Optimum HVAC installs air source heat pumps for homes across East Sussex and Kent. We're MCS certified installers — which means we can help you claim the £7,500 Boiler Upgrade Scheme (BUS) grant available in England, dramatically reducing the upfront cost of switching to renewable heating.
How Air Source Heat Pumps Work
An air source heat pump extracts heat from the outside air — even in cold weather — and uses it to heat your home and hot water. They run on electricity rather than gas or oil, which means lower running costs, lower carbon emissions, and no dependency on fluctuating fossil fuel prices. A well-sized system typically produces 3–4 units of heat for every 1 unit of electricity used.
Running Costs vs Gas & Oil Boilers
Modern air source heat pumps are significantly cheaper to run than oil boilers, and increasingly competitive with gas as electricity tariffs improve. Paired with solar panels or an off-peak tariff like Octopus Cosy or Go, running costs can drop further still. We'll give you an honest picture of expected costs before you commit to anything.
New Builds & Retrofits
Air source heat pumps work well in new builds and are increasingly viable as retrofits — especially in well-insulated homes. We carry out a full survey before any installation to confirm your home is suitable, check radiator sizing, and design a system that will perform properly. We'll tell you honestly if a heat pump isn't the right fit for your property.
Brands We Install
We install heat pumps from all the major manufacturers, including Mitsubishi, Daikin, Vaillant, and Samsung. We'll recommend the right brand and model for your home's size, layout, and budget.
Our Process
Every installation starts with a no-obligation survey. We assess your home, design the system, handle all the paperwork for the BUS grant, and manage the full installation from start to finish. We commission the system, register it with MCS, and make sure you know how to use it before we leave.
What to Expect
Give us a call or fill in the form for a free, no-obligation quote. We'll arrange a convenient time to visit, assess your home, and give you a clear price — no jargon, no pressure, just honest advice. All our work is guaranteed, and we leave your home clean and tidy when we're done. Check our Google reviews to see what our customers in East Sussex and Kent have to say.
Get a Quick Heat Pump Estimate
Why choose Optimum HVAC for heat pump installation
Expert Knowledge
Boilers, heat pumps, and air conditioning - we specialise in all of them so you get the right solution.
Honest Service
Clear quotes, no hidden costs, and genuine advice on what you actually need.
Quality Installation
Every job done to the highest standard. Gas Safe registered and fully qualified.
What our customers say
“Zak at Optimum HVAC has been reliably servicing our home boiler for years. He is consistently punctual, thorough, and conducts himself with the utmost professionalism. It is great to have a trustworthy local company we can count on year after year. I highly recommend their services.”
“Zac has done a number of jobs for us over the past few years,all have been completed very professionally. We’ve no hesitation in recommending him.A most ameniable person too. Clive and Lucie Rishardson”
“Optimum serviced my grandmothers boiler and checked all her radiators, very thorough, professional and friendly. We will be using Optimum from now on.”
Frequently Asked Questions
Get a Quote for Heat Pump Installation
Or call us on +447791666357



