3S Northampton Ltd
Weedon Road Industrial Estate · Midlands
Solar installers · Northampton
Find listed solar installers covering Northampton across 7 NN postcode districts covering the town and its immediate fringe. Every firm is MCS-certified and checked before we list them.
Listed installers
Every installer here is MCS-certified and checked before we list them. We don't rank or endorse, and featured listings are clearly labelled.
Weedon Road Industrial Estate · Midlands
Northampton · Midlands
Northampton · Midlands
Northampton · Midlands
Northampton · Midlands

Enter your postcode and we'll estimate your roof's direction, its solar potential, and show certified installers covering your area.
By the numbers
Typical yearly generation, per kW of panels
≈1,021 kWh per kWp a year — roughly 5% above the UK average
For every kilowatt of panels, a well-placed Northampton roof generates about this much a year. Your own total depends on roof direction, pitch and shading — the roof check estimates it for your address.
How the sun falls across the year
Sunlight peaks in summer and dips in winter — a system is sized for the whole year, not just the peak. Estimated from PVGIS climate data for your postcode area; a roof survey confirms your exact figure.
Solar resource data: © European Union, 2025, PVGIS, EU Science Hub.
5 MCS-certified installers cover Northampton in our directory, and 1 also fit battery storage and 1 also install heat pumps.
Sun figures from PVGIS; roof estimates include solar data from Google. How we measure.
Local context
Northampton is a large East Midlands town that grew on the boot-and-shoe trade and has expanded steadily with new housing. Its mix of old and new roofs shapes each install:
Grants & support
Solar and battery installations across the UK are currently zero-rated for VAT until 31 March 2027 — a straight saving on the installed price for every household, with no application needed. In England, ECO4 and the Warm Homes scheme can help eligible lower-income households with energy-efficiency measures through their energy supplier or local council.
Eligibility for grant schemes depends on your income, home and circumstances, and the schemes change. We keep the current picture on one page rather than guess what you'll qualify for.
Common questions
Most domestic installations are permitted development. Conservation areas and any listed building can need consent for visible panels. A local installer will know the West Northamptonshire Council position, and an installer survey confirms suitability first.
Northampton prices track the UK average. A typical 4 kWp system lands in the £4,800 to £6,800 range installed, with battery storage adding roughly £3,000 to £6,000. Solar and battery are zero-rated for VAT until 2027. The on-roof survey gives the firm figure.
Usually very good. Areas like Upton, Wootton and Grange Park have modern roofs with simple pitches and few obstructions, which tends to make for a clean install. A surveyor still checks orientation, shading and the consumer unit before quoting.
This page covers Northampton town and its immediate rural fringe (NN1 to NN7). The surrounding towns of Wellingborough, Rushden, Daventry, Towcester, Kettering and Corby each sit in their own catchment and are kept separate.
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Direction-led explanation, with the quick roof check.
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Annual benefit and payback in honest UK ranges.
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Top-of-funnel suitability check for UK homes.
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