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Claim this listing4.5
47 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
Synergi (sw) Limited is an MCS certified air source installer based in Devon. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.
Based in Devon, EX14 9QD
Areas served:
4.5
47 Google reviews
Based on verified Google reviews
Daniel Gore
Had a gas hob installed by Synergi SW in 2020. Had another plumber check for leaks and they found the hob was leaking at the gas hob elbow. Took it off and found it had been installed cross threaded with water PTFE and had likely been leaking for years. I understand people make mistakes so, Contacted Synergi SW and just requested them to cover the cost. They did not care or offer any apology or cost for correcting their shoddy work, couldn't believe it! Don't trust this company or any work they complete!
Barbara rendell
First class service from Lewis and Ben very efficient always on time and considerat as I am a older lady, a excellent job done and a bit of banter i would highly recommend them.
Lauren Woodham
Seemed like a good company at first. Can't fault the initial customer service and quote. However, my son arrived extremely prematurely (included in my email) so there was a delay in my response and after that radio silence. I sent three follow up emails to book in the works, to two different email addresses, and never heard back.
Simon Drury
Just had Synergi fit a new heating system for my mother in laws property. Competitive quote, team friendly and the install team arrived bang on the time and date they booked! The installation was seamless the guys took pride in what they were doing and the system is working a treat. We didn’t feel sold too like some others and no pushy tactics so glad we used you, would highly recommend. White Cottage
Debbie Fish
Thank you very much to the Synergi (SW) Ltd team. We are always very happy with the service received and for the quick responses to requests for an engineer. Joe in particular deserves a special mention for solving and fixing several of our plumbing issues! Would highly recommend.
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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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