Skylight Repair & Installation in North Charleston, SC

A skylight should add natural light and comfort to your home—not water stains, foggy glass, or rising energy bills. Mighty Dog Roofing of Charleston provides professional skylight repair, skylight flashing solutions, and skylight installation for homeowners in North Charleston and the surrounding Lowcountry. Our approach looks beyond the skylight itself to evaluate the surrounding roof, flashing, underlayment, and ventilation, because coastal rain, humidity, and wind-driven storms often expose weaknesses in the overall roof system. If you’re seeing leaks or condensation, the most effective first step is a targeted roof and skylight inspection to determine whether repair or replacement is the right long-term solution.

If you’re dealing with an active leak, ceiling stains, or fogged glass, now is the time to act before moisture causes further damage.

Call (843) 604-3936 to schedule a skylight inspection and get clear answers on the best fix for your home.

Why Is My Skylight Leaking When It Rains?

When a skylight leaks during rainstorms, the issue is usually not the glass—it’s the waterproofing system around it. In North Charleston, heavy rain and wind can force water beneath shingles, behind flashing, or under deteriorated underlayment, allowing moisture to travel before it appears inside. Common causes include damaged shingles above the skylight, incorrectly installed flashing, clogged drainage channels on older units, or skylights installed on roofs with improper pitch. Temporary fixes like caulk or roof cement often fail quickly under Lowcountry weather conditions.

Not all moisture is an exterior leak. High humidity can cause condensation on skylight frames or shafts if attic insulation is insufficient, vapor barriers are missing, or exhaust fans vent into the attic. Our inspections trace the moisture source carefully so you don’t pay for a repair that doesn’t solve the real problem.

Skylight Flashing Repair vs. Replacement

Skylight flashing is a layered system of metal and waterproof membrane designed to direct water away from the skylight and back onto the roof. When flashing is intact and properly integrated with roofing materials, repairs may be sufficient. Flashing repair can involve replacing damaged step flashing, correcting lifted head flashing, adding waterproof membrane, or reworking shingles to restore proper overlap.

Flashing replacement is often the better choice when metal components are corroded, improperly designed, or installed incorrectly from the start. If the skylight curb is too short, the frame is warped, or the surrounding roof has multiple failure points, repeated patching can lead to ongoing leaks. During your inspection, we’ll explain whether flashing repair, full flashing replacement, or skylight replacement will provide the most reliable outcome—and we’ll show you what we find so the recommendation is clear.

Skylight Repair and Installation Cost: What to Expect

Skylight repair costs vary based on the cause of the issue, roof access, and the skylight type. Minor repairs are typically far less expensive than replacements, but costs increase if there is rotted decking, wet insulation, or interior drywall damage. Acrylic domes, fixed glass skylights, and venting skylights all require different materials and labor.

For planning purposes, homeowners often ask about skylight installation cost per square foot. In general, installed skylights commonly range from about $150–$350 per square foot for standard sloped-roof applications, with higher costs for flat roofs, curb-mounted systems, or interior finishing work. After an inspection, we provide a detailed estimate so you understand the scope, timeline, and investment before moving forward.

How Long Does Skylight Installation Take?

Replacing an existing skylight using the same opening can often be completed in a single visit, sometimes within half a day, weather permitting. New skylight installations take longer because they involve cutting the opening, framing, waterproofing, and finishing the interior shaft. Exterior work is typically completed in one day, with additional time scheduled for drywall and paint if needed.

You can replace a skylight without replacing the roof if the surrounding roofing materials are in good condition and have sufficient remaining life. If the roof is nearing the end of its lifespan, combining skylight work with roof replacement may be the most cost-effective way to ensure long-term performance and proper flashing integration.

Best Skylight Options for Flat Roofs and Energy Efficiency

For flat or low-slope roofs, curb-mounted skylights are usually the best option. These systems elevate the skylight above the roof surface and allow proper membrane tie-ins to reduce standing water risk. In coastal South Carolina, impact-resistant glazing and carefully detailed curbs are especially important to manage heavy rain and wind.

Modern skylights with Low-E coated, insulated glass can improve energy efficiency by reducing heat transfer and UV exposure while increasing natural light. Older skylights, particularly acrylic domes or units with failed seals, are more likely to cause drafts, fogging, and recurring leaks. If condensation appears between glass panes, replacement is usually the most reliable fix.

Why Hire Mighty Dog Roofing of Charleston for Skylight Service

Choosing the right contractor matters when water intrusion is involved. Our team focuses on durable, system-based solutions rather than temporary fixes.

• Roof-first approach that evaluates shingles, flashing, and underlayment together

• Experience with coastal weather challenges, including wind-driven rain and humidity

• Clear explanations, photos, and recommendations so you understand the repair

• Quality materials and installation methods designed for long-term performance

• Respect for your home, schedule, and property throughout the project

Skylight Repair & Installation FAQs

Can a skylight be repaired, or does it always need replacement?
Many skylight issues can be repaired if the unit itself is in good condition. Failed seals, cracked frames, or repeated leaks often indicate replacement is the better option.

Is foggy skylight glass fixable?
Fogging between panes usually means the insulated glass seal has failed. In most cases, the solution is replacing the glass assembly or the skylight.

Do skylights increase home value?
Properly installed, energy-efficient skylights can increase buyer appeal by making interiors brighter and more inviting.

Will a skylight make my home hotter?
Older skylights can contribute to heat gain, but modern Low-E glass units are designed to minimize heat transfer when correctly installed.

When you’re ready to stop leaks, clear foggy glass, or plan a new skylight installation, Mighty Dog Roofing of Charleston makes the process straightforward. We’ll inspect the skylight and surrounding roof system, explain your options clearly, and provide a solution built for Lowcountry weather.

Call (843) 604-3936 today to schedule skylight repair or installation service in North Charleston.