Our Services

Your local oil boiler specialist..

Brands We Work With..

AGA Esse
Rayburn Stanley
Grant Redfyre
Trianco Worcester
Snug Home Boulter
HRM Grandee
Firebird And more..


As experts within the industry, we specialise in providing oil boiler servicing, repairs, breakdown recovery, installations and commissioning. Mark Oliver Plumbing & Heating provide full warranty on installations of Oil Fired appliances. We are covered by an OFTEC Workmanship Warranty Certificate, you can rest assured that your boiler will be in very safe and reliable hands.

We are an independent service agent for Grant Oil Boilers (Grant Engineering, Devizes) and carry out warranty work, servicing, installations and breakdowns.


Our Service Range..

Supply and Install Bathrooms
Including; Suites & Cloakrooms
Install Showers.
Including; Shower Cubicles, Bath Shower Units
Repairs & Maintenance.
Including; Burst Pipes, Blocked Drains and Toilets Cleared
Hot Water Cylinders.
Including; Mains Water Supply Cylinders (Megaflow / Unvented hot water)
Central Heating Upgrades.
Including; Radiators, Radiator Valves, Central Heating Pumps, Zone Valves

This list of services is not exhaustive, please feel free to contact us should you have a plumbing or heating emergency or project requirement that has not been mentioned here. We can NOT service any type of GAS appliance, including solid fuel (coal / wood) or LPG/Calor.


  • If you are planning to install or replace an oil fired boiler, you need to choose a condensing oil boiler. This is a requirement of Building regulations Approved document part L for the higher standards of energy efficiency.


  • Mark Oliver Plumbing and Heating will provide a free survey of your property, taking into account the location of the new or replacement oil boiler, if radiators need to be upgraded, pipework changed or just replacement thermostatic radiator valves (TRV's).


Require Our Assistance?

If you would like more information on the services we provide, or to request a free quote based on your specific requirements, then feel free to get in touch today. We have an online booking form that may be used to send us details of your enquiry.





Your Local Engineer

With over fifteen years worth of industry expertise along side various qualifications awarded by City & Guilds, OFTEC WRAS and Logic Certification, you can trust us as your local engineer.

Mark Oliver Plumbing & Heating

Areas Covered

We are able to travel across all areas within and around Hampshire

Contact Details

Tel: 01489 876556
Mobile: 07743 386 540
FreePhone: 0800 2980 294

Email Your Enquiry:

Fill Out A Booking Form »