Residential concrete · Grand Rapids, MI
Driveways, patios, stamped work, slabs, walks and repair. We build the base you never see, cut the joints on purpose, and print the price per square foot before you sign anything.
$8 to $12
per sq ft for broom finish, base and steel included
4,000 psi
air-entrained mix on every outdoor pour
6 in
of compacted 21AA gravel under every driveway
2 days
from site visit to a written, itemized quote
Most bids are one number on the back of a business card. Ours list the square footage, the finish, the price per square foot, the tear-out and the minimum, line by line.
If two bids are $3,000 apart, you should be able to see exactly why. Usually it is the base, the steel or the tear-out. Sometimes it is just a better finish.
Six services
DW P-01
Tear-out and replacement, new drives, widening and aprons.
from $8 per sq ft
PT P-02
Patios off the back door, fire pit and grill pads, hot tub pads and steps down from a deck.
from $8 per sq ft
SC P-03
The look of slate, stone or brick, poured as one slab.
from $15 per sq ft
FD P-04
Footings and frost walls for garages and additions, garage and shop floors, shed and accessory-building slabs.
footings from $55 per ft
SW P-05
Front walks, side paths, city sidewalk squares, steps and landings.
from $10 per sq ft
RP P-06
Crack sealing, joint sealing, cleaning and sealing, resurfacing a flaking top, and replacing one or two bad panels.
from $1.25 per sq ft
Base, steel, mix, joints
Once the forms come off, nobody can see the base or the steel. So we write them down. Five things most bids leave vague, and every Keyway quote spells out:
Top: Broom finish, curing compound on day 0, sealer after day 28
Slab: 4,000 psi, air-entrained, fiber in the batch
Steel: Wire mesh on chairs, held at mid-depth
21AA crushed gravel, compacted in two lifts
Native soil, soft spots dug out and replaced
Printed on pour day
Concrete hardens by chemistry, not by drying. These are the dates on the card we tape to your door.
Curing questionsDay
0
Pour day
Placed, finished and sprayed with curing compound. Joints are cut within hours. Keep kids, pets and sprinklers off.
Day
1-2
Feet
Walk on it with care after 24 to 48 hours. No bikes, no dragging grills or furniture across it.
Day
7
Cars
Drive and park passenger cars after 7 days. Keep tires off the outer edges for another week.
Day
28
Full strength
Close to full design strength. Moving vans and dumpsters are fine, and the first sealer can go on.
Cool weather slows everything down. Below about 50°F, add two or three days to each step. We write your actual dates on the card.
Price per square foot
Every range includes digging, the gravel base, forms, steel, the mix, joints and curing. Tear-out is listed separately so you can compare bids line by line. Small pours have a $2,400 minimum.
Plain gray concrete with a light broom texture for grip. The workhorse for driveways and walks.
$8 to $12 per sq ft
Color mixed all the way through the batch, so a chip or worn spot shows color, not gray.
$10 to $14 per sq ft
We wash the top layer of cement paste off to show the stone. Very grippy and hides dirt well.
$12 to $17 per sq ft
Pattern mats pressed into fresh concrete, a base color and a contrasting release powder.
$15 to $22 per sq ft, first seal included
Two-tone stain work, a smooth or contrasting border band, and hand-detailed edges and steps.
$19 to $27 per sq ft, first seal included
Before you sign anything
Concrete cracks. We decide where.
Every slab shrinks as it cures. Control joints, cut a quarter of the slab deep and no more than 10 ft apart on a 4 in slab, give that crack a straight, hidden path. A hairline crack inside a joint is the slab doing its job. A crack that crosses a panel and opens wider than 1/8 in is ours to look at.
Cracking questionsWalk in 2 days, drive in 7, full strength in 28.
Concrete does not dry, it hardens through a chemical reaction that needs water and warmth. We spray a curing compound to hold the water in. Your job is patience: feet after 24 to 48 hours, cars after 7 days, heavy trucks after 28.
Curing questionsWait 28 days, then seal on a schedule.
Sealer keeps water and salt out of the surface. It goes on after the slab has cured for at least 28 days. Penetrating sealer on broom finishes lasts 3 to 5 years; the acrylic on stamped work wants a fresh coat every 2 to 3 years.
Sealing questionsNo salt the first winter. Ever on ammonium.
Water soaks in, freezes, expands and pops the top layer off. That is scaling. Air-entrained mix and a proper finish stop most of it. Your part: no deicer at all the first winter (use sand), and never fertilizer-based ammonium deicers after that.
Freeze-thaw questionsReviews
4.8
Average of the 10 reviews on this site, including the two 4-star ones.
Read all reviews“Three bids, and Keyway was the only one who explained what was going under the slab. They dug out a lot more soft clay than I expected and showed me before charging for it. Two winters in, no flaking.”
“Good work, clear prices. A hairline crack showed up in one panel the first winter and I was annoyed. They came out, showed me it was inside the joint, and sealed it anyway. Fair enough.”
“I called asking for a new driveway. Amira told me mine was still level and solid and sold me a $900 clean, joint seal and seal instead. Who does that?”
Recent pours
Next step
Tell us what you want poured and roughly how big. We walk the site, check the base and the slope, and send a written quote within two business days.