Mark O sullivan
Mostyn CH8

Rates and services

  • Combi boiler - install, service, repair

  • Heating circulation - radiators, valves, pipes, pump

  • Heating controls - timer, programmer, smart control, TRV, thermostat

  • Hot water - cylinder, booster pump

  • Landlord - CP12 safety certificates, smoke/fire/CO alarms

  • LPG & oil - boiler, fuel tank, OFTEC

  • Powerflush - sludge blockages, system clean, inhibitor

  • System boiler - install, service, repair

  • Underfloor heating

  • Bathroom - shower, bath, toilet, bidet, basin, taps, macerator

  • Kitchen - sink, tap, washing machine, dishwasher, waste disposal, water softener

  • Outside tap

  • Pipework - leak detection, repair, stopcock, installation, water tank

About MOS Heating

We are Mos-Heating, your Gas, Oil and Water installers from Mostyn


Our values are those of a traditional trader, supporting your gas and water installations with professional work. Advice and support remain our first priorities.


Gas, Oil and water installations should always be carried out by a qualified professional because even a small fault can cause considerable damage. Avoid high operating and repair costs and improve the level of security in your household.


Find out how we can save you money while at the same time protecting the environment. Bring your sanitary units up to date while experiencing our friendly, expert advice. Read more about our services and what we can do for you.

Accreditations and Memberships

Prices exclude VAT or callout charges.
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