2026-04-20 7 min read
There's a specific sound that Mount Dora homeowners dread: a loud bang from the garage, like something heavy fell off a shelf. You check, nothing's on the floor. You hit the opener button. and the door barely moves, or doesn't move at all. That sound is almost always a garage door spring letting go.
Spring failure is one of the most common garage door repairs in Central Florida, and it tends to catch people off guard. One day the door works fine; the next morning you're late for work with your car stuck inside. Here's what you actually need to know. what causes springs to fail, what it costs to fix them, and why this is genuinely not a DIY job.
Garage door springs aren't meant to last forever. A standard residential spring is rated for roughly 10,000 cycles. one cycle being a single open and close. In a household where the garage door is used four to six times a day, that works out to somewhere between seven and twelve years.
But here in Lake County, springs often fail on the shorter end of that range. or earlier. The reason is moisture. Mount Dora's humidity regularly sits above 80 percent in the summer months, and that warm, wet air finds its way into every gap in your garage. When it contacts the cooler metal of a spring at night, condensation forms inside the coils. That trapped moisture accelerates rust, and rust creates weak points along the coil where metal fatigue develops faster than the cycle count would suggest.
For homeowners in neighborhoods like Lakes of Mount Dora. where two- and three-car garages are standard in newer construction. a heavier insulated door puts even more load on the springs, adding stress over time. Older homes near the Historic District or in Sylvan Shores may have extension springs on an original door setup that's overdue for an evaluation.
Understanding how humidity accelerates wear on all your garage door hardware is important context. we cover that in more detail in our guide to humidity and your garage door.
Most modern homes in the Mount Dora area. including newer builds in communities near Apopka and Clermont. use torsion springs. These are mounted on a metal shaft directly above the door opening. They work by twisting to store energy as the door closes, then releasing that energy smoothly when the door opens. Torsion springs are the industry standard for good reason: they last longer, balance the door better, and are generally safer when they fail.
Extension springs are found on older or lighter doors. They run along the sides of the door, parallel to the horizontal tracks, and stretch and contract as the door moves. They're less expensive to replace, but they carry more risk. if an extension spring snaps without a safety cable in place, it can fly across the garage and cause serious damage or injury.
Before calling for service, take a look at your door: if you see a spring mounted horizontally above the door on a bar, you have torsion springs. If you see springs running along the ceiling tracks on either side, you have extension springs.
Here's an honest breakdown for Mount Dora homeowners:
- Torsion spring replacement (one or two springs): most homeowners pay between $200 and $450, depending on spring size, door weight, and whether one or both springs need replacing. - Extension spring replacement: typically $150 to $300 for the pair. - Both springs at once: always the right call. If one spring has failed, the other is usually close behind. Replacing both at once saves a second service call and avoids an unexpected repeat failure.
Prices vary based on the type of spring, the size and weight of your door, and current labor rates. A two-car insulated door is heavier than a single-car door, which means it requires larger springs that cost more. Emergency service (after hours or weekends) typically adds to the total.
One honest note: be cautious of quotes that seem significantly lower than this range. Springs that aren't properly matched to your door's exact weight can fail prematurely and put extra strain on your opener. The right spring isn't necessarily the cheapest spring.
For a broader sense of what garage door service investments are worth over time, our warranty value guide is a useful read before making any decisions.
You don't always get the dramatic bang. Sometimes springs give you warning:
- The door feels heavy when lifted manually. Disconnect the opener and try lifting the door by hand. It should move smoothly and stay open at about waist height. If it's heavy, won't stay open, or feels uneven, your springs are losing tension. - The door moves unevenly or one side sags. This often means one spring has weakened more than the other, causing the door to tilt during operation. - Visible gaps or separation in the spring coils. A healthy torsion spring looks like a tight, uniform coil. Gaps between coils mean it's stretched beyond its limit and is on the verge of failure. - Rust or discoloration on the spring. Surface rust isn't automatically a death sentence, but it does indicate accelerated wear. Check your springs a couple times a year. it takes less than a minute. - Grinding or scraping during operation. This can point to a weakened spring making the opener work harder than it should.
This is worth saying directly: garage door spring replacement is one of the few home repair jobs where the DIY risk is genuinely serious. Springs are under hundreds of pounds of tension. A torsion spring that releases unexpectedly can cause severe injury. This isn't a situation where careful YouTube research makes it safe. it's a job that requires specific tools, training, and experience to do without putting yourself at risk.
Hiring a professional isn't just about convenience. It ensures the replacement spring is correctly sized for your door's exact weight, properly installed, and that the whole system is balanced and safe afterward. A technician will also check cables, drums, and the opener at the same time. because a spring failure that went unnoticed often put extra stress on other components.
Garage Door Mount Dora handles spring replacements throughout the Mount Dora area, including service calls in nearby Eustis, Tavares, and Leesburg. If you're seeing any of the warning signs above, don't wait for the full failure. Reach out to schedule a service visit before your car is stuck inside.
For a full picture of what a professional services inspection covers, it's worth knowing what gets checked during a typical call.
Q: Can I still use my garage door if a spring has broken? A: No. Once a spring breaks, your opener is trying to move the full weight of the door without the mechanical assistance the spring provides. This can burn out the opener motor, damage cables, or cause the door to fall suddenly. Disconnect the opener and don't use the door until the spring is replaced.
Q: Should I replace both springs even if only one broke? A: Almost always, yes. If both springs were installed at the same time. which is typical. they've gone through the same number of cycles and have the same level of wear. The second spring often fails within weeks or months of the first. Replacing both at once is more cost-effective and prevents a repeat service call.
Q: How long does a spring replacement take? A: A professional technician can typically complete a spring replacement in under two hours for a standard residential door. If additional components like cables or drums also need attention, it may take a bit longer, but most jobs are completed in a single visit.