High-performance Vaillant dual-fan heat pump installation in Hertfordshire, designed for larger homes with higher heating demands.

Why Choose an Air Source Heat Pump?

Air source heat pumps absorb heat from the outside air and convert it into energy to heat your home and hot water.

Key Benefits:

  • Lower energy bills with up to 300% efficiency

  • Reduce carbon footprint – renewable energy from the air

  • Compatible with underfloor heating and modern radiators

  • Quiet operation and minimal maintenance

  • Eligible for the Boiler Upgrade Scheme grant (up to £7,500 towards installation)

Why Vaillant?

At Gas Mark1, our preferred manufacturer of ASHP is Vaillant, who deliver the highest quality air source heat pumps on the UK market.

  • Made in the UK – Their aroTHERM plus range is built in Derbyshire, ensuring reliable local support and parts availability

  • Natural refrigerant (R290) – Lower global warming potential and better performance

  • Smart controls – Easy integration with the myVAILLANT app and advanced system controls

  • Quiet Mark certified – Designed for near-silent operation

  • Up to 7-year warranties when installed by approved engineers- us!

The Vaillant aroTHERM plus is compact, highly efficient, and ideal for most UK homes — making it our recommendation for air source heat pump installations.

From first call to final sign-off, we handle everything, starting with a site survey to determine the requirements, to system design and quotation. Our Gas Safe certified installers will fit your Vaillant air source heat pump to the highest standards, with minimal disruption to your home. We will register your system with Vaillant ensuring your guarantee is valid and we will offer ongoing support and servicing to keep your system running efficiently for years to come.

Professionally installed Vaillant heating system with insulated pipework and dual cylinders, designed for energy-efficient home heating in Hertfordshire.
Outdoor Vaillant aroTHERM heat pump installed in a landscaped garden, offering quiet and efficient renewable heating for Hertfordshire homes.