What questions should I ask a garage floor coating installer in Indianapolis, IN before signing?

An Indianapolis garage floor that has weathered a decade of Hoosier winters is not interchangeable with a generic slab. It carries the imprint of thirty or more freeze-thaw cycles every winter, the chloride load from INDOT's brine-and-salt blend on I-65, I-69, I-465, and every surface street feeding the metro, and in older neighborhoods it sits on concrete poured before any modern admixture existed. The installer you bring to the walk-through has to read all of that on sight. The ten questions below sort a verified Indianapolis crew from a salesperson reading a brochure, and they tell you what a bad answer to each one actually sounds like.

Why the bid conversation matters more in the Indy metro

A 1925 attached garage in Herron-Morton Place with a full basement underneath the house and a porous slab above grade is a fundamentally different prep job than a 2017 three-car bay on a master-planned cul-de-sac in Westfield. The Herron-Morton slab has weathered nearly a century of Indiana winters, decades of carbureted-engine oil staining, and very likely one or two layers of failed sealer from prior owners. A serious installer walks the floor and reads that history out loud. A sales rep points at the slab and emails a number based on square footage alone. Find your Indianapolis crew through the local hub and put these questions to anyone bidding the work.

The ten questions, in the order they should come up

1. What diamond grind grit and how many passes on this specific slab? The answer should reference a CSP (Concrete Surface Profile) target and explain that grit selection depends on what is on the slab now and what coating goes on top. A bad answer is "we acid-etch." Acid etching on a salt-eaten Fountain Square slab will not produce the bond profile a high-solids epoxy basecoat needs to grip into.
2. Are you running a moisture test before you specify the product? Marion County housing stock built before 1955 routinely sits on bare earth with no modern vapor barrier underneath. A calcium chloride test or relative humidity probe catches active moisture vapor transmission before it ruptures the coating from the underside. A bad answer is "we have never had a problem with that on the east side." That is the answer of someone who has not been called back to assess their own failures.
3. What basecoat chemistry, and what manufacturer? The standard for Indianapolis residential should be a high-solids two-part epoxy with a film thickness measured in mils on a datasheet, not in marketing language. The installer should name the product. A bad answer is "industrial coating" or "pro grade."
4. Is the topcoat aliphatic polyaspartic? The topcoat meets every gallon of melted brine slush that rides into a Broad Ripple garage from the College Avenue salt run in January. Aliphatic polyaspartic stays UV-stable and chemically inert to chloride residue. Aromatic resin yellows and degrades. The wrong answer is "epoxy clear coat" or no topcoat layer at all.
5. Is this a single-day install for a standard two-car bay? Polyaspartic supports same-day installation when the prep is done right. A multi-day install on a standard residential bay usually means a slow-cure epoxy is being substituted for the topcoat.
6. What is the cure schedule before walk-on and vehicle traffic? Honest numbers on a properly installed system are walk-on the next day and vehicle traffic in about three days. A week or more points to wrong topcoat chemistry, not patience.
7. What are the specific warranty terms? The right number is a Limited 15 Year Warranty covering adhesion failure, peeling, and delamination under normal residential use. Documented exclusions are part of an honest warranty. A vague "lifetime warranty" with no written coverage is a marketing claim, and our note on polyaspartic garage floor lifespan walks through why that distinction matters.
8. How are you handling cracks and spalling on this slab? A real installer walks the floor and points to specific cracks and damaged areas before quoting. Structural cracks get epoxy or polyurea injection. Salt-pitted spalling at the door threshold and along control joints gets cut out and filled with rapid-set mortar. A "we coat over it" answer is exactly how a fresh coating fails. The broader failure pattern is covered in why epoxy garage floors peel.
9. Is the person walking my slab today actually installing the coating? In Indianapolis, a verified local crew handles assessments and installs together. The right answer is yes, or "I work with the install lead daily and you will meet them on day one." A polished salesperson who hands you to "the install team" you will not see again is a different operating model entirely.
10. Are you insured and verified through the Amazing Garage Floors network? Verified means the crew has been trained on the specific product system, audited on installation quality, and stands behind the same warranty across the national footprint. A bad answer is vague insurance language with no documentation, or a company name that does not appear in any installer directory.

What the right answers sound like together

A good Indianapolis installer does not deliver each answer in isolation. They connect them. They tell you that your Meridian-Kessler 1929 slab needs a moisture test before basecoat selection, that the spalling at the door threshold has to be cut out and patched before grinding, that the grind takes a coarser grit because there is residual sealer the diamond pass must remove first, and that the polyaspartic topcoat is what lets them finish in a day and hand you a 15 year warranty. They sound like someone who has done this exact slab type a hundred times in this exact metro, because they have.

What a bad installer sounds like

The bad version answers each question alone and avoids specifics. "We grind." "Our epoxy is industrial." "Warranty covers the floor." If follow-up questions make the answers vaguer rather than sharper, that is the conversation to walk away from before signing anything.

The specific Indianapolis context to test for

A serious installer should know how Indy concrete differs from a generic suburban slab. A few local follow-ups separate signal from noise.

• Pre-1955 attached garages in Irvington and Mass Ave-adjacent blocks often share a wall with a full basement, which introduces an additional moisture pathway the installer should ask about during the walk-through.
• Marion County excluded cities like Speedway and Beech Grove sit on slabs that absorbed decades of motor oil from a car-culture era that predates modern emissions controls. Surface contamination is a real prep variable.
• Hamilton County master-planned subdivisions in Carmel and Fishers are typically newer slabs on engineered fill, where settlement cracks from first-decade soil consolidation are the common finding rather than salt spalling.
• Salt-pitted spalling at the door threshold is visible on most Marion County slabs older than fifteen years and should not require homeowner pointing on the walk-through.

What to ask if a bid comes in suspiciously low

Some installers in the Indy market bid low by quoting a thin water-based coating closer to a hardware-store kit than a professional system. If the upfront number is far below the rest of the bids and the topcoat chemistry is vague, ask the question covered in our breakdown of DIY epoxy garage floor kits. A low-mil water-based product on an Indianapolis slab that sees brine every winter will fail inside two years regardless of who applies it.

Book a free on-site assessment in Indianapolis, IN

Use these ten questions on every installer who bids your floor. A verified Amazing Garage Floors crew member answers every one of them on the walk-through, in plain language, with specific reference to your actual slab. The assessment happens on your property, you owe nothing for it, and you leave with a real understanding of what your floor needs and what the install will look like. Schedule a free on-site assessment in Indianapolis through the local hub and put the questions above to a real crew.