(972) 846-9991
Garage Door Rust: Causes, Repair, and Prevention in Dallas, TX
North Texas sees 70–90 humid days each year, and wind‑blown road salt from winter de‑icing quickly oxidizes unprotected steel. Once rust breaches factory paint, it spreads under the coating and can cut a door’s life expectancy in half. Supreme Garage Door Repair offers end‑to‑end garage door rust solutions—from spot treatment and refinishing to full panel or door replacement with modern rust‑resistant materials.
What Causes Rust on Garage Doors?
| Primary Cause | How It Attacks Your Door |
|---|---|
| Moisture & Humidity | Water reacts with iron in steel to form iron oxide (rust). Coastal or humid climates accelerate the process. |
| Road Salt / De‑icers | Chlorides lower the activation energy for corrosion, concentrating on the lower panels. |
| Damaged Paint Film | Chips and scratches expose bare metal; rust creeps under surrounding paint. |
| Galvanic Contact | Mixing dissimilar metals (steel panel + aluminum fastener) sets up an electrolytic cell that promotes corrosion. |
Service Options
1 | Spot Rust Removal & Re‑Coat
Ideal for early‑stage rust (surface flaking < 4 in²). We:
Clean with trisodium phosphate, rinse, and dry.
Wire‑brush and sand to bright metal (SSPC‑SP 3).
Apply zinc‑rich epoxy primer, then two coats of exterior urethane enamel.
Cost: $175–$275 per affected panel.
2 | Bottom‑Panel Replacement
When corrosion has perforated the lower stile or weakened the hem, we swap the entire bottom section with a 20‑ga galvanized steel or aluminum panel, reset the track, and install a new EPDM bottom seal.
Cost: $550–$750 for single doors; includes paint match.
3 | Full Rust‑Resistant Door Upgrade
For widespread rust or doors > 20 years old, replacement is often cheaper long‑term. Options include:
Powder‑Coated Galvanized Steel (G‑60/G‑90)
Aluminum & Glass contemporary series
Faux‑Wood Steel with baked‑on polyester finish
Vinyl‑Clad or Fiberglass for coastal properties
A new rust‑resistant door yields a 194 % ROI at resale, according to the 2024 Cost‑vs‑Value report.
Preventive Maintenance Program
Semi‑annual wash & wax using pH‑neutral soap
Inspect and touch‑up paint chips with matching enamel
Lubricate hinges and exposed hardware to block moisture
Replace bottom seal every 3–5 years to keep water off panels
Clients on our maintenance plan receive a 10 % discount on future rust repairs.
Typical Pricing
| Service | Price Range* |
|---|---|
| Spot rust removal & repaint (per panel) | $175–$275 |
| Bottom‑panel replacement (8–9 ft door) | $550–$750 |
| Full single‑door replacement (galv. steel) | $1,200–$1,900 |
| Aluminum modern door (full‑view) | $2,400–$3,600 |
*Dallas market; written quote provided before work begins.
Why Supreme Garage Door Repair?
Licensed, bonded, insured technicians
On‑truck inventory of galvanized panels & zinc primers for same‑day fixes
Color‑match paint system for seamless repairs
24/7 emergency service if rust has compromised structural integrity
Five‑year workmanship warranty on panel replacements
Schedule Your Free Rust Assessment
Stop corrosion before it destroys your door. Call (972) 846‑9991 or email info@supremegaragedoortx.com for an on‑site inspection anywhere in Dallas, Plano, Frisco, or Richardson.
Garage Door Rust - FAQ
Can I sand and spray‑paint rust myself?
Small surface rust is a DIY option, but without proper prep (SSPC‑SP 3) and zinc primer the corrosion will return quickly. Professional blasting and coating last far longer.
How long will a galvanized steel door resist rust?
G‑90 galvanized doors typically resist red rust for 20–25 years if paint is intact and the door is washed annually.
Are aluminum doors completely rust‑proof?
Aluminum doesn’t rust, but it can oxidize; a factory powder‑coat or anodized finish prevents pitting and keeps the surface looking new.
Does insurance cover rust damage?
Most homeowners policies treat rust as maintenance, not a covered peril. Preventive care is the best way to avoid out‑of‑pocket replacement costs.
Supreme Garage Door Repair – Dallas’s authority on eliminating and preventing garage door rust.
