Foundation installation in Merrimack NH - a house that stays level and dry
Planning a new house or addition? We build the foundation to shed water and stand up to frost, so the house stays dry.
- Licensed and insured.
- Free in-person estimates.
- We reply within 1 business day.
What goes into a new foundation in Merrimack?
Foundation installation in Merrimack means building the base your house rests on, whether that's basement walls, crawlspace walls or a slab, so it handles water and frost and the house above stays level and dry.
Most people who call us have a lot, a plan for a house or an addition, and a lot of questions about what goes underneath it. The price mostly comes down to the foundation type, its size and wall height, how much digging and grading the lot needs, and how the drain pipe and backfill are done. The schedule usually turns on permit review, the weather and when the ground is ready to dig. You'll get your own figure in the estimate I write after seeing the lot. If you're leaning toward a one-level home with no basement, our page on slab foundation building goes deeper on that option. We'll also help you find out which office handles your job and get the permit paperwork moving early, because that review often sets the start date.
How do you know your project needs a new foundation?
A new house on open land
Every new house needs a foundation, and the walls, drainage and backfill all get settled before the framer shows up. Leave it until the framing crew is booked and the dig gets rushed, which is when drainage corners get cut.
An addition off the house
A new room, garage or porch needs its own foundation that meets the existing house cleanly. If it's planned late or built shallow and quick, you can end up with a joint that shifts and doors that stop closing right.
Water sitting on the lot
Puddles that hang around after rain, or ground that slopes toward where the house will go, tell us water handling needs extra attention. Ignore that now and it usually shows up later as a damp basement that's far harder to fix once the house is on top.
How we handle foundation installation
At the estimate we go over which foundation type fits your lot and your plans, and we talk about the drain pipe and backfill, because keeping water away from the walls is the heart of a good foundation. On the job we lay the house out on the lot, dig to the depth your design calls for and pack the subgrade, the ground the footings sit on, so they aren't resting on loose dirt that settles. Then come the footings and the walls or slab, formed and poured with rebar, the steel bars inside that keep the concrete from pulling apart. Once the walls have had time to cure and gain strength, we set the drain pipe, backfill and grade the dirt so rain runs away from the house. That drainage work gets buried on day one, so it's the first thing people want to trim from the budget, and it's the last thing I'd trim, because water against the wall is where most foundation trouble starts.
Every foundation starts with concrete footings, the wide strip of concrete under the walls that spreads the weight of the house, and we also pour them on their own for decks, porches and garages. Builders and small businesses putting up a building often need the ground around it done too, and our concrete parking lot building gets the same care with the base and drainage.
Full basement
This suits you if you want storage, room for the furnace and water heater, or space to finish later. It means the most digging and the most wall below ground, so drainage around it matters most.
Crawlspace
Short foundation walls lift the house off the ground and leave room underneath to reach pipes and wiring. It works when you don't need a basement but still want access below the floor.
Slab on grade
The house sits on a concrete slab poured at ground level with no space underneath. It's a good fit for one-level homes, garages and many additions where you don't need room below.
Get a free foundation estimate at your lot
Send the form and we'll reply within one business day to set a time. I'll come out myself, look at the lot and your plans, and leave you a free estimate on site with no obligation.
(603) 377-5028- Based in
- Merrimack, NH 03054
- Hours
- Mon–Fri: 8 AM–10 PM, Sat–Sun: 7 AM–9 PM
What happens when you call us about a foundation in Merrimack?
From your first call to the last pour, you'll know who's coming, what we're doing next and why we're doing it.
Call or send the form
Reach us at (603) 377-5028 or through the form, and we'll set a time to meet at your lot. Tell us roughly what you're building so I can bring the right questions.
I walk the lot with you
I look at the ground, ask how you'll use the space and go over which foundation type fits. The estimate lays out the type, the digging, the drainage and backfill, and what the price covers, so you can line it up against other bids.
We start permits and prep
Once you say go, we get the permit paperwork moving with the office that handles your job. When it's cleared, our crew digs out and prepares the ground for the footings.
I run the pour myself
I'm on site with our crew for every pour and finish, and we give the concrete time to cure before backfill goes in. Before we leave, I walk you through what to watch for as the house goes up.
Why Merrimack homeowners call Quality Merrimack Concrete for foundations
You deal with me throughout
I come out to look at each job and write the estimate myself, and I'm on site running our own crew when we pour. The person who promised you a drain pipe is the one standing there when it goes in.
Pouring concrete here since 2013
I started this business in Merrimack in 2013 after years on restaurant lines, where you learn that prep and timing decide how things turn out. Concrete works the same way, so we don't hurry the digging, the base or the pour.
Licensed and insured for this work
We're licensed and insured. On a job this size, with heavy equipment and open excavation on your property, that's something to confirm with anyone you're comparing.
Every foundation we pour is backed by our satisfaction guarantee. When you're ready, send us your project details or call (603) 377-5028 and I'll set a time to come see the lot.
Building a foundation in Merrimack: permits and planning
Sort out permits during planning, before anyone digs. In Merrimack, the Town of Merrimack's Building Division issues building permits, and you can apply online with the Building Division. Depending on the project's size, the state's Alteration of Terrain Program can also require a permit for disturbing the land, and every building in New Hampshire has to follow the state building code. If your lot sits within the protected shoreland near the water, building or changing the footprint is regulated work that typically needs a shoreland permit from the NH Department of Environmental Services, plus a wetland permit for work within a waterbody's bank. For inland lots, that's something to check rather than something to plan around. We'll help you find out which office handles your job and help get the paperwork moving, and since that office decides what your job needs, we build to what they ask.
Most foundations we pour around here are for new houses, additions and garages on lots that need some digging and regrading so water runs away from the new walls. We plan the same way on jobs in Manchester and Nashua, working from Merrimack across the cities around it.
Questions about foundation installation in Merrimack
Which type of foundation is best for a new home in New Hampshire?
The right type depends on your lot's slope and whether you want space below the floor. One builder's guide calls a frost-protected shallow foundation, which uses insulation around the edge so it doesn't have to go as deep, a practical alternative to a deeper, more costly foundation in cold regions, and it suits slab homes on moderate to low slopes best. The same guide says it can also work with a walkout basement when the downhill side is insulated, and that it's useful on additions because it keeps disruption to the site low.
What causes frost heave under a house foundation?
Frost heave happens when water in the ground freezes and expands. It can lift the edge of a house, crack the foundation and leave doors and windows hard to open, which is why getting water away from the walls matters so much.
How do I keep a new basement foundation dry?
Basements and enclosed crawlspaces get a damp-proofing coating on the outside of the walls while they're being built, and then the water needs a way out. No damp-proof coating is fully waterproof, so it works alongside free-draining backfill or a drainage mat against the wall and a drain pipe at the footing, which in a cold climate is critical to guard against frost heave. When you compare bids, ask each contractor how their backfill and drain pipe will carry water away from the new walls.
Do I need a permit to build a foundation in Merrimack NH?
The Building Division decides that for your job, and it handles building permit applications in Merrimack online. Land disturbance on larger projects and lots within the protected shoreland can bring in state permits too, as covered in the permits section above. We'll help you figure out which office handles your job and get the paperwork started.
How much does a new foundation cost in Merrimack?
The cost is set by your lot and your plans, so a real number comes from seeing the site. A full basement costs more than a crawlspace or slab because of the extra digging and wall, and size, wall height, grading, drainage and how easily trucks can reach the spot all move the price. I'll walk the lot and put it all in writing for you.
How long does it take to install a house foundation?
The timeline mostly comes down to the foundation type, the permit review and the weather. A builder's guide notes that a slab-style frost-protected shallow foundation can go in with one pour of concrete, which speeds construction, while basement walls take more steps, from digging and footings through curing, drain pipe and backfill. We'll talk through timing for your job when I come out.
Related concrete work for your new build
Concrete footings
Planning a deck, porch, garage or small outbuilding? Footings poured on solid packed ground carry the weight and keep the structure from settling or shifting over time.
Concrete parking lot building
Putting up a shop or small commercial building? A parking area built on a deep, well-packed base handles daily traffic and drains water off instead of holding it.
Cities where we install foundations
Quality Merrimack Concrete is based in Merrimack, NH, and our crew builds foundations across the cities around it, from Bedford to Tyngsborough, MA. The 12 cities below have their own pages, and we work in plenty of places nearby too.
Merrimack, NH
Get your foundation planned before you dig
Call (603) 377-5028 or use the form with your lot's address, whether it sits near water and your plans for the house or addition, so the first visit gets straight to what your foundation needs.