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Plumbing, heating and cooling done properly.

Boilers, heating and plumbing, alongside heat pumps and air conditioning.

F-Gas certified engineersFixed appointment times
5
125 Google Reviews
Gas Safe Registered
MCS Certified
F-Gas Certified
Fully InsuredBusiness cover
Viessmann
Vaillant
Worcester Bosch
Ideal Heating

Our Services

Explore what we offer across East Sussex and surrounding areas.

Before & After

See the finished difference

Real project photos help customers see the preparation, finish and detail before they ask for a quote.

Boiler Replacement - after
Boiler Replacement - before
Before
After

Boiler Replacement

Areas we serve

Plumbing, Heating & Cooling services across East Sussex and surrounding areas

Including Hastings, St Leonards-on-Sea, Bexhill, Battle, Robertsbridge and Eastbourne, plus nearby towns.

HastingsSt Leonards-on-SeaBexhillBattleRobertsbridgeEastbourneHailsham+ nearby areas
Air Conditioning Installation

01

Air Conditioning Installation

We install air conditioning in Hastings, St Leonards-on-Sea, Bexhill, Battle, Rye and across East Sussex. Every system is designed around the room, not just the unit.

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Air Conditioning Repairs & Servicing

02

Air Conditioning Repairs & Servicing

Air conditioning repair and servicing in East Sussex should identify why performance has dropped before anyone tops up refrigerant or changes parts.

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Heat Pump Installation

03

Heat Pump Installation

Heat pump installation starts with a proper look at your home. Heat loss, insulation, radiator sizes and the hot water cylinder decide whether an air source heat pump will keep it warm.

Learn More

By the numbers

12+
Years experience
125+
Google Reviews
5
Google Reviews rating
42
Places covered

Our Guarantees

Why choose Optimum HVAC

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.

About Us

About Optimum HVAC

Optimum HVAC looks after homes across Hastings, St Leonards, Bexhill, Battle, Rye and the wider East Sussex area.

Learn more →

Client Reviews

What our clients say

“100% would recommend, high quality work, very knowledgeable, friendly (dog friendly which is a huge bonus), post install support was amazing - wouldn't hesitate in using again or to recommend to others.”

P
Paul Cloves

“Zak is knowledgeable, detail oriented and does not just a functional but an aesthetically pleasing AC installation. Very happy with the Zak and the work. Zak always kept us informed and updated about everything going on which was very nice. I highly recommended him.”

S
Satish

“Installed multiple air conditioning units. Zak worked hard in both the design and installation phases to ensure that disruption was at a minimum, and the end result was as unobtrusive as possible. The latter mattered a lot to us, as with a larger install it would be easy for there to be cables all over the place. Zak himself was personable and knowledgeable, and I'm very happy with the end result.”

J
Jim McDonald

“I’ve worked alongside Zac at Optimum HVAC for some time now, carrying out the electrical work on his installations. Zac’s professionalism and reliability really stand out — he’s always organised, communicates clearly and takes real pride in doing things properly. His installations are consistently well planned, tidy and completed to a high standard. From working with him first-hand, I know he’s someone you can rely on to deliver a quality job, and I wouldn’t hesitate to recommend.”

J
Jake Baldwin

“Prompt and professional service with a friendly face”

C
Chris B

“absolutely top rate service, on time , on price , efficient and really good. not a negative word from me ( or my wife ). recommended by Claude and I m delighted with the installation”

J
John Bradney

“Excellent service, above and beyond. Friendly, polite and knowledgeable. Definitely recommend 5☆”

H
HawkEye

“Thoroughly recommend Zac from Optimum. Knowledgeable, helpful and his work shows his experience. Efficient and cleaned up afterwards, takes pride in his work. Gave solid, honest advice (not just the easy route, the quick fix). See photos of my old hot water cylinder and new.”

M
Megan DT

“100% would recommend, high quality work, very knowledgeable, friendly (dog friendly which is a huge bonus), post install support was amazing - wouldn't hesitate in using again or to recommend to others.”

P
Paul Cloves

“Zak is knowledgeable, detail oriented and does not just a functional but an aesthetically pleasing AC installation. Very happy with the Zak and the work. Zak always kept us informed and updated about everything going on which was very nice. I highly recommended him.”

S
Satish

“Installed multiple air conditioning units. Zak worked hard in both the design and installation phases to ensure that disruption was at a minimum, and the end result was as unobtrusive as possible. The latter mattered a lot to us, as with a larger install it would be easy for there to be cables all over the place. Zak himself was personable and knowledgeable, and I'm very happy with the end result.”

J
Jim McDonald

“I’ve worked alongside Zac at Optimum HVAC for some time now, carrying out the electrical work on his installations. Zac’s professionalism and reliability really stand out — he’s always organised, communicates clearly and takes real pride in doing things properly. His installations are consistently well planned, tidy and completed to a high standard. From working with him first-hand, I know he’s someone you can rely on to deliver a quality job, and I wouldn’t hesitate to recommend.”

J
Jake Baldwin

“Prompt and professional service with a friendly face”

C
Chris B

“absolutely top rate service, on time , on price , efficient and really good. not a negative word from me ( or my wife ). recommended by Claude and I m delighted with the installation”

J
John Bradney

“Excellent service, above and beyond. Friendly, polite and knowledgeable. Definitely recommend 5☆”

H
HawkEye

“Thoroughly recommend Zac from Optimum. Knowledgeable, helpful and his work shows his experience. Efficient and cleaned up afterwards, takes pride in his work. Gave solid, honest advice (not just the easy route, the quick fix). See photos of my old hot water cylinder and new.”

M
Megan DT

“Thoroughly recommend Zac from Optimum. Knowledgeable, helpful and his work shows his experience. Efficient and cleaned up afterwards, takes pride in his work. Gave solid, honest advice (not just the easy route, the quick fix). See photos of my old hot water cylinder and new.”

M
Megan DT

“Excellent service, above and beyond. Friendly, polite and knowledgeable. Definitely recommend 5☆”

H
HawkEye

“absolutely top rate service, on time , on price , efficient and really good. not a negative word from me ( or my wife ). recommended by Claude and I m delighted with the installation”

J
John Bradney

“Prompt and professional service with a friendly face”

C
Chris B

“I’ve worked alongside Zac at Optimum HVAC for some time now, carrying out the electrical work on his installations. Zac’s professionalism and reliability really stand out — he’s always organised, communicates clearly and takes real pride in doing things properly. His installations are consistently well planned, tidy and completed to a high standard. From working with him first-hand, I know he’s someone you can rely on to deliver a quality job, and I wouldn’t hesitate to recommend.”

J
Jake Baldwin

“Installed multiple air conditioning units. Zak worked hard in both the design and installation phases to ensure that disruption was at a minimum, and the end result was as unobtrusive as possible. The latter mattered a lot to us, as with a larger install it would be easy for there to be cables all over the place. Zak himself was personable and knowledgeable, and I'm very happy with the end result.”

J
Jim McDonald

“Zak is knowledgeable, detail oriented and does not just a functional but an aesthetically pleasing AC installation. Very happy with the Zak and the work. Zak always kept us informed and updated about everything going on which was very nice. I highly recommended him.”

S
Satish

“100% would recommend, high quality work, very knowledgeable, friendly (dog friendly which is a huge bonus), post install support was amazing - wouldn't hesitate in using again or to recommend to others.”

P
Paul Cloves

“Thoroughly recommend Zac from Optimum. Knowledgeable, helpful and his work shows his experience. Efficient and cleaned up afterwards, takes pride in his work. Gave solid, honest advice (not just the easy route, the quick fix). See photos of my old hot water cylinder and new.”

M
Megan DT

“Excellent service, above and beyond. Friendly, polite and knowledgeable. Definitely recommend 5☆”

H
HawkEye

“absolutely top rate service, on time , on price , efficient and really good. not a negative word from me ( or my wife ). recommended by Claude and I m delighted with the installation”

J
John Bradney

“Prompt and professional service with a friendly face”

C
Chris B

“I’ve worked alongside Zac at Optimum HVAC for some time now, carrying out the electrical work on his installations. Zac’s professionalism and reliability really stand out — he’s always organised, communicates clearly and takes real pride in doing things properly. His installations are consistently well planned, tidy and completed to a high standard. From working with him first-hand, I know he’s someone you can rely on to deliver a quality job, and I wouldn’t hesitate to recommend.”

J
Jake Baldwin

“Installed multiple air conditioning units. Zak worked hard in both the design and installation phases to ensure that disruption was at a minimum, and the end result was as unobtrusive as possible. The latter mattered a lot to us, as with a larger install it would be easy for there to be cables all over the place. Zak himself was personable and knowledgeable, and I'm very happy with the end result.”

J
Jim McDonald

“Zak is knowledgeable, detail oriented and does not just a functional but an aesthetically pleasing AC installation. Very happy with the Zak and the work. Zak always kept us informed and updated about everything going on which was very nice. I highly recommended him.”

S
Satish

“100% would recommend, high quality work, very knowledgeable, friendly (dog friendly which is a huge bonus), post install support was amazing - wouldn't hesitate in using again or to recommend to others.”

P
Paul Cloves

FAQ

Common questions

Contact

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Or call us on 07791 666357

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