System Boiler Installation

Designed for homes with higher hot water demand and multiple outlets.

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24-Hour Response Target

When It’s Suitable

Larger homes

Multiple bathrooms

Households with higher usage

System boilers work with a hot water cylinder to provide a more consistent supply.

When It’s Not

Smaller homes

Lower demand properties

Situations where space is limited

Installing a system boiler where it’s not needed can mean:

Higher upfront costs

More complexity than necessary

Benefits

Reliable hot water supply
Reliable hot water supply
Consistent pressure across multiple outlets
Consistent pressure across multiple outlets
Better performance for larger households
Better performance for larger households

Getting It Right

Choosing the wrong system can lead to:

Running out of hot water
Running out of hot water
Pressure issues
Pressure issues
Poor overall performance
Poor overall performance

You’ll be guided based on how your home is actually used. 

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What to Expect

Free survey

Clear recommendation

Professional installation

Setup for long-term reliability

Most installations are completed within 1–2 days depending on the system.

FAQs

Do I need space for a cylinder?

Yes, system boilers require a hot water cylinder, so available space is a factor.

Can I run multiple showers at the same time?

Yes, system boilers are designed to handle higher demand more effectively than combi systems.

Need something that can handle higher demand?

Get clear advice before making a decision.

Speak to an expert

What Our Customers Say

Don't take our word for it. Here's what real homeowners and landlords say about working with us.

I highly recommend ARG Contracts, very professional and friendly. All work was tidied up once finished. I am very pleased with the outcome with my new boiler.
Michelle
Homeowner
I found Richard & his team to be very helpful & they got the works done quickly. The boiler has never worked so well, would definitely use them again.
Zoe
Homeowner
Fantastic service from Rich & his team fitting our new boiler & shower on the same day. No mess was left by the team. Will definitely be using their services again.
Mark
Homeowner
Richard completed extensive plumbing and heating work in our home to an excellent standard, including a full downstairs replumb, new radiators, a relocated and newly fitted boiler, an outside tap, and a fully installed kitchen with integrated appliances. He also created a brand new downstairs cloakroom, going above and beyond to ensure a neat, seamless finish. He was reliable, knowledgeable, hardworking, and took real pride in his work — we would highly recommend him as a trusted, skilled plumber and heating engineer.
Lucy & Craig
Homeowner

Ready to Get Your Boiler Sorted?

Request A Free Quote

Tell us what you need and we'll come back to you within 24 hours with honest advice and a clear price. No obligation, no hard sell.

  • Free, no-obligation quotes
  • Response within 24 hours
  • Site survey arranged at your convenience