Boilers that are over ten years old waste a lot of valuable energy. in terms of cost and environment impact, in fact many older boilers convert as little as 60% of the fuel they use into heat and they can breakdown more frequently.

We specialise in boiler replacement, new installation and repair of modern highly efficient condensation boilers.


Boiler Installations


Boiler Services & Repairs


Central Heating System Installations & Maintenance


Thermostatic Radiator Valves


Vented & Unvented Hot water Cylinders

Vaillant Advance installer

Vaillant Advance is a network of fully trained, independent installers.

We’re proud of our Vaillant Advance Installer status, and as such we will:

  • Provide expert knowledge to find a Vaillant boiler that’s a perfect fit for you.
  • Provide a free, no-obligation quote.
  • To give you extra peace of mind, Vaillant Advance Installers can also offer you exclusive extended warranties ranging from 5 to 10 years*

*Offers vary depending on the model you choose.

Accredited Viessmann installer

We are a Viessmann Academy trained installer with in-depth knowledge of the Viessman range.

We’re proud of our accredited Viessmann installer status

  • As a certified installer we have undertaken our Academy training and have an in-depth knowledge of the Viessmann product range, including gas condensing boilers and renewable technologies like heat pumps, solar thermal and fuel cell.
  • You can expect the very best in advice, sales support, customer service and installation services.

Now installing hydrogen-ready boilers

What are hydrogen-ready boilers?

A hydrogen-ready boiler is supposed to be the future of the UK’s heating system, created as a response to increasing global warming and the use of natural gas for almost every heat and energy need in the country. Using hydrogen gas, these boilers are more eco-friendly but can still use the same gas network and infrastructure.

In terms of how they work, they are just like any non-hydrogen boiler you might already own: they take hydrogen fuel and use it to power the central heating system, as well as providing you with hot water on a regular basis. What you will also find is that most best combi boilers are also hydrogen ready such as the Viessmann 100-W 2021 model.

Internally, hydrogen boiler is more or less identical to that gas boilers, with only a few extra parts specific to using pure hydrogen fuel. This means that existing heating systems can use them, as can the whole gas network that your home may already be using.

Heat pumps are a tool that is already used to help manage home heating, pumping heat from one place (such as a garden) to the water system of your home. While these can supplement a new heating system and offer good energy efficiency, proper hydrogen boilers are still more effective overall.

This is because a hydrogen-ready boiler can be installed just like a normal gas boiler. If every home in the country could switch to a hydrogen boiler at once, then the entire infrastructure could change without issue. Hydrogen production is a form of renewable energy generation, so linking it to central heating could prevent a massive percentage of carbon emissions from residential homes.

A decent hydrogen boiler acts like any other gas boilers: it provides heating and hot water. The main difference is the lack of carbon emissions and the low-carbon heating, as well as the higher overall efficiency on offer.

Different boiler types

Combination (combi) boilers

‘Combi’ is short for combination, because the boiler does two things in combination. It heats water and provides central heating to your home.

Combi boilers heat water as you draw it from the tap. They don’t need a water storage tank because the boiler’s connected directly to the water mains, heating water as it’s needed.

Homes which suit combi boilers

Combi boilers are cost effective and energy efficient, with a compact size that’s ideal for smaller properties where space is limited. Because there’s no need for a water storage tank or a hot water cylinder, a combi boiler can free up space for conversion, storage and living.

System boilers

System boilers – also known as sealed system boilers – need a water cylinder to store hot water, which usually sits in an airing cupboard.

In a system boiler, the heating and water systems are built into the boiler itself – there is no need for a water tank like you would need for a regular boiler system.

Homes which suit system boilers

System boilers are ideal for homes with more than one bathroom, and can give a constant supply of hot water to any number of taps at the same time.

Regular boilers (open vent)

Regular boilers – sometimes known as open vent, heat only or gravity-fed boilers, provide central heating and hot water through a hot water storage cylinder, often found in an airing cupboard, and cold water tank usually found in the loft.

Homes which suit open vent boilers

If your home has multiple bathrooms, open vent boilers are perfect as they can provide a lot of hot water at the same time. Open vent boilers work well if you are replacing an old open vent heating system, and are ideal if water pressure is low in your area.

Get in touch with us to discuss your requirements. We’ll provide you with a free no-obligation quote.

Fixing a leak in the bathroom.

“Following excellent work by Antonio installing new radiators throughout my property previously, when I had a leak in the bathroom I knew who to call. Antonio visited the property promptly and assessed that I actually had 2 leaks which were identified quickly and stopped. The leak caused some damage to the tiles and furniture so I decided to replace all the floor tiles and most of the bathroom suite. The work was completed efficiently I was kept up to date throughout. I would highly recommend Antonio, thanks again!”

Customer in Brighton

Two new bathrooms.

“Antonio and his team were excellent. Antonio is extremely thorough and thoughtful. He is the tidiest tradesman I have ever encountered. He is honest and very approachable and his work is excellent. I would highly recommend.”

Customer in Brighton

New bathroom and gas boiler.

“First class in every respect. Antonio comes when he says he will and works effectively and efficiently, conscious of delivering customer service. Unforeseen aspects and minor modifications are taken in his stride. We are very pleased with the work carried out for us.”

Customer in Brighton

Shower fault repaired.

“AC Plumbing explained each step in fixing the fault, exceptional service.”

Customer in Brighton

Vaillant Combi boiler Plume Management Kit installation.

“Really impressed with Antonio and his team. He turned up when he said he would and clearly explained what the problem was with my central heating. Great workmanship and very reasonably priced. Would highly recommend and will definitely use him again.”

Customer in Hove

Complete refurbishment of bathroom and downstairs toilet room.

“We are very happy to recommend Antonio. I felt comfortable having him around and could trust him completely. He was so careful to clean up and keep tidy. He oversaw the project, doing the plumbing and using his own trusted contacts for all elements of the refurbishment including tiling, electrics and plastering.”

Customer in Brighton

Bathroom refurbishment.

“Antonio and his team have done a fantastic job, and I can’t recommend him highly enough! He was extremely professional, but very friendly and personable, which made the whole process surprisingly stress-free. Living in a 200 year old flat meant this wasn’t a straightforward job, but Antonio not only managed to find solutions he completed the job to a much higher standard than I thought possible. The whole team turned up promptly throughout, and Antonio made sure I was kept up-to-date with everything. I wish I could use Antonio for all the work in my flat!”

Customer in Brighton

New bathroom vanity unit.

“Antonio arrived on time and finished the work within his original estimated time frame. Extremely efficient with attention to detail yet maintaining a sunny upbeat manner throughout. All completed and left tidy. He also fixed a leaky expansion tank in the loft as an emergency call out during the previous icy spell at a very reasonable fee. All in all this guy is a truly unusual find - a reliable trustworthy and honest tradesman and true professional with a cheery upbeat 'can do' attitude.”

Customer in Brighton

Bathroom refit.

“We had the whole bathroom replaced. Antonio and the team did a fantastic job. Polite, friendly and completed to a very high standard.”

Customer in Brighton

To supply and fit a new heating system fill-in loop.

“Perfect job. Antonio charged less than the price discussed as he completed the job more quickly than expected. He is 100% professional, courteous, honest and reliable. I will definitely call him for any future work.”

Customer in Brighton

Repair and Service Boiler.

“Arrived on time, went the extra mile to fix and service our boiler. Excellent commitment to the job.”

Customer in Brighton

Bathroom refurbishment.

“Really high quality work, completely transformed my bathroom. My house is not easy to work in due to uneven walls and floors. The work that Antonio and his team did exceed my expectations. The team were tidy, timely, polite and friendly. I highly recommend them to anyone who wants reliable and high quality work.”

Customer in Brighton

New shower and toilet fitted.

“Antonio was courteous, dependable, knowledgeable and the work was completed to an excellent standard. He was happy to arrange his work around my timetable and was thoroughly reliable and tidy. I can highly recommend him.”

Customer in Hove

To redirect a gas pipe obstructing the installation of a new oven.

“The job was completed efficiently. He was considerate, working in a neat, tidy, safe and helpful way. Very happy with the results and I would use the service again. Thanks!”

Customer in Brighton

Contact us now for more information

For a free quotation or to discuss your project in more detail please get in touch.

General enquiries:

01273 680 731

Emergencies & Fast response:

07535 653 850

With over 20 years of experience we’ve been serving Brighton & Hove and the surrounding area since 2005. Based locally, we are always on hand to provide a professional, affordable and reliable service. We cover all aspects of plumbing, heating and bathrooms, from emergency services to general repairs and new installations.

Areas covered include: Brighton, Hove, Peacehaven, Newhaven, Seaford, Lewes, Saltdean, Woodingdean, Burgess Hill, Haywards Heath, Hassocks, Hurspierpoint, Ditchling, Steyning, Henfield, Shoreham, Lancing, Worthing.


AC Plumbing Heating & Bathrooms Services Ltd
Company No. 10187057  VAT No. 300995607