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Doors that open a few hundred times a day.
Sectional overhead and rolling steel doors for warehouses, shops and fleet buildings, the operators that drive them, and the upkeep that keeps every bay working.
What we install
- Sectional overhead doorsSteel or aluminum, insulated or not, with glass where a bay needs daylight.
- Rolling steelService doors and counter shutters.
- OperatorsJackshaft, trolley and hoist, sized to how often the door runs. LiftMaster is our opener line.
- Access and safetyTimers, loop detectors, photo-eyes and interlocks, as the site needs.
For property managers
One call for every building you look after.
- A commercial door does in a month what a house door does in a year.
- We check balance and travel, and replace worn parts before they take a bay out of service.
- You get a record of what was done, door by door.
- Several buildings? One call covers all of them.
Door down and a bay out of service?
Call (425) 882-01777 a.m. to 4 p.m., Monday to Friday. Outside those hours, email office@nationaldoor.net.
Who we work with, and where.
General contractors on new build and tenant improvement, property managers, facility and fleet operators, and owners who need one door fixed today.
- ClopayAdvanced Authorized Dealer
- C.H.I. Overhead DoorsResidential and commercial sectional doors
- AmarrResidential and commercial sectional
- MidlandCommercial and industrial doors
Want someone to look at a site? Call the shop, or send a request.