2026-08-30 7 min read A2Z Garage Doors
If you've noticed cold air seeping into your garage or felt a draft near your garage door on a Larkspur winter morning, worn weather stripping and seals are likely the culprit. These simple rubber and foam barriers do heavy lifting year-round, protecting your home from temperature swings, moisture, and pests. When they wear out, your heating system works harder, your energy bills climb, and comfort drops fast. The good news: replacing weather stripping and seals is one of the most cost-effective maintenance moves you can make.
Your garage door's weather stripping sits along the sides, top, and bottom of the frame. The bottom seal, also called a threshold seal, creates a tight barrier between the door and the floor. Together, they block drafts, rain, and debris from entering your garage and the spaces connected to your home.
Most weather stripping is made from rubber or closed-cell foam. These materials compress slightly as the door closes, creating an airtight fit. Over time, Colorado's temperature extremes, UV exposure, and normal wear break down these materials. Cracks form. The seal loses its grip. Cold air flows in. Moisture follows. If you're in Larkspur or nearby Boulder County, you know how fast a bad seal turns into an expensive heating bill.
Watch for these red flags. If you feel a cold draft near the bottom of your garage door on a still day, the bottom seal is failing. Visible cracks, hardening, or gaps in the rubber are also clear signals. Some homeowners notice increased pest activity or water stains on the garage floor after heavy rain. These are all signs the threshold isn't doing its job anymore.
Another tell: inconsistent temperatures in your garage or connected rooms. If your garage stays noticeably colder than it should, or if you're running the heater harder to compensate, seal failure is often the reason. Most quality weather stripping lasts 5 to 7 years before it needs attention, depending on climate stress and door use.
The side and top weather stripping runs along the frame's perimeter. These are typically easier to replace and less critical than the bottom seal. The bottom seal, however, takes the hardest beating. It compresses every single time the door opens and closes. It sits closest to moisture and debris. It's also what stops cold air from pooling on your garage floor.
When you're getting an estimate for seal replacement, ask your technician to inspect both. Sometimes you'll need to replace just the bottom seal. Other times, all the weather stripping around the frame should come out. A professional assessment saves you money by targeting exactly what needs work.
**Need weather stripping & seals in Larkspur today?** Call 720-459-9673. We offer same-day service for seal replacement and inspection across Larkspur and the surrounding area.
The cost of new weather stripping and seals in Larkspur varies based on your door's size and condition. Typically, expect to pay between $150 and $400 for materials and labor. A bottom seal alone usually runs $75 to $200. Full perimeter weather stripping with a new threshold can reach $300 to $500. These are investments that pay for themselves within one or two heating seasons through reduced energy use.
When you schedule a free quote with our team, we'll assess your current seals, measure your door, and give you an exact estimate. No surprises. Many homeowners find that fresh weather stripping is one of the cheapest upgrades they can make to improve garage comfort and home efficiency.
Replacing side and top weather stripping is a straightforward DIY task if you're comfortable with basic tools. You remove the old rubber, clean the frame, and press in new adhesive-backed stripping. It takes an hour or two and costs under $50 in materials.
The bottom seal is trickier. It often requires precise measurement, bracket alignment, and sometimes adjustment of the door's closing force. A poorly installed bottom seal can prevent your door from closing properly or create gaps that defeat the purpose. That's where calling in a pro makes sense. Garage Door Company Larkspur handles seal installation the right way, ensuring your door closes flush every time and your garage stays properly sealed.
If you've dealt with stuck doors or other mechanical issues, read our guide on why garage doors get stuck and what to do. Sometimes seal problems compound other door troubles.
Larkspur sits at elevation with big temperature swings between seasons. Summer heat expands rubber. Winter cold makes it brittle. Spring winds and dust stress the seals. Fall moisture creeps in at the threshold. This climate cycle means your weather stripping works harder here than it might in milder regions.
We recommend a yearly inspection, especially before winter. Catch a failing seal in September, and you avoid months of drafts and energy waste. Check out our complete garage door maintenance guide for a full seasonal checklist that includes seal inspection.
Fresh weather stripping and seals transform how your garage feels and performs. You'll notice warmer winters, lower heating bills, and fewer pests. The investment is small. The payoff is real.
Don't wait until your heating bill spikes or winter drafts become unbearable. Contact us today for a same-day estimate on weather stripping and seal replacement. We'll inspect your door, explain exactly what needs work, and schedule installation at your convenience.
Call 720-459-9673 or reach out online. Garage Door Company Larkspur is here to keep your garage sealed tight and your home comfortable year-round.
How long do garage door weather strips last? Quality weather stripping typically lasts 5 to 7 years in Colorado's climate. UV exposure, temperature swings, and regular compression from door movement accelerate wear. Annual inspections help catch failure early before energy losses mount.
Can I replace weather stripping myself? Side and top weather stripping is DIY-friendly for most homeowners. Bottom seal replacement is more technical because improper installation can affect door operation. Professional installation ensures proper fit, compression, and safety.
What's the difference between weather stripping and a bottom seal? Weather stripping runs along the door frame's sides and top. A bottom seal (threshold) sits at the floor and stops drafts and water from entering below the door. Both work together for full protection.
Will new seals lower my energy bills? Yes. A failing bottom seal lets heated air escape and cold air enter, forcing your heating system to work harder. Fresh seals reduce that energy waste, typically saving 5 to 15 percent on heating costs depending on seal condition and insulation.
How much does weather stripping cost in Larkspur? Bottom seal replacement typically costs $75 to $200. Full perimeter weather stripping with a new threshold ranges from $250 to $500, depending on door size and material choices. We offer free estimates with no obligation.