Flat Roof Skylight Repairs

Expert Knowledge and Expertise

Flat Roof Skylight Repairs in Toronto – Precision Repairs from True Flat Roof Specialists

Skylights are an excellent way to bring natural light into a space, but when installed or sealed incorrectly—especially on flat roofs—they can quickly become a source of persistent leaks and costly damage. At TR Flat Roof Repair LTD, we specialize in flat roof skylight repairs, offering fast, durable solutions that restore your roof’s integrity and performance.

Unlike typical skylight installers or sloped-roof contractors, we understand the complex interaction between skylights and flat roofing systems. Flashing, membrane seals, slope, and drainage all play a crucial role in ensuring skylights remain watertight. That’s why so many of our clients choose us—not just to fix the skylight, but to fix the flat roof around it correctly.

With years of experience and a laser focus on flat roofing, we deliver skylight repairs that are both technically sound and built to last.

Common Skylight Issues on Flat Roofs

Flat roof skylights are uniquely vulnerable due to their horizontal orientation and direct exposure to water runoff. Some of the most common issues we see include:

Leaks from poor membrane sealing
Cracked or deteriorated skylight curbs
Ponding water around the skylight frame
Failed flashing or improper installation
UV damage to sealants over time

These problems often occur when skylights are installed by general window or roofing companies that may not fully understand how flat roofing systems function. We’ve been called in countless times to correct leaks and failures caused by improper detailing around skylights.

Our repair approach ensures all components—flashing, membrane layers, and drainage—are working together to keep water out for good. When it comes to flat roof skylight repairs, precision and expertise matter.

Free Estimate

We offer same day estimation services in the following areas:
Toronto, Mississauga, Etobicoke, Scarborough, Vaughan, Markham, Newmarket, Ajax, Aurora, North York and Pickering and surrounding areas. We are available 24/7 for our clients.

Our Specialized Skylight Repair Process for Flat Roofs

We take a systematic, expert-driven approach to every flat roof skylight repair project. It begins with a thorough inspection of both the skylight and the surrounding roofing system. Using moisture detection tools and visual assessments, we determine the exact cause of the issue—whether it’s membrane failure, flashing separation, or curb damage.

Once diagnosed, we carefully remove and reapply layers as needed, re-seal the membrane around the skylight, and ensure proper integration with your drainage system. We use flat-roof-specific materials and techniques to deliver long-lasting performance—even in harsh weather.

What makes our process different? Flat roofs are all we do. We don’t treat the skylight as an isolated fixture—we treat it as part of a larger roofing ecosystem that we fully understand. This gives our customers superior results, fewer callbacks, and true peace of mind.

Why Choose Us Over Traditional Skylight Installers?

While most skylight installers focus on the glass, frame, and aesthetics, we focus on what matters most for flat roofs: waterproofing, integration, and long-term durability. Many of the skylight leaks we repair were originally installed by general contractors who lacked expertise in working with membranes, slopes, or flashing systems unique to flat roofs.

At TR Flat Roof Repair LTD, over 99% of our work involves flat roofing systems—we live and breathe flat roofs. Our team is trained to assess skylight issues from a roofing-first perspective, ensuring the repair addresses both the skylight and its impact on the overall roof system.

Customer satisfaction is our top priority. We pride ourselves on clear communication, honest assessments, and delivering results that last. With hundreds of successful flat roof skylight repairs across Toronto, we’ve earned the trust of homeowners, property managers, and commercial clients alike.

Book Your Flat Roof Skylight Repair Today – Done Right the First Time

If your skylight is leaking, causing water stains, or showing signs of wear, don’t wait until the damage spreads. A faulty skylight on a flat roof isn’t just a minor issue—it’s a potential entry point for water that can affect insulation, drywall, and even structural components.

At TR Flat Roof Repair LTD, we bring unmatched expertise to flat roof skylight repairs across Toronto and the surrounding areas. Whether your skylight was installed improperly, is aging, or simply needs resealing, we’ll inspect it thoroughly and deliver a long-term fix.

Here’s why clients choose us:
✅ True flat roofing specialists—this is our core business
✅ Precision repairs using flat-roof-compatible materials
✅ Transparent pricing and detailed assessments
✅ Trusted by commercial and residential clients across the GTA
✅ 100% commitment to customer satisfaction

Call us today to schedule your flat roof skylight repair. We’ll make sure your skylight works beautifully—without risking your roof’s integrity.

Frequently Asked Questions (FAQ)

A quick and concise resource that addresses the most common questions and concerns, helping you find clear answers and solutions with ease.

Why do skylights on flat roofs leak more often than on sloped roofs?

Flat roof skylights are more prone to leaks because water doesn’t drain away as quickly as it does on sloped roofs. Without the proper flashing, sealing, or membrane integration, water can pool around the skylight frame and eventually penetrate into the building. That’s why it’s crucial to hire flat roof specialists who understand how to properly detail skylight installations and repairs within flat roofing systems.

Can you repair a leaking skylight without replacing the entire unit?

In many cases, yes. Leaks around skylights are often caused by failed flashing, cracked curbs, or deteriorated membrane seals—not the skylight unit itself. As flat roof experts, we can often repair the surrounding roofing system and reseal the skylight properly, eliminating the leak without the cost of full replacement. We always recommend a full inspection before suggesting a solution.

What’s different about your skylight repair process for flat roofs?

Unlike general contractors or window installers, we specialize in flat roofing. Our repair process focuses not just on the skylight but on the roofing system around it. We assess drainage, flashing, membrane adhesion, and the curb structure. This ensures the skylight is fully integrated with the roof—not just sitting on top of it—preventing recurring leaks and extending the life of both the skylight and the roof.

How do I know if my flat roof skylight needs repair?

Signs your flat roof skylight needs repair include interior water stains, visible leaks during rain, bubbling around the skylight frame, or soft spots in the membrane nearby. Even if the skylight itself looks fine, water may be entering through improperly sealed areas beneath the surface. A professional inspection will determine the true cause of the issue and whether a repair or full resealing is needed.

Do you work with all types of skylights on flat roofs?

Yes, we repair all types of skylights commonly found on flat roofs, including fixed, vented, curb-mounted, and custom glass systems. Our flat roof expertise allows us to work around various skylight configurations and integrate them properly with EPDM, TPO, modified bitumen, and built-up roofing systems. No matter the type or age of your skylight, we can provide a lasting repair solution.

Why should I choose you instead of a general skylight installer?

General skylight installers may understand the skylight unit itself, but often lack knowledge of flat roof waterproofing systems. That’s where we stand out. We focus 99% of our work on flat roofs, giving us the technical skill to resolve leaks at their root—whether it’s flashing failure, membrane wear, or drainage interference. Our expertise in flat roof systems means your skylight will be repaired right, the first time.