Heat load surveys and system design in Northampton
Summer peaks in the East Midlands make bedrooms under the roof the hardest rooms to keep comfortable. Every Northampton quote starts with a room-by-room survey rather than a guess from floor area.
For self-builds and extensions in Northampton, a standalone design pack can go straight to your builder. We cover Northampton and the rest of Northamptonshire, including Corby and Kettering. We cover NN1 and the streets around them.
Prices in Northampton
Our East Midlands guide price for heat load surveys and system design is £380–£1,195 for a standalone design pack, VAT included. That sits a little below the UK middle, reflecting typical East Midlands labour rates. A standalone design pack is priced on the size of the home, the number of rooms and how much drawing work your builder or architect needs. Typical Design pack work (drawings and schedules for one home) lands around £380–£745 in this area.
Home survey
Free with an installation quote.
Design pack
Drawings and schedules for one home.
Self-build pack
Whole-house design for a new build.
Planning and permissions
Since 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.
The survey
Surveys in Northampton cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. On a survey in Northampton the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows.
What is included
What a job in Northampton covers:
- Equipment selection and outdoor unit sizing
- Noise check to the nearest neighbour
- Written proposal with options
- Electrical load for your electrician
- Room-by-room heat gain and heat loss
Nearby
Neighbouring places we cover include Wellingborough (9 miles), Towcester (9 miles) and Daventry (12 miles). See all services in Northampton or heat load surveys and system design across Northamptonshire.