Basement Flooring in Martinez CA - a floor that holds up on a tested slab
Damp spots, a musty smell or old tile lifting off the concrete? We test the slab first, then put down a floor built to stay down.
- Licensed and fully insured.
- Free estimates at your property.
- Expect a reply within 1 business day.
Basement flooring options for your slab
Epoxy coating on the slab
An epoxy coating bonds to ground concrete and cuts the moisture coming through the slab, with far less work than insulation laid on top. It suits low basement ceilings.
Sealed or polished concrete
We grind the existing slab and seal or polish it, so the concrete itself becomes your floor. It suits a dry, sound slab you want plain and easy to mop.
What does a basement floor in Martinez need before it goes down?
Basement flooring in Martinez starts with the concrete slab, not the finish. We test the slab for moisture and prep it, then put down a floor that suits how damp the concrete is and how you'll use the room.
Most calls start with a basement that smells damp, carpet that feels cool and clammy, or old tile coming loose from the concrete. The price moves with the size of the room, what's on the floor now and how it has to come up, how many cracks and low spots the slab has, and the finish you pick. The schedule turns on the moisture test and on whether water from outside has to be fixed first. I'll give you a written estimate after I've seen the slab, so you have your own figure before anything gets ordered.
Basement flooring, from slab test to finish
We test the slab before you pick a floor, because the moisture reading and the shape the concrete is in tell us what it can take. Then we plan the prep around that.
Slab test first
We test the slab before you pick a floor, so the finish matches what the concrete is really doing.
Outside water fixed first
If water is getting in from outside, we tell you to fix that before you spend anything on a new floor.
Old flooring up, low dust
We take up old tile and glue with low-dust stripping and removal unless we know what's in them, since they can hold asbestos.
Grind, repair, coat or seal
Our concrete grinding and surface preparation gives the finish clean concrete to grip, then we fill cracks and coat the slab or apply concrete sealing.
Why Martinez owners call Stonefield for basements
I learned floor coatings on my own garage, then beside experienced crews. Most peeling floors started on a slab nobody tested or ground right, so we spend our time on prep and I explain what we'll do before you sign. Call (925) 231-8429 to set up a visit.
I look at your slab myself
I come out myself to look at the floor and give you the estimate. Our crew does the prep and the install, and I'm on the job with them.
Running this business since 2017
We've been coating concrete since 2017, from home garages to working shops, and the floors we're known for are the ones that stay bonded to the slab.
Licensed and fully insured
We're licensed and fully insured. California's licensing board counts preparing the surface as part of a flooring contractor's work, so ask any contractor how they'll prep yours.
What happens after you call about your basement floor?
We plan a basement job around what the slab test shows and how you'll use the room, so you know what the prep involves and how long the space is out of use before we start.
or call (925) 231-8429
Call or send a message
Call (925) 231-8429 or send a message through the form, and tell me what you're seeing on the basement floor.
I come out and test
I come out to look at the slab and test it, and I ask how you'll use the room, since that decides which floor fits.
Your written estimate
It tells you what we'll do and why before you sign. Once you say go, we plan the prep and tell you how long the room is out of use.
Get a written estimate for your basement floor and slab prep
Tell us about any dampness, what floor you have now and how old it is, and whether you're inside city limits. We reply within one business day to set up a free on-site estimate, with no obligation.
Basement flooring questions we hear
Do I need a moisture test before putting new flooring in my basement?
Yes, flooring makers generally require a moisture test on concrete before a floor goes in. Too much moisture rising from the slab can loosen the floor, wear down the finish and lead to mold and other growth underneath. We test before you choose and order a floor, so you don't buy something the slab can't take.
How long is a basement slab moisture test good for?
A moisture test only shows the slab's condition on the day it was taken. If someone tested your slab a while back, ask when, because conditions change. We test again before anything is ordered.
Will epoxy paint fix a damp basement in Martinez?
Not when the water comes from outside. Sealing openings in the slab and coating it with epoxy won't stop dampness caused by poor grading, missing gutters or a high water table, so that gets fixed first. If your slab already has a plastic vapor barrier or continuous insulation under it, sealing the openings is enough and no surface coating is required.
Is engineered wood a good choice for a basement floor?
It handles moisture better than solid hardwood, but it isn't waterproof. One cost guide says solid hardwood is open to water and moisture damage, while engineered wood resists moisture better, though not fully, and can be refinished only once or twice. If your slab tests damp, weigh that before you order wood.
How much does basement flooring cost in Martinez?
Your price comes from the slab and the finish you pick, and I give it to you in a written estimate after I've seen the floor. Tearing out old tile and glue, repairing a lot of cracks or dealing with a damp slab adds work. A dry, sound slab that only needs grinding and a sealer costs less.
What is the best way to handle radon when redoing a basement floor?
Consider a radon test before the floor work starts. If you need a radon system, it goes in before any insulation, vapor barrier or water barrier covers the slab, so the order of the work matters.
Other work your slab may need
Concrete Grinding & Surface Preparation
If paint, glue or an old coating is stuck to your slab, grinding takes it back to clean concrete that a new floor can bond to.
Explore Concrete Grinding & Surface PreparationConcrete Sealing
A dry, sound basement slab may only need a sealer, which keeps the concrete from soaking up spills and shedding dust and leaves it easy to mop.
Explore Concrete SealingConcrete Floor Stripping & Removal
When a basement has layers of old tile, carpet pad or adhesive, we take them up first so the slab underneath can be tested and prepped.
Explore Concrete Floor Stripping & Removal
Basement flooring in Martinez and the cities around it
Inside Martinez city limits, the City of Martinez Building Department issues building permits to homeowners and licensed contractors. Contra Costa County handles permits only for unincorporated areas and a few cities, Hercules among them, and it says almost every project in unincorporated areas needs one, interior remodels and repairs included. Whether your basement floor needs a permit isn't settled until you ask, so check with the city's Permit Center or the county before work starts. If it does, we sort out with you which office covers your address and who pulls it, and we work with that office from there.
We're based in Martinez and take jobs in the cities around it in Contra Costa and Solano counties. A lot of the basement floors we see carry layers from past owners, carpet over tile over glue, so we plan for removal and a slab test on each one, the same as on jobs in Concord.