Skylight Window Leak Repair and Resealing

Skylight leaks can cause devastating damage to your home's interior, including costly water damage, dangerous mold growth, structural deterioration, and ruined furnishings if not addressed immediately and properly. At Pasadena Premier Windows, we specialize in comprehensive skylight window leak repair and resealing services designed to completely stop water infiltration and restore your skylights to optimal, watertight condition. We provide thorough, effective repair and resealing solutions that fully protect your home from moisture damage while ensuring your skylights continue operating safely and efficiently for years to come.


We fully understand how critically important it is to maintain your skylights in perfect condition for both your family's comfort and safety, as well as your home's structural integrity and value. Our skilled technicians utilize advanced diagnostic techniques and proven repair methods to accurately locate even the smallest leaks, expertly repair all damaged areas, and apply premium-grade, weather-resistant seals that provide long-lasting protection against the elements.


If your skylight is currently leaking, showing signs of seal deterioration, or displaying water stains around the frame, selecting the right professional repair service is absolutely crucial for preventing further damage and ensuring lasting results. We'll explain exactly what makes our systematic approach to skylight leak repair so reliable and effective, and why discerning homeowners consistently trust us for all their critical window and skylight repair needs.

Our Skylight Window Leak Repair Services

We focus on fixing leaks with precise methods that address the root cause. Our work includes fixing specific leak spots, replacing worn-out seals or flashing, and adding strong waterproof layers. This approach prevents further water damage.

Targeted Leak Repairs

We carefully inspect the skylight to find the exact place where water enters. Using specialized tools, we clean and dry the area to prepare it for repair. Then, we seal cracks or gaps with weatherproof materials designed to last.


This method stops the leak without removing the skylight completely. It saves time and reduces the chance of new damage during repairs. We always test the repair by simulating rain to make sure the leak is fixed.

Replacement of Damaged Seals or Flashing

Old seals can crack or shrink, and flashing may become loose or corroded. We remove these damaged parts and fit new ones that match the skylight’s type. Proper installation is crucial to avoid future leaks.


We use durable sealants and metal flashing materials resistant to sun, rain, and temperature changes. This ensures a tight, long-lasting barrier between the skylight and roof surfaces. Our team follows the manufacturer’s standards for the best results.

Waterproofing Measures

Beyond repairs and replacements, we add extra waterproof layers around the skylight. This includes water-resistant membranes and sealants that protect against heavy rain and wind-driven moisture.


We carefully apply these materials to all joints and seams. This strengthens the skylight’s defense against water intrusion. These measures reduce the risk of future leaks and increase the lifespan of your skylight installation.

Our Skylight Resealing Solutions


We focus on using the right methods and materials to stop leaks and protect your skylights for years. Our approach includes choosing the best sealants and applying proven techniques to ensure strong, lasting seals.

Types of Resealing Methods


We use several resealing methods based on the skylight's condition and type. The most common include silicone sealing, polyurethane application, and butyl tape installation.


Silicone sealing is flexible and waterproof, ideal for gaps and joints. Polyurethane provides a tough, durable barrier, especially where movement happens. Butyl tape offers an easy fix for minor leaks by creating a sticky, airtight bond. Each method targets specific issues like cracked seals or worn edges. We inspect the skylight closely to pick the best option that fits the damage and environment.


High-Performance Sealant Applications


We rely on high-performance sealants for strong, weatherproof seals. These sealants resist moisture, UV rays, and temperature changes to prevent future leaks.


Our team carefully cleans the area before applying sealant. This step ensures the material sticks well and forms a tight seal. We also use tools to smooth the sealant, stopping water from pooling or slipping in. Using these sealants correctly extends your skylight’s life and keeps your home dry. We choose brands that meet industry standards for quality and durability.


Long-Term Protection Strategies


Protecting skylights long-term means more than just resealing. We recommend regular inspections to catch early signs of wear or damage. We also suggest routine cleaning to remove dirt and debris that can wear down seals. Installing protective flashing or covers can shield skylights from harsh weather.


These steps, combined with quality resealing, reduce repair needs and improve skylight performance over time. We help set up a maintenance plan based on your skylight type and location.


Common Causes of Skylight Leaks

Skylight leaks happen for several reasons. One of the main causes is improper installation. If the skylight is not sealed correctly when it is put in, water can easily get through the gaps.


Another common cause is wear and tear. Over time, the seals and flashing around the skylight can crack or break down. This creates openings for water to leak inside.


Debris buildup is also a big problem. Leaves and dirt can clog the drainage area around the skylight. When water can’t drain properly, it starts to pool and seep in.


We often see leaks caused by roof damage near the skylight. Broken or missing shingles let water into the roof, which then enters the skylight area.


Sometimes, condensation inside the home can cause water issues around the skylight. This happens if the skylight is not properly insulated.


Here is a quick list of common causes:

  • Improper installation
  • Worn or cracked seals
  • Damaged flashing
  • Debris and clogged drainage
  • Roof damage near the skylight
  • Poor insulation or condensation


We focus on finding the exact reason behind each leak. This helps us fix skylights right the first time.

Frequently Asked Questions (FAQs) About Skylight Window Leak Repair and Resealing

  • What are the common signs that a skylight window needs leak repair?

    Water stains on the ceiling or walls near the skylight are a clear sign. You might also notice mold, dampness, or dripping water during rain.



  • How often should skylight windows be resealed to prevent leaks?

    We recommend resealing every 5 years to keep the seals intact. Older skylights might require more frequent checks and resealing.



  • What materials are used for effectively resealing a skylight window?

    We use high-grade silicone or polyurethane sealants. These materials provide strong waterproofing and last longer under sunlight.



  • Can skylight window leaks lead to additional damage if not addressed promptly?

    Yes. Leaks can cause water damage to ceilings, walls, and insulation. They can also lead to mold growth and structural issues.



  • Are there any maintenance tips to extend the lifespan of my skylight seals?

    Regular cleaning of the skylight and checking for cracks or gaps helps. Avoid harsh chemicals and inspect seals after severe weather.