About Us

Canadian Door Doctor & Construction Co. Ltd. is proud to be a family owned and operated company located in Niagara Falls, Ontario. In 1979, Art Dommasch had the opportunity to install doors for a small local manufacturer.  The need for a local door sales and service company was suggested.  Taking a chance and with the support of his family, Canadian Door Doctor was born.  With modest beginnings, we began by establishing customer relationships and great supplier networks.  Over the years, with exceptional customer service and expanding product lines, Art found it necessary to move out of the small warehouse to our present location.  Once again we find ourselves bursting at the seams!

In 2000, a sister company, Niagara Door and Hardware was formed to expand our service to our customers. Products range from architectural hardware, steel doors and frames, washroom partitions and accessories, and access control systems. Call us for any specialty items you may be looking for.

The operation of opening and closing your doors is our business, helping you maintain that is our mission.

More than 40 years of experience in door and dock systems

24/7 Emergency Callout

A full crew of technicians on staff to service commercial, industrial, agricultural and residential customers. Call us for your needs on all makes and models.

Qualified & Insured

We have a licensed electrician on staff, a certified Firedoor Installer and AAADM certified inspectors.







The Dogs of Door Doctor

Every Friday is Doggy Day at Door Doctor! Make sure to stop by our office to visit our furry friends after a long week.

Our Testimonials


Lauren Gasbarini

Installed our Garage door and could not be happier with how everything went. From the assistance on choosing all of the options for the door to the installation. Everything went smoothly and we got our dream door!


Brian Truscott

Suzie responded to our inquiry instantly, and she and Dale were very helpful. Dale explained a better option than I had inquired about, the quote was firm and competitive The installer arrived precisely as booked, and was very pleasant, informative and efficient.


Ralph Bauer

The large spring on the right side of my double door snapped. he door came part way down very crooked and a few rollers were dislodged trapping our car inside.Door doctor acted expediently and sent out Jonas who was awesome.He repaired all of the issues expertly and charged a very reasonable price.


Tony Salivan

Called for service on a mal-functioning door control.  Jonas showed up on schedule, replaced the control under warranty, reprogrammed all the remotes, and answered all my questions.  Very happy.


Melissa D'Uva

We’re so happy to have bought a garage door from and to have worked with Canadian Door Doctor! Dale showed up on time. He patiently explained to us what had to be done in order to update our garage door and what we could expect to happen the day of the installation. He happily showed us all of options and helped us pick a colour that matched best with the colours of our house. He smiled the entire time.


Craig Martin

I am happy with the job they have done with our new garage door. Sales person gave us plenty of options, and was able to quote us on the spot. The install team was fantastic, and the door looks great.


Rick Berketa

My 8"x16" double wide heavy wooden sectional garage door broke a side lifting cable while opening effectively holding my car hostage inside the garage until the door could be repaired. I called and spoke to Sandy who quickly realized my situation. She rearranged their daily work schedule to quickly accommodate me.


Sue Maxwell

I would recommend Canadian Door Doctor to anyone that asks.  I had them do both my business and home.  They are a very knowledgeable company and they did a great job.  Their employees are experienced and polite.  No mess left.  I love my doors and garage door. Thank you Canadian Door Doctor


Jeff Unger

After being told by Home Depot that we would basically need to renovate half of our less-than-ideal garage to allow for a new garage door, we knew there must be a better way to solve this problem. Enter Canadian Door Doctor who was not only able to elegantly come up with a solution for us, but also at a far more affordable price! We are SO glad we went with you!

The Door Doctor You Deserve
What we offer

Our Skills

  • Technical Expertise
  • Responsiveness
  • Experience
  • Emergency Support