Award Winning
Garage Door Services
BOOK ONLINE Contact ONC we have the expertise to repair any door.
Award Winning
Garage Door Services
BOOK ONLINE Contact ONC we have the expertise to repair any door.

Trust The Garage
Door Experts

With over 10 years of experience,
we know the Garage Door Industry

Our Services

Garage Door

ONC offers a wide selection of brands, colours, materials, and styles.  We can help you choose the perfect garage door for your home.
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We carry a large variety of quality garage door openers.  We will find the best option for your needs and guarantee reliability and safety.
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Garage doors rely on springs so when a spring breaks the door is unusable.  We carry high-grade springs for any type of door.
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Garage Door/
Opener Repairs

If you have an urgent repair, we have you covered.  We are available 24/7 for emergency service.  Whatever the problem, our technicians will get your door up and running smoothy. Read More


Cables can rust and corrode over time, especially if they have not been properly maintained.  If you have had a cable snap, you can rely on us to quickly have it replaced.
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Same Day

We understand how frustrating and inconvenient a broken garage door can be.  For this reason, we offer same day, 24/7 service.  We are always there in a timely manner!
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Why Choose
ONC Garage Door Services

Rated #1 for Repairs

Comprehensive services by skilled professional garage door specialists

Customer Satisfaction

Trusted by more than 1,000 customers in Greater Toronto Area

Emergency Service

For after hours emergency service please call
(905) 595-3932

Featured Savings

With savings this good, there is no excuse not to get started!



Use code: 19SPRING

$40 OFF


Use code: 19OPNR

$10 OFF


Use code: 19CABLE

About Us

ONC Garage Door Services is trusted by many in Mississauga, Toronto and the GTA for quality garage doors, garage door installation, servicing, and repairs.  We carry many top-quality brands of doors, parts, and accessories.  Whichever garage door style appeals to you, traditional or modern, we have the door for you! 


Our technicians are very knowledgeable and experienced, as well as being licensed and insured. Whether you require some assistance choosing the absolute best garage door for your home or need a fast repair done, you can depend on ONC.  We can repair anything from broken cables and springs to dented doors, no matter the make or model.  Customer service is our priority, and we guarantee full satisfaction every time.  We do quick, same-day repairs and are proud to offer around the clock, 24/7 emergency service for your convenience. 

Patrick Ramkadar
Patrick Ramkadar
My service was absolutely amazing. So clean and professional. John was installing our garage door and his customer service was impeccable. Katy was the one who kept in touch with me about all of my services also. I’m very pleased with my purchase and will let my friends and family know!
Aamir Mansoor
Aamir Mansoor
John and his team are the best in business! We replaced our 20 year old builder garage door with him in May 2020. His prices were VERY reasonable. Installation was professional and well done. Yesterday we had an incident where the garage door’s chain came off. John came today and replaced it for free under the warranty. Amazing service and highly recommended!
Ajenthan Ramanathan
Ajenthan Ramanathan
I had a garage door opener installed in the summer of 2019. ONC’s office was polite and helpful in providing a very competitive quote and setting up an appointment. The technician was not as polite, but his work was neat and he did a decent job of cleaning up after himself. Upon his inspection, however, he noted to me that he needed to fasten a 2×4 piece of wood above my garage door to install the opener and insisted on charging me an extra $75 for this. I brought this down to $50 but was not impressed with the overcharge. He also ended up drilling a hole through the garage door frame by mistake and he filled it in after I pointed it out to him. The technician also didn’t provide me with an invoice and charged me using his mobile point-of-sale system. Overall, ONC’s service was a mixed bag and I’m not sure I’d use them again. Edit: Disappointing response by the business for a four-star review. Have sent email and attached photo. Also remembered a last-minute overcharge by the technician, which I’ve now included in my review and led me to drop my score to three stars.
Craig Reid
Craig Reid
Broken Spring Fix – I chose ONC because of the positive reviews and it didn’t disappoint. Quick appointment booked, showed up during the given window, he gave great advice and got the job done very quickly. I was on a call at the time, so I’m not sure but it felt like 10 minutes – really it could not have been better – I should have called the day my Spring broke!
Professionalism all the way. I bought a Garage door about a year and a half ago. I was sceptical at the beginning to purchase this door without doing my homework and this was an impulse buy or last-minute decision. I was impressed that John took the time to explain to me in detail exactly what I was getting, with No gimmick, No hassle and the best price offering. People make the company what it is not the brands they carry, and john certainly proved that. I would recommend ONC. John would address all issues and fix them to the best of his abilities. After a year the door showed major defects, such as bubbling of the aluminum and the fading of the trim colours., however, John decided he would install a brand new door and redo the trims at his expense. I don’t blame ONC for the defects I blame the Mfg and I hope that ONC moves away from the mfg and finds a better supplier. I usually don’t give any company a five-star rating, but in this case, john made it all possible. Would I buy another door from them I would say at this time yes because all is good ( but, time will tell)?
Sina Fallahi
Sina Fallahi
Super happy with my recent service. Not only did they fix my broken spring in a quick and professional manner, but they also provided some overdue maintenance on my garage door. Now it operates more quietly than before and they even fixed some alignment issues. Their pricing was also very competitive. Highly recommend these guys.
Bill Stepec
Bill Stepec
Was impressed with the appointment booking process – they couldn’t fit me in due to my highly limited availability (headed out of town), but then called me back after 15 minutes to say a tech had become available. The service technician arrived on-time and was super friendly. Seemed knowledgeable. Billed a reasonable amount considering a fair amount of work needed done. Quite happy with the service I received 🙂
Geoff Newman
Geoff Newman
What a great team ONC is. We ordered two new garage doors and openers from ONC. We received a prompt response, detailed proposal (competitive) and great service and delivery. I wished ever company I dealt with delivered this level of service. Thanks ONC
Call Us Now

(905) 595-3932 - Mississauga
(905) 499-3742 - Milton
(800) 392-4981 - GTA

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Locations We Serve

Richmond Hill

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