Chicago’s Boiler Service & Installation Experts



Specializing in Steam & Hot Water Boilers Since 1956




Installation, Repair, and Maintenance of Steam & Hot Water Boiler Systems



Installation, Service, and Combustion Analysis of Standard and Modulating Natural Gas Fired Burners

Water Heaters


Maintenance, Service & Repair of Standard and High Efficiency Water Heating Systems

Water Heaters


Installation, Service, and Calibration of Steam & Hydronic Boiler Controls



Pipefitting, Circulating Pumps, Condensate Pumps, Vacuum Pumps

Williams Stoker & Heating Co.-homepage

Williams Stoker & Heating Co. has proudly served Chicago’s residential & commercial boiler and heating needs since 1956. Our focus on making our customers’ satisfaction a top priority has been the cornerstone of the success of our reputation. Additionally, we service most makes & models and provide a comprehensive warranty on all service & installation work. 

For decades, businesses, property management companies, condominiums, and individual homeowners alike have relied on Williams Stoker & Heating Co. to keep their heating and hot water systems running properly.

At Williams Stoker & Heating Co., boilers are our specialty. Additionally, we work on other equipment, such as burners, pumps, controls, and water heaters.

No one beats our heating professionals when it comes to the service, installation, and maintenance of multi-unit systems.

Give us a call today! With over 66 years of experience, we have seen it all and will fix your heating system right the first time. We look forward to the opportunity to earn your business!


Why Choose Williams Stoker Heating?

      • Experienced Technicians: Our team consists of experienced technicians with a deep understanding of different boiler types and installation procedures.
      • Customized Solutions: We offer customized boiler installation solutions tailored to your specific heating needs and space requirements.
      • Quality Products: We use high-quality boilers, pumps, and modulating burners from trusted manufacturers to ensure long-lasting performance.
      • Timely Service: We value your time and strive to complete installations promptly, minimizing any inconvenience to you.
      • Safety First: Safety is our top priority, and we adhere to all industry safety standards and regulations during the installation process.
      • Post-Installation Support: After installation, we provide ongoing support and maintenance services to keep your boiler running smoothly.

At Williams Stoker, we take pride in delivering top-notch boiler installation services. Whether you need a steam boiler with modulating burners or a hot water boiler with condensing HE technology, we’ve got you covered. Contact us today to discuss your heating needs and schedule a professional boiler installation or repair service. Stay warm and comfortable with a reliable boiler system.

Boiler Installation

Boiler installation

Boilers are the backbone of any efficient heating system, providing warmth and comfort in residential and commercial settings. Proper installation is crucial to ensure your boiler’s optimal performance and longevity. 

Our team of expert technicians is equipped with the knowledge and experience to handle various boilers, from steam or hydronic systems in single-family homes to large multi-unit buildings or industrial process applications

 Steam Boilers:

Steam boilers are widely utilized in space heating applications within the city of Chicago. At Williams Stoker, we specialize in the installation of steam boilers, and we understand the complexities involved in performing a proper installation. We pride ourselves on performing installations to manufacturer specifications, ensuring the safe and efficient operation of the system as a whole, and increasing equipment longevity.

Hydronic Boilers (Hot Water):

Hot Water boiler systems are unique in their ability to perform in multiple applications. Modern boilers are capable of up to 95-97% efficiency while handling both domestic hot water and space heating needs. We at Williams Stoker understand the intricacies of engineering and installing these systems. Our goal is to provide quality installation and support throughout the equipment’s life cycle to maximize the longevity and efficiency of the boiler.

Repairs and Service


At Williams Stoker, we understand the importance of maintenance to ensure the safety, efficiency, and reliability of your boiler system. Regular boiler maintenance is a best practice. 

We recommend that homes and small buildings have their equipment maintained annually, while large buildings and process facilities may require monthly or quarterly maintenance.

Water Heaters

Water heaters are essential appliances that provide a steady hot water supply for various applications, from bathing and cleaning to cooking and laundry. With their convenience and reliability, water heaters have become an indispensable part of modern living, and taking care of your water heater is a small investment that yields great returns.

Water heaters come in various types, including tankless (on-demand) heaters, volume water heaters that work with a storage tank, and traditional tank-type water heaters with built-in storage, each offering unique advantages. 

Tankless water heaters provide hot water instantly, while storage tank heaters store and heat water in a tank for later use. With a properly designed and installed set-up, each of these styles can fulfill the needs of a wide variety of applications.