Structural Additions
Dormers & Extensions in Nassau County
These are not patch jobs. These are full structural builds — permits, framing, roofing, siding, electrical, plumbing, insulation, all of it start to finish under one roof.
What We Build
Shed Dormers
Full shed dormer additions that open up upper floors and add standing height. Structural framing, roofing, siding, and interior finish — start to finish.
Full Rear Dormers
Complete rear dormer builds that maximize the upper floor footprint. Permits, framing, roofing, siding, windows, and all interior work.
Second Story Additions
Full second story builds on existing ranch or cape homes. Everything managed in-house — no bouncing between subs.
Dormer Bathrooms
Add a full bathroom to your dormer or addition. Plumbing rough-in, tile, fixtures, and finish handled by our own crew.
Permits & Approvals
We handle all permit applications, village approvals, and inspection coordination. You do not have to navigate the municipality.
Structural Framing
We build the structure. Proper framing, load calculations, headers, and structural connections — the foundation everything else depends on.
Realistic Timelines
Most of what we do are shed dormers, full rear dormers, and full second story additions. These are full structural builds — not cosmetic additions slapped on the back of a house.
We move fast because everything is managed tight and we are not bouncing between subs. When framing is done, electrical rough-in starts. When that is inspected, insulation goes in. Everything runs on a real schedule.
6–10 Wks
Dormer Additions
Typical timeline for shed or rear dormers, depending on size and weather conditions.
10–16+ Wks
Second Story Additions
Full second story builds require more time for structural, mechanical, and finish work.
NY Licensed
Fully Insured
Free Estimates
Permit Ready
Dormers & Additions FAQ
How long does a dormer addition take in Nassau County?
Typical timeline is about 6 to 10 weeks for a dormer depending on size and weather. A full second story addition runs 10 to 16 weeks or more. We move fast because everything is managed tight and we are not bouncing between subs.
Do you handle permits for dormer additions?
Yes. We handle all permit applications, village approvals, and inspections from start to final certificate of occupancy. Nassau County municipalities each have their own requirements and we know the process.
What trades do you handle in-house for a dormer build?
We handle everything: permits, framing, roofing, siding, electrical, plumbing, insulation, drywall, and interior finish — all under one roof. These are not patch jobs and we do not farm out the structural work.
What is the difference between a shed dormer and a rear dormer?
A shed dormer adds a single sloped roof section across the back of an existing roofline, opening up the full width of the upper floor. A full rear dormer is a larger structural build that extends out further and typically includes more square footage. Both are full structural builds — not cosmetic additions.
How much does a dormer addition cost on Long Island?
Dormer costs vary significantly based on size, finishes, and whether plumbing is included. Shed dormers typically range from $60,000 to $120,000 depending on scope. Full second story additions are a larger investment. Call (516) 557-4933 for a free walkthrough and written estimate.
Do weather delays affect the timeline?
Weather affects the structural phase — framing, roofing, and exterior work cannot be rushed in bad conditions. We account for weather realistically when we give you a timeline. We do not promise a timeline we cannot keep.
Can you add a bathroom to a dormer?
Yes. We handle full bathroom rough-in, plumbing, tile, fixtures, and finish as part of the dormer build. Our plumbing and electrical crew works alongside the framing crew so the rough-in is done right before anything gets closed up.
Are you licensed and insured for structural addition work in New York?
Yes, Titan Project Solutions is fully licensed and insured in New York State for structural addition and renovation work. We carry full liability insurance and workers' compensation on every project.
Service Areas
And many more towns across Nassau and Western Suffolk County.
Ready to Add Space to Your Home?
Call Titan Project Solutions for a free dormer or addition estimate. We handle everything start to finish.