Commercial Door Installation, Maintenance and Repair in St. Thomas

Superior customer service and exceptional products to keep your automatic doors working smoothly

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For 60 years, Horton Automatics of Ontario has been an industry leader in the world of commercial door repair.  In fact, Horton 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 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 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, 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 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.

Why Choose Horton Automatics of Ontario

Reliable hospital Horton Automatic doors due to ongoing preventative maintenance

Preventative Maintenance

With our industry-leading preventative maintenance agreements we prevent break-downs and save on costs over the life of your door.

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Horton Automatics automatic and revolving doors as advised via consulting services

Consulting Services

We provide consultations on new construction and retrofits. Specializing in Horton Automatics products.

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Horton Automatics truck and office

24/7 Emergency Service

We will have a technician work on your door within 24 hours. In an emergency we will help you after hours.

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Horton Automatics repair main with most industry experience

Most Industry Experience

Our technicians have the most experience based on 60 years of company history and a leading technician training program.

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Our Process

Getting your Automatic Door fixed is as easy as 1-2-3:


Call us 24/7

We answer the phone day and night and have technicians on call 24/7. We schedule a technician within 24 hours. If it’s an emergency then we will service your door even after hours.


Fast Dispatch

Our AAADM certified technician comes and investigates the problem. We assess the door and let you know what needs to be done to quickly return it to its fully functional state.


Reliable Repair

We repair your door on the spot with cost-effective and high quality parts from the inventory in our van. For more complex issues or rare parts, we will schedule a timely follow-up.

Commercial Door Products

We have the greatest product depth and breadth in the industry, with more types of openings than any competitor including innovative technical solutions for niche industries.

Our Commercial Door Services

Horton Automatics 24 hour Emergency Service

24-Hour Emergency Service

We have technicians on call 24/7 and will service your commercial door even after hours.

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Horton Automatics Service Repair

Automatic Door Repair

We service and repair most makes and models of automatic doors and drive thru windows.

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Horton Automatics preventative maintenance

Preventative Maintenance

Save 25% of the lifetime cost of your automatic doors with Preventative Maintenance.

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Horton Automatics commercial door installation

Commercial Door Installation

Commercial and pedestrian doors for new construction and retrofits, with Horton Automatics products.

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So, Call Us Now for Immediate Service

In the meantime, download our eBook with tips for maintenance of your commercial door, or meet some of the clients we have helped to keep the doors in their building running smoothly so that people can easily and safely move in and out. You can stop being frustrated with the delays and high cost of door repairs and instead have complete peace of mind from predictable cost and smooth operation based on quality service performed quickly.

Frequently Asked Questions

  • How do you charge to service a commercial door?

    We charge for travel time, the time spent assessing the situation and performing repairs, and any materials required. If the required repairs are anticipated to be costly then we give you a quote, and ample time to make a decision. If a formal quotation is not required, then we will ask you to approve the work in advance so we can start the work for you immediately! Please note that our services are available 24 hrs/day, however service requirements outside of normal business hours (8:00 am – 5:00 pm Monday to Friday) will be charged at a premium rate.
  • Do you have certified technicians?

    All our technicians are AAADM certified and carry their AAADM cards with them.
  • What areas do you service?

    We service the Ottawa Valley and Southern Ontario from our 3 locations in London, Nepean and Burlington.
  • Which commercial door brands do you service?

    We service most commercial door brands, such as Horton, Dorma, Dor-O-Matic, Hunter, Nabco GyroTech, Record, Assa Abloy (Besam), Stanley, Boon Edam, Ditec (Hunter), Keane Monroe, and TormaxChase/Saino.