Garage Door Gap Repair in Spotswood, NJ — Kustom Seals Every Gap and Keeps What's Outside, Outside
You can see it from inside the garage — a stripe of daylight at the bottom of the closed door. Or along one side where the door does not quite meet the frame. Or a thin line of light at the top where the header seal has pulled away. That light means your garage door is not sealing against its surroundings the way it was designed to, and light is just the beginning of what is getting through.
Where light enters, so does everything else. Hot, humid Spotswood air flows through the gap, forcing your air conditioning to work harder if the garage is conditioned or connected to conditioned space. Rain drives under the door during storms, pooling on the garage floor and reaching whatever you store there. Insects, lizards, and rodents follow the gap into the garage — and from the garage into your home. Dust, pollen, sand, and leaves blow through the opening with every breeze. And during a hurricane, even small gaps around the door allow wind penetration that increases pressure inside the garage, potentially leading to structural failure.
A gap around your garage door is not a minor annoyance. In Spotswood's climate, it is an energy drain, a pest entry point, a water intrusion pathway, and a weakness in your home's environmental envelope.
Kustom is the team Spotswood homeowners call to seal every gap — bottom, sides, top, and between panels. We identify where the gap is, determine what is causing it, and apply the right solution — seal replacement, threshold installation, track adjustment, or system correction — so the door meets its surroundings the way it was built to.
If you can see daylight under your garage door, call (888) 670-9331. Kustom makes it disappear.
The most obvious sign. If you can see daylight between the closed door and the floor, the side jambs, or the header, the door is not sealing. The amount of light indicates the size of the gap — a thin line suggests a minor seal failure, a wide band suggests a more significant issue with door position, floor evenness, or component failure.
Standing in a closed garage, you should not feel moving air from the door direction. If you feel a draft — particularly noticeable near the bottom or along one side — air is flowing through a gap. In Spotswood's climate, that draft is hot, humid outdoor air exchanging with whatever conditioned or semi-conditioned air is inside.
Water pooling inside the garage after rain — particularly at the door's threshold area or along one side — indicates a gap through which rain is entering. Wind-driven rain during storms penetrates even small gaps with significant volume. The water damages stored items, promotes mold growth, and can deteriorate the garage floor coating.
Spotswood's year-round warm climate means year-round pest pressure. Cockroaches, ants, spiders, lizards, snakes, and rodents all exploit gaps to enter the garage. A gap of half an inch at the bottom of a garage door is a highway for insects and a manageable squeeze for lizards and mice. If you are finding pests in your garage regularly, the door's seal is the likely entry point.
A garage that accumulates dust, leaves, pollen, and debris faster than makes sense has a gap admitting them. The gap does not need to be large — airflow through even a small opening carries particulate matter into the space with every breeze.
If your garage is conditioned, connects to conditioned living space, or houses a water heater or HVAC equipment, gaps around the door allow thermal exchange that increases energy consumption. The garage becomes harder to cool, the adjacent rooms feel warmer, and the HVAC system runs longer.
A properly sealed garage door provides meaningful sound attenuation. Gaps allow sound transmission that a sealed door would block. If street noise, neighbor activity, or traffic sound is noticeably louder in the garage than expected, the door's perimeter seal may be compromised.
Click here to Call (888) 670-9331The most common gap location and the one with the most potential causes.
Energy Loss in a Cooling-Dominated Climate: Spotswood homeowners spend significantly more on cooling than heating. Every gap around the garage door allows hot, humid outdoor air to enter. The energy cost can be $100 to $300 or more annually.
Pest Entry — Year-Round Bug and Reptile Pressure: Spotswood does not have a winter that drives pests into dormancy. Insects, lizards, and rodents are active twelve months a year and exploit every entry point.
Rain and Humidity Intrusion: Gaps allow wind-driven rain to enter during storms. Even without rain, humid air promotes mold growth on stored items inside the garage.
Hurricane Wind Penetration: Gaps allow wind to pressurize the garage interior during a storm, increasing the uplift force on the roof. Proper sealing reduces this risk.
Sand, Pollen, and Dust Infiltration: Year-round particulate matter accumulates in the garage through even small openings, coating vehicles and tools.
Click here to Call (888) 670-9331Bottom Seal Replacement — Rubber, Vinyl, and Threshold Systems: We replace worn bottom seals with quality replacements matched to your retainer and floor profile. This eliminates the most common gap location.
Threshold Seal Installation — For Uneven Floors: When no bottom seal can compensate for an uneven floor, we install a raised threshold strip adhered to the floor for a consistent contact surface.
Side Weatherstripping and Header Seal Replacement: We replace deteriorated vertical and top seals to restore the full perimeter barrier.
Panel Seal and Hinge Gasket Replacement: We install gaskets at hinge points to reduce air and light leakage between door sections.
Track and System Adjustment: We adjust track position, recalibrate opener limits, and correct spring tension to ensure the door sits centered and flush in the opening.
Comprehensive Perimeter Weathersealing: We provide a single-visit service that addresses every gap at the bottom, sides, header, and panel joints.
For level floors with standard gaps: standard rubber or bulb seal. For uneven floors: threshold seal or dual-system. For maximum pest and water protection: dual-system. For sloped driveways: threshold seal. Kustom evaluates your specific floor condition and recommends the system that will seal your door effectively.
We inspect the complete perimeter from inside and outside, measuring dimensions and identifying every location where the seal is compromised.
We determine the cause — whether it's a worn seal, floor settling, or track misalignment. The cause determines the solution.
We present findings and a plan to seal the gaps permanently with clear options and pricing for your approval.
We execute the repair: installing new seals, adjusting tracks, calibrating limits, or installing thresholds to address the root cause.
We perform daylight and draft tests to confirm the door engages the floor, frame, and header consistently across the full width.
Single-Car, Two-Car, and Three-Car Doors: We seal doors of every residential size, paying special attention to floor variation across wide 16 or 18-foot spans.
Insulated Doors: Perimeter sealing completes the thermal envelope, ensuring your insulated door actually performs as designed.
Older Homes with Settling: We specify specialized seal systems for older Spotswood homes where time has introduced floor slopes and frame shifts.
New Construction: We upgrade builder-grade seals that are often undersized or inadequate for the local climate.
Warehouse and Industrial: Climate management and pest control for food storage or manufacturing facilities that require fully sealed perimeters.
Retail and Food Service: Meeting health code requirements for pest exclusion with fully sealed roll-up doors.
Storage Facilities: Protecting tenant property across multiple units from water, pests, and dust intrusion.
| Service Category | Cost Range |
|---|---|
| Bottom Seal Replacement | $75 to $200 |
| Threshold Seal Installation | $100 to $275 |
| Side & Header Weatherstripping | $75 to $200 | $50 to $150 |
| Comprehensive Perimeter Sealing | $200 to $500 |
| Track & System Adjustments | $75 to $250 |
Gaps around a garage door in Spotswood can cost $100 to $300 or more annually in increased cooling costs. A comprehensive perimeter sealing at $200 to $500 can pay for itself in one to two cooling seasons by completing your home's environmental envelope.
Click here to Call (888) 670-9331Complete Gap Diagnosis: We don't just replace the bottom seal. We inspect the entire perimeter to find every cause at every location.
The Right Seal System: Whether it's an uneven floor or a sloped driveway, we match the seal approach to your specific environmental conditions.
System Corrections: If tracks or limits are causing the gap, we fix the system problem—not just the seal—to prevent recurrence.
Spotswood-Specific Solutions: Our recommendations address local pressures: pests, rain, heat, humidity, and hurricane vulnerability.
Upfront Pricing and Warranty: You know the price before we start, and our weathersealing work is backed by our full warranty.
Kustom provides garage door gap repair throughout every neighborhood in Spotswood and the greater metro area. Call (888) 670-9331 to confirm coverage.
That stripe of daylight under your garage door is an invitation to heat, humidity, rain, insects, lizards, and rodents. Kustom seals every location and addresses every cause — from worn seals to floor settling.
One visit, the right seal systems, and a verification that confirms no daylight, no draft, no pathway for anything that belongs outside. Call (888) 670-9331 today.
Click here to Call (888) 670-9331