Threshold & Floor Seals
Water at the slab line, dust blowing in, or pests sneaking under the door? A threshold seal can help tighten the floor contact where the door meets uneven concrete.
Threshold seals are typically installed on the garage floor to create a raised contact point. They’re especially helpful when the slab is slightly uneven or the driveway slopes toward the door.
- Helps reduce water entry from wind-driven rain and minor pooling
- Improves dust, leaf, and debris control at the floor line
- Pairs well with bottom seals and perimeter weatherstripping
- Good option for garages used as workshops or storage
When a threshold is the right fix
Thresholds work best when the problem is at the slab line—not the sides or top. Common situations include:
- Water entering under the door during storms
- Minor gaps caused by uneven concrete or settling
- Dust, leaves, or pests getting in at the bottom edge
- Garages used for storage where keeping debris out matters
If you also see daylight at the sides or top, you may need weatherstripping & seals around the frame as well.
Installation and fit
- Inspect the slab line and verify where water or debris is entering.
- Clean and prep the floor so the threshold adheres properly.
- Install the threshold and verify the door closes with even contact.
- Check door balance and travel limits so the door seals without binding.
A threshold is part of a full seal strategy. If the door is out of alignment, see Panel & track repair.
FAQs
Will a threshold stop all flooding?
Thresholds can help reduce water entry from wind-driven rain and minor pooling, but they aren’t a substitute for proper drainage or grading. We’ll explain what a threshold can realistically address.
Do I need a new bottom seal too?
Often, yes. Thresholds work best when paired with a properly sized bottom seal so the door compresses evenly.
Can you install thresholds on uneven concrete?
In many cases, yes. The right approach depends on how uneven the slab is and what the door is doing. We’ll review the surface and recommend the most reliable option.
Related services
We serve Chattanooga, Cleveland, and nearby areas within about 30 miles or 1 hour of McDonald, TN.
No surprises on service day
Options + price first, ETA updates by city, and safety checks before we leave.