What counts as a broken garage door panel?
Most modern garage doors are sectional: a stack of horizontal sections joined by hinges, with rollers that ride in the tracks. A 7-foot residential door commonly has four sections. People use "panel" for a whole section, and also for the raised or recessed rectangles stamped into each one, so it helps to be specific when you describe the damage.
Damage comes in a few distinct forms:
- Dents from a basketball, a bumper or hail, the last one a familiar sight on garages in Texas and Colorado
- Creases or buckles, where the section has folded across its width
- Cracks and splits in wood, fiberglass or composite sections
- Rust or rot, most often along the bottom section where water and road salt collect
- Separated end stiles, where hinge screws have pulled out of the section's edges
- Broken glass in a window section
- Impact damage that spans several sections and often bends the track too
Is the damage cosmetic or structural?
The answer decides whether you can keep using the door while you plan the repair. Walk through this checklist from inside and outside the garage:
- Does the door still run straight and quietly? New scraping, popping or a crooked travel path means the damage has reached the rollers or tracks.
- Is the section creased, not just dented? A fold across the width weakens the section the way a bent soda can loses strength.
- Are the hinges and end stiles intact? Look for screws pulled loose, split metal at the section edges and hinges that sit at an angle.
- Is the top section bowed? On doors with openers, the top section takes the pull of the opener arm. If it's bent or cracked around the opener bracket, the door needs a reinforcing strut or a new section.
- Are the tracks straight? Sight down each vertical track. A kink or bend near the impact point is a separate repair.
- Does the door seal when closed? New gaps at the floor or sides point to a racked door.
If the answer to any of the first five questions is bad news, the damage is structural. Stop using the opener and have the door looked at before it binds or jumps the track.
Can you replace just one garage door section?
Often, if the parts still exist. A section replacement needs an exact match on:
- Manufacturer and model, usually printed on a label along the inside edge of a section or on the original paperwork
- Door width and section height
- Design: short or long raised panels, flush, ribbed or carriage-house style
- Window layout, if the section has glass
- Color and surface texture
- Construction: single-layer steel, steel with insulation, or a steel-insulation-steel sandwich, plus the steel gauge
Most residential steel falls between 24 and 28 gauge, and a lower number means thicker steel. Many manufacturers keep popular designs in production for years, but the older the door, the more likely its line has been discontinued. Even when the design matches, an older door's faded paint may not, and a special order can take weeks.
The bottom section is the one replaced most often, since it takes bumper hits and sits in water. It includes the retainer for the bottom weather seal, so a new seal goes on at the same time.
Should you repair the panel or replace the whole door?
Replace the section when:
- One section, or at most two, is damaged
- A matching section is still available
- The rest of the door, springs and tracks are in good shape
- You're happy with the door's style and insulation
Replace the door when:
- The model is discontinued or no matching section exists
- Several sections are damaged, rusted or rotting
- The door is old, uninsulated or already needing frequent repairs
- Sections, labor and repainting together come close to half of what a new door would cost
A new door also lets you upgrade insulation, wind rating or style in the same job. Before deciding, compare repairing versus replacing, check current new-door pricing, and read up on steel, wood and composite trade-offs.
How much does garage door panel replacement cost?
Use these national ballparks for planning; a technician's quote for your door is what counts.
| Section work | Ballpark U.S. price |
|---|---|
| One steel section, standard design, installed | Roughly $300 to $900+ |
| Wood, custom or windowed section | Higher, often well above steel |
| Repainting the door to match | Extra; varies with door size and finish |
| Track straightening or replacement at the same visit | Extra parts and labor |
Price drivers include the door's width (a 16-foot double section costs more than a 9-foot single), brand, insulation thickness, glass, shipping time for special orders, and spring adjustment if the new section weighs more or less than the old one. Pricing for springs, cables and other parts is collected in our repair cost roundup.
Can a dented garage door panel be fixed without replacing it?
Sometimes, for damage that's cosmetic:
- Shallow steel dents can sometimes be eased out from behind with steady pressure, or filled with an auto-body filler, sanded and painted. Filler can crack over time as the door flexes.
- Aluminum dents easily and rarely straightens cleanly, so section replacement is common.
- Small wood cracks and soft spots can be repaired with exterior wood epoxy and repainted, as long as the rot hasn't spread through the section.
- Fiberglass and composite sections can sometimes be patched with a fiberglass repair kit for minor cracks; check the door maker's care instructions first so the repair doesn't affect the warranty.
- A bowed top section can often be stiffened with a reinforcing strut.
Creases don't truly come back out. Once steel has folded, it stays weakened. When the patch is done, follow refinishing steps for each material so the repair blends in.
What should you do right after a panel is damaged?
- Stop using the opener if the door is creased, crooked or scraping. The opener will keep pushing and can bend more sections.
- Look at the rollers and tracks without touching springs or cables.
- Don't hammer the section straight on the door. The sections carry roller loads, and the bottom one anchors the lift cables.
- Photograph everything before it's moved, including the vehicle or debris involved.
- Call your insurer if the damage came from a storm, a falling tree or someone else's car.
- Secure the garage. If the door won't close, lock the house door that opens off the garage and ask for an urgent visit; securing a garage that won't shut walks through the rest.
Why isn't replacing a section a DIY job?
Swapping a section means taking part of the door apart while the springs are still trying to lift it. The bottom section holds the brackets where the lift cables attach under full spring tension, so the springs have to be unwound first.
Upper sections must be supported while hinges come off, and the top section carries the opener bracket. Afterward, the springs often need retensioning for the new weight. It's a job for a technician with winding bars, clamps and a second set of hands.
Who can tell you whether the section is worth saving?
A technician who can identify the door on site. Book one when a section is creased, cracked, split at the hinges or damaged along with the track, or when you just want a straight repair-or-replace answer. The section and parts replacement page explains how matching works, and new door installation covers the alternative. Estimates are free; request one here.
Key takeaways
- A shallow dent is usually cosmetic; a crease, split hinge area or bent track is structural.
- One section can often be replaced if the exact model, design and color are still made.
- Typical U.S. cost for one steel section is roughly $300 to $900 or more installed.
- Multiple damaged sections or a discontinued door usually point to a new door.
- Section replacement involves spring tension and should be done by a technician.