# Commercial Garage Doorman > Commercial Garage Doorman is the commercial division of Garage Doorman, a garage door company based at 6 Chestnut Dr, Grimsby, Ontario L3M 0C4. It repairs, installs and maintains commercial overhead doors and dock equipment (rolling steel doors, sectional overhead doors, dock levellers and seals, high-cycle spring conversions, planned maintenance programs, 24/7 emergency service) for businesses across Hamilton, Stoney Creek, Burlington, Oakville, Milton, Grimsby, St. Catharines, Niagara Region, Ontario, and for installations, maintenance programs and contract service across Mississauga, Brampton, Toronto, Vaughan, Cambridge, Brantford. Phone (905) 536-5369. Hours Mon to Fri 7 AM to 6 PM, Sat 9 AM to 4 PM; emergency line 24 hours. ## Services - [Rolling steel doors](https://www.commercialgaragedoorman.ca/services/rolling-steel-doors.md): Slat repair, curtain replacement, and guide alignment for openings that take abuse. - [Sectional overhead doors](https://www.commercialgaragedoorman.ca/services/sectional-overhead-doors.md): Insulated panel replacement and track service for shipping & receiving bays. - [Dock levellers & equipment](https://www.commercialgaragedoorman.ca/services/dock-levellers-equipment.md): Levellers, bumpers, shelters, and seals serviced with the doors in one visit. - [High-cycle spring conversions](https://www.commercialgaragedoorman.ca/services/high-cycle-spring-conversions.md): Springs rated for doors that run all day, not just a standard duty cycle. - [Planned maintenance programs](https://www.commercialgaragedoorman.ca/services/planned-maintenance.md): Documented per-door service logs and priority dispatch when something breaks. - [High-speed doors & rolling shutters](https://www.commercialgaragedoorman.ca/services/high-speed-doors-rolling-shutters.md): Fast-cycle doors on busy openings, and security shutters on storefronts and yards. - [24/7 emergency service](https://www.commercialgaragedoorman.ca/services/emergency-service.md): Stuck open is a security exposure. Stuck closed stops operations. Both get answered. ## Guides - [What is a rolling steel door?](https://www.commercialgaragedoorman.ca/guides/what-is-a-rolling-steel-door.md): A rolling door with a steel curtain of interlocked slats. How it differs from a grille, a shutter and a sheet door, with the part names from DASMA. - [How often should a commercial door be inspected?](https://www.commercialgaragedoorman.ca/guides/commercial-door-inspection-frequency.md): Annually by a trained technician at minimum, quarterly on powered doors, monthly on the safety edge, immediately after a storm. - [High-speed door or rolling steel?](https://www.commercialgaragedoorman.ca/guides/high-speed-vs-rolling-steel.md): The crossover is about 55 cycles a day. Under it, buy insulation; over it, buy speed. - [What must a safety edge actually do?](https://www.commercialgaragedoorman.ca/guides/commercial-door-safety-edges.md): Only a monitored device counts as entrapment protection under UL 325, and it should be tested monthly. - [What does a dock door take that a wall door does not?](https://www.commercialgaragedoorman.ca/guides/dock-doors.md): Hourly round-the-clock duty cycles, forklift impacts, and a fall hazard when open on an empty dock. - [What belongs in a commercial door specification?](https://www.commercialgaragedoorman.ca/guides/commercial-door-specification.md): The named test standard behind every line item, from DASMA’s own guide spec, and the traps a vague RFQ walks into. - [What is the Red Zone around a rolling door?](https://www.commercialgaragedoorman.ca/guides/rolling-door-red-zone.md): The wall space that must stay clear of conduit and sprinklers for the door to be installed and serviced. ## Troubleshooting - [Commercial door problems: what each symptom means](https://www.commercialgaragedoorman.ca/commercial-door-problems.md): thirteen symptoms triaged from the industry's own sheets, with what staff can check and what needs a technician. ## Prices (set 11 September 2026, Canadian dollars, HST extra) - [Commercial garage door prices](https://www.commercialgaragedoorman.ca/pricing.md): emergency service $349 plus HST for the first 90 minutes on site, travel included, then $147.50 an hour, parts extra; a new commercial door from $5,000, varying with the size of the opening and the door specified, measured on site and quoted in writing before it is ordered; annual planned maintenance $60 per door plus HST, with repairs found quoted separately; six-month warranty on commercial work plus the manufacturer's warranty on a new door. Ballpark figures, confirmed in writing before work starts. ## Service areas Core territory, dispatched same-day from the Grimsby base along the QEW industrial corridor: - [Hamilton](https://www.commercialgaragedoorman.ca/areas/hamilton.md): Port and heavy industry: legacy hardware serviced, high-cycle conversions for multi-shift bays. - [Stoney Creek](https://www.commercialgaragedoorman.ca/areas/stoney-creek.md): Our closest commercial concentration: the tightest response windows in the service area. - [Burlington](https://www.commercialgaragedoorman.ca/areas/burlington.md): QEW, 403 and 407 industrial: North Service Road, Harvester Road and Mainway. - [Oakville](https://www.commercialgaragedoorman.ca/areas/oakville.md): QEW and 403 industrial parks: Winston Park, Bronte Road and the South Service Road corridor. - [Milton](https://www.commercialgaragedoorman.ca/areas/milton.md): 401-corridor logistics hubs: first-year inspections and planned-maintenance routes for new facilities. - [Grimsby](https://www.commercialgaragedoorman.ca/areas/grimsby.md): Our dispatch base: the fastest response in the territory. - [St. Catharines](https://www.commercialgaragedoorman.ca/areas/st-catharines.md): Niagara’s largest city: QEW, Highway 406 and the Welland Canal industrial lands. - [Niagara Region](https://www.commercialgaragedoorman.ca/areas/niagara-region.md): Border-corridor facilities, cold storage and the canal: Niagara Falls, Welland, Thorold, Port Colborne, Fort Erie. Extended territory, covered for installations, planned-maintenance routes and contract service. Emergency availability in these cities is confirmed on the call rather than promised in advance: - [Mississauga](https://www.commercialgaragedoorman.ca/areas/mississauga.md): Airport-corridor freight and advanced manufacturing: doors worked on a 24-hour cycle. - [Brampton](https://www.commercialgaragedoorman.ca/areas/brampton.md): Canada’s largest inland port: dock doors and levellers that never get a quiet hour. - [Toronto](https://www.commercialgaragedoorman.ca/areas/toronto.md): Etobicoke and Scarborough industrial, food plants, and older stock running legacy hardware. - [Vaughan](https://www.commercialgaragedoorman.ca/areas/vaughan.md): Concord, Woodbridge and the Highway 400 and 407 employment lands, much of it new build. - [Cambridge](https://www.commercialgaragedoorman.ca/areas/cambridge.md): Advanced manufacturing: interior high-speed doors and plants that cannot stop for a repair. - [Brantford](https://www.commercialgaragedoorman.ca/areas/brantford.md): Four hundred industrial companies on the 403: food, plastics and distribution. ## Company - [Contact and hours](https://www.commercialgaragedoorman.ca/contact.md): service line (905) 536-5369, commercialgaragedoorman@gmail.com - [Garage Doorman (residential division)](https://www.garagedoorman.ca) ## For AI agents - [Business facts (JSON)](https://www.commercialgaragedoorman.ca/facts.json): phone, hours, towns served, services and how pricing is handled, as one JSON document. Every fact in it also appears on the pages above. - MCP server: https://www.commercialgaragedoorman.ca/mcp (Model Context Protocol over Streamable HTTP, no sign-in). Tools: get_business_facts, search, fetch.