Providing a full service for Gas Central Heating and Plumbing

  • Full central heating

    We can provide a full design and installation service.  If you require a full system or just an extra radiator at ‘Gasmarks’ we can provide either, with the minimum of fuss or disruption to your home.

    All boilers are 'A' rated to comply with part 'L' regulation. 'Gasmarks' recommends Vaillant and Viessmann boilers and is an approved installer for both.

  • Boiler exchanges and upgrades

    If your boiler needs changing we can provide you with the perfect boiler to suit your needs – anything from an open-vented, system, or combination boiler.  We can upgrade your system pipe work to meet the current standards and improve the efficiency of the system.

    All boiler changes, upgrades and full system installations are provided with the correct certification from ‘Gas Safe’ to meet the current building regulations.

    Other boilers such as Worchester, Baxi, Potterton, Ideal and Glow-worm can be installed to suit the customer's specifications and budget.

  • Power flushing

    Is your central heating system not heating properly or is the boiler noisy? Are some radiators hot and some cold? The system may require a power flush and Gasmarks can provide this service.

    The power flushing process is unique.  The flushing machine enables the engineer to clean out a central heating system without removing any radiators.  Chemicals are added to the system to break up the sludge.

    The power flushing machine then removes the dirty water and adds clean fresh water.  Afterwards an inhibitor is added to prolong the system efficiency.  For more information visit:

    Power Flushing from £375.00 + VAT

  • Hot water cylinders and radiators

    We can exchange or install open vented or high pressure hot water cylinders (Mega-flow). Radiators can be exchanged or installed or removed.  Radiator valves can be fitted or exchanged.

  • Servicing and breakdowns

    We can service all types of Natural Gas boilers, fires and water heaters. All boiler repairs come with a 1 year parts and 30 day labour warranty.

  • Cookers and fires

    We can install cookers, hobs, ovens and gas fires.