How does a commercial door service call work?
You call the service line and describe the door: type, what it is doing, and whether the bay is blocked. Blocked bays and doors stuck open are dispatched first. A technician arrives with the common wear parts for rolling steel and sectional doors on the truck, so most repairs are finished in one visit.
New doors are installed as well as repaired: we are an authorized dealer for Amarr, Wayne Dalton, Garaga, C.H.I. and Clopay doors and for Chamberlain and LiftMaster operators, so a replacement is sized to the opening and the duty cycle, with the operator and safety devices commissioned before we leave.
Safety devices are checked on every call against the industry guidance in DASMA Technical Data Sheet 368, Edge Sensors. Every visit ends with a written note of what was found, what was done, and what to watch. If the same door keeps failing, we say so and quote the fix that stops the cycle, whether that is a high-cycle spring conversion or a maintenance program.
Source: DASMA Technical Data Sheet #368, Edge Sensors (PDF). Checked 7 September 2026.Which service do I need for what the door is doing?
| What you are seeing | Service | How urgent |
|---|---|---|
| Door stuck open after hours, or shut with trucks waiting | 24/7 emergency service | Call now |
| Close button must be held for the door to come down | 24/7 emergency service | Same day: the safety system is out |
| Curtain binds, jumps a guide or has bent slats | Rolling steel doors | Book a visit; stop using it if it binds |
| A panel cracked or dented by a forklift or trailer | Sectional overhead doors | Book a visit |
| Second broken spring on the same door this year | High-cycle spring conversion | Plan it before the next break |
| Leveller hesitates under load, seals gone flat | Dock levellers & equipment | Book a visit |
| Fast door reverses, stalls or runs slow | High-speed doors & shutters | Book a visit |
| No record of when any door was last checked | Planned maintenance program | Set it up once |
- Facility and property managers with multiple doors or multiple sites
- Warehousing, distribution and 3PL operators along the QEW and 401
- Manufacturers, fabricators and heavy industry in Hamilton and Niagara
- Fleet yards, dealerships and service centres, fire halls and municipal works depots
- Self-storage, cold storage and agricultural processing
- General contractors and developers building new