Concrete cutting in Concord CA - clean openings cut after the slab is scanned
Need a pipe trench through a garage floor, a hole through a wall or a broken slab section gone? We scan first and cut clean.
- Licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
How do you get a clean cut or hole through concrete in Concord?
Concrete cutting in Concord, CA is how we open a slab or wall without breaking up the concrete around it. A diamond saw blade cuts the straight lines for an opening, a removal or a clean edge, and coring uses a hollow diamond bit to drill a round hole for a pipe, a conduit or an anchor.
Most of the time you don't want concrete cutting for its own sake. You've got a remodel, a repair or a new pour planned, and a slab or wall is in the way. The price mostly turns on how thick the concrete is, how long the cut runs, whether there's steel inside, whether it's a floor or a wall, and how much broken concrete has to be hauled off. The schedule turns on what we find before the saw starts, because a cut through a wall that holds weight waits on an engineer and work at the curb can wait on the city. I'll look at it with you and put your own number in writing, so you know what you're paying for before anyone picks up a saw.
How do you know your concrete needs cutting?
A sunken, broken slab section
A piece of driveway or patio has cracked and dropped below the rest, usually because the dirt under that piece settled or washed out. A saw cut lets that piece come out alone, and waiting lets the crack keep running into concrete that's still good, so the piece you have to replace gets bigger.
Plumber needs under the floor
You're adding a bathroom, or the plumber traced a bad line under the garage or basement slab. Breaking it out with a hammer alone tends to crack the floor well past where it needed to open, which leaves you more floor to patch.
A wall in the way
You want a door into a basement or a hole through a concrete wall for a vent or a pipe. That wall may be carrying weight or hiding steel, and hacking at it by hand leaves a ragged opening and can crack what's around it.
How we handle concrete cutting, from scan to cleanup
We start by marking the line with you, because a saw cut is permanent and I'd rather you see exactly where it runs. Before the saw starts we scan the concrete for rebar, the steel bars that give a slab its strength, for post-tension cables, which are steel cables pulled tight inside some slabs, and for live electrical lines, so we know what's in the path. If the cut goes through something that holds up the house, we bring in the engineer first and cut to their plan. Then we pick the saw that fits the surface, cut wet so the water cools the blade and holds the dust down, and catch the slurry, the gray mud the cutting water turns into, so it stays out of the drains. Last, we break out and haul the cut pieces and leave a clean edge for whatever comes next.
Cutting is usually the first half of a bigger job. When a sunken stretch comes out of a driveway, the gap needs a packed base and a fresh pour, which we handle as part of concrete driveway building. When the saw squares off an old slab or opens room for a new door, concrete patio construction picks up right at the cut line.
Removing a slab section
This suits a driveway, patio or walk where one area has failed and the rest is sound. We cut the bad area into pieces we can lift out, which leaves a straight, square edge for new concrete to meet.
Trench cuts for new lines
This suits garage and basement floors where a plumber or electrician needs to get under the slab. Two parallel cuts let us take out a narrow strip, so the rest of the floor stays put and the patch stays small.
Core holes for pipe and anchors
This suits a single pipe, conduit or anchor bolt that has to pass through a slab or wall. A round core leaves a smooth hole close to the pipe's size, so it's easier to seal than a hole broken out by hand.
Get a written price for your concrete cut
Send the surface, about how long the cut runs and where it is, and we'll reply within one business day. I'll come out for a free estimate, put the price in writing, and there's no obligation.
(925) 536-0945- Based in
- Concord, CA 94519
- Hours
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 8 AM–9 PM
What happens after you call us about a concrete cut in Concord?
From your side, a cutting job comes down to three steps, and you'll be dealing with me, the owner, at each one of them.
Send us the details
Call (925) 536-0945 or use the form and tell us the surface, roughly how long the cut runs and where it is on your property. We'll set a time for me to come see it.
Walk the line with me
I look at the concrete with you, explain which cut or core fits and why, and put the estimate in writing. You'll see what drives the number, like thickness, steel and haul-off, before you decide anything.
Cut, clean up, walk through
Once you're set, we sort out the city or county side, then do the work with me on site. When the pieces are out, we walk the finished cut with you so you can check the edges and the cleanup.
Why Concord homeowners call King Concord Concrete Works for cutting
You deal with the owner
I come out to look at the job and write the estimate, and I work on site with our small crew of form setters and finishers. Most of our calls come from homeowners in Concord and the cities around it, and the person you meet at the estimate is the one you'll see on cutting day.
Licensed and insured for saw work
We're licensed and insured. That matters more on cutting than on most concrete work, because a saw can meet things nobody drew on the plans, and you shouldn't be the one carrying that risk.
Options explained before you sign
We've been in business since 2020. We're known for laying out the choices plainly before anyone signs, so on a cut that might mean showing you why a core hole beats a saw line for your pipe, and you understand the price instead of just trusting it.
If you've got a line in mind, send us the details or call (925) 536-0945, and I'll set a time to come take a look.
Cutting curbs, sidewalks and driveways in Concord
If your cut reaches the curb, the sidewalk or the part of the driveway that meets the street, that's the public right-of-way, and the City of Concord issues Encroachment Permits for work there. The city's list names curbs and gutters, sidewalks, driveways and sewer laterals, but not concrete cutting by itself, so whether a cut alone needs one isn't settled until someone asks. The permit goes to whoever proposes to do the work, so we check with the city or county that covers your address and handle the paperwork when one is needed. If you want a head start, the city's Project Pal tool helps owners figure out which permits a project needs and estimate the fees.
The cutting calls we get around here tend to be older driveways and patios with a sunken section, and garage floors that need a trench for new plumbing, and we see the same work in Pleasant Hill and Martinez. Street gutters lead to storm drains, and a California stormwater group's guide says to keep saw-cut slurry out of storm drains and creeks, which is why our slurry never gets hosed to the street.
Questions about concrete cutting in Concord
How much does concrete cutting cost in Concord, CA?
Across the US, concrete cutting usually runs about $3 to $10 per linear foot of cut. Where yours lands depends on how thick the concrete is, whether there's steel in it, whether it's a floor or a wall, and how much has to be broken out and hauled. I'll give you your own figure in writing after I've seen it.
What is the best way to cut a concrete floor compared to a concrete wall?
Floors and slabs get a flat saw, a walk-behind machine pushed along a marked line, and walls get a wall saw that runs on a track bolted to the surface, which also handles overhead cuts. The surface decides the saw, and that track is what keeps a wall cut guided and straight instead of freehand. Round holes in either one are a coring job.
Why do you need to scan concrete before cutting it?
Scanning finds rebar, post-tension cables and live conduit before the blade reaches them. One trade field guide makes it the top rule and uses GPR, a ground-penetrating radar scanner, for it, because cutting a tensioned cable or a live line can kill someone. Whoever you hire, ask whether a scan comes first on your job.
How do I keep dust down when cutting concrete?
Put water on the blade, because national workplace safety guidance says that substantially cuts the dust from materials with crystalline silica, and concrete is one of them. One trade field guide advises cutting wet, or cutting dry only with a vacuum dust extractor running the whole time.
Do I need an engineer to cut an opening in a concrete wall?
You do if the opening is structural, because one trade field guide says any structural opening, or any cut through structural steel, needs the structural engineer of record, the engineer responsible for that structure's design. If the wall carries weight or you aren't sure, plan on the engineer's input before the saw starts, and I'll tell you at the site visit if I think yours is one of those.
What license covers concrete cutting in California?
California lists concrete sawing, breaking and coring under its D-6 Concrete-Related Services Contractor classification. It's worth asking any contractor you're considering which license they work under before they start cutting.
Related concrete work that often follows a cut
Concrete driveway building
When a cut removes a cracked or sunken stretch of driveway, the open ground still needs a packed base and a new pour that ties in cleanly.
Concrete patio construction
If you're adding a door, widening a walkway or squaring off an old patio edge, a new slab can start right where the saw line stops.
Service areas for concrete cutting near Concord
King Concord Concrete Works is based in Concord, California, and we work in the cities around it. The 12 cities below have their own pages, including Walnut Creek and Antioch, and if yours isn't listed, call and ask.
Concord, CA
Get your concrete cut priced in writing
A short call tells you whether your cut is a simple slab job or one that needs an engineer or the city first, before you plan the rest of the project around it.