Foundation installation in Boston MA - a dry basement and walls that stay put
Need a new foundation under a house or an addition? We plan the drainage, coating and pour together so the walls stay dry and steady.
- Licensed and fully insured.
- Free estimates at your property.
- We respond within 1 business day.
The parts of a foundation installation we build
Footings and poured walls
The footing spreads the weight of the house at the bottom of the dig, and the poured walls on top carry it and hold back the soil around your basement.
Drainage and wall coating
This is everything outside the wall that moves water away from it. On a damp lot it matters most, because a dry basement starts out here.
How does a new foundation get built in Boston?
Foundation installation in Boston means digging out and building the footings and walls a house or addition sits on, deep enough that the building doesn't move, with drainage and a coating outside to keep water away from the basement.
Most people who call about this are adding on, building on a lot, or living with an old foundation that has let water in or shifted for too long. The price moves with how long and tall the walls are, how hard the dig is, how wet the soil turns out to be and how much drainage and coating that calls for. The schedule turns mostly on the permit and the season. Some of that I'll only know once the ground is open, but the estimate I write after seeing your lot gives you your own figure. A new foundation in Boston needs a city permit, so we line that up before anything else.
Foundation installation from the dig to the backfill
We put as much thought into keeping water away from the walls as into building them, so before the dig I go over the drainage and coating plan with you.
Layout and dig
We mark the walls out from your plans and dig to the depth they call for, watching how wet the soil gets.
Footings and walls
Our crew forms and pours the concrete footings first, then the walls, with rebar inside, steel bars that keep cracks from opening up.
Coating and drainage
We coat the walls and set the drainage while the outside is open, because once the dirt goes back, nobody reaches that face again.
Backfill and grading
We backfill and grade the dirt away from the walls, and if the new building needs paving, we can add concrete parking lot building.
Why Boston owners call Ironset for foundations
I spent years patching steps, walks and slabs on rental buildings around Boston and kept asking why they broke down. I started Ironset in 2023 to build concrete that holds up, starting with the parts nobody sees. Call (617) 226-2081 to talk it through.
The person who quotes it is on site
I come out, look over the lot and write the estimate myself. Then I work alongside our crew while they form, pour and finish.
Fully insured while your yard is open
We're licensed and fully insured. That matters on a job like this, with an open excavation beside your house until the backfill goes in.
Known for the awkward jobs
We're best known for the jobs that keep failing, like a wall that holds water behind it. A wet lot is the kind of problem we like working out.
What happens when you call us about a new foundation in Boston?
Every foundation is planned around your lot, your plans and the permit, so the first visit is as much about what's under the ground as what you want built.
or call (617) 226-2081
Get in touch
Call (617) 226-2081 or send the form, and we'll set a time for me to come see the property.
A look at your lot
I walk the site, check the soil and the slope, and ask what's gone wrong there before, like water in the basement or a wall that's shifted.
Your written quote
My quote shows what goes under and behind the concrete, not just what you'll see. Permits come first, then we pour, and I walk the finished job with you.
Get a free estimate for your foundation, drainage and coating
Send your address, the type of home and whether you live there, since that shapes the permit. We reply within one business day, and I come out for a free estimate with no pressure to book.
Foundation questions we hear in Boston
How much does foundation installation cost in Boston?
There's no honest single number for a foundation until someone has seen your lot, because most of the cost sits in the ground. Beyond the size of the walls, a wet lot can call for more drainage and a heavier coating. The long-form permit also asks for plans stamped by a Massachusetts registered engineer or architect and a certified plot plan showing your property lines, and those take their own work. I'll go over all of it at the estimate and put it in writing.
What happens if foundation work starts before the permit is issued in Boston?
Inspectional Services may charge double the permit cost or issue a building code violation if work begins before the permit is issued. That's why we line up the permit first and start digging after it's in hand.
Who has to oversee foundation work on a 1- or 2-family home in Massachusetts?
The state requires a licensed construction supervisor or a registered design professional to oversee construction on 1- and 2-family homes, though the state's rules include language exempting some homeowners. You can ask any contractor who on the job holds that license. Separately, contractors working on an existing, owner-occupied home with one to four units have to register as Home Improvement Contractors, a rule that doesn't cover new construction or investment, vacation and second homes.
What is the best way to keep a new foundation dry?
Drainage does most of the work. Guidance for cold-climate building calls two things critical against frost heave, which is the ground pushing up as it freezes. The first is free-draining soil or a drainage mat against the outside of the wall. The second is a drain pipe along the footing. When you're comparing bids, check that each plan includes both the backfill and the pipe.
How do I choose a coating for a foundation on wet soil?
On wet soil, plan for a thick rubberized asphalt coating, which stays flexible in the cold instead of turning brittle. A thin asphalt coat cuts how much moisture the wall soaks up from damp ground, but it won't stop water pushing against the wall under pressure. We'll talk through which one your lot calls for at the estimate.
Can concrete be poured in cold weather in Boston?
Yes, but a cold-month pour needs a plan to protect the fresh concrete through the stretch after the pour while it cures and gains strength. The industry's cold-weather guide counts it as cold-weather concreting whenever the air drops, or is expected to drop, below 40°F during that protection period. When a job lands in the colder months, we plan the pour date and the protection together.
Other concrete work around a foundation
Concrete footings
Adding a porch, a deck or a small addition? The footings under it need the same care with soil and water as a full foundation.
Explore Concrete footingsConcrete parking lot building
A new building often needs parking beside it, and a lot poured on a packed, well-drained base is far less likely to sink or hold puddles.
Explore Concrete parking lot buildingFoundation raising
If your existing foundation has settled and left floors sloping or doors sticking, raising it may make more sense than tearing it out and starting over.
Explore Foundation raising
Foundation installation in Boston: permits and wet ground
A new foundation in Boston needs a permit from Boston Inspectional Services, and it starts with a long-form application. You can begin online, but the city still has the applicant come into its office. If you own and live in a 1- or 2-family home and are doing the work yourself, you can apply on your own. A unit owner in a building with three or more homes has to hire a licensed contractor. When we do the job, we help line up the permit before the dig and walk you through what the office needs from you.
The city maps what it calls its GCOD over filled land, where many buildings rest on wooden piles. Some development projects there have to add groundwater recharge systems, which send water into the ground instead of onto the street, and that can change how we plan a foundation's drainage. If your lot might sit in it, ask us, and if it isn't clear, we check with the city's building office instead of guessing. We're based in Boston and work across the city and the cities around it, and we keep the same close eye on wet ground on jobs in Chelsea and Revere.