Decks and Porches Cost in Amherst, NH in 2026
Most Decks and Porches projects in Amherst, NH cost between $7,500 and $26,000. The typical price is $13,500.
Amherst prices track the national average closely. Costs here are close enough to the national picture that the adjustment barely moves the number.
What drives the price
- Pressure-treated pine versus composite versus hardwood
- Height off the ground and stair count
- Railing material
- Footing depth required by frost line
Usually included
- Footings, framing and decking
- Railings and stairs
- Fasteners and flashing at the ledger
Usually extra
- Permits
- Under-deck drainage
- Built-in seating or pergola
Unit prices in Amherst, NH
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $25 |
| Mid-range | $45 |
| High-end | $86 |
Deck builders in Amherst, NH
Businesses listed on Google near Amherst, NH. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
BDP LLC
5.0(43 reviews)
42 Addison Rd, Goffstown, NH 03045
Crowe Fence & Deck Supply
4.6(57 reviews)
36A NH-101A, Amherst, NH 03031
Villandry Home & Outdoor Living
4.9(38 reviews)
165 Baboosic Lake Rd, Merrimack, NH 03054
Vintage Contracting
5.0(30 reviews)
17 Mason Rd, Merrimack, NH 03054
Schwanz Construction
4.7(36 reviews)
10 Northern Blvd Ste 12, Amherst, NH 03031
New England Deck Builders
5.0(13 reviews)
1 Main St, Amherst, NH 03031