South West regional pricing
How Much Does a Builder Cost in South Gloucestershire?
Updated prices for . South Gloucestershire prices are typically 5% above the national average.
Price summary
South Gloucestershire Price Summary
| Service | Low | Average | High |
|---|---|---|---|
| Single Storey Extension | £31,650 | £52,750 | £84,400 |
| Double Storey Extension | £52,750 | £89,675 | £147,700 |
| Loft Conversion | £26,375 | £47,475 | £79,125 |
Prices include labour and materials. VAT may apply. Based on South West regional pricing.
Full pricing
All Builder Prices in South Gloucestershire
Every price adjusted for South Gloucestershire using a 1.055x cost multiplier, rounded to the nearest £5.
| Job | Low | Average | High | Duration |
|---|---|---|---|---|
| Single Storey Extension | £31,650 | £52,750 | £84,400 | 8-12 weeks |
| Double Storey Extension | £52,750 | £89,675 | £147,700 | 12-20 weeks |
| Loft Conversion | £26,375 | £47,475 | £79,125 | 6-10 weeks |
| Garage Conversion | £8,440 | £15,825 | £26,375 | 2-4 weeks |
| Porch Build | £2,640 | £4,750 | £8,440 | 1-2 weeks |
| Garden Wall | £845 | £1,585 | £3,165 | 2-4 days |
| Knock Through Internal Wall | £1,055 | £1,900 | £3,695 | 2-4 days |
| Chimney Breast Removal | £1,265 | £2,110 | £3,695 | 2-4 days |
| Underpinning | £5,275 | £12,660 | £26,375 | 2-4 weeks |
| Damp Proof Course | £530 | £1,265 | £2,640 | 1-3 days |
| New Build Garage | £10,550 | £18,990 | £31,650 | 3-5 weeks |
| Outbuilding or Garden Room | £12,660 | £26,375 | £52,750 | 3-6 weeks |
| Structural Steelwork (RSJ Installation) | £1,055 | £1,900 | £3,165 | 1-2 days |
| Patio or Decking Build | £1,585 | £3,695 | £7,385 | 3-5 days |
Single Storey Extension
Low
£31,650
Average
£52,750
High
£84,400
8-12 weeks
Double Storey Extension
Low
£52,750
Average
£89,675
High
£147,700
12-20 weeks
Loft Conversion
Low
£26,375
Average
£47,475
High
£79,125
6-10 weeks
Garage Conversion
Low
£8,440
Average
£15,825
High
£26,375
2-4 weeks
Porch Build
Low
£2,640
Average
£4,750
High
£8,440
1-2 weeks
Garden Wall
Low
£845
Average
£1,585
High
£3,165
2-4 days
Knock Through Internal Wall
Low
£1,055
Average
£1,900
High
£3,695
2-4 days
Chimney Breast Removal
Low
£1,265
Average
£2,110
High
£3,695
2-4 days
Underpinning
Low
£5,275
Average
£12,660
High
£26,375
2-4 weeks
Damp Proof Course
Low
£530
Average
£1,265
High
£2,640
1-3 days
New Build Garage
Low
£10,550
Average
£18,990
High
£31,650
3-5 weeks
Outbuilding or Garden Room
Low
£12,660
Average
£26,375
High
£52,750
3-6 weeks
Structural Steelwork (RSJ Installation)
Low
£1,055
Average
£1,900
High
£3,165
1-2 days
Patio or Decking Build
Low
£1,585
Average
£3,695
High
£7,385
3-5 days
Regional comparison
How South Gloucestershire Compares
Average cost of single storey extension across regions.
Local insights
What Affects Builder Costs in South Gloucestershire?
The South West has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around South Gloucestershire, 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 West sits above the national average for trade costs, influenced by proximity to London and the generally higher cost of living. Labour rates in South Gloucestershire are typically 5% 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 South Gloucestershire 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 £52,750 to £147,700 for double storey extension in South Gloucestershire. Coastal properties in the South West may face additional considerations that affect pricing.
When getting quotes in South Gloucestershire, 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 South Gloucestershire
Explore costs for other services in the South Gloucestershire area.
40 services — scroll to explore
UK-wide pricing
Builder Costs in Other Cities
Compare builder prices across the UK.
Common questions
Frequently Asked Questions
Common questions about builder costs in South Gloucestershire.