Garage floor concrete in Cambridge MA - a floor built to handle winter salt
Garage slab cracked, flaking or worn down by road salt? We pour a new floor with a mix chosen for New England winters.
- Fully licensed and insured.
- Free on-site estimates.
- Replies within 1 business day.
What goes into pouring a new garage floor in Cambridge?
Garage floor concrete is a new poured slab for your garage, and in Cambridge we pour it with a mix meant for the salt your car drags in all winter. The slab takes about a month to fully cure, which is the slow hardening that gives concrete its strength, though you'll be using it well before then.
Most people call us when the old floor is cracked, flaking or dusting up under the car, and they want to know what a new one costs and how long the garage is out of use. The price mostly follows the size of the garage, whether the slab needs rebar, which is steel set inside to keep any cracks tight, and whether you want color or stain on top. The schedule turns on the weather and on the stretch of light use right after the pour, and my estimate spells out what's included and what isn't so you can compare it line by line. We also check with the city's building office whether your job needs a permit and take it out ourselves when it does.
How do you know your garage floor needs replacing?
Cracks across the floor
Long cracks that run across the slab, or ones that keep getting wider, usually mean the slab moved or was never cut with joints to tell it where to crack. Left alone, every winter of water and salt in those cracks breaks the edges down a little more.
Top layer flaking off
When thin flakes pop off and leave rough, pitted patches, salt and freezing have usually gotten into the surface. Light flaking is mostly cosmetic and can often be repaired, but once it spreads and keeps getting worse, patching stops making sense and a new slab starts to.
Dust that never sweeps clean
A floor that keeps shedding gray powder usually has a weak top layer, often from a pour done in midday heat or a surface worked too hard. It wears fastest where the tires sit, so the dusting slowly turns into rough, low tracks.
How we pour a garage floor concrete slab
I start by measuring the garage and checking the height at the door, then our crew digs out and packs a gravel base, because that's what the slab sits on and a base that's only raked smooth tends to settle later. A garage floor takes salt from every car that pulls in, so we order a mix meant for that, set rebar where the slab needs it and pour early enough in the day that heat doesn't rush the top. Our finishers bring the surface to a smooth or light broom finish, a fine texture that gives your shoes some grip, and stop there, because working the top too long weakens the very layer that has to stand up to salt. Then we cut control joints, shallow grooves that give the slab a straight line to crack along instead of a random one, and I tell you when the floor is ready for light use and when it can take more. If the budget has to give somewhere, I'd keep the base and trim the finish, since nobody sees the base on day one but it decides how the floor looks in ten years.
A new floor is a good time to think about what's around it. If you'd like color or a stained look instead of plain gray, we can plan decorative concrete into the same job, and if the garage sits at the bottom of a slope, concrete retaining walls can hold the ground back from the slab and the driveway.
Plain slab
This suits a one- or two-car garage that holds cars, bikes and storage, because a packed base and well-placed joints do most of the work there. It keeps the job simpler when the floor won't carry anything unusually heavy.
Slab with rebar
This suits a floor that will carry a truck, a heavy workbench or equipment, because the steel holds any cracks tight so the pieces stay level with each other. I'll tell you at the estimate which one your garage needs and why.
Get a written estimate for your garage floor
We'll reply within one business day to set up a free visit. I'll measure the garage and leave you an estimate with no obligation, listing what's included and what isn't.
(617) 613-6953- Based in
- Cambridge, MA 02139
- Hours
- Mon–Fri: 7 AM–9 PM, Sat–Sun: 6 AM–9 PM
What happens after you call about a garage floor in Cambridge?
Here's how a garage floor job goes from your first call to the day you can use the floor, and who you'll be dealing with at each step.
Call or send a message
Call (617) 613-6953 or use the form, and we'll get back to you to set a time to see the garage.
I measure and write it up
I come out, measure the garage, ask how you use it and write up an estimate that lists what's included and what isn't. You'll know what you're paying for before anything starts.
We plan and pour the floor
Once you're ready, we take care of any permit, pick a pour date around the weather and do the work with me on site. When the floor is in, we clean up before we leave.
Why Cambridge homeowners call M&K Cambridge Concrete Company for garage floors
I come out for every estimate
I measure and price every job myself, and I'm on site with our crew while the work gets done. The person who quoted your floor is the one watching the base go in and the joints get cut.
Licensed and insured for Cambridge work
We're fully licensed and insured. Cambridge issues building permits only to construction supervisors licensed by the city or to homeowners working on the one- or two-unit home they live in, so it's worth asking any contractor whose name goes on the permit.
Finishing slabs, in business since 2023
I started out setting forms and pushing wheelbarrows on a small crew until I learned to finish slabs myself, and I opened this business in 2023. That's why I care most about the grade, the base and the joints that nobody sees once the concrete is down.
On a garage floor, the base and the mix matter more than anything you'll see on day one, so ask for an estimate and I'll go over both with you at the garage.
Garage floors and the work around them in Cambridge
In Cambridge, the Inspectional Services Department issues building permits, and one is needed before work that builds, alters, repairs or demolishes a structure, though not for ordinary repairs. Whether your new garage floor needs one depends on the job, so we check with the department before we start, and when a permit applies we take it out ourselves as your contractor and keep it posted at the job site where you can see it. If the job calls for a dumpster, the city requires a license for it, plus a permit from its Traffic, Parking and Transportation Department if it sits on a city street, and that goes into the plan before pour day.
A lot of garages here are older and tucked behind the house at the end of a narrow driveway, so we work out how the concrete and the wheelbarrows get in well before the truck shows up. On streets with no spare curb, it helps that contractors' trucks with Massachusetts commercial plates can park in the city's permit-only spots for up to three days in a row. We see the same tight lots and salted winter roads on jobs in Somerville and Brookline.
Questions about garage floor concrete in Cambridge
How much does a new concrete garage floor cost in the Boston area?
A concrete slab in the Boston area usually costs about $8 to $15 per square foot, according to one Boston pricing guide. That's what the market charges, not our price, and the guide prices reinforced slabs higher than plain pads and leaves out staining or stamping. Your own number comes from the written estimate after I measure the garage.
Can concrete be poured in winter in Massachusetts?
Yes, as long as the fresh concrete is kept from freezing, because concrete that freezes below about 25°F can lose more than 50% of its potential strength, according to a national concrete trade group. The group says to protect it from freezing until about two days after it's placed. Ask any crew how they'll protect a cold-month pour, and expect us to plan the date around the forecast.
How long before I can park on a new garage floor?
One Boston guide says a new slab should be walkable within 48 hours and suggests waiting a week before heavier loads. Plan on foot traffic and light storage that first week, and keep the car out until the week is up.
What is the best concrete mix for a garage floor in New England?
The same trade group advises good quality air-entrained concrete, a mix with tiny air bubbles built in, wherever concrete faces hard freezing and thawing. The state's building code rates Massachusetts as subject to severe weathering damage, so it fits a garage here. When you compare quotes, check whether each one names that kind of mix.
How do I protect my garage floor from road salt?
Hose the salt off the slab when the weather allows, because cars track in magnesium-based road salts, which the trade group says destroy concrete surfaces, along with ammonium sulfate and ammonium nitrate. Rock salt and calcium chloride are acceptable deicers. On a brand-new floor, the group suggests clean sand for traction instead of deicing chemicals where you can.
What causes a garage floor to flake and pit?
Flaking and pitting usually come from salt and freezing working into the surface, and a top that was overworked or poured in midday heat gives way sooner. Minor flaking is cosmetic and may not need fixing, while light to moderate flaking can be repaired, but a floor where it's heavy and still spreading often can't be saved. I'll tell you which one you have when I see it.
Related services for your garage and driveway
Decorative concrete
If you want the garage to look finished instead of plain gray, color and stain work can go on a new slab or one already in place.
Concrete retaining walls
When your garage or driveway sits below a slope, a poured concrete wall holds the hillside back so it stays off the slab and away from the door.
Service areas for garage floor work near Cambridge
M&K Cambridge Concrete Company is based in Cambridge, MA and pours garage floors across the cities around it, including Medford and Waltham. The 12 cities below have their own pages, but they aren't the only places we work.
Cambridge, MA
Get a written price for your garage floor
Call (617) 613-6953 or send the form with your garage's rough size and the old floor's condition, and I'll come out already knowing what to look at.