About

Leading The Way

Excellence in Heating and Steam Systems

Johnson Paterson has been a cornerstone of the southern Ontario economy since 1967, excelling in the sales, service, design, installation, and repair of commercial and industrial heating and process steam systems.

We are a family-owned and operated business for 3 generations, specializing in preventative maintenance, emergency repairs, new installations, and retrofits. Our expert team is committed to ensuring your boiler and combustion systems run efficiently and reliably, so you can focus on your core business activities.

In addition to these services, we provide equipment offerings from industry leaders such as Fulton, Gasmaster, Cleaver-Brooks, and Ace Heaters, Penn Separator, as well as Cheminée Lining exhaust solutions.

Our sales force and factory-trained technicians deliver unparalleled solutions tailored to your unique challenges, ensuring peace of mind and optimal performance for your systems.

Vision For Quality

Delivering Superior Products and Outstanding Service

We are dedicated to providing top-quality products, exceptional service, and expert solutions to address challenges related to combustion, heat transfer, and cooling for our valued customers.

We strive to maintain our leadership position in the industry, pursuing growth through a steadfast commitment to quality, customer satisfaction, and active employee involvement. Our goal is to generate a sustainable return for our owners while offering rewarding opportunities for our employees.

Partnering With Industry Leaders

Ensuring Superior Solutions Through Trusted Suppliers

We partner with industry-leading suppliers to ensure our clients receive the highest quality products and services. Our extensive supplier network enables us to provide reliable, innovative, and efficient solutions tailored to meet the unique needs of each project.

Industries Served

Elevating Success With Proven Expertise

We proudly serve a diverse range of industries, ensuring that each sector receives tailored boiler solutions to meet their specific needs and regulatory requirements. Our expertise guarantees reliable and efficient operations across various professional fields.

Client Testimonials

"Thank you very much for the opportunity to share my thoughts regarding Johnson Paterson Inc. We have had the pleasure of working with this outstanding mechanical contractor for the past eight years. As a water treatment company specializing in the supply of water treatment products and services, we have enjoyed an excellent relationship with them.

Johnson Paterson Inc. is a company of great character and integrity. They conduct business ethically, pay their bills on time, and have always treated us fairly. These qualities are increasingly rare today, and I assure you that they remain committed to these principles.

I have also had the pleasure of developing personal friendships with Kevin Kingston and Barry Keough. They are among the finest gentlemen I have ever met, both highly knowledgeable and professional. Waterside Consulting Inc. is proud to be associated with a contractor like Johnson Paterson Inc., and I am confident that any supplier or customer would feel the same."

"Our organization and I have been working with Johnson Paterson Inc. since 1993, during which time they have provided us with excellent service and support for the Cleaver Brooks heating boilers and systems. Their service and sales staff have always treated me with great respect and a high degree of professionalism.

In 2006, Johnson Paterson Inc. was awarded the contract to supply and install a new domestic hot water system for our 27-story commercial office towers located in downtown Toronto. The turnkey project involved the removal of a single large gas-fired boiler, which was replaced by a smaller, high-efficiency boiler in conjunction with two storage tanks. The project was completed on schedule, and the service technicians from Johnson Paterson were a pleasure to work with. We were extremely satisfied with the finished product, and over the past five years, the system has met and exceeded our expectations.

I can confidently recommend Johnson Paterson Inc. as a solid and reliable boiler service contractor and experts in their field."

"We have used Johnson Paterson Inc. to service our boilers at CAMH - Centre for Addiction and Mental Health across multiple locations for many years. Their sales and service technicians have always been extremely professional and knowledgeable. We have purchased various boiler makes and associated equipment, and we have always been extremely satisfied with the end results.

We highly recommend Johnson Paterson Inc.’s services and equipment offerings to others in the Health and Services industry."

"I have had a working relationship with Johnson Paterson Inc. for the past 10 years and consider them not only one of my vendors but also one of my business partners. Their service team consists of some of the most experienced, honest, and professional individuals in the boiler business. Their staff is not only knowledgeable about their work but also courteous and dependable. They respect our tenants while on the job and have consistently met both schedule and budget requirements on all of my projects.

Whether the job is large or small, involving repairs, installations, or service, you can rely on Johnson Paterson Inc. for dependable and positive results.

Anyone seeking additional information is welcome to contact me."

"Johnson Paterson Inc. has been a trusted and reliable service partner across several of my downtown Toronto assets for many years... Throughout this time, their team has consistently delivered high-quality boiler and preventative maintenance services that we rely on to keep our building systems operating safely, efficiently, and reliably.

Their technical knowledge, attention to detail, and proactive approach have helped extend equipment life, improve system efficiency, and minimize unplanned downtime.

What sets Johnson Paterson Inc. apart is their professionalism and consistency. Their service team communicates clearly, works collaboratively with our operations staff, and responds promptly when support is required. This dependable level of service has been a key factor in my continued partnership over the years.

Based on my experience, I appreciate Johnson Paterson Inc. work as a valued long-term service provider and would recommend them to organizations seeking a knowledgeable and reliable boiler service contractor."

"I am writing to express my sincere appreciation for the outstanding service Johnson Paterson Inc. has provided our facility for over 30 years. It is rare to find a partner with such long-standing dedication to quality and professionalism.

Whether they are performing our comprehensive annual maintenance or responding to an urgent service call, their team consistently demonstrates a high level of expertise. Their commitment ensures that our boiler systems operate safely, reliably, and at peak efficiency year after year.

Their hard work and attention to detail provide us with the peace of mind necessary to keep our operations running smoothly. I highly recommend Johnson Paterson Inc. to any organization looking for dependable, high-quality mechanical service."

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