South East regional pricing
How Much Does a Builder Cost in Guildford?
Updated prices for . Guildford prices are typically 21% above the national average.
Price summary
Guildford Price Summary
| Service | Low | Average | High |
|---|---|---|---|
| Single Storey Extension | £36,360 | £60,600 | £96,960 |
| Double Storey Extension | £60,600 | £103,020 | £169,680 |
| Loft Conversion | £30,300 | £54,540 | £90,900 |
Prices include labour and materials. VAT may apply. Based on South East regional pricing.
Full pricing
All Builder Prices in Guildford
Every price adjusted for Guildford using a 1.212x cost multiplier, rounded to the nearest £5.
| Job | Low | Average | High | Duration |
|---|---|---|---|---|
| Single Storey Extension | £36,360 | £60,600 | £96,960 | 8-12 weeks |
| Double Storey Extension | £60,600 | £103,020 | £169,680 | 12-20 weeks |
| Loft Conversion | £30,300 | £54,540 | £90,900 | 6-10 weeks |
| Garage Conversion | £9,695 | £18,180 | £30,300 | 2-4 weeks |
| Porch Build | £3,030 | £5,455 | £9,695 | 1-2 weeks |
| Garden Wall | £970 | £1,820 | £3,635 | 2-4 days |
| Knock Through Internal Wall | £1,210 | £2,180 | £4,240 | 2-4 days |
| Chimney Breast Removal | £1,455 | £2,425 | £4,240 | 2-4 days |
| Underpinning | £6,060 | £14,545 | £30,300 | 2-4 weeks |
| Damp Proof Course | £605 | £1,455 | £3,030 | 1-3 days |
| New Build Garage | £12,120 | £21,815 | £36,360 | 3-5 weeks |
| Outbuilding or Garden Room | £14,545 | £30,300 | £60,600 | 3-6 weeks |
| Structural Steelwork (RSJ Installation) | £1,210 | £2,180 | £3,635 | 1-2 days |
| Patio or Decking Build | £1,820 | £4,240 | £8,485 | 3-5 days |
Single Storey Extension
Low
£36,360
Average
£60,600
High
£96,960
8-12 weeks
Double Storey Extension
Low
£60,600
Average
£103,020
High
£169,680
12-20 weeks
Loft Conversion
Low
£30,300
Average
£54,540
High
£90,900
6-10 weeks
Garage Conversion
Low
£9,695
Average
£18,180
High
£30,300
2-4 weeks
Porch Build
Low
£3,030
Average
£5,455
High
£9,695
1-2 weeks
Garden Wall
Low
£970
Average
£1,820
High
£3,635
2-4 days
Knock Through Internal Wall
Low
£1,210
Average
£2,180
High
£4,240
2-4 days
Chimney Breast Removal
Low
£1,455
Average
£2,425
High
£4,240
2-4 days
Underpinning
Low
£6,060
Average
£14,545
High
£30,300
2-4 weeks
Damp Proof Course
Low
£605
Average
£1,455
High
£3,030
1-3 days
New Build Garage
Low
£12,120
Average
£21,815
High
£36,360
3-5 weeks
Outbuilding or Garden Room
Low
£14,545
Average
£30,300
High
£60,600
3-6 weeks
Structural Steelwork (RSJ Installation)
Low
£1,210
Average
£2,180
High
£3,635
1-2 days
Patio or Decking Build
Low
£1,820
Average
£4,240
High
£8,485
3-5 days
Regional comparison
How Guildford Compares
Average cost of single storey extension across regions.
Local insights
What Affects Builder Costs in Guildford?
The South East has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around Guildford, 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 Guildford are typically 21% 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 Guildford 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 £60,600 to £169,680 for double storey extension in Guildford. Coastal properties in the South East may face additional considerations that affect pricing.
When getting quotes in Guildford, 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 Guildford
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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 Guildford.