorum are typically 22% 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 Dacorum 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 £60,900 to £170,520 for double storey extension in Dacorum. Coastal properties in the East of England may face additional considerations that affect pricing.

When getting quotes in Dacorum, 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 Dacorum

Explore costs for other services in the Dacorum area.

40 services — scroll to explore

Common questions

Frequently Asked Questions

Common questions about builder costs in Dacorum.

How much does a builder cost in Dacorum in 2026?
Single Storey Extension in Dacorum typically costs between £36,540 and £97,440, with the average being around £60,900. Prices vary depending on the scope of work, materials used, and the specific requirements of your property.
Are builder prices cheaper in Dacorum than London?
Dacorum prices are 22% above the national average, though still £1,250 cheaper than London for single storey extension.
How do I find a good builder in Dacorum?
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 Dacorum?
The main factors are the scope and complexity of what you need, the options and products chosen, and local market rates. Dacorum rates are 22% above the national average. Getting multiple quotes is the best way to ensure a fair price.
Do builder prices include materials in Dacorum?
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.