Phoenix · Since 1961

Concrete core drilling is our specialty.

Clean, round, precise holes through concrete, block, and asphalt. For plumbing, electrical, HVAC, anchors, and anything else that has to pass through a slab or a wall.

Call 602-268-1439 Get a quote

Concrete core drilling is used for many applications during construction and the rebuilding of a structure. Most often, we core to make way for plumbing, electrical, conduit, and mechanical runs that have to pass through a slab or a wall. We also core to remove old concrete and expose the substrate beneath it, so repairs to existing concrete go faster and hold better.

It is an involved job that requires a lot of experience and the best tools and equipment to be done properly. Concrete Coring Company of Phoenix has been serving the area for over 60 years and has no plans to stop any time soon. Our men are trained to work safe and leave the job clean.

We have drilled up to 64″ diameter.

Whatever the special request, we have the resources to accommodate it.

No job is too big or too small.

We do our best to never say something can’t be done. If possible, we will fabricate special equipment to handle the job. We carry all kinds of diamond products, so we can cut through the hardest materials with ease.

Plumbing, electrical, and conduit penetrations through slabs and walls
HVAC, duct, and mechanical openings
Anchor bolts, posts, railings, and bollards
Manhole and vault penetrations for sewer, storm, and water tie-ins
Pipe penetrations in vaults, tanks, and structures
Floor drains, cleanouts, and slab openings
Large-diameter cores that other outfits turn away

Before and after

Concrete wall before core drilling, Phoenix AZ — Before

Clean cored hole through the same concrete wall after core drilling — After

Inside a manhole

Precast manholes are tight, curved, and wet. The rig anchors to the wall, the core is marked to line up with the pipe, and the hole comes out clean and round so the tie-in seals the way the engineer drew it. This one was a sewer tie-in at the Pavilion at Camelback in south Scottsdale.

Core drill rig anchored to the curved wall of a precast manhole with the core location marked in yellow — Rig set, core marked

Clean round core hole drilled through a precast manhole wall above the sewer pipe stub — Cored, ready for the pipe

Core drilling jobs around the Valley

Every core drilling job we write up on a city page lands here too, so you can see the whole run of them in one place. Tap one to read the story and see the photos.

New concrete steps at the Glendale civic campus cored for handrail posts

Handrail cores, Glendale City Hall

Downtown Glendale, April 2026. 3-inch cores for every handrail post on the new City Hall steps. Just handrails, done in a day.

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Core drill rig anchored to a block wall at Cardinals Stadium in Glendale

Forty cores at Cardinals Stadium

Glendale. Forty 4-inch cores scattered across the stadium, one truck, one rig, wet cored and vacuumed clean.

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Core drill rig set up between the seat rows at the Angels spring training stadium in Tempe

Eight-inch cores in the seating bowl

Tempe. 8-inch cores, 10 inches deep, through the seating deck at the Angels’ spring training ballpark. Rig between the rows, vacuum running.

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Clean core hole through a precast manhole wall

Inside a manhole

Pavilion at Camelback, south Scottsdale. A sewer tie-in cored through a curved precast wall.

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48-inch core drilling rig on a Scottsdale slab

48-inch cores

Scottsdale. Forty-four holes at 48 inches, Truck 14 on site at sunrise.

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Three clean cores through a block wall for conduit

Conduit cores in block

Scottsdale. Two 3-inch and one 2½-inch, marked to the quarter inch under the stub-ups.

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Row of cored fence post holes along a block wall

Fence post cores

Gold Dust Apartments, Scottsdale. One hole per post, straight down the top of a new block wall.

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Hand drilled holes in a concrete footer corner

Hand drilling footers

Cosanti Commons, near Shea and 70th, Scottsdale. Tight corners, no room for a rig, drilled by hand.

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Core rig mounted on a custom fabricated bracket

The bracket job

Scottsdale. Rebar at the top of the wall meant no anchor, so we built the bracket and drilled ten cores down through it.

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Groups of four one-inch core drilled anchor holes marked on a new slab at 335 E Pecos Road in Queen Creek

Forty-eight one-inch holes

335 E Pecos Road, Queen Creek. Forty-eight 1-inch anchor holes drilled to the layout, clean enough to look like they were poured in.

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Central Arizona Project checkpoint

Tempe. Cored through block in a live electrical and alarm room, containment up before the bit turned. Twenty-eight checkpoints on the books.

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Marked 10-inch core locations along the walk at Talking Stick Resort in Scottsdale with the Concrete Coring Company truck alongside

Fifteen 10-inch cores on Labor Day

Talking Stick Resort, Scottsdale. Fifteen 10-inch cores drilled on the holiday, cleaned up the same day so Tuesday started on time.

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Test core plugged back in the frosted floor of a working bakery freezer in Phoenix

Test cores in a working freezer

43rd Avenue, Phoenix. Four 4-inch test cores, 8 inches deep, cut on a Saturday inside a bakery freezer room.

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Three inch core through a Phoenix office slab showing the metal pan deck below

Twenty cores through pan deck

U-Haul International, 24th Street and Thomas, Phoenix. Twenty 3-inch cores, 6 inches deep, scanned first and every slug caught.

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Six inch cores drilled through asphalt at the Costco in Prescott, Arizona

Eleven cores in asphalt, Prescott

Costco, Prescott. Eleven 6-inch cores through asphalt, a hundred miles north of the yard. All of Arizona is not a figure of speech.

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Tape measure in an eighteen inch deep anchor hole at a mine in Golden Valley, Arizona

Anchor holes at a mine, Golden Valley

Origin Mining, past Kingman. Inch-and-an-eighth holes, eighteen inches deep, through machine bases so the equipment could be bolted down.

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Row of ten inch cores down the walk at Mesa Academy in Mesa

Fifteen 10-inch cores at a school

Mesa Academy, Mesa. Fifteen 10-inch cores through an 8-inch slab along the walk, coned off and plugged back as we went.

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Core drilling gallery

Ten inch core cut tight against a block wall with the slug set back in, Mesa

Concrete machine pedestal with anchor pockets and a drilled hole at a Golden Valley mine

Six inch asphalt cores in a Prescott parking lot

Three inch core through concrete on metal pan deck, Phoenix

Clean 4-inch test core hole, eight inches deep, in a Phoenix floor slab

Run of marked 10-inch core locations at Talking Stick Resort, Scottsdale

Ten-inch core hole with the slug set back in it, Scottsdale

Clean round core hole through block and stucco at a Central Arizona Project checkpoint in Tempe

Core drill rig running horizontally behind containment plastic in a live plant room in Tempe

Four one-inch core drilled anchor holes marked and checked on a Queen Creek slab

One-inch drilled holes on the snapped layout lines beside a conduit stub, Queen Creek

New concrete steps at the Glendale civic campus with 3-inch cores drilled for handrail posts

Clean 3-inch core hole for a handrail post in new plaza concrete, Glendale civic campus

Core drill rig anchored to a block wall at Cardinals Stadium in Glendale, 4-inch bit on the layout cross

Clean 4-inch core hole through a painted block wall at Cardinals Stadium, Glendale, Arizona

Core drilling rig with a 48-inch bit next to the cut core on a Scottsdale slab

Three clean cores drilled through a block wall in Scottsdale for electrical conduit

A row of cored fence post holes along a block wall at the Gold Dust Apartments in Scottsdale

Five holes hand drilled into a concrete footer corner at Cosanti Commons in Scottsdale

Large-diameter core rig set up on a slab, the cut core standing beside it

Concrete Coring Company truck and operator core drilling a slab in Phoenix

Rows of small cores drilled through a wall for anchors

A line of cores drilled along the edge of a concrete beam

Looking down a large-diameter core through a thick slab

Core slugs laid out beside the holes they came from

Operator core drilling overhead from a scissor lift

Core rig anchored to a floor inside an occupied building

The slug from a large core, pulled clean and set on the ground

Whatever your core drilling need may be, we will get the job done.

We have completed a variety of construction projects, from large commercial developments to parking lot upgrades to new driveways and more. We pride ourselves on our reliability and timeliness, and we are committed to providing you with the same high-quality service we have been providing the Phoenix area since 1961. Give us a call and speak with one of our core drilling experts. We’ll be happy to answer any questions you have.

Core drilling questions

How big a hole can you core drill?

Up to 64 inches in diameter. Most jobs are between 2 and 12 inches, but the big rigs are there when you need them, and whatever the special request, we have the resources to accommodate it.

How deep can you drill?

Straight through whatever is in front of us -- slabs, footings, walls, decks and beams. Depth is a question of setting the rig and stacking barrels, not a hard limit.

Will you hit rebar or a post-tension cable?

Not if we scan first, and we recommend it on any structural slab or deck. GPR scanning locates rebar, conduit and post-tension cable and we mark the clear zones before the bit touches concrete. Coring through rebar is routine; coring through a live cable is not.

Does core drilling make a mess?

We drill wet and vacuum the slurry as we go. On finished space we add plastic and containment. Leaving the job clean is part of the job, not an extra.

Can you core drill without power or water on site?

Yes. We carry our own water and self-contained equipment for sites that have neither, which is most new construction.

How do I choose a core drilling company?

Ask three things: how long they have been doing it, whether they scan before they drill, and whether anyone answers at 2am. Core drilling companies are not all the same -- we have been drilling Arizona concrete since 1961, we scan for rebar, conduit and post-tension cable first, and the phone is answered 24 hours a day. Arizona ROC 071382.

What does core drilling cost?

It depends on diameter, depth, how many holes, what is in the concrete and access. Call 602-268-1439, describe the holes and the site, and dispatch will give you a straight number rather than a range.

Asphalt, block, and concrete. We cut it all.

For your job, we will go anywhere. One number, answered 24/7, and a crew that has been cutting Arizona since 1961.

Call 602-268-1439