GARAGE DOOR FREQUENTLY ASKED QUESTIONS
Garage door are the exact size as the finished opening size. The garage door industry commonly refers to the width first and height second. For an example a 9’ wide and 7’high opening would require a 9×7 door.
To ensure that door track brackets, operator brackets and other components are secured to the structure of the garage you must prepare the opening using 2×4’ and or 2×6’ securely fastened to the garage door frame flush and square. The concrete floor should be reasonably level in comparison to the door to prevent gaps at the bottom.
Sectional doors require specific amount of headroom to allow for the door to function. Most sectional doors will use 12” radius tracks requiring 12” headroom clearance above the doorjamb. There are many other options available if your headroom is less the 12”. Consult your local dealer.
If a trolley style operator is installed it would require an additional 2” of headroom to allow for the operator rail to be mounted above the door/track assembly. It requires a grounded outlet installed in the ceiling (by others) approximately 10’6” back from the center of the opening for a 7’ door.
If a side mounted jack-shaft operator is being installed it would require 3” above center of spring shaft, it also requires 1”-5” of spring shaft beyond the bearing plate and another 8” form the end of the shaft to the wall. It can be mounted on either side of the opening, and does require a grounded outlet within 6’ of the operator location.
Stewart Overhead Door warrants its workmanship for one (1) year from the date that the installation was completed. This warranty may not apply to mis-use or failure to follow operating instruction, This warranty is void if repair or adjustment is made by any party not specifically authorized by Stewart Overhead Door.
There are two different types of warranty, manufactures and installation. The Lift Master Chain Drive operator comes with a 4-year motor warranty. The Lift Master Belt Drive operator comes with a lifetime motor and belt warranty. Both operators also has a 1-year warranty on all other parts. The Lift Master Residential Jack-shaft operator comes with a 5-year lifetime motor warranty and also has a 5-year warranty on all other parts.
Stewart Overhead Door warrants its labour for ninety (90) days from the date that the installation.
It is possible to paint the garage door. All of our steel garage doors have a baked on finish in specific colours as specified by the manufacturer. If you do paint the door, you must ensure that you follow the manufactures painting instructions.
Yes, your door does require certain maintenance; general rule of thumb, visual inspection monthly and professionally serviced once annually. Refer to your owner’s manual.
Yes, your operator requires certain maintenance; general rule of thumb, visual inspection and testing once per month. Refer to your owner’s manual.
It can be, if the problem is small and the opener still works reliably overall. But if repairs are getting expensive, parts are hard to find, or it’s struggling to lift the door, replacing it usually makes more sense because newer openers are smoother, safer, and easier to maintain.
Your door usually gives you signs before it fails. If you hear new grinding or scraping noises, notice jerky movement, or see visible damage to panels, rollers, or tracks, the system may be wearing unevenly.
Most garage doors last around 15 to 30 years, depending on use and upkeep. If your door is around 15 years old and repairs are becoming frequent, it’s a good time to start planning for a new one before it becomes an emergency.
The opener is getting power, but the door is not moving due to resistance or a mechanical issue. Common causes include a broken spring, a jammed track, a seized roller, or a worn opener gear. Stop running it repeatedly and schedule service if it won’t move normally.
It is usually not safe. A broken spring makes the door extremely heavy and can cause it to drop suddenly. Avoid forcing it; do not use the opener; and call a technician, especially for double- or insulated doors.
Most often, it’s a safety sensor issue or the opener sensing resistance. Check photo eyes for blockage or misalignment, then look for binding, ice at the threshold, or track issues. If it keeps reversing, stop cycling it and book an inspection.
Stop using the door immediately. A crooked door often indicates a cable or track problem and can become unstable. Keep the area clear and call for professional repair.




