South East regional pricing
How Much Does a Builder Cost in Gravesham?
Updated prices for . Gravesham prices are typically 11% above the national average.
Price summary
Gravesham Price Summary
| Service | Low | Average | High |
|---|---|---|---|
| Single Storey Extension | £33,180 | £55,300 | £88,480 |
| Double Storey Extension | £55,300 | £94,010 | £154,840 |
| Loft Conversion | £27,650 | £49,770 | £82,950 |
Prices include labour and materials. VAT may apply. Based on South East regional pricing.
Full pricing
All Builder Prices in Gravesham
Every price adjusted for Gravesham using a 1.106x cost multiplier, rounded to the nearest £5.
| Job | Low | Average | High | Duration |
|---|---|---|---|---|
| Single Storey Extension | £33,180 | £55,300 | £88,480 | 8-12 weeks |
| Double Storey Extension | £55,300 | £94,010 | £154,840 | 12-20 weeks |
| Loft Conversion | £27,650 | £49,770 | £82,950 | 6-10 weeks |
| Garage Conversion | £8,850 | £16,590 | £27,650 | 2-4 weeks |
| Porch Build | £2,765 | £4,975 | £8,850 | 1-2 weeks |
| Garden Wall | £885 | £1,660 | £3,320 | 2-4 days |
| Knock Through Internal Wall | £1,105 | £1,990 | £3,870 | 2-4 days |
| Chimney Breast Removal | £1,325 | £2,210 | £3,870 | 2-4 days |
| Underpinning | £5,530 | £13,270 | £27,650 | 2-4 weeks |
| Damp Proof Course | £555 | £1,325 | £2,765 | 1-3 days |
| New Build Garage | £11,060 | £19,910 | £33,180 | 3-5 weeks |
| Outbuilding or Garden Room | £13,270 | £27,650 | £55,300 | 3-6 weeks |
| Structural Steelwork (RSJ Installation) | £1,105 | £1,990 | £3,320 | 1-2 days |
| Patio or Decking Build | £1,660 | £3,870 | £7,740 | 3-5 days |
Single Storey Extension
Low
£33,180
Average
£55,300
High
£88,480
8-12 weeks
Double Storey Extension
Low
£55,300
Average
£94,010
High
£154,840
12-20 weeks
Loft Conversion
Low
£27,650
Average
£49,770
High
£82,950
6-10 weeks
Garage Conversion
Low
£8,850
Average
£16,590
High
£27,650
2-4 weeks
Porch Build
Low
£2,765
Average
£4,975
High
£8,850
1-2 weeks
Garden Wall
Low
£885
Average
£1,660
High
£3,320
2-4 days
Knock Through Internal Wall
Low
£1,105
Average
£1,990
High
£3,870
2-4 days
Chimney Breast Removal
Low
£1,325
Average
£2,210
High
£3,870
2-4 days
Underpinning
Low
£5,530
Average
£13,270
High
£27,650
2-4 weeks
Damp Proof Course
Low
£555
Average
£1,325
High
£2,765
1-3 days
New Build Garage
Low
£11,060
Average
£19,910
High
£33,180
3-5 weeks
Outbuilding or Garden Room
Low
£13,270
Average
£27,650
High
£55,300
3-6 weeks
Structural Steelwork (RSJ Installation)
Low
£1,105
Average
£1,990
High
£3,320
1-2 days
Patio or Decking Build
Low
£1,660
Average
£3,870
High
£7,740
3-5 days
Regional comparison
How Gravesham Compares
Average cost of single storey extension across regions.
Local insights
What Affects Builder Costs in Gravesham?
The South East has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around Gravesham, 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 Gravesham are typically 11% 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 Gravesham 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 £55,300 to £154,840 for double storey extension in Gravesham. Coastal properties in the South East may face additional considerations that affect pricing.
When getting quotes in Gravesham, 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 Gravesham
Explore costs for other services in the Gravesham 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 Gravesham.