Everything we have on garage doors — what fails, why, what it costs, and which of it you can handle without calling anyone.

Homes built before about 1940

Pre-war construction — galvanized supply, cast iron drains, cloth-wrapped wiring, ungrounded circuits.

• Extension springs with no cable running through them
• Opener with no photo-eye sensors near the floor
• Wooden door that sticks in humid weather and swings in dry
• Single-car opening retrofitted for an opener it was never built for
• Rot at the bottom of the door jamb
• Detached garage on its own service
• Door rises a foot then stops
• Loud bang from the garage with nothing visibly wrong
• Original hardware, everything is loud

Homes built roughly 1940 to 1980

Post-war and mid-century — copper supply, aging cast iron stacks, 60 to 100 amp panels, first-generation central air.

• Rust along the bottom section
• Chain drive opener grinding
• Door reverses partway down for no reason
• Dents across the west-facing door
• Weather seal at the bottom cracked and hard
• Metal rollers with visible flat spots
• Track pulling away from the jamb
• One spring on a double-width door
• Door closes then immediately opens again

Homes built roughly 1980 to 2000

The polybutylene and aluminum-wiring window, 150 amp panels, R-22 systems and first-cycle architectural shingle.

• Torsion spring at the end of its cycle life
• Frayed cable at the bottom drum
• Grinding or rumble from the spring shaft
• Insulated door with sections separating
• Cracks at the hinge points between sections
• Opener over twenty years old
• Door shudders on the way up
• Remote works, wall button does not
• Slab has heaved and the door no longer seals

Homes built since 2000

PEX on slab, 200 amp service, builder-grade equipment that reaches end of life across a whole street at once.

• Door and opener installed together, both failing together
• Wind-load rating on a newer door
• Smart opener dropping off the network
• Belt drive slipping or whining
• Insulated door on an unconditioned garage
• Photo eyes knocked out of alignment
• Keypad stopped working after a battery change
• Two-car door but only one strut
• New door already noisy

Any age of home

• Springs and hardware rusting faster than expected
• Leaves and seed debris packed in the tracks
• Hail damage the roofer did not mention
• Door rattling hard in straight-line wind
• Dust drifting under the door and along the sides
• Wind loading the door on open ground

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Written by Jaylan Jones. I Like To Exterior Services earns a referral fee when a call connects to a contractor. See our business-model disclosure.