Insulation Specialist Costs in Northampton
East Midlands | Prices updated for 2026 | All estimates include labour and materials
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Estimated cost in Northampton
£350 - £900
Loft Insulation (full loft to 270mm)
Typical duration: 3-6 hours
Insulation Specialist Prices in Northampton
Loft Insulation
£350 - £900Labour
£200 - £500
Materials
£150 - £400
Typical duration: 3-6 hours
Cavity Wall Insulation
£500 - £1,400Labour
£300 - £800
Materials
£200 - £600
Typical duration: 2-4 hours
External Wall Insulation (EWI)
£7,000 - £18,000Labour
£4,000 - £10,000
Materials
£3,000 - £8,000
Typical duration: 2-4 weeks
Underfloor Insulation
£500 - £1,400Labour
£300 - £800
Materials
£200 - £600
Typical duration: 1-3 days
How Northampton Compares
Around the national average
Trade prices in Northampton are typically in line with the national average. This reflects local labour rates and the cost of living in East Midlands.
Seasonal Demand for Insulation Specialist Work
Peak demand is typically in Nov, with the quietest period around Apr. You may find lower prices and better availability during off-peak months.
What Affects the Price
Loft Insulation
- Loft area (square metres)
- Existing insulation depth
- Insulation type (mineral wool, blown fibre, rigid board)
- Access hatch and boarding requirements
- Whether pipes and tanks need insulating
Cavity Wall Insulation
- Property size and wall area
- Cavity width and condition
- Insulation material (bead, foam, fibre)
- Number of drill points and scaffolding
- Whether a borescope survey is needed first
External Wall Insulation (EWI)
- Wall area (square metres)
- Insulation board type and thickness
- Render system and finish
- Scaffolding requirements
- Window and door reveals, sills, and detailing
Underfloor Insulation
- Floor area and type (suspended timber or solid)
- Accessibility of the subfloor void
- Insulation material (rigid board, spray foam, mineral wool)
- Whether floorboards need lifting
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Frequently Asked Questions
How much does a insulation specialist cost in Northampton?
Insulation Specialist prices in Northampton typically range from £350 for loft insulation to £18,000 for external wall insulation (ewi). Prices include both labour and materials.
What is the average cost of loft insulation in Northampton?
Loft Insulation in Northampton costs between £350 and £900 on average, depending on the scope of work and materials chosen.
When is the cheapest time to hire a insulation specialist in Northampton?
Demand for insulation specialist work in Northampton is typically lowest in April. Booking during quieter months may mean better availability and competitive pricing.
Are insulation specialist prices in Northampton above or below the national average?
Insulation Specialist prices in Northampton are broadly in line with the national average.
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