CNI Garage Doors
Official verified garage door contractor serving Greer, South Carolina and Greer Metro.
⭐ Verified Yelp Rating & Reputation
💬 Recent Verified Customer Experiences:
"The door was making violent rattling noises every time it opened. CNI Garage Doors diagnosed worn-out steel rollers and misaligned track brackets. Upgraded us to 13-ball sealed nylon rollers and did a full 25-point safety inspection and lubrication. The door now glides up and down so quietly you can barely hear it inside the house. Honest, punctual, and top craftsmanship."
"Accidentally backed into the bottom panel while in a rush and bent the vertical track outward. Feared we would need an entire replacement door, but CNI Garage Doors was honest and showed how reinforcing the bottom strut and straightening the guide rails would restore full function safely. Saved us over $1,200 compared to other quotes. True integrity."
"Our old chain-drive opener was grinding horribly and finally gave out on a Saturday. The technician from CNI Garage Doors walked me through replacement options clearly without any high-pressure upselling. Installed a belt-drive smart opener with battery backup and camera. Programmed both vehicle remotes and helped us configure the smartphone app before leaving. Extremely professional and clean work."
🔧 Core Services & Capabilities in Greer
Elevating curb appeal begins when CNI Garage Doors laser-levels headers and frames low-profile horizontal tracks for an ultra-clean interior look. By banishing a plain utilitarian garage facade occupying 40% of your home's front view without making a statement through Wayne Dalton Model 8300 classic steel doors finished in rich Ultra-Grain walnut wood accents, backed by our White-Glove Installation Standard: perfect reveals, spotless cleanup, and free opener sync.
When business operations suffer from chronic cable derailments on commercial vertical-lift tracks halting warehouse inventory movement, our specialists saw-cut new inductive loop detector lines in concrete pads and calibrate gate sensitivity. Relying on CornellCookson rolling steel fire doors featuring automatic fusible-link thermal drop release governors, protecting your commercial perimeter with tamper-resistant security hardware built like a vault.
By integrating Genie SilentMax 1200 high-density steel-reinforced Kevlar belt drives featuring soft-start/stop logic, CNI Garage Doors installs neoprene acoustic dampening pads between ceiling framing and opener support brackets. This permanently dampens an old chain-drive opener vibrating ceiling joists like a freight train every time someone comes home, leaving your overhead system gliding with fluid quietness verified by on-site decibel testing.
Put an immediate stop to howling seasonal winds rattling thin unreinforced panels and chilling your interior living quarters. our certified crews install heavy-duty aluminum retainer tracks and custom-formed bulb astragal seals, reinforced by Haas Door 2-inch dense polyurethane sandwich panels achieving a high-performance R-17.66 insulation rating, providing Greer homes with long-term climate protection backed by a 5-year weatherseal warranty.
Restoring rapid vehicle access starts when our certified crew the mobile dispatch team at CNI Garage Doors arrives with fully stocked trucks to unbind and re-seat the door assembly. By eliminating a loud metallic boom echoes through your home as a snapped torsion spring locks your garage completely shut with ASTM A229 oil-tempered high-cycle spring replacements matched on-truck to door weight, restoring total vehicle mobility and physical property security in under an hour.