East Midlands regional pricing
How Much Does a Builder Cost in Boston?
Updated prices for . Boston prices are typically 23% below the national average.
Price summary
Boston Price Summary
| Service | Low | Average | High |
|---|---|---|---|
| Single Storey Extension | £22,980 | £38,300 | £61,280 |
| Double Storey Extension | £38,300 | £65,110 | £107,240 |
| Loft Conversion | £19,150 | £34,470 | £57,450 |
Prices include labour and materials. VAT may apply. Based on East Midlands regional pricing.
Full pricing
All Builder Prices in Boston
Every price adjusted for Boston using a 0.766x cost multiplier, rounded to the nearest £5.
| Job | Low | Average | High | Duration |
|---|---|---|---|---|
| Single Storey Extension | £22,980 | £38,300 | £61,280 | 8-12 weeks |
| Double Storey Extension | £38,300 | £65,110 | £107,240 | 12-20 weeks |
| Loft Conversion | £19,150 | £34,470 | £57,450 | 6-10 weeks |
| Garage Conversion | £6,130 | £11,490 | £19,150 | 2-4 weeks |
| Porch Build | £1,915 | £3,445 | £6,130 | 1-2 weeks |
| Garden Wall | £615 | £1,150 | £2,300 | 2-4 days |
| Knock Through Internal Wall | £765 | £1,380 | £2,680 | 2-4 days |
| Chimney Breast Removal | £920 | £1,530 | £2,680 | 2-4 days |
| Underpinning | £3,830 | £9,190 | £19,150 | 2-4 weeks |
| Damp Proof Course | £385 | £920 | £1,915 | 1-3 days |
| New Build Garage | £7,660 | £13,790 | £22,980 | 3-5 weeks |
| Outbuilding or Garden Room | £9,190 | £19,150 | £38,300 | 3-6 weeks |
| Structural Steelwork (RSJ Installation) | £765 | £1,380 | £2,300 | 1-2 days |
| Patio or Decking Build | £1,150 | £2,680 | £5,360 | 3-5 days |
Single Storey Extension
Low
£22,980
Average
£38,300
High
£61,280
8-12 weeks
Double Storey Extension
Low
£38,300
Average
£65,110
High
£107,240
12-20 weeks
Loft Conversion
Low
£19,150
Average
£34,470
High
£57,450
6-10 weeks
Garage Conversion
Low
£6,130
Average
£11,490
High
£19,150
2-4 weeks
Porch Build
Low
£1,915
Average
£3,445
High
£6,130
1-2 weeks
Garden Wall
Low
£615
Average
£1,150
High
£2,300
2-4 days
Knock Through Internal Wall
Low
£765
Average
£1,380
High
£2,680
2-4 days
Chimney Breast Removal
Low
£920
Average
£1,530
High
£2,680
2-4 days
Underpinning
Low
£3,830
Average
£9,190
High
£19,150
2-4 weeks
Damp Proof Course
Low
£385
Average
£920
High
£1,915
1-3 days
New Build Garage
Low
£7,660
Average
£13,790
High
£22,980
3-5 weeks
Outbuilding or Garden Room
Low
£9,190
Average
£19,150
High
£38,300
3-6 weeks
Structural Steelwork (RSJ Installation)
Low
£765
Average
£1,380
High
£2,300
1-2 days
Patio or Decking Build
Low
£1,150
Average
£2,680
High
£5,360
3-5 days
Regional comparison
How Boston Compares
Average cost of single storey extension across regions.
Local insights
What Affects Builder Costs in Boston?
The Midlands has a wide range of housing types, from Victorian terraces and back-to-backs to post-war council estates and modern developments. Boston and surrounding areas like Solihull and Coventry have a large number of properties of varying ages and conditions. Older properties generally cost more for builder work due to the extra preparation and access challenges they present.
The East Midlands sits slightly below the national average for trade costs, making it one of the more affordable areas for builder work. Labour rates in Boston are around 23% below the UK average. There's a good supply of qualified professionals across the Midlands, but prices still vary by 30-50% between tradespeople for the same job. Always get multiple quotes.
What you pay for builder work in Boston depends on the job complexity, materials chosen, and the condition of your property. Older properties with solid walls or limited access can make work more disruptive and expensive. For larger projects, expect to pay £38,300 to £107,240 for double storey extension in Boston. Material choices also make a significant difference to the total.
When getting quotes in Boston, 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 conditions, identify potential complications, and give you a detailed breakdown of costs. Be wary of significantly cheaper quotes — they may cut corners on materials or quality. Always check qualifications, insurance and recent reviews.
More services
Other Services in Boston
Explore costs for other services in the Boston 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 Boston.