My Skylight Is Leaking—Should I Reseal, Reflash, or Replace It?
If your skylight is leaking, you may wonder if resealing, reflashing, or replacing it is the best solution. The right choice depends largely on the cause of the leak, the skylight’s age, and the extent of damage. Minor issues, such as deteriorated sealant or worn flashing, can often be resolved with resealing or reflashing, which are less costly and quicker than replacement.
However, if your skylight has repeated leaks, significant damage, or signs of frame or glass failure, replacement by a new roof installation company in Indianapolis may be the more reliable option. Understanding the condition of your skylight and the source of the leak will help you prevent further water damage and costly repairs down the road.

Understanding Skylight Leaks
Common Causes of Skylight Leaks
Most leaks come from gaps or failures in the skylight’s sealant and flashing. Over time, sealants can dry out or crack, allowing water to penetrate. Damaged or improperly installed flashing is another frequent cause, as it fails to direct water away from the skylight frame.
Wear from weather—such as heavy rain, ice buildup, or UV rays—can degrade materials. Poor installation, including incorrect flashing placement or inadequate sealing, increases leak risk. You might also see leaks if the skylight pane itself is cracked or the dome is damaged.
Typical Warning Signs and Symptoms
Water stains, damp spots, or puddles around the skylight inside your home are clear indicators of leaks. You may notice mold, wood rot, or peeling paint near the skylight, as moisture accumulates over time.
Drips during or after rain and condensation buildup around the edges also signal problems. Inspect for missing or cracked sealant and loose or damaged flashing visible on the roof. Early detection helps prevent more serious damage.
Impact of Weather and Installation Quality
Weather plays a critical role in skylight performance. Heavy rain and snow put constant pressure on seals and flashing. Repeated freeze-thaw cycles cause expansion and contraction, leading to cracks or gaps.
Proper installation is crucial. If flashing is set too shallow, or seals are uneven or incomplete, water can easily enter. Poor workmanship often means leaks will appear quickly, while well-installed skylights typically withstand weather effects longer. You should always check the installation quality if leaks appear soon after the skylight fitting.
Evaluating Solutions: Reseal, Reflash, or Replace?
When Resealing Is Effective
Resealing is suitable when the leak stems from minor gaps or cracks in the sealant around the skylight frame. You can expect this to work well if the seals have dried out, shrunk, or developed small cracks, which allow water to seep in.
Check for moisture along the edges without signs of major structural damage. Resealing typically involves applying a high-quality roofing sealant or silicone to restore the watertight barrier. This option is cost-effective and quick, but it only works if the underlying frame and glass are still intact.
Situations Requiring Reflashing
Reflashing becomes necessary when the leak is connected to loose or damaged flashing around your skylight. Flashing directs water away from the joint between the skylight and roof; if it’s bent, corroded, or improperly installed, water can penetrate.
If you notice water stains on the ceiling or walls just under or near the skylight, a flashing issue might be the cause. In this case, the old flashing must be removed and replaced with new, properly fitted flashing that seals the edges of the skylight. This step often requires inspection of the surrounding roof sheathing to ensure no hidden water damage.
Indicators for Complete Replacement
You should consider replacing your skylight if it is older than 15 years, has cracks in the glazing, or shows significant frame warping or rot. Replacement is also the best choice if resealing and reflashing have repeatedly failed.
If your skylight reduces your home’s energy efficiency due to fogging between panes or if it no longer fits modern performance standards, replacement offers a longer-term solution. Removing the skylight allows you to inspect and repair damaged framing or sheathing underneath. Replacing during a roof replacement can save time and reduce costs.
The Skylight Leak Repair Process
Repair Techniques and Materials
To fix your skylight leak, you will often begin by cleaning the area around the skylight thoroughly. Dirt or debris can interfere with sealants. Common materials for repairs include silicone, polyurethane, or butyl rubber sealants, which are flexible and durable against weather.
If the leak is due to flashing damage, you may need to remove old flashing and install new metal flashing properly. This part is critical because flashing directs water away from critical joints. Cracks or damage to the glass or frame might require partial or full replacement of the skylight.
You should apply sealants carefully along all seams and edges to ensure a watertight barrier. Allow sealants to cure fully according to the manufacturer’s instructions before exposing the area to moisture.
Leak Prevention Best Practices
To prevent leaks, regularly inspect your skylight for damaged seals, cracks, or wear. Pay special attention to areas where the sealant meets the frame. Minor cracks should be addressed immediately before they worsen.
Maintain flashing integrity by checking for rust, shifts, or gaps, especially after strong storms or roof work. You should also clear debris from around the skylight flashing to avoid trapped water.
Ventilation is important if you have a vented skylight; ensure it closes tightly. Keep gutters clean to avoid water overflow near the skylight area. Implementing these steps consistently reduces the risk of recurring leaks.
Coordinating Repairs With Other Roofing Needs
If your roof shows signs of aging or damage near the skylight, plan to address these issues simultaneously. Repairing or replacing roofing materials around the skylight can improve the overall seal and prevent new leaks.
Discuss with your contractor whether the roof flashing around the skylight needs updating during any roof maintenance or replacement project. A coordinated approach lowers costs and ensures warranty coverage for both roofing and skylight components.
Make sure any roof repairs do not compromise the integrity of your skylight flashing or seals. Proper integration is key to a long-lasting and watertight roof system.
Benefits of Professional Skylight Services

Advantages of Expert Repairs
Professional skylight technicians identify the root causes of leaks, such as seal failures, flashing problems, or cracks. They use specialized tools and materials to fix the issue properly, preventing recurring leaks and extensive water damage.
You can expect long-term durability from expert repairs, which often save you money compared to quick fixes or frequent replacements. Skilled repair ensures that your skylight maintains its functionality and appearance over time, avoiding costly structural damage.
Additionally, a professional roof patching contractor in Indianapolis typically offers warranties, giving you peace of mind about the work quality and future service if problems recur.
Ensuring Safety and Reliability
Skylight repair involves working on sloped roofs and delicate materials, which poses risks for untrained individuals. Professionals have the proper safety gear and knowledge to perform repairs securely and reduce injury risk.
Reliability is another key benefit. Professional roofing crews ensure all components—including flashing, seals, and the skylight frame—are installed or repaired to exact standards. This guarantees your skylight’s weather resistance and energy efficiency.
Employing experts also means your skylight complies with local building codes. This protects you from potential legal or insurance issues related to improper installations.
Jackson Contracting’s Unique Approach
Jackson Contracting, a full-service roofing company in Indianapolis, brings extensive experience specifically in skylight repair and installation. Their team focuses on diagnosing problems accurately and applying targeted solutions like resealing or reflashing when appropriate.
They offer a customer-centric approach, prioritizing your needs and explaining options clearly. Their commitment to quality uses premium materials and up-to-date techniques to enhance your skylight’s lifespan.
In addition to skylight services, they provide comprehensive roofing solutions. This holistic service helps you maintain overall roof health, ensuring the surrounding structure supports your skylight reliably.
Choosing Jackson Contracting means you benefit from experienced professionals dedicated to durable repairs, safety, and customer satisfaction.