
Additions
Additions built to tie into the house you have.
Overview
MHG Contracting builds home additions around Hamilton, NJ: family rooms, sunrooms, primary suites and second stories. An addition means foundation, framing, a roof that ties into the old one, siding that matches, and heating, wiring and plumbing for the new space, plus the permit and any zoning approval. Every addition starts with a free visit and a written estimate.

What's Included
Frequently Asked Questions
Will an addition match my house?
That is the goal: rooflines, siding, trim and window styles chosen to match what is there. It gets planned before the permit drawings are final.
Do I need zoning approval for an addition?
Only if the addition breaks the town's zoning rules, such as setbacks or lot coverage. Then the owner applies to the zoning board of adjustment for a variance under N.J.S.A. 40:55D-70, before the construction permit.
What does an addition cost?
It depends on size, foundation and what goes in it. The home addition cost guide has the Middle Atlantic Cost vs. Value figure. Your estimate is free.
Sources
- N.J.S.A. 40:55D-70, Powers of the zoning board of adjustment (variances), New Jersey Municipal Land Use Law. Checked 2026-09-26.
- Remodeling 2025 Cost vs. Value Report, Middle Atlantic region, Zonda Media. Checked 2026-09-26.
Additions by City
MHG Contracting delivers additions across Central New Jersey and Bucks County, PA. Explore our service area pages for details specific to your town.
Get a Free Addition Estimate
Tell us about your project. The estimate is free.

