Dormer framing and home additions on Long Island

Dormers & Home Additions

Add space with clean design, proper structure, and full permit support—Nassau & Suffolk County, NY.

More Space, Seamless Look

From second-story dormers to rear and side additions, we expand your home with a design that appears original—framing, roofing, siding, and interiors blended cleanly.

Structural & Weatherproofing

Headers, load paths, sheathing, flashing, and insulation handled to code for long-term performance.

Permits & Inspections

We prepare drawings as needed, file with your Nassau or Suffolk town, and coordinate all inspections.

Clean Scheduling

Trade sequencing and daily cleanup to keep your home usable throughout construction.

Recent Additions & Dormers

Client-provided framing and dormer photos. Alt text is tuned for Long Island SEO.

Dormer framing progress photo in Nassau County, Long Island Second-story dormer framing and roof tie-in in Suffolk County Home addition framing and structural work on Long Island Dormer build showing new rafters and sheathing on Long Island Residential addition framing with clean load path and headers Dormer and addition construction progress photo in Nassau and Suffolk County

Typical Scope

Dormers

  • Front, rear, or full shed/cape dormers
  • Structural framing and roof tie-ins
  • Windows, insulation, and interior finish

Rear/Side Additions

  • Foundations, framing, sheathing
  • Roofing, siding, gutters, trim
  • Electrical, HVAC, plumbing as needed

Interiors

  • Drywall, doors, casing, baseboard
  • Flooring, paint, lighting
  • Baths or laundry rooms inside additions

Our Additions Process

1) Site Visit & Scope

Measure, check utilities/lot lines, and align on goals, budget, and timing.

2) Drawings & Permits

Architectural plans as needed, engineering if required, and town filing in Nassau/Suffolk.

3) Build & Inspections

Foundation to finish; we coordinate inspections and keep you updated.

4) Finish & Walkthrough

Final trims, paint, punch list completion, and documented warranty.

Additions FAQs

Do I need architectural plans?

Most additions and dormers require stamped drawings for permits. We’ll coordinate the design process for you.

How long does a typical addition take?

Design/permits can take 4–8+ weeks depending on the town. Construction timelines vary by scope—expect ~8–16+ weeks from foundation to finish.

Can you match my existing exterior?

Yes—siding profiles, roofing, trims, and window styles can be selected to blend the new work with the original home.

Do you offer financing?

Yes—see our Financing page for options via our lending partner.

Ready to Start Your Project?

Get a free, no-pressure estimate anywhere in Nassau County or Suffolk County. We’ll review your goals, budget, and timeline—and map the cleanest path to build day.

Request Your Estimate