After more than 100 years in business, Jacobs Boiler is a cornerstone in the Chicago heating industry. Now in our fourth generation, we take great pride in servicing Chicago’s business and building owners. We provide emergency service 24/7, 365 days a year. Jacobs Boiler carries the A.S.M.E. “R” stamp for boiler repairs. Inspections are free for repairs or installation of boilers, burners, tanks, piping and much more. When you call our office, a member of the Jacobs family will answer the phone and we will do our best to attend to your heating needs.

Springtime is boiler/water heater cleaning season!

Let Jacobs Boiler clean your boiler and water heater before sediment can settle and harden in your firebox or tank over the summer! Many boiler issues can be diagnosed and quoted for immediate service or repair. Call our office at 773.385.9900 or email us at info@jacobsboiler.com to receive the best rate!

Our standard cleaning typically includes the following:

For steel steam boilers:

• Open fireside of boiler, vacuum combustion chamber. Clean front and rear flue collectors. Punch boiler tubes. Check flue pipe and inspect chimney.
• Check boiler and pipework for leaks. Drain boiler, remove cleanout opening or equivalent washout facilities. Wash boiler internally, removing all accessible scale and sediment. Flush out all operating controls where accessible
• Replace cleanout gaskets where necessary. Close and fill boiler to proper level and chemically treat boiler water.
• Test boiler low water cutoffs and safeties. Check pilot and thermocouple operation as needed. Fire burner and test operation.

For steel hot water boilers:

• Open fireside of boiler, vacuum combustion chamber. Clean front and rear flue collector. Punch boiler tubes. Check flue pipe and inspect chimney.
• Check and lubricate circulating pumps. Drain expansion tank. Check boiler and pipework for leaks. Charge expansion tanks.
• Test boiler low water cutoffs and safeties. Check pilot and thermocouple if applicable. Fire burner and test operation.
• Furnish and install complete set of fireside gaskets properly set and tightened into position.
• Close rear of boiler. Lock and seal as per manufacturer’s recommendation. Close front splinter and outside doors. Lock and seal as per request.
• Test by standard process and refill as required, venting boiler as necessary. Venting of system, if necessary, to be performed by others.

For cast iron steam boilers:

• Open fireside of boiler, vacuum combustion chamber. Clean flue passages. Check flue pipe and inspect chimney.
• Fill boiler to header. Check boiler and pipework for leaks. Drain boiler. Flush boiler and controls where accessible. Close and fill boiler to proper level and chemically treat boiler water.
• Test boiler low water cutoffs and safeties. Check pilot and thermocouple operation if applicable. Fire burner and test operation.

For cast iron hot water boilers:

• Open fireside of boiler, vacuum combustion chamber. Clean flue passages. Check flue pipe and inspect chimney.
• Check and lubricate circulating pumps. Drain expansion tank. Check boiler and pipework for leaks. Charge expansion tank.
• Test boiler low water cutoffs and safeties. Check pilot and thermocouple operation if applicable. Fire burner and test operation.
• Test by standard process and refill as required, venting boiler as necessary. Venting of system, if necessary, to be performed by others.