Additions and Remodels Cost in Mamaroneck, NY in 2026
Most Additions and Remodels projects in Mamaroneck, NY cost between $59,000 and $275,000. The typical price is $130,000.
Labour and materials in Mamaroneck run about 22% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Whether the addition needs its own foundation and roof tie-in
- Adding a bathroom or kitchen (plumbing and electrical runs)
- Structural work to the existing wall being opened up
- Local permit and inspection requirements
Usually included
- Framing, roofing and siding to match
- Electrical rough-in and finish
- Insulation, drywall and paint
- Flooring and trim
Usually extra
- Permits and architectural drawings
- Site work or tree removal
- High-end fixtures and appliances
Unit prices in Mamaroneck, NY
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $150 |
| Mid-range | $320 |
| High-end | $685 |
Home addition and remodeling contractors in Mamaroneck, NY
Businesses listed on Google near Mamaroneck, NY. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
MJV Construction
5.0(66 reviews)
455 Tarrytown Rd, White Plains, NY 10607
Remodeling Consultants
4.7(65 reviews)
500 Halstead Ave, Mamaroneck, NY 10543
Luigi Building & Remodeling LLC
4.9(30 reviews)
412 4th St Apartment 2, Mamaroneck, NY 10543
Ormeno General Construction
5.0(26 reviews)
744 Mamaroneck Ave, White Plains, NY 10605
914 Home Renovation
5.0(25 reviews)
180 S Broadway #4, White Plains, NY 10605
Justino Contracting Inc.
4.8(16 reviews)
650 Halstead Ave, Mamaroneck, NY 10543