Additions & Dormers
More room. Same address.
Need more room to grow? IBD handles extensions, dormers, and structural expansions across Nassau and Suffolk with expert framing and permitting support. Family owned since 1990. Licensed and insured in both counties.
Four ways to add space without moving.
Every addition starts with the same question: what does the house need to do that it can't do today? Then we design the expansion around that, match the roofline and siding so it looks like it was always there, and manage the whole job from permit to final walk-through.
- Framing by our own team, not a rotating cast of subs
- Building department filings and inspections coordinated for your town
- Architectural services available if you don't have plans yet
- Roofing, siding, windows, and finish work all under one contract
Headroom, a real bedroom, or a full bath upstairs without changing the footprint.
Double the living space on the same lot. The biggest change a house can make.
Bigger kitchen, family room, mudroom, or first-floor suite, tied cleanly into the existing structure.
Attached garages, backyard studios, pergolas, and decks built to the same standard as the house.
From the job site to finished.
A few of the projects IBD has built across Long Island.
Frequently asked questions.
Straight answers to the questions this kind of project starts with.