
Founded in 1849 where the Cedar River splits town
Concrete Contractors in Janesville, IA
Driveways, patios and walks on both sides of the river, for a town where nine in ten homes are owner-occupied.
- A site visit and a measured, itemized estimate at no charge
- Exterior slabs get an air-entrained mix, a compacted stone base and planned joints
- Permit and right-of-way rules looked up for your address first
Concrete on Both Banks
The Cedar River runs straight through Janesville, and the town sits right on the line between Bremer and Black Hawk counties. Wikipedia credits its founding in 1849 to John T. Barrick, a Quaker abolitionist who came from Ohio, built the first mill and frame house in the area, and named the town after his wife, Jane McPherson Barrick. For concrete contractors in Janesville, that location adds one step to every job: we confirm which county a property is in before checking which local rules apply.
A town of homeowners
About 91.4 percent of occupied homes in Janesville are owner-occupied, and 385 of 429 housing units are detached houses. Owners tend to fix things properly rather than patch for the next tenant, so we spend time on what lasts:
- A compacted base that will not wash out.
- Air-entrained concrete for freeze-thaw resistance.
- Joints cut deep enough and spaced close enough to control cracking.
- Proper curing before anyone drives on the slab.
A 2000s building wave
Census estimates count 71 homes built in Janesville from 2000 to 2009, about 16.6 percent of the total, plus 43 from the 2010s. Driveways from the 2000s are now about twenty years old. This is the point where sealing joints and cracks pays off most. Water that gets under a slab freezes, lifts it and softens the base when it thaws. Stopping it early is far cheaper than replacing sunken panels later.
Older homes near the river
Janesville also has older houses, with 79 built in 1939 or earlier. Near the river, grading matters. We set new slabs to shed water away from foundations, check that downspouts discharge where water can drain, and avoid creating low spots along the house where water can stand.
Typical Janesville projects
- Patios, plain or stamped, for backyards facing the river or open fields.
- Driveway replacement on 1960s and 1970s homes, which make up about 29 percent of the town.
- Garage and shed slabs for storage and workshops.
- Sidewalk and step repairs, especially where frost has lifted panels.
Slow, steady growth
Wikipedia counts 311 residents in 1900, 445 by 1950, 840 by 1980 and 1,034 in 2020. Housing units went from 409 in 2010 to 455 in 2020. Every new house adds a driveway and patio, and every older one eventually needs its concrete redone. The opening of the four-lane U.S. 218 and Iowa 27 bypass, the Avenue of the Saints, put Janesville within easy reach of both Waterloo and Waverly, which helps explain why people keep building here.
Who lives here
Wikipedia's 2020 census figures give Janesville a median age of 42.5, with 23.6 percent of residents under 18 and 19.2 percent 65 or older. That mix drives two kinds of requests. Families want patios and wider drives. Older owners want front steps with even risers, a landing they can stand on and a handrail, plus walks without lifted edges. We pour both with a broom texture for traction in winter.
Town services
The Janesville Public Library dates to 1962, and the local school district serves about 335 students from pre-kindergarten through 12th grade. Wartburg College is a short drive north in Waverly. With 1,034 residents, it is a small town, and most of its concrete jobs are single-lot projects: one driveway, one patio, one set of steps at a time.
Call (319) 481-5867 or use the form to send photos, and we will come out to Janesville.
Janesville Facts
- Founded in 1849. John T. Barrick, a Quaker from Ohio, founded Janesville, built the area's first mill and frame house, and named it for his wife, Jane.
- River and county line. Wikipedia says Janesville straddles the Bremer-Black Hawk county line and is split by the Cedar River.
- Owner-occupied. Point2Homes puts owner occupancy at 91.4 percent and counts 385 single detached houses among 429 units.
- 2000s building wave. Point2Homes counts 71 Janesville homes from 2000-2009, or 16.6 percent, and a median year built of 1974.

Our Services in Janesville, IA
Janesville Questions
Does it matter which county my Janesville home is in?
It can affect which office handles any permits or reviews. We confirm the county and local requirements for your parcel before scheduling the work.
My driveway is about 20 years old. Is it time to replace it?
Not necessarily. At that age, sealing joints and cracks usually makes the most sense. Replacement is for panels that have sunk, rock or broke apart.
Can you pour a patio near the river?
Yes. We set the elevation and slope so water drains away from the house, and use a free-draining base to limit frost heave.
Free Estimates in Janesville, IA
Tell us which side of the river you are on and what you need, and we will come look.
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