Skylights are a great way to let natural light pour into your home—but when they start to leak, they can quickly go from a beautiful feature to a serious problem. If you’ve noticed water dripping or staining around your skylight, it’s time to take action before things get worse.
At RHS Roofing, we specialize in identifying and fixing leaks fast. Here’s a simple guide to help you troubleshoot a leaking skylight and know when to call in the pros.
Step 1: Find the Source of the Leak
Before jumping into repairs, it’s important to figure out where the leak is actually coming from. Here are the most common culprits:
Flashing Issues
The metal flashing around your skylight is designed to keep water out—but over time, it can loosen, rust, or lose its seal. Look for gaps, lifted edges, or missing screws.
Cracked or Deteriorated Sealant
Sealant around the skylight can dry out and crack in the Arizona sun. If the caulking looks worn or is pulling away, water may be getting in through those small openings.
Damage to the Skylight Itself
Inspect the glass or plastic lens for cracks, and check the frame for warping or damage. If there’s a rubber gasket around the unit, it might be brittle or broken.
Condensation Problems
If you’re seeing moisture but not sure if it’s a leak, it could be condensation. This usually happens when the room has poor ventilation, especially in bathrooms or kitchens.
Step 2: Fix the Problem
Once you’ve identified the issue, you can decide whether it’s something you can handle yourself or if it’s time to call in a roofing professional.
For Minor Leaks
You might be able to reseal the area with a waterproof, UV-resistant roofing sealant. Make sure to remove any old or damaged sealant before applying the new one.
For Flashing Problems
Damaged or improperly installed flashing should be repaired or replaced. In some cases, re-sealing the edges is enough—other times, a full replacement may be necessary.
For Skylight Damage
If the skylight lens or frame is cracked or broken, the best option is usually to replace the unit entirely. Temporary fixes won’t hold up against future rain.
For Condensation
Increase airflow by using a fan or installing a vent in the room. A dehumidifier can also help reduce moisture buildup around the skylight.
Step 3: Keep Safety a Priority
Never Walk on the Skylight
Skylights are not made to bear weight. Walking on them can cause serious damage or lead to injury.
Hire a Professional if You’re Unsure
Working on a roof can be dangerous. If you’re not comfortable climbing or unsure about the repair, it’s best to call a licensed roofing contractor like RHS Roofing.
Step 4: Prevent Future Leaks
Clean the Area Before Sealing
Debris, dust, and grime can prevent sealant from sticking properly. Make sure the area is clean and dry before you begin.
Use the Right Products
Only use roofing-grade sealants that are designed for skylights and flashing. Cheaper alternatives may not hold up under Arizona’s intense sun.
Test for Leaks
After applying sealant, use a garden hose to lightly spray water around the skylight. Check inside for any signs of moisture.
Schedule Regular Roof Maintenance
Routine inspections and upkeep from a roofing expert can prevent leaks before they start.
Need Help With a Leaking Skylight in Arizona?
At RHS Roofing, we’ve seen it all—from minor sealant cracks to full skylight replacements. If you’re dealing with a leak or just want peace of mind, give us a call or visit RHSRoofer.com for a FREE quote. Don’t wait until a small leak becomes a major headache.
Protect your home. Trust RHS Roofing.