Air source heat pumps
Engineered into the home, not bolted on.
A heat pump retrofit done properly: room-by-room heat-loss design, cylinder and pipework chosen to fit the building, and a system that runs efficiently from day one in Scottish winters.
Heat pumps · solar · batteries · air conditioning
Renewable energy, installed properly across Scotland.
Based in Inverness, working across Scotland since 2010.
— A recent install in Beauly
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Since 2010
Designing systems properly across Scotland
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4,500+
Scottish properties with renewable systems installed since 2010
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50+
Community projects across Scotland
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6
Technologies installed: heat pumps, ground source, solar PV, battery, air con, biomass
Accredited & trusted
How we design
We design the whole system, not a single product.
Most properties aren't one-technology problems. We regularly design and install combinations — a heat pump driving underfloor heating and radiators, air conditioning for rooms that need cooling or fast heat, solar PV and battery to power it, biomass where it suits — engineered around the specific property and how the customer actually lives.
Why customers choose us
Merit-based reasons, in our own words.
We let the work speak. Here's what tends to bring customers to us, and what keeps them with us.
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Technical depth on integrated systems
The custom integrations most installers turn down — like a biomass boiler and heat pump sharing one control manifold — we engineer directly with the manufacturer. See the Fortrose case study.
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Manufacturer-trained across brands
Specialist training on Vaillant, Panasonic, Mitsubishi, Grant UK and others — so we recommend the kit that suits your home, not the kit we're tied to.
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16 years of in-house experience
Installing renewables since 2010 — before most Scottish heating firms took heat pumps seriously. Sixteen winters of weather-tested installs, and the judgement that comes with them.
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Customers who come back
Much of our work is repeat business — Loch Ness Hub returned years after their first install to add battery storage and an EV charger. Read their story.
Our four pillars
Specialists in the technologies that work together.
Surveyed, designed and project-managed in-house, with our own engineers and trusted specialists delivering every install to the same standard.
Air source heat pumps
Heat pumps designed for SCOPs of 4.0+ — properly sized, properly installed, properly commissioned. MCS-certified, installed by our own engineers.
Learn more →
Solar PV
Roof-mounted solar that performs surprisingly well in Scotland's long summer daylight.
Learn more →
Battery storage
Store solar generation or off-peak grid power for when you need it most.
Learn more →
Air conditioning
Quiet, reversible cooling and heating from a single discreet indoor unit.
Learn more →
Also: ground source heat pumps for properties where it's the right choice.
How we work
Six steps, end to end.
From the first free estimate through to a year of post-install remote monitoring, every project runs the same way. Designed and project-managed in-house, delivered by fully qualified engineers at every stage.
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Step 1
Free estimate
A no-obligation estimate based on what you tell us about the property and what you want the system to do. No call-out fee, no pressure.
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Step 2
Pre-start survey
Once an estimate is accepted, we carry out a proper site survey before any installation — measuring the building, modelling heat loss or generation, and checking the existing services.
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Step 3
Full proposal
Issued after the survey. Clearly flags any changes from the estimate, with the reasoning. Fully transparent up front — no mid-job surprises.
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Step 4
Installation
Carried out by fully qualified engineers at every stage. We programme the schedule with you and keep disruption to the building proportionate.
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Step 5
Detailed handover
On every job. You leave the handover knowing exactly how the system works, what every control does, and where to find your paperwork.
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Step 6
First-year monitoring & optimisation
We remotely monitor every system we install and optimise it through the first year — tuning for efficiency and comfort as you live with it through every season.
Recent work
What good installation looks like — and the team behind it.
How we work
Six steps, end to end.
From free estimate through a year of post-install monitoring, every project runs the same way. Designed and project-managed in-house, with fully qualified engineers at every stage.
Hear it from our customers
The best people to ask are the ones who've switched.
Real McInnes customers, in their own homes, on what the switch was actually like.
Latest insights
Practical writing from the team.
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12 July 2026
Warm Homes Loan Scheme: cheaper borrowing for heat pumps and solar from September 2026
A new UK Government scheme cuts the interest rate on loans for heat pumps, solar and batteries from September 2026. How it works, who qualifies, and how it may sit alongside Home Energy Scotland funding.
Read more →
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10 July 2026
Heat pump vs gas running costs in Scotland: the spark gap, updated monthly
Are heat pumps cheaper to run than gas in Scotland? The spark gap decides. The current Ofgem price-cap numbers for Northern Scotland — refreshed monthly — and what they mean for your heating bill.
Read more →
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6 July 2026
Heat pump grants in Scotland, 2026: what you can actually claim
Up to £7,500 towards a heat pump — £9,000 in rural areas — plus an interest-free loan on top. What Home Energy Scotland funds in 2026, who qualifies, and what we provide for your application.
Read more →
Thinking about going renewable?
We'll survey your property, design the right system, and project-manage every stage of the install.