Your attic right now is probably dark, cramped, and full of things you don’t want to deal with. Maybe you’ve thought about finishing it, but the ceiling’s too low. Or there’s not enough light. Or it just feels like wasted square footage you’re paying taxes on.
A dormer changes that. It raises the roofline where you need it, brings in natural light, and turns unusable space into a bedroom, office, bathroom, or whatever your family actually needs. You’re not knocking down walls or expanding your footprint. You’re building up, which matters in Great Neck where lot sizes and zoning restrictions make outward expansion complicated or impossible.
The result is more functional space, better resale value, and a home that works for you instead of against you. Most dormer projects here take between four and eight weeks depending on size and scope. You’re looking at around $115 per square foot on average, but that includes framing, roofing, windows, insulation, and interior finish work. Compare that to moving or buying a bigger house, and the math makes sense.
Ray Coleman started this company over 50 years ago, and we’re still here because we answer the phone, show up when we say we will, and do the work right. More than 60% of our jobs come from referrals, which tells you something about how people feel after working with us.
We’re licensed and insured across Nassau and Suffolk County. We handle the permits, the inspections, and the coordination. You get a crew that keeps the site clean and a team that responds when you call or text. We’ve done dormers, full renovations, kitchens, bathrooms, and additions all over Long Island, and we know how to work within the restrictions and quirks of Great Neck’s building codes.
This is a family-owned business. We’re not a franchise or a lead-gen company that farms out the work. When you call, you’re talking to people who will actually be on your job.
First, we come out and look at your attic. We measure the space, check the roof structure, and talk through what you’re trying to accomplish. You’ll know right away if a dormer makes sense for your home and what type works best—shed, gable, or hipped.
Once we agree on the plan, we handle the permit process with the town. Great Neck requires permits for dormer work, and the timeline depends on how backed up the building department is. We submit everything and keep you updated.
When permits clear, we start framing. The roof gets opened up, the dormer structure goes in, and we tie everything into your existing roofline. Then comes roofing, windows, insulation, drywall, and interior finishes. Most of the heavy work happens outside, so your daily routine isn’t completely upended.
Throughout the project, we keep the site clean and make sure you know what’s happening next. If something comes up—weather delays, a structural issue we didn’t see until we opened the roof—we tell you immediately and explain your options. No surprises on the invoice.
Ready to get started?
A dormer isn’t just a roof bump. It’s structural work that involves framing, roofing, windows, insulation, electrical, and finish carpentry. When we build a dormer, you’re getting a complete addition that’s ready to use.
That means properly insulated walls and ceilings so the space is comfortable year-round. It means windows that meet egress codes if you’re adding a bedroom. It means drywall, paint, trim, and flooring that match the rest of your house. If you’re adding a bathroom up there, we rough in the plumbing and make sure there’s enough headroom around the toilet and shower.
In Great Neck, a lot of homes were built in the ’50s and ’60s. The bones are solid, but the layouts don’t always fit how people live now. Families are working from home. Kids need their own space. Aging parents are moving in. A dormer gives you the flexibility to adapt your house without starting from scratch. And because you’re adding square footage and improving functionality, you’re also increasing your property value—often by as much as 22% depending on the scope of work.
You’re looking at an average of $115 per square foot for a dormer in this area. That includes all the framing, roofing, windows, insulation, drywall, and finish work. So if you’re adding 150 square feet of usable space, expect the project to run around $17,000 to $20,000 depending on complexity.
The variables that affect cost are the type of dormer, how much interior finishing you want, whether you’re adding plumbing or electrical, and what your roof structure looks like once we open it up. Older homes sometimes have surprises—outdated wiring, undersized rafters, or settling that needs to be addressed before we can frame the dormer properly.
We give you a detailed estimate upfront so you know what you’re paying for. No line items that say “miscellaneous” or “as needed.” If something changes during the job, we talk through it with you before we do the work. The goal is to give you a finished space that works, not to nickel-and-dime you with change orders.
Yes. Any structural work that changes your roofline requires a building permit in Great Neck, and dormers definitely fall into that category. The town wants to make sure the work meets code for structural integrity, fire safety, and egress requirements.
We handle the permit process for you. That means preparing the drawings, submitting the application, and coordinating inspections. The timeline varies depending on how busy the building department is, but you’re usually looking at a few weeks for approval. Once the permit is issued, we schedule the work and keep everything on file in case you ever sell the house.
Skipping the permit might seem tempting, but it causes problems down the road. If you try to sell and the dormer wasn’t permitted, you’ll have to legalize it before closing—which means paying for the permit retroactively, possibly tearing into finished walls for inspections, and dealing with buyers who get nervous about unpermitted work. It’s easier to do it right the first time.
It depends on what you’re trying to accomplish and what your house can handle structurally. Shed dormers are the most common because they give you the most usable space. The roofline slopes in one direction, which maximizes headroom and square footage. If you’re adding a bedroom or bathroom, a shed dormer usually makes the most sense.
Gable dormers are smaller and stick out from the roof with a peaked front. They’re good for adding light and ventilation without a full room addition. You see them a lot on Cape Cod-style homes. They add architectural interest and some extra space, but not as much as a shed dormer.
Hipped dormers have a roof that slopes on three sides. They’re less common and usually chosen for aesthetic reasons or to match existing rooflines. During our initial consultation, we’ll look at your roof pitch, your attic layout, and what you’re hoping to use the space for. Then we’ll recommend the type that makes the most sense for your situation and your budget.
Most dormer projects take four to eight weeks from start to finish, but that timeline depends on the size of the dormer, the weather, and how long permits take to clear. The actual construction—framing, roofing, windows, and interior work—usually takes three to five weeks if everything goes smoothly.
Delays happen. Permit approval can take longer if the town is backed up. Rain or snow can push back roofing work. Sometimes we open up the roof and find something that needs to be addressed before we can move forward, like undersized framing or old wiring that’s not up to code. We don’t rush through those issues. We fix them right so the finished dormer is safe and solid.
We’ll give you a realistic timeline during the estimate and keep you updated throughout the project. If we hit a delay, you’ll know about it the same day, and we’ll tell you what it means for the schedule. The goal is to get the work done as quickly as possible without cutting corners or leaving you in the dark about what’s happening.
Yes, especially in Great Neck where home values are high and space is limited. Adding functional square footage almost always increases resale value, and dormers can boost your property value by as much as 22% depending on the scope and quality of the work.
Buyers care about usable space. If your attic is just storage, it doesn’t add much to your home’s appeal. But if it’s a finished bedroom with a dormer that brings in natural light and provides enough headroom to stand comfortably, that’s a selling point. Same goes for adding a bathroom—extra bathrooms are a big deal in family-oriented markets like this one.
Beyond the numbers, a dormer makes your house more livable right now. You’re not doing this project just to sell. You’re doing it because you need more space and you don’t want to move. The increase in property value is a bonus, but the real benefit is having a home that works better for your family today.
Absolutely. Adding a bathroom is one of the most common reasons people build dormers. You need enough ceiling height for someone to stand at the sink, toilet, and shower, and a dormer gives you that headroom. We rough in the plumbing, run the electrical, install ventilation, and finish it out so it’s ready to use.
The tricky part is getting plumbing up to the attic if it’s not already there. We have to tie into your existing drain lines and water supply, which sometimes means opening up walls or ceilings on the floor below. We plan that out during the design phase so you know what to expect. If your attic is directly above an existing bathroom, the plumbing runs are shorter and the job is simpler.
You’ll also need to meet code requirements for ventilation, lighting, and egress depending on where the bathroom is located and whether it’s part of a bedroom suite. We handle all of that. By the time we’re done, you’ve got a fully functional bathroom that adds convenience to your daily routine and serious value to your home.
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