Gas safe, plumber, Boiler service, boiler repair, boiler replacement, bathroom fitting, installations
Gas safe, plumber, Boiler service, boiler repair, boiler replacement, bathroom fitting, installations
Chapman Plumbers and Heating Engineers, Boiler servicing Boiler repair and replacement, Powerflushing, Gas engineers
Chapman Plumbers and Heating Engineers, Boiler servicingBoiler repair and replacement, Powerflushing, Gas engineers

Commercial Boiler services


Our commercial plumbers Cover all areas of commercial boiler servicing and gas heating, from boiler installation to repair in schools, offices, and factories. We mainly serve Aldershot, Farnborough, Farnham and Camberley but for slightly larger jobs will cover Hampshire, Surrey, Berkshire and London, we have offices open all working hours to book an appointment immediately. Our engineers are fully uniformed highly professional, discrete and efficient, this will ensure that and maintenance undertaken is hardly noticed. Yet also have enough highly trained commercial engineers to give fast turn around.


Commercial boiler engineers and gas engineers are required anytime the gas carcus installation volume is calculated to be over 0.35m3 in volume of gas. Or where your rated gas input exceeds 70kw as the work must conform to IGEM up10 and bs6644, and are not covered on the domestic ACS course. 

Some times there may be two domestically sized boilers in the same room or flueing on the same wall, it is a rumour these can be worked on by a domestic engineer, however, these would require specific ventilation sizes inline with bs6644 which again is not covered in domestic qualifications, and Two-room sealed boiler terminals together need to be a certain distance away from openings according to IGEM up10, a commercial qualification. Additionally, and most importantly, a domestic meter won't provide enough gas volume to furnish 70KW input of appliances.


We are qualified to work on commercial boilers,  overhead radiant heaters, tube heaters, air heaters, gas boosters, commercial pipe work, safety certificates, water treatment, flue installation and tightness testing and purging.

Working with  ATAG, Broag, BAXI, Buderus, Chaffoteaux & Maury, Worcester, IDEAL, Keston Boilers, Potterton,  Remeha, Saunier Duval, SIME,  Vaillant, and Viessmann to name but a few.


All boiler makes and models are serviced, but with a particular focus on Viessmann products, due to quality and product support. With contacts within many manufacturers and continual CPD events attended, our team are highly placed to rectify any issue you have with your system or to help advise specking a new installation. 

Service contracts are designed for full preventative maintenance ensuring minimum downtime. We leave no stone unturned safeguarding the user from failure. Water treatment analysis and ongoing adjustment assures maximum protection against component deterioration and failure and elongates system efficiency.


In addition to this we also offer efficiency audits in collaberation with our partners.

  • These cover the installation of sart meters and system monitoring to make sure theres no energy wastage during 'shoulder hours'.
  • We also asses your controls and control strategy to ensure that you are only heating the used areas in the most effective way possible, and not unsued areas.
  • System bypassing and balancing is also checked to ensure no wanteted power or heat wastage from poor performing hydronics. 
  • A thermal imaging assesment of plant and building structure to check for heat leakage and draft.
  • System water analysis and maintinance


Commercial Hot Water Systems

Working closely with A.O Smith, the UK market leaders in commercial hot water systems, as well as being trained by various other Manufacturers we are perfectly placed for reactive maintenance, servicing and installation of commercial or industrial hot water systems, including a full design package.

With their new 'BFC direct fired water heater' A.O. Smith now supply the most efficient hot water solution. Also boasting the highest performance to size ratio available, a fantastic solution for all commercial or industrial environments.

A.O. Smiths Drain back solar collectors are a perfect Addition to any Ao Smith Hot water or heating system. The way their units work means that they can be oversized and simply switched off to prevent overheating, this, in turn, gives the highest yield possible.

Special Offers

"Chapman Plumbers & boiler repair service in Aldershot, Farnborough, Farnham, and Fleet."


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