Business Details
50+ Years
experience
Emergency
services
Expert Boiler Services in Chicago Since 1956
Williams Stoker & Heating has been a trusted provider of boiler, burner, and heating system services in Chicago since 1956. Our expertise spans steam and hot water boiler installation, repair, and maintenance, supported by a team with over 67 years of combined experience. We prioritize safety, efficiency, and customer satisfaction, using high-quality products and adhering to industry standards. Our customized solutions cater to residential, commercial, and industrial clients, ensuring optimal performance of heating systems. With 24/7 emergency service and a commitment to ongoing maintenance, we help clients avoid costly breakdowns and extend equipment longevity.Our technicians are trained in advanced technologies, including modulating burners and high-efficiency condensing boilers. We serve Chicago's northside and northern suburbs, offering personalized support and transparent communication. Backed by a comprehensive warranty, our work reflects decades of technical mastery and dedication to client needs. From steam boiler installations to water heater repairs, we deliver reliable, energy-efficient solutions tailored to diverse heating requirements. Our legacy of trust and technical excellence continues to make us Chicago's go-to experts for all boiler-related services.
Services
Boiler Installation
Burner Repair
Water Heater Maintenance
Steam Boiler Services
Hydronic Boiler Systems
Pump Installation
Control System Calibration
Emergency Boiler Repair
Condensing Boiler Services
Radiator Repair
Details
- Year established: 1956
Highlights and features
- We have over 67 years of experience in boiler and heating system services.
- We offer customized installation solutions for residential and commercial properties.
- We use high-quality boilers and burners from trusted manufacturers.
- We provide 24/7 emergency service for urgent heating needs.
- We adhere to strict safety standards during all installations and repairs.
What people say
Experienced technicians
Timely service
Reliable repairs
Emergency availability
Long-term trust
Services
Boiler Installation
We specialize in installing steam and hot water boiler systems for residential and commercial properties. Our technicians ensure proper sizing, venting, and integration with existing infrastructure. Modern condensing boilers achieve up to 95-97% efficiency while handling both space heating and domestic hot water needs.
Burner Repair
Our experts diagnose and repair natural gas-fired burners, including modulating systems. We perform combustion analysis, adjust air-fuel ratios, and replace faulty components. Regular maintenance prevents efficiency loss and ensures safe operation across residential and industrial applications.
Water Heater Maintenance
We service tank, tankless, and hybrid water heating systems. Our maintenance includes flushing sediment, checking pressure valves, and inspecting heating elements. Preventative care extends equipment life and maintains consistent hot water supply for homes and businesses.
Boiler Controls
We install and calibrate advanced boiler controls including outdoor reset systems and steam averaging technology. These solutions optimize energy use, improve temperature consistency, and reduce wear through intelligent automation and remote monitoring capabilities.
Pump & Piping
Our pipefitting services cover circulator pumps, condensate systems, and steam distribution networks. We address unbalanced zones, prevent short cycling, and ensure proper delta temperatures to maximize boiler efficiency and system longevity in commercial buildings.
Questions
Do you offer emergency boiler repair services?
Yes, we provide 24/7 emergency service for boiler issues across Chicago and northern suburbs.
What types of boilers do you install?
We install steam boilers, hot water boilers, condensing boilers, and combi systems for residential and commercial properties.
How often should boilers be maintained?
Annual maintenance is recommended for homes, while commercial buildings may require quarterly inspections.
Do you service burners and water heaters too?
Yes, we offer complete heating system services including burners, water heaters, pumps, and control systems.
Are your technicians certified?
Our team has decades of combined experience with specialized training in modern boiler technologies and safety standards.
What areas do you serve?
We primarily serve Chicago's northside and surrounding northern suburbs including Evanston.
Reviews (6)
Cheryl Iverson
Jun 20, 2022
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On a 90+ day, my AC system stopped cooling. I called Williams Stoker and Andrew came that day to diagnose the problem. That eve I had an official estimate to resolve the problem. I accepted the terms and at 8:30 the next business day, as promised, Andrew, Kevin, and Mike arrived and worked efficiently and with good spirits (despite the 98 degree temps) to install the new coil and condenser. They did not leave until they were sure things were working properly. They are a great team. I can't recommend them highly enough.
Jacqueline N.
Apr 28, 2022
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Our condominium association has used Williams Stoker for over 40 years. Their service is always spot-on. I had a chance encounter with two of the younger members of the service team, Jordan and Isaac. They are wonderful examples of the high standards W.S. sets for its on-site technicians. They are polite, clean and exuded confidence they would be able to fix the problems one of our owners was having.
The call took much longer than anticipated; yet, they maintained their good natures. I happened to encounter them as they were finishing their documentation, and was asked the last time our boiler was serviced. When I replied we do it annually, Jordan commented that although it looked a little dirty, it was in fine shape. BTW, when the old boiler was beyond repair, Dittmar engineered a plan that enabled us to purchase the unit we not have.
We understood he wasn't doing that to make a "quick buck"; rather, he was doing it to ensure we wouldn't be without heat. We won't ever choose another service company for our heating needs. Jackie
The call took much longer than anticipated; yet, they maintained their good natures. I happened to encounter them as they were finishing their documentation, and was asked the last time our boiler was serviced. When I replied we do it annually, Jordan commented that although it looked a little dirty, it was in fine shape. BTW, when the old boiler was beyond repair, Dittmar engineered a plan that enabled us to purchase the unit we not have.
We understood he wasn't doing that to make a "quick buck"; rather, he was doing it to ensure we wouldn't be without heat. We won't ever choose another service company for our heating needs. Jackie
B. Jab
Mar 23, 2022
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About three months ago in December our water heater stopped functioning for our apartment. We hired a different Agency called ABC plumbing. They said there was problems with the copper wiring among other things. It cost more than $1000 to fix. Three months later our water heater broke down again. ABC said it was under warranty but when they came out they said there was a problem with a valve and they wanted to charge us $800 to fix it or 2000 to replace the water heater.
Instead we I called William Stoker. They said there was just dust clogging our unit. they fixed it quickly and charged us just $180 for the visit. That's the second time they've helped us and they've done a great job both times for a good price. I find them to be professional and honest!
Instead we I called William Stoker. They said there was just dust clogging our unit. they fixed it quickly and charged us just $180 for the visit. That's the second time they've helped us and they've done a great job both times for a good price. I find them to be professional and honest!
Emily B.
Feb 22, 2022
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I had such a great experience with this company and will be a lifelong customer. My steam boiler stopped working on a Wed night in January (it was really cold out). The place that had maintained it came out, said the tank was cracked and that it would be $14k to install a new one, which they couldn't do until Monday/Tuesday (4 days later). When I called Williams Stoker on Thursday morning Andrew told me he would see what he could do.
He found a unit for me (they called after hours because they knew the distributor) and had it installed by late Friday evening. They were thousands less and had it working in 36 hours. Amazing! The installers Louis and Davis stayed until 8 pm to get it finished that night. Everyone that I worked with through the process was really honest and knowledgable. They did follow-up work later to get a final radiator working at no charge.
This company was recommended to me by friends and I'm honestly so grateful that I found them. When your house is cold suddenly, you really are vulnerable to being taken advantage of. I have so much respect for all the folks at this company for treating me fairly and with a lot of kindness in my hour of need.
He found a unit for me (they called after hours because they knew the distributor) and had it installed by late Friday evening. They were thousands less and had it working in 36 hours. Amazing! The installers Louis and Davis stayed until 8 pm to get it finished that night. Everyone that I worked with through the process was really honest and knowledgable. They did follow-up work later to get a final radiator working at no charge.
This company was recommended to me by friends and I'm honestly so grateful that I found them. When your house is cold suddenly, you really are vulnerable to being taken advantage of. I have so much respect for all the folks at this company for treating me fairly and with a lot of kindness in my hour of need.
Comments E.
Feb 17, 2022
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After buying an expensive boiler from them that never worked well they would not fix it and then refused to honor the warranty or service it. Terrible crooks!
John Danits
Jan 28, 2022
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I purchased four boiler systems for two separate buildings. WOW! They came out right away and did a professional job. PROBLEM! If you need a repair, good luck having them come out. Called and they came out in a couple of weeks, after calling several times. They said they had to come out again to try to repair. Boiler is leaking and banging throughout the building. They now say they can't come out for three weeks. I guess it's "Take the money and run".
