You’re not looking to move. You like your neighborhood, your commute, your block. But you need another bedroom for aging parents, a home office that actually has a door, or a bathroom so your teenagers stop fighting every morning.
A dormer gives you that space without eating up your yard or forcing you into a bigger mortgage. It’s faster than a full addition, less disruptive than you’d think, and when it’s done right, it looks like it was always part of the house.
You get natural light where there used to be darkness. Headroom where you used to duck. A functional room where you used to store Christmas decorations. And you stay exactly where you want to be.
We’ve been handling dormer additions, extensions, and full-scale renovations across Nassau County since the 1970s. We know the Cape Cods, colonials, and ranches that fill North Bellmore streets because we’ve worked on hundreds of them.
Ray’s on every job site. Not sometimes—every time. You’ll see him there, and when you call, someone picks up. That’s not marketing talk. It’s how we’ve stayed in business for five decades in one of the most competitive markets on Long Island.
We handle the permits, the inspections, the Town of Hempstead paperwork. We keep the site clean. And if your pipe freezes at 3 a.m., we show up. That’s the standard.
First, we come out and look at your attic, your roof line, and your goals. We measure everything, talk through what’s possible, and give you a realistic picture of cost and timeline. No surprises later.
Then we handle the permits. In North Bellmore, that means working with the Town of Hempstead building department. We know what they want to see, and we make sure the plans get approved without unnecessary delays.
Once we start, you’ll see our crew show up on time, work clean, and actually communicate. We’re usually talking about 4 to 12 weeks depending on the size and complexity. Shed dormers go faster. Gable dormers with custom windows take a bit longer. Either way, Ray’s there managing it all, and you’re not left guessing what’s happening.
When it’s done, you’ve got a finished room—framed, insulated, drywalled, and ready to use. We don’t leave until the site’s clean and the work passes inspection.
Ready to get started?
A dormer isn’t just cutting a hole in your roof. It’s structural work that has to be done right or you’ll have problems for years.
We handle the framing, the roof extension, the windows, insulation, drywall, and interior finishes. If you’re adding a bathroom up there, we run the plumbing. If it’s a bedroom, we make sure it meets egress codes. Everything gets inspected and signed off.
Most North Bellmore homes were built between the 1940s and 1960s, and a lot of them have attics that were never meant to be living space. We know how to work with older framing, tight roof pitches, and layouts that don’t make things easy. And because we’ve done this across Long Island for decades, we also know how to match your home’s style—whether it’s a post-war Cape or a mid-century colonial—so the dormer doesn’t look like an afterthought.
You’re also not losing your yard. That’s one of the biggest reasons people choose dormers over ground-level additions. You keep your outdoor space and still get the square footage you need.
Most dormer projects in North Bellmore run between $15,000 and $50,000, depending on size, style, and what’s going inside. A small shed dormer that adds a bathroom will cost less than a full gable dormer with custom windows and a walk-in closet.
The price also depends on what we find when we open up the roof. If your framing needs reinforcement or we hit outdated wiring, that adds to the scope. We give you a detailed estimate up front so you know where the money’s going.
Compared to moving or building out, a dormer is one of the most cost-effective ways to add livable space. You’re not buying a new house or pouring a foundation. You’re using space you already own.
Yes. Any structural work that changes your roof line or adds living space requires a permit from the Town of Hempstead building department. That includes dormers.
We handle the entire permit process for you—drawings, submissions, inspections, and approvals. It’s one less thing you have to track down or worry about. Permit timelines can vary depending on how backed up the town is, but we build that into the schedule so you’re not sitting around waiting.
Skipping permits isn’t worth it. It can kill a future sale, void your insurance, or result in fines. We do it right the first time so you never have to think about it again.
Most dormer projects take between 4 and 12 weeks from start to finish. Smaller shed dormers are on the simpler end of that range. Larger gable dormers with full interior build-outs take longer.
Weather can slow things down, especially in winter. Permit approval times also affect the overall timeline, but once we’re on site, the work moves steadily. We’re not bouncing between five other jobs—we finish what we start.
You’ll be living in your house during construction, but it’s not as disruptive as people expect. We tarp and seal at the end of every day, keep dust contained, and clean up the site before we leave. You won’t have tarps flapping over your head for weeks.
If it’s done right, yes. A good dormer should look like it was part of the original design, not something slapped on later.
We work with your home’s existing roof pitch, siding, window style, and trim details to make sure everything blends. North Bellmore has a lot of Cape Cods and colonials, and we’ve built dormers on both styles hundreds of times. We know what works and what doesn’t.
You’ll see the design before we build. We walk you through the plans, show you how it’ll look, and make adjustments if needed. The goal is more space and better function without compromising your home’s curb appeal or resale value.
Absolutely. That’s one of the main reasons people add dormers—turning unused attic space into a functional bedroom, bathroom, or home office.
If you’re adding a bathroom, we’ll run the plumbing and make sure everything’s vented and up to code. For bedrooms, we ensure the space meets egress requirements, which means proper window size and placement for safety.
We’ve done full bedroom suites with bathrooms, guest rooms for aging parents, and home offices for people who need to actually close a door and focus. Whatever the goal, we build it to work for your life—not just check a box.
A shed dormer has a single sloped roof that extends out from your existing roof line. It’s wider, adds more interior space, and tends to cost less. Most people choose shed dormers when they want maximum square footage.
A gable dormer has a peaked roof and usually includes a window on the front-facing wall. It’s more traditional looking, works well on colonial-style homes, and adds great curb appeal. Gable dormers cost a bit more because of the additional framing and roofing, but they can really enhance your home’s exterior.
Both styles work in North Bellmore. The right choice depends on your home’s architecture, your budget, and how much space you’re trying to gain. We’ll walk you through both options and show you what makes sense for your specific situation.
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