Honestly, it feels like you can't walk down a street in Farnham or Guildford lately without seeing one of those sleek units sitting outside a house. It’s the big talk of the town, and for good reason. If you’ve been wondering why all your neighbours are ditching their old boilers for Air Source Heat Pumps (ASHPs), you’re in the right place. We’ve been installing these all over Surrey, and the shift is real.
The world of home heating is changing fast. We’re moving away from the old, clunky fossil fuel systems and stepping into something a bit smarter and a lot greener. At Heat Eco Building Services, we’re right in the thick of it. Who wants a nasty, inefficient bathroom or a rattling old boiler in there house these days when you could have a system that literally pulls heat out of thin air?
It’s Basically Magic (But Actually Science)
Let’s get the "how it works" bit out of the way first. An air source heat pump doesn't "create" heat the way a gas boiler does by burning stuff. Instead, it works like a fridge but in reverse. It takes the warmth from the outside air, even when it's freezing outside in Bordon, and concentrates it to heat your home and your water.
The efficiency is what really blows people's minds. A standard gas boiler might be 90% efficient if it's modern. An ASHP? You’re looking at 300% to 400% efficiency. That means for every unit of electricity you put in, you get three or four units of heat out. That’s a bit of "cooking magic" right there for your energy bills.
Why Surrey Homeowners are Jumping on the £7,500 Grant
We get asked about the cost a lot. And yeah, the upfront price can look a bit scary compared to a basic boiler swap. But here is the thing: the government actually wants you to do this. Through the Boiler Upgrade Scheme (BUS), you can get a massive £7,500 grant to help cover the cost.
We handle a lot of this for our clients, making sure the paperwork doesn’t become a headache. When you take £7,500 off the top, suddenly that future-proofed heating system looks a whole lot more attractive. It’s a bit of a no-brainer if your old boiler is starting to struggle or if you’re looking to add value to your property in a competitive market like Guildford.
Future-Proofing: The Power Couple of ASHP and Solar

If you really want to go "full eco," you don't just stop at the heat pump. A lot of our customers in the Surrey area are looking at the bigger picture. Imagine powering that highly efficient heat pump with energy you generated yourself on your own roof.
When you pair an ASHP with PV Solar Panels and maybe a battery storage system, you’re basically building a little power station at home. It’s the ultimate way to protect yourself from those wild energy price spikes we’ve all been seeing. We love seeing these systems work together, it’s clean, it’s quiet, and it just works. It’s about making your home the "heart of your home" again, without the stress of huge monthly bills.
The Importance of a Good Wrap (Insulation Matters!)
Now, we have to be real with you. A heat pump is amazing, but it’s only as good as the house it’s sitting in. If your heat is leaking out of the windows and walls like water through a sieve, even the best ASHP will struggle to keep you cozy.

We often use thermal scans (like the one above) to show homeowners where they are losing heat. Before we install a new system, we’ll take a look at your insulation. Sometimes, adding a bit of extra loft insulation or fixing those drafty spots makes a world of difference. We want your system to be perfect, not just "okay."
"But is it noisy?" and Other Myths
We hear this one all the time. "I heard they sound like a plane taking off in the garden." Honestly? That’s old news. Modern units are incredibly quiet. If you’re sitting in your garden in Farnham on a summer evening (maybe near one of our newly installed pools), you’ll barely even notice it’s running.
And the "they don't work in the cold" myth? Well, they use these things in Norway and Sweden where it gets actually cold. A little Surrey frost isn't going to stop them. They are designed to work down to -15°C and beyond. You’ll stay warm, we promise.
Why Heat Eco? Because We’re Local and We Care
There are a lot of big national companies trying to jump on the heat pump bandwagon right now. But we think there’s something to be said for the local touch. We know the houses in Surrey: the old Victorian terraces in Guildford, the detached family homes in Farnham, and the newer builds in Bordon. We know the local water pressure issues and the specific quirks of our local grid.
When you work with us at Heat Eco Building Services, you’re getting a team that’s actually based here. We’re experts in boiler specialization and eco-construction, so we see the whole house, not just the pipes. We’re about friendly, reliable service and prices that are actually fair.
Whether we are installing a stunning new eco-conscious bathroom or a complex heating system, our goal is the same: a happy customer and a home that’s ready for the future.
Let's Chat About Your Home
The results speak for themselves. Lower bills, a smaller carbon footprint, and a home that stays at a lovely, steady temperature all day long. Who doesn't want that?
If you've been thinking about making the switch, or if you're just curious if your house is right for a heat pump, give us a shout. We're always happy to pop over, have a look, and give you some honest, no-nonsense advice. You can reach us on our contact page or just give us a ring. Let’s get your home ready for 2026 and beyond.
Stay warm (and green),
The Heat Eco Team