extension builder · Northampton · NN3 9TU
extension builder · Northampton · NN3 3BW
✦ Local pricing insight
Builder in NN3 typically charge £28–£45/hr
Indicative pricing from market data — request quotes for exact figures.
✦ Builder cost calculator
Based on builder rates in NN3, Northampton.
The calculator gives you a range. For a real number tailored to your job, get free quotes from up to 5 verified builders serving NN3.
Domifyr lists 6 verified builders serving NN3 and the surrounding postcodes. All builders on Domifyr have been identity-verified and hold valid insurance. Certification status is displayed on every profile.
Typical hourly rates for builders in NN3 range from £28 to £45, with a callout fee around £80. Northampton East Midlands rates sit below London but above northern regions, with groundwork priced per project and rendering per square metre. Fixed-price quotes are available for most standard work — request one through Domifyr for free.
| Job | Typical range |
|---|---|
| House extensions | £35,000–£85,000 |
| Loft conversions | £28,000–£65,000 |
| Garage conversions | £12,000–£28,000 |
| Structural alterations | £3,500–£18,000 |
| Bricklaying | £450–£850 |
| Groundwork and foundations | £5,000–£18,000 |
| Rendering | £45–£75 |
| New builds | £1,800–£2,400 |
Indicative ranges from market data — actual quotes vary by scope, access, materials, and timing. Request quotes through Domifyr for accurate figures.
Typical builders in NN3 charge £28–£45 per hour, with a callout fee around £80. Emergency callouts are typically 40% higher. Northampton East Midlands rates sit below London but above northern regions, with groundwork priced per project and rendering per square metre.
Most builders in NN3 can quote within 24 hours for standard work. For emergencies (leaks, lockouts, no heating), expect a response in 1–3 hours.
Yes — all builders on Domifyr are identity-verified and insured. Certification status is displayed on every profile.
About the author
Senior Editor, Building & Renovation · 15years' experience · RIBA Part 1 & Part 2 qualified
RIBA-trained, now writes about UK extensions, loft conversions and planning. 15 years covering UK building regulations.