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63 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
Firstfix Heating is an MCS certified air source installer based in Oxfordshire. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.
Based in Oxfordshire, OX10 0PA
Areas served:
5.0
63 Google reviews
Based on verified Google reviews
claire mccann
So impressed with Chris. Reliable, trustworthy and knowledgeable. He rescued us from a badly installed boiler (another firm), staying in his own time to find a temporary solution to make sure we weren't left in the cold , then returned to resolve the difficulties. Chris really knows what he is doing, talked us through it all, even checking in with us after he had left. We cannot recommend him enough.
Rachel Warren
First fix went above and beyond for our mum - working in horrible weather conditions to ensure our mum had heating - genuinely seemed to care about sorting things out so she wasn’t cold. We really appreciate it Thank you
Michael Ibbott
Chris did a brilliant job on our Air Source Heat pump. The system had been installed when the house was built three years ago. The installer had not done a good job. A combination of this and a faulty heat pump meant that the system would shut down every time the outside temperature went significantly below zero. The original installer came out on several occasions and didn’t resolve it and it would shut down on a regular basis. Our experience of air source heating was not good. A couple of weeks ago at the weekend , when it was minus 8c the system died. We tried calling the original installer who did not have emergency cover. We found Chris through local enquiries. He came out and found that the heat pump was defective. He dealt with the manufacturer and helped get them on the case as the heat pump was still just in warranty. He got that resolved. He spent some time liaising with the manufacturer.He came back out and retuned the system and took the time to explain and show us how to get the best out of the system. Chris has great diagnostic skills and took the time to keep in contact on several occasions to make sure all was well. For the first time in three years we have enjoyed warmth with this system and not felt fobbed off by technicians who would talk at us. Great diagnostic engineer, great service, really nice guy.
Terence Mullins
Had a gas boiler service by Chris at First Fix heating. Great chap. Really knew his stuff with the system. Not only did he do the service, he found a leak in our expansion tank on the hot water system. And also optimised the boiler for us to be more efficient. I cannot recommend First Fix heating and Chris enough. Really excellent work.
James Taylor
Chris responded very quickly to a call for a boiler problem. He guessed on the phone what the problem was and came the next day to fix it, bringing the spare part with him. It was all sorted in about half an hour. I simply can't fault service like that.
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We are MCS‑certified and registered with an approved consumer protection/competent person scheme, which is essential for quality assurance and to access grants like the Boiler Upgrade Scheme (BUS).
We carry out a detailed home assessment, including property type, insulation levels, existing heating system and available outdoor space, to confirm whether a heat pump is a good fit.
We design the system using a heat‑loss calculation for your home, then match the correct kW size and model (for example, air‑source vs ground‑source) so it runs efficiently and reliably.
Our fixed quote clearly lists the heat pump, cylinder, controls, labour, scaffolding (if needed), electrical work and any radiator or pipework upgrades, so you know exactly what you’re paying for.
Yes, as an MCS installer we can confirm your eligibility, apply for the BUS grant (worth up to £7,500) on your behalf and deduct it directly from your quote.
A typical air‑source heat pump installation takes around 2–5 days, and we’ll agree locations for the indoor and outdoor units, manage any planning considerations and keep you informed each day.
After the heat‑loss survey, we’ll advise if any radiators, pipework, electrics or hot‑water cylinder need upgrading so the system can run efficiently at lower flow temperatures.
Modern heat pumps are designed to be quiet and must meet UK noise regulations; we’ll position the unit to minimise any impact on you and your neighbours and comply with local planning rules.
You’ll get manufacturer warranties on the heat pump plus our workmanship guarantee, and we offer ongoing servicing and support to keep your system performing at its best.
We’ll estimate your likely annual running costs and potential savings based on your current fuel type, insulation level and tariffs, using real‑world performance data rather than lab figures.
Boiler Upgrade Scheme
Up to £7,500
off your heat pump installation
This installer handles the full BUS grant application — deducted directly from your quote. No upfront payment needed for the grant amount.
Scheme open until 2028 — limited funding available
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