Searching for an ATAG installer in London? DGN GAS installs premium, Dutch-engineered ATAG boilers — offering our clients the UK’s longest manufacturer’s warranty of up to 18 years on eligible models.
If you’re searching for an ATAG installer in London, DGN GAS installs the full ATAG range — premium boilers precision-engineered in Holland and built around ATAG’s stainless-steel iCon heat exchanger. We offer our clients ATAG’s industry-leading warranty of up to 18 years, the longest manufacturer’s guarantee available on a domestic gas boiler in the UK.
ATAG sits firmly in the premium bracket — quiet, highly efficient, and exceptionally well-built. For homeowners who want the best long-term peace of mind, it’s one of the strongest choices on the market.
Compact combi boilers delivering heating and instant hot water from one unit — ideal for flats and family homes without a cylinder. The iC Economiser models add passive flue-gas heat recovery for extra efficiency.
System (iS) and regular/heat-only (iR) boilers that pair with a cylinder for homes with multiple bathrooms or traditional setups. A natural match for a Megaflo cylinder where strong, simultaneous hot water matters.
Unusually, ATAG’s 18-year warranty is available across every model in the range. To qualify for the maximum term, the boiler is supplied with ATAG’s full care pack — a compatible smart control, a water treatment pack and the specified filter — and must be serviced annually by a Gas Safe registered engineer. We’ll confirm the exact cover for your chosen boiler when we quote.
An 18-year warranty is only worth having if the boiler is built to match it. ATAG’s stainless-steel iCon heat exchanger is engineered to retain its efficiency over its lifetime, which is why ATAG can stand behind it for nearly two decades — as long as it’s serviced each year.
As a premium, founder-led company, DGN GAS installs ATAG to the manufacturer’s standard, supplies the correct care pack to unlock the full warranty, and looks after it with annual servicing across West, North West and South West London.
Yes. DGN GAS installs the full ATAG range — iC combi, iS system and iR regular boilers — right across London, and we offer ATAG’s up-to-18-year manufacturer’s warranty on eligible installations.
ATAG’s 18-year warranty is available across the range when the boiler is supplied with the full care pack — a compatible smart control, water treatment pack and the specified filter. Without the care pack the standard warranty is 12 years. In both cases the boiler must be serviced annually by a Gas Safe engineer to keep the cover valid.
ATAG offers the longest manufacturer’s warranty in the UK, with quiet, highly efficient, Dutch-engineered boilers and a stainless-steel heat exchanger built for longevity. If maximum long-term peace of mind is the priority, it’s one of the strongest options available — and we’ll always talk you through how it compares with Vaillant, Worcester Bosch and Baxi for your home.
"One of the best plumbers I’ve met, honest, reliable and gives a good price. Will always come quickly when there is a problem needed to be fixed. DGN GAS are the best."
Speak to us about an ATAG installation and the UK’s longest boiler warranty. London-wide installation.
07813 474638