12 Questions to Ask a Flooring Installer Before You Hire
Before hiring a flooring installer, confirm insurance and any required license, ask who handles subfloor issues and at what rate, get the acclimation and moisture-testing plan for your material, confirm what the quote includes (removal, transitions, furniture, disposal), and verify the install won’t void the manufacturer warranty. Here are all 12 questions — with the good and bad answers to listen for.
Credentials & Experience Questions
1. Are you licensed and insured? Why it matters: Licensing varies by state, but liability insurance and workers’ comp protect you if someone’s injured or your home is damaged. The FTC’s contractor-hiring guidance is blunt: verify, don’t trust. Good answer: “Here are insurer-issued certificates, and our license number — verify it yourself.” See our license verification guide. Bad answer: “We’re covered, don’t worry about it.”
2. How much experience do you have with my specific flooring type? Why it matters: Tile and nail-down hardwood are genuinely different trades from click-lock vinyl. For hardwood, NWFA certification is a real credential worth asking about. Good answer: “We do hardwood weekly; here are three recent nail-down jobs you can call.” Bad answer: “Floors are floors.”
3. Can I see photos of YOUR past installs — and call a reference? Why it matters: Stock photos are free; real portfolios survive follow-up questions. Good answer: Job photos with details they can discuss — and a reference who picks up the phone. Bad answer: A glossy gallery they can’t answer specifics about.
Subfloor & Site-Condition Questions
4. Who handles subfloor issues if you find them — and at what rate? Why it matters: This is the change-order question. Subfloor problems (rot, unevenness, old adhesive) are discovered after demo, when you have no leverage. Lock the rate in before work starts. Good answer: “We inspect before quoting; if hidden issues appear after demo, leveling runs $X/sq ft and we get written approval before proceeding.” Bad answer: “We’ll deal with it if it comes up” — that’s a blank check.
5. Will you moisture-test my concrete slab before installing? Why it matters: Concrete transmits moisture vapor that destroys wood, swells laminate, and fails adhesives. Manufacturers require slab moisture testing — skipping it voids warranties. Good answer: “Yes — calcium chloride or RH probe test, documented, before any material goes down.” Bad answer: “The slab looks dry to me.”
6. What’s your acclimation plan for my material? Why it matters: Wood needs days on site — solid hardwood typically must acclimate to your home’s humidity before installation, per NWFA guidelines, and many rigid-core and laminate products have acclimation requirements too. Skipping it causes gaps and buckling. Good answer: “We deliver the wood 3–5 days early, check moisture content with a meter, and install only when it’s within spec of the subfloor.” Bad answer: “We install same-day delivery, no problem.”
Scope & Quote Questions
7. What exactly does the quote include — removal, disposal, transitions, doors, furniture? Why it matters: These five items are where “cheap” quotes hide their real price. Old floor removal and disposal can add $1–$2+/sq ft; transitions and door trimming are commonly billed as extras; furniture moving may be excluded entirely. See cost to replace flooring for typical add-ons. Good answer: Each item as its own line: removal, haul-away/dump fees, transitions and thresholds, undercutting doors, furniture moving — included or priced. Bad answer: One lump sum “per square foot, all-in” that turns out to be all-out.
8. What waste factor are you ordering — and who keeps the extra? Why it matters: 10% over measured area is the industry standard for straight-lay installs (more for diagonals and patterns). Too little risks mid-job shortages and dye-lot mismatches; way more than 15% on a simple layout pads the material bill. Good answer: “10% for your layout, and leftover full boxes are yours — keep them for future repairs.” Bad answer: No waste factor mentioned, or 20% on a plain rectangular room.
9. Is this labor-only, or are materials included? Why it matters: You can’t compare quotes that aren’t measuring the same thing. Benchmark against flooring installation cost data and use our quote-reading guide. Good answer: Clear separation of material (brand, line, quantity) and labor. Bad answer: Blended numbers nobody can decompose.
Warranty & Payment Questions
10. Are you certified or approved by the manufacturer — will your install keep my product warranty valid? Why it matters: Flooring warranties require installation per the manufacturer’s written specs; some carpet warranties additionally reference Carpet and Rug Institute installation standards (power-stretching, seam sealing). A non-compliant install voids the product warranty — leaving you uncovered twice. Good answer: “We install to [brand]‘s written instructions and document subfloor prep and moisture readings.” Bad answer: “Warranties are the manufacturer’s problem.”
11. What’s your workmanship warranty? Why it matters: The material warranty doesn’t cover installation errors — gaps, lifting edges, squeaks. You need a separate, written workmanship warranty (1–2+ years is reasonable). Good answer: “One-year written workmanship warranty; we come back for any install-related issue.” Bad answer: “We stand behind our work” with nothing on paper.
12. What’s the payment schedule? Why it matters: A modest deposit is normal (materials must be ordered); large upfront cash demands are the classic scam pattern flagged in the FTC’s guidance. Good answer: “Deposit to order materials, balance on completion after your walkthrough.” Bad answer: 50%+ upfront, cash preferred.
Red Flags in Their Answers
- A quote given without seeing the subfloor — the single biggest flooring red flag
- Vague on subfloor issue rates (“we’ll work it out”)
- No acclimation plan for wood, or no moisture test for a slab
- No waste factor, or an inflated one on a simple layout
- No written quote, no workmanship warranty
- Large upfront cash demand
A bid far below the rest isn’t a deal — installer labor costs are broadly similar (median flooring installer wages run $23–$25/hour per BLS data), so a dramatically cheaper bid is skipping prep, testing, or scope. Stack your finalists with our bid comparison guide and the full vetting steps in how to find a flooring installer near you.
Frequently Asked Questions
What should I ask a flooring installer before hiring? Confirm insurance and licensing, ask who handles subfloor issues and at what pre-agreed rate, get the acclimation and moisture-testing plan, pin down exactly what the quote includes (removal, transitions, furniture, disposal), and verify the install preserves the manufacturer warranty.
What is the change-order question for flooring? “Who handles subfloor issues if you find them, and at what rate?” Subfloor problems surface after demolition — when you can’t switch contractors. Locking the repair rate into the contract beforehand prevents mid-job price ambushes.
Why does wood flooring need acclimation? Wood expands and contracts with humidity. Solid hardwood typically needs several days on site to equalize with your home’s conditions before installation; installing straight off the truck causes gapping or buckling as it adjusts afterward.
What waste factor is normal for flooring? About 10% over the measured area for straight-lay installs, more for diagonal or patterned layouts. No waste factor risks shortages and dye-lot mismatches; far more than 15% on a simple room inflates your material cost.
Can a flooring installer void my product warranty? Yes — manufacturer warranties are conditioned on installation per their written specifications, including subfloor prep and moisture testing. Ask whether the installer is manufacturer-certified and whether they document compliance.
Last updated: June 2026. Hiring guidance per the FTC; wood acclimation guidelines per the NWFA; carpet installation standards per the CRI; wage data per the BLS. For informational purposes only.