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St. Thomas, ON

For 60 years, Horton Automatics Ontario has been an industry leader in the world of commercial door repair.  In fact, Horton Automatics Ontario invented our own industry when we invented the sliding automatic door. This means our St. Thomas customers have the best of both worlds: trusted hometown service with the resources of a multinational corporation.

Horton Automatics Ontario serves all customers with the same superior customer service and exceptional products. Just like the drivers at St. Thomas Raceway Dragway, you don’t have time to waste, so our qualified technicians are available 24/7 for all your commercial door repair and maintenance needs.

Automatic Door Solutions in St. Thomas

When your automatic doors need servicing or installation, you can’t afford to wait days or deal with a company that doesn’t have the right parts in stock, which is why St. Thomas businesses call Horton Automatics Ontario for all commercial door repair and installation needs. 

It is our goal to serve our customers throughout southwestern Ontario with our efficient, quality service.  Our AAADM certified technicians always come well prepared with a large selection of spare parts to quickly repair your commercial doors, even offering emergency service after hours. 

We specialize in creating long-term customer partnerships and building the trust necessary to earn your business again and again.

A Commercial Door Malfunction Completely Disrupts Traffic in a Building 

Small town businesses require the trust and support of their local customers and we know you can’t afford to shut down for commercial door repairs. With our expert technicians, superior customer service, and exceptional products, we will keep your business safe and accessible to the customers you rely on each day.  

Automatic Door Installation by our St. Thomas team

Our technicians are committed to delivering the best service in St. Thomas. With Horton Automatics Ontario, you always get a perfect and efficient installation of your commercial automatic doors. We offer many types of installations from slide and swing doors to security doors to drive-thru windows.

Our time-tested three-step installation process will ensure safety and expert service.  

Commercial and Industrial Door Maintenance and Repair 

Investing in the right company to maintain and repair your automatic doors will keep them operating to their full potential. Our team of highly trained technicians at Horton Automatics Ontario is prepared to repair and maintain all types of doors: sliding doors, swinging doors, revolving doors, industrial doors, platform screen doors and specialty medical doors

Should you need commercial door repair services, our skilled technicians will be there 24/7, with a van stocked full of parts, ready to help you open the doors to your business again.


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24/7 Emergency Repair Service

Horton Automatics Ontario has AAADM certified technicians that are available around the clock to provide 24-hour emergency service to ensure the safety and security of your business.

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Commercial Door Installation

Our certified employees are available to serve your needs before, during and after install. Our 3-step process ensures quality product but also proper and safe installation.

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Automatic Door Maintenance

Horton Automatics Ontario not only sells and installs top quality doors, windows and accessories, we also provide support and maintenance on all your automatic doors.

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Commercial Door Repair

Choosing the right partner for your commercial door repair services is just as important as choosing the right automatic door manufacturer. We can help!

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Won-Door Maintenance & Inspections

Keep your commercial doors working efficiently with our automatic door maintenance agreements. Our door maintenance contract will help avoid costly repairs.

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Door Maintenance Contracts

Keep your commercial doors working efficiently with our automatic door maintenance agreements. Our door maintenance contracts will help avoid costly repairs.

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Fire Door Inspections

We make sure your Fire Doors are keeping your employees and customers safe. Fire door inspections are the first step toward fire door compliance. Find out more!

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Manual Door Service & Installation

We help our clients reduce down-time and cost with fast service by the most experienced technicians. As an authorized distributor of various brands, we work with various types of manual doors.

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Service technician was polite, explained the problem and the repair process.

Chuck Fitzgerald

Excellent service, knowledgeable staff.


My automatic sliding door was installed today. Thank you for sending the guys that came to install it. They did an excellent job and they were great professionals. Everything went seamlessly including working with the electrician. Much appreciated!!