The Vaillant aroTHERM Heat Pump — Installed by Experts
Europe's leading heat pump, AI-designed for your home, installed by a certified engineer, and performance guaranteed in writing.
Not all heat pumps are created equal
There are dozens of manufacturers making hundreds of models. Most homeowners have no way to tell the difference — until the system is in and it's too late. Even the best heat pump underperforms when it's oversized, poorly designed, or running at the wrong flow temperature.
Why Vaillant?
R290 natural refrigerant, ultra-quiet from 29 dB, one of the highest COPs in its class. 150+ years of European engineering.
Why Heat Geek?
We design the entire system around your home using AI, install with certified engineers, monitor digitally, and guarantee performance in writing.
The Result
The manufacturer guarantees the unit. We guarantee the whole system — design, installation, and performance. No one else does that.
Installed right, rated highly
4.8★
Average Rating
Feefo verified
418+
Verified Reviews
Feefo Gold Trusted Service
150+
Years of Vaillant
Europe's largest heating manufacturer
Your install, start to finish
Check your postcode
Get an instant estimate and see your grant amount in 60 seconds.
Get your price
We design the system around your home and confirm your total — grant already subtracted.
We handle everything
Installation by a certified Heat Geek engineer. We apply for the grant on your behalf — you never touch the paperwork.
I've watched the videos on YouTube, I know they know what they're talking about. I trust them. They were trusted before they arrived on site.
Ross – Homeowner, Hampshire
The Heat Geek Guarantee
Your performance, guaranteed in writing
We don't just install a Vaillant and walk away. We guarantee its performance in writing, monitor it digitally, and fix it free if it underperforms. The manufacturer guarantees the unit. We guarantee the result.
Get a free, personalised estimate in seconds
FAQs
Why does Heat Geek use Vaillant?
The aroTHERM is one of the most efficient, quietest, and most reliable heat pumps in the UK. R290 natural refrigerant, 150+ year track record. It's the heat pump we're willing to guarantee.
What about Daikin, Mitsubishi, or Samsung?
Reputable manufacturers, but we specialise in Vaillant. Deep expertise in one platform means better designs, better installations, and better outcomes than trying to be generalists.
How much does a heat pump installation cost?
Typical systems start from around £4,600 after the BUS grant (replacing gas) or £3,100 (replacing oil/LPG). Enter your postcode above for an exact fixed price.
How long does installation take?
Most installations are completed in 2–3 days. Your certified Heat Geek engineer will confirm the timeline before work begins.
What heat pump do you install?
We install the Vaillant aroTHERM plus — R290 natural refrigerant, ultra-quiet, designed and configured specifically for your home.
How quiet is the aroTHERM?
From 29 dB — roughly a whisper. Well within UK planning noise limits, even close to neighbouring properties.
What does "performance guaranteed" mean?
We guarantee your system's performance in writing, monitor it digitally, and fix it free if it underperforms.
Do you handle the BUS grant?
Yes. We apply on your behalf. The grant is subtracted from your price before you pay — no paperwork for you.
Are Heat Geek installers MCS-certified?
If you go through Heat Geek, we will be your primary installer and we are MCS certified and TrustMark registered. We oversee all installations which is why we can provide our performance guarantee. All Heat Geek installers are trained to Heat Geek’s technical and customer service standards.