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No more water stains spreading across your ceiling after every storm. No more strategically placed buckets or ruined insulation. When your skylight replacement is handled correctly, you get a roof that actually protects your home the way it should.
You also get real energy savings. Modern ENERGY STAR certified skylights can cut your heating and cooling costs by up to 13%—a significant difference when you’re dealing with Central Islip’s humid summers and freezing winters. That’s money back in your pocket every single month.
And here’s what most homeowners don’t realize until it’s done: the light changes everything. Rooms that felt cramped and dark suddenly open up. You wake up to natural morning light instead of flipping switches. Skylights provide up to five times more light than standard windows of the same size, and that difference is immediate.
We’ve spent over a decade working on homes across Suffolk County. We’re licensed, insured, and we live here—which means the work we do reflects directly on our reputation in the community.
We’ve replaced hundreds of skylights in Central Islip and the surrounding area. We know how Long Island weather beats up roofs: the freeze-thaw cycles, the nor’easters, the ice dams that form when temperatures hover right around 32 degrees for days. That’s why we install Velux skylights with integrated flashing systems designed specifically for this climate.
You’re not getting a crew that learned roofing somewhere else and moved here last year. You’re working with contractors who understand what Central Islip homeowners deal with because we deal with it too.
First, we come out to assess your current skylight and roof condition. We’re looking at the unit itself, the flashing, the surrounding shingles, and any signs of water damage or structural issues. You’ll get a clear explanation of what needs to be done and an upfront price—no surprises later.
On installation day, we protect your home. Tarps go down inside and out. We carefully remove the old skylight unit, inspect the roof deck for any hidden damage, and make repairs if needed. Then we install the new Velux skylight with proper flashing—multiple waterproof barriers that integrate with your existing roof system.
The new unit gets sealed, the shingles get replaced around it, and we clean up completely. Most single skylight replacements take four to six hours. You’re typically done in one day, and you can see the difference in light quality immediately. More importantly, you’ll stay dry through the next storm.
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You get a premium Velux skylight unit—the brand that’s recognized worldwide for quality and durability. These aren’t builder-grade units. They’re double-pane, energy-efficient, and built to handle Long Island’s weather extremes. If you want ventilation, we install models that open to let hot air escape. If you want convenience, we can set you up with solar-powered options that include automatic rain sensors.
The installation includes all new flashing, proper waterproofing with multiple barriers, and replacement of any damaged shingles around the skylight. We’re also looking at your roof deck during the process. If there’s rot or structural damage from previous leaks, we address it before the new skylight goes in.
Central Islip homes—especially those built in the 70s, 80s, and 90s—often have original skylights that were never designed for energy efficiency. Replacing them isn’t just about stopping leaks. It’s about upgrading to technology that actually works. Modern skylights don’t turn your room into a sauna in July or leak heat in January. The difference in comfort is noticeable within days, and your energy bills will reflect it within the first month.
Most residential skylight replacement projects in Central Islip run between $1,500 and $3,000 per unit, depending on size, type, and roof complexity. That includes the Velux skylight, all flashing materials, labor, and any necessary shingle replacement around the opening.
If you’re replacing a standard fixed skylight with another fixed unit, you’re looking at the lower end. Vented skylights or solar-powered models with rain sensors cost more, but they also give you functionality that can make a real difference in comfort. If we find roof deck damage during removal—which happens when leaks have been going on for a while—that repair adds to the cost, but it’s not optional. You can’t install a quality skylight over rotted wood.
We give you a clear estimate before we start. No hidden fees, no surprise charges when the job’s done. And if you need financing, we can work with you on that too.
A single skylight replacement typically takes four to six hours from start to finish. Most jobs are completed in one day, weather permitting.
The timeline depends on a few factors: the size of your skylight, the pitch of your roof, and whether we find any unexpected damage when we remove the old unit. If your roof deck is solid and the replacement is straightforward, we’re usually done by early afternoon. If we need to repair structural damage or if you’re upgrading to a larger unit that requires reframing, it might extend into a second day.
We don’t rush the flashing. That’s where most skylight leaks come from—improper flashing installation. We take the time to do it right, which means multiple waterproof layers that integrate correctly with your shingle system. You’d rather have us spend an extra hour on flashing than deal with another leak in six months.
If it’s installed correctly with proper flashing, a new Velux skylight won’t leak. The problem is that “installed correctly” is where most companies cut corners.
Here’s what you need to know: about 75% of skylight leaks come from failed flashing, not the skylight unit itself. The flashing is the metal and waterproof barrier system that connects your skylight to your roof. If it’s not installed right—if the layers aren’t overlapped correctly, if it’s not integrated with your shingles properly, or if cheap materials are used—water will find a way in.
We use Velux’s integrated flashing systems, which are engineered specifically for their skylights. Multiple waterproof barriers, proper overlap, correct installation sequence. And we’ve been doing this for over a decade on Long Island, where we get freeze-thaw cycles, ice dams, and nor’easters that test every weak point in a roof. When we install a skylight, it stays dry.
We can replace skylights year-round in Central Islip, including winter, as long as temperatures are above freezing and conditions are safe for roof work.
The main concern in winter is that roofing adhesives and sealants need certain temperatures to cure properly. If it’s 35 degrees and sunny, we can usually work. If it’s 20 degrees with ice on the roof, we’re not going up there—for safety reasons and because the materials won’t perform correctly.
If your skylight is actively leaking during winter, we can do emergency repairs to get you through until conditions improve for full replacement. That might mean tarping, temporary sealant, or interior protection to prevent further damage. But if weather allows, we’d rather just replace it and solve the problem permanently. Long Island winters are unpredictable—we get plenty of days in the 40s even in January and February—so there’s often a window to get the work done.
If your skylight is more than 15 years old, replacement almost always makes more sense than repair. Here’s why: older skylights lack the energy efficiency, weatherproofing, and durability of modern units.
Repairs might stop a leak temporarily, but you’re still left with single-pane glass that bleeds heat in winter and turns your room into a greenhouse in summer. You’re still dealing with outdated seals that will fail again. And you’re missing out on features like low-E coatings, argon gas fills, and integrated flashing systems that actually prevent leaks long-term.
The cost difference between a repair and a full replacement is often only a few hundred dollars, but the performance difference is massive. If your skylight was installed in the 80s or 90s, the technology has changed completely. Modern Velux units can cut your energy costs by 13%, provide better light quality, and come with warranties that actually mean something. Unless your skylight is relatively new and the problem is clearly just a flashing issue, replacement is the smarter investment.
Yes, but only if you’re replacing an old, inefficient unit with an ENERGY STAR certified skylight. The savings come from better insulation, low-E glass coatings, and modern sealing technology that older skylights simply don’t have.
ENERGY STAR certified skylights can reduce your heating and cooling costs by up to 13%. For a typical Central Islip home, that’s $150 to $300 per year depending on your energy usage and HVAC system. Over the 20+ year lifespan of a quality skylight, that adds up to thousands of dollars—often more than the cost of the replacement itself.
The bigger impact is comfort. Old skylights create hot spots in summer and cold drafts in winter, forcing your HVAC system to work harder. New skylights with double-pane glass and argon fills maintain consistent temperatures. You’re not cranking the AC because one room is 10 degrees hotter than the rest of the house. That’s where the real savings show up—in a system that doesn’t have to run constantly to compensate for a poorly performing skylight.
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