
Deck Design & Construction in Merrimack, NH
Trusted, licensed decks for Merrimack homeowners — from our Northborough base. Custom decks and outdoor living spaces in composite or wood — the perfect extension of the home you already love.
Free Decks estimate in Merrimack
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Your local decks contractor in Merrimack
Waterfront Construction is a trusted decks contractor serving Merrimack, New Hampshire and the surrounding region. Working from our Northborough base, we're fully licensed, insured and owner-led — known for treating every Merrimack home like our own: on time, on budget, and done right the first time.
Merrimack is in Hillsborough County, New Hampshire, established in 1746 and home to roughly 26,500 people. It was settled well before the Republic, which usually means a core of Federal and Greek Revival homes surrounded by later infill — plenty of hand-framed structure, and rooflines never meant to carry today's insulation. For a contractor that makes it a mid-sized town with a genuinely varied housing stock, from the oldest streets to recent construction. It sits in Southern New Hampshire. It is about 50 miles from our Northborough shop — about an hour in normal traffic. Being close keeps estimates and site visits quick.
We treat your Merrimack home the way we'd want our own treated: clean job sites, clear daily communication, and respect for your time and property. When the decks project wraps, the only thing we leave behind is work you'll be proud to show off.
We stand behind what we build. If something isn't right after we've gone, you call and we come back — that's the point of being licensed, insured and easy to find in Merrimack, rather than a number that stops answering.
For the full detail on how we approach this work — materials, process and what to expect — see our decks page.
What's included
- ✓Composite & wood decks
- ✓Railings, stairs & lighting
- ✓Pergolas & outdoor living
- ✓Permits handled for you
- ✓Built to code & built to last
- ✓Custom design to fit your yard
Recent decks projects near Merrimack
🔍 Click any photo to view it larger
Do you provide decks in Merrimack, NH?+
Yes — Merrimack is right in our service area. We're a Northborough-based, licensed and insured contractor (MA HIC #196540) and regularly serve Merrimack homeowners across Southern New Hampshire with professional decks. Call (508) 691-8113 for a free estimate.
How far is Waterfront Construction from Merrimack, NH?+
Our shop is at 44 Bearfoot Road, Northborough, MA 01532, about 50 miles from Merrimack — about an hour in normal traffic. That is close enough for us to get out for an estimate quickly, come back for a snag without making a production of it, and keep crews on your job rather than stuck on the road.
Have you worked near Merrimack?+
Yes. One of our documented projects nearby is the Composite Pool Deck — Salem, NH — A low-maintenance gray composite deck wrapping an above-ground pool in Salem, NH — from framing through the finished, furnished deck. You can see the full photo album on our site, along with other Southern New Hampshire jobs. We're happy to give references closer to Merrimack on request.
Which nearby communities do you also cover?+
We work throughout Southern New Hampshire from our Northborough base — including Salem, Derry, Pelham, Nashua and Londonderry. In total we cover 150+ towns across MetroWest, Greater Boston, the North Shore and Southern New Hampshire.
Do I need a permit for decks in Merrimack, NH?+
It depends on your town. New Hampshire has no statewide residential enforcement — each municipality sets and enforces its own permit rules under RSA 155-A. We confirm the requirement with your building department before we start, then file whatever it asks for. We file it with Merrimack's building department as a Registered Home Improvement Contractor (MA HIC #196540).
Composite or wood — which is better?+
Composite costs more up front but needs almost no maintenance and lasts longer. Wood is budget-friendly and classic but needs periodic sealing. We help you weigh the trade-offs.
Our work near Merrimack — Southern New Hampshire
Real Waterfront Construction jobs in and around Southern New Hampshire. Open any one for the full photo & video album.
In New Hampshire, permit rules are set locally — not by the state.
New Hampshire’s State Building Code (RSA 155-A) adopts the 2021 IRC, but there is no statewide residential enforcement office: each municipality adopts and enforces it through its own building department. That means work exempt in one town may need a permit in the next. We confirm the requirement with your building department before we start, and we file whatever it asks for.
For decks work in the Town of Merrimack, the filing goes to Merrimack's building department. As a Massachusetts Registered Home Improvement Contractor (HIC #196540) we pull the permit in our name, book the inspections and meet the inspector on site — you never have to take a day off for it. Requirements do change, so we confirm the current position with Merrimack's office before any work starts.
Source: New Hampshire State Building Code (RSA 155-A), which adopts the 2021 IRC and is enforced locally. This is general information, not a substitute for your building department's own determination.
Decks near Merrimack — Southern New Hampshire
We also provide decks across Southern New Hampshire from our Northborough base:
More home services in Merrimack, NH
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