Industrial/Commercial Boiler/HVAC Servicing & Installation throughout the Bay Area, Sacramento and Northern California

We do it all

Our technicians can provide:

  • Replacement parts
  • Emergency visits
  • Ongoing service & maintenance plans
  • Boiler emissions monitoring
  • Reducing fuel costs
  • Boiler rental hire
  • Burner replacement
  • Boiler replacement
  • Controls replacement
  • Quotes/recommendations
  • Connectivity of multiple boiler locations via MODBUS/BMS

Boiler Upgrades that Pay Off

We offer automated systems that can reduce oil/gas consumption by up to 35%, eliminate 90% of maintenance headaches, significantly reduce emissions and pay for themselves in as little as one year. 

These improvements are possible when transitioning away from older linkage systems and antiquated burners to modern systems. However, even fairly modern installations can often see significant fuel and emissions improvements with our upgrades. 

Small & Large

We support all site sizes:

  • Small: 
    • Offices
    • Churches
    • Hotels
    • Breweries
    • Schools
  • Large: 
    • Factories
    • Universities
    • Hospitals
  • Multi-site: 
    • Corporate-wide
    • International

 Featured Product: Autoflame Touchscreen Boiler Controls


Autoflame gives users a wide variety of controls and reporting features for their boilerhouse. 

One Source Engineering has a number of these installations in the field, and can bring you and your team on-site to see them in action. 

Autoflame touchscreen control demo:


Featured Product: Limpsfield Burners

Limpsfield industrial burners are guaranteed with 3% O2 emissions when firing gas, while producing negligible CO, and with a maximized efficiency.

Upgrading your boiler to a Limpsfield burner could save up to 15% on your annual fuel bill. 



Photos of Installations

See some of our great handiwork.


Industrial/Commercial Boilers

Take a look at our reviews of the popular systems available.


Autoflame E-Training Our Autoflame Technical Sales Engineers are continuing to provide free online E

  — For an update on how we’re now carrying out our online training, please click here. — Over the p

Autoflame remains operational during these unprecedented times. We are taking robust measures to ens

As a British Manufacturer, Autoflame Engineering Limited have signed up to the Department for Busine

Technical Training in the snow last week at our USA Training Centre Midwest Combustion Solutions, in

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