East of England regional pricing
How Much Does a Builder Cost in Stevenage?
Updated prices for . Stevenage prices are typically 20% above the national average.
Price summary
Stevenage Price Summary
| Service | Low | Average | High |
|---|---|---|---|
| Single Storey Extension | £35,880 | £59,800 | £95,680 |
| Double Storey Extension | £59,800 | £101,660 | £167,440 |
| Loft Conversion | £29,900 | £53,820 | £89,700 |
Prices include labour and materials. VAT may apply. Based on East of England regional pricing.
Full pricing
All Builder Prices in Stevenage
Every price adjusted for Stevenage using a 1.196x cost multiplier, rounded to the nearest £5.
| Job | Low | Average | High | Duration |
|---|---|---|---|---|
| Single Storey Extension | £35,880 | £59,800 | £95,680 | 8-12 weeks |
| Double Storey Extension | £59,800 | £101,660 | £167,440 | 12-20 weeks |
| Loft Conversion | £29,900 | £53,820 | £89,700 | 6-10 weeks |
| Garage Conversion | £9,570 | £17,940 | £29,900 | 2-4 weeks |
| Porch Build | £2,990 | £5,380 | £9,570 | 1-2 weeks |
| Garden Wall | £955 | £1,795 | £3,590 | 2-4 days |
| Knock Through Internal Wall | £1,195 | £2,155 | £4,185 | 2-4 days |
| Chimney Breast Removal | £1,435 | £2,390 | £4,185 | 2-4 days |
| Underpinning | £5,980 | £14,350 | £29,900 | 2-4 weeks |
| Damp Proof Course | £600 | £1,435 | £2,990 | 1-3 days |
| New Build Garage | £11,960 | £21,530 | £35,880 | 3-5 weeks |
| Outbuilding or Garden Room | £14,350 | £29,900 | £59,800 | 3-6 weeks |
| Structural Steelwork (RSJ Installation) | £1,195 | £2,155 | £3,590 | 1-2 days |
| Patio or Decking Build | £1,795 | £4,185 | £8,370 | 3-5 days |
Single Storey Extension
Low
£35,880
Average
£59,800
High
£95,680
8-12 weeks
Double Storey Extension
Low
£59,800
Average
£101,660
High
£167,440
12-20 weeks
Loft Conversion
Low
£29,900
Average
£53,820
High
£89,700
6-10 weeks
Garage Conversion
Low
£9,570
Average
£17,940
High
£29,900
2-4 weeks
Porch Build
Low
£2,990
Average
£5,380
High
£9,570
1-2 weeks
Garden Wall
Low
£955
Average
£1,795
High
£3,590
2-4 days
Knock Through Internal Wall
Low
£1,195
Average
£2,155
High
£4,185
2-4 days
Chimney Breast Removal
Low
£1,435
Average
£2,390
High
£4,185
2-4 days
Underpinning
Low
£5,980
Average
£14,350
High
£29,900
2-4 weeks
Damp Proof Course
Low
£600
Average
£1,435
High
£2,990
1-3 days
New Build Garage
Low
£11,960
Average
£21,530
High
£35,880
3-5 weeks
Outbuilding or Garden Room
Low
£14,350
Average
£29,900
High
£59,800
3-6 weeks
Structural Steelwork (RSJ Installation)
Low
£1,195
Average
£2,155
High
£3,590
1-2 days
Patio or Decking Build
Low
£1,795
Average
£4,185
High
£8,370
3-5 days
Regional comparison
How Stevenage Compares
Average cost of single storey extension across regions.
Local insights
What Affects Builder Costs in Stevenage?
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 Stevenage, 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 Stevenage are typically 20% 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 Stevenage 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 £59,800 to £167,440 for double storey extension in Stevenage. Coastal properties in the East of England may face additional considerations that affect pricing.
When getting quotes in Stevenage, 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.
More services
Other Services in Stevenage
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UK-wide pricing
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Common questions
Frequently Asked Questions
Common questions about builder costs in Stevenage.