Concrete cutting in Renton WA - straight, clean openings right where you need them
Need a broken slab section removed, a hole for a pipe or an opening in a wall? We cut it straight, wet and clean.
- Licensed and insured.
- Free in-person estimates.
- We respond within 1 business day.
When does concrete need cutting, and how does it work?
Concrete cutting in Renton means opening or trimming a slab or wall with special saws and drills, so you get a straight cut, a clean opening or a round hole exactly where your project needs one.
Most people who call Form & Pour Renton Concrete Company about cutting are partway into a bigger job, like taking out a broken section to make way for a new driveway, running a drain line through a slab or opening a wall for a door. The price mostly depends on how long and deep the cut runs, whether there's steel inside and whether we're cutting flat on the ground or up a wall. The schedule usually depends on the prep before the saw starts, such as marking lines, checking for anything buried and getting any permit the city wants first. I'll measure your job at the estimate and put the scope in writing so you know what you're paying for.
How do you know a slab needs a cut instead of a full tear-out?
One broken section of slab
You may see one panel of your driveway or patio cracked through, chipping or sinking while the rest looks fine. That usually means the base under that piece gave way, and a straight saw cut lets us take out just that section without breaking ragged edges into good concrete. If you wait, water gets into the cracks and the damage tends to spread to the panels next to it.
A pipe needs to pass through
Sometimes a plumber, electrician or drain installer needs to get through a slab or a foundation wall. A core drill makes a clean round hole of the right size, while a hammer and chisel often cracks the concrete around the hole. Waiting usually holds up the other trade, and a rough hole is harder to seal against water later.
A raised edge people trip on
When two slabs shift, one edge can end up sitting higher than the other, and people catch their toes on it. The cause is often a root or a settling base underneath, and cutting out the high piece lets us see and fix what pushed it up. The lip usually grows each year, and it's a real fall risk for anyone walking it in the dark.
How we handle concrete cutting
Before we cut, I'd like the cut lines marked on the concrete and talked through with you, so we agree where every line runs and what might be buried near it. On a structural slab, we'll ask whether a scan makes sense first, because steel and lines inside the concrete don't show from the surface. Then we set up the saw that fits the cut, and we cut wet to keep the dust down. We vacuum up the slurry, the gray mix of water and concrete dust, as we go so it doesn't wash into the street drains. Once the piece is out, we haul it off and leave clean edges for whatever comes next.
Most cutting leads into other work. When we take out a broken or sunken piece, we usually pour it back as part of concrete driveway building or concrete patio construction. I'll be honest that the base under the new piece matters more than a neat finish on top, because a patch poured on raked-over dirt settles just like the old one did. If the budget is tight, that base is the last place I'd cut.
Flat sawing for driveways, patios and floors
A flat saw rolls across the surface and makes long, straight cuts in anything lying flat, which suits removing a damaged panel or cutting a slab back to a new edge. It's the tool most driveway and patio repairs start with.
Wall sawing for doorways and openings
A wall saw runs on a track mounted to the concrete and cuts straight vertical or overhead openings, such as a new door or window in a foundation wall. Cutting a wall can affect how a house carries its weight, so that's a job where we bring the city or an engineer into the plan early.
Core drilling for pipes and drains
A core drill bores a clean round hole through a slab or wall for a pipe, a drain, a vent or a conduit. It suits trades who need a hole of an exact size without cracking the concrete around it.
Get a written scope for your concrete cut
Send the form and we'll reply within one business day to set a time. I'll come out, measure the cut and give you a free written estimate, with no obligation to go ahead.
(425) 264-4089- Based in
- Renton, WA 98057
- Hours
- Mon–Sun: 7 AM–11 PM
What happens after you call us about a cut?
Here's how a cutting job usually runs for you, from the first call to the walk-through at the end.
Call and set a visit
When you call or send the form, I'll set a time to come out and look at the site. It helps to tell me then what's being cut and why.
Walk the cut lines together
On site I'll take measurements, look at the concrete and ask how you plan to use the space once the cut is done. We'll talk through where the lines go and what might be buried near them.
Get your estimate in writing
The written estimate explains the prep, the cutting and any pour that follows, along with anything we'll ask of you before the work day. We also go over what the city or county may want to see, and the scope is laid out so you can compare it with any other quote.
Cut, clean up, walk through
On the day we keep the area neat and cover what needs covering, such as siding, windows or plants near the saw. Before we pack up, we walk the finished work with you.
Why Renton homeowners call Form & Pour for concrete cutting
The owner measures your job
I come out myself to look at the job, take measurements and answer your questions, and a small crew I work with does the cutting while I check in as it goes. That way you talk to the person who made the plan, not someone reading it for the first time.
Pouring concrete since 2017
I started out pouring walkways and fixing steps for neighbors, learned beside experienced finishers and made it a full business in 2017. Because we pour as well as cut, I place the cut lines with the repair that follows in mind.
Licensed and insured for saw work
We're licensed and insured. A saw runs close to your foundation, your buried lines and sometimes your neighbor's property, so that coverage matters on this kind of job.
We check whose rules apply
A Renton mailing address doesn't always mean a property sits inside city limits, so I check which city or county office covers yours before we plan anything. That way we follow the rules that actually apply to your lot.
On a cut, the planning before the saw starts matters more than the cutting itself. When you're ready, call (425) 264-4089 or send us a few details about the cut.
Concrete cutting and repair work around Renton
In Renton, the building official issues permits to owners who build, alter, repair or tear down a structure, so a cut through a foundation wall or a structural slab may well need one. Whether your particular cut does is the city's call, and the city's Permit Services office answers questions about specific jobs. We go over it with you at the estimate, and we can handle the application or help you with yours.
Slurry is the local issue I watch most closely. Renton works with property owners to protect the Cedar River, Springbrook Creek and Lake Washington. The state's sawcutting guidance calls for vacuuming slurry during the cut and keeping it out of storm drains, which can mean covering the grated catch basin at the curb while we work. We take the same care on jobs in Kent and Tukwila, where a driveway cut often sits only a few feet from a street drain.
Questions about concrete cutting in Renton
How much does concrete cutting cost in Renton?
Across the US, professional saw cutting of an accessible 4 to 6 inch slab usually costs about $4 to $10 per linear foot. That's a national market figure, not our price. Steel inside the slab or a deeper cut raises the per-foot rate, wall sawing costs more again, and on a small job the minimum charge for bringing out the crew and saw can outweigh the footage. Your written estimate shows the cost of your own cut.
Do I need a permit to cut concrete near the street in Renton?
Yes, if the work is in the city's right-of-way, because Renton requires a Right-of-Way Permit for any activity there, including construction and digging. The right-of-way usually reaches 10 to 20 feet past the edge of the street pavement and can include the curb, gutter and sidewalk, so a driveway apron cut often falls inside it. I'll check where your cut sits at the estimate.
Does my concrete need to be scanned before it's cut?
It may, if the concrete is structural or post-tensioned, the kind with steel cables stretched tight inside it. A scan can find rebar, the steel bars that strengthen a slab, along with tensioned cables, electrical conduit, pipes and anything else a blade shouldn't hit. If there's any doubt about the structure itself, that's a question for an engineer, and I'll say so.
Do I need to call for a utility locate before concrete cutting?
If the job includes digging, Washington law says whoever digs must notify the state's one-number locator service at least two full business days and no more than 10 full business days before work starts. Many cut-outs end with the base being dug out for a new pour, so we build the locate into the schedule when that's the plan.
How do I keep concrete dust down when cutting a slab?
Cutting wet is the usual answer, because water cools the blade and holds the dust down on most flat, wall and wire sawing. A Washington rule calls for walk-behind saws to have a built-in water system that feeds the blade continuously, so it's fair to ask any crew whether their saw works that way.
What is the best way to cut very thick concrete or a tight corner?
For extremely thick, irregular or cramped sections, a wire saw is usually the tool, since a diamond-studded cable can be pulled through concrete no blade can reach. A hand saw suits tight spaces, shallow cuts and finishing a corner, and I'll tell you at the estimate which one your job calls for and why.
Concrete work that often follows a cut
When your driveway is past patching, replacing it lets us fix the slope and base together instead of cutting out one bad panel at a time.
Cutting back an old patio often leads to a new one, poured to drain away from the house and sized for how you actually use the yard.
Service areas for concrete cutting around Renton
Form & Pour Renton Concrete Company is based in Renton, WA, and we cut concrete in the cities around it, including Bellevue, WA and Auburn, WA. The 12 cities below each have their own page, and if yours isn't listed, please just ask.
Renton, WA
Tell us what you need cut
When you call or send the form, mention whether the cut is flat or up a wall, straight or round, and whether the concrete is structural, so I can bring the right questions to the visit.