Questions to Ask Before You Hire a Spray Foam Contractor
The 5 questions that separate a pro crew from a risky one.
Anyone can buy a rig. That doesn't make them a contractor. Ask these before you sign.
1. Are you licensed and insured? Get the certificate, not just a yes. If they can't produce it, walk.
2. What material are you spraying, and is it certified? Look for manufacturer certification on the product and the installer. Off-brand foam with no paperwork is a gamble.
3. Who handles ventilation and re-entry timing? A real crew sets up ventilation and tells you when it's safe to re-enter. If they say 'it's fine right away,' they're wrong.
4. What's in the quote — material, labor, prep, cleanup, warranty? Get it itemized. 'Price per square foot' means nothing if prep and cleanup aren't included.
5. Can I see a recent job and a warranty? A crew that won't show you a past install or put a warranty in writing isn't one you want in your walls.
A real contractor answers all five without flinching. If they dodge ventilation or warranty, keep looking.
Key takeaways
- Ask about licensing, insurance, and warranty before any spray happens.
- A real quote is by board foot or square foot at a specified thickness — not a round number.
- References, photos of past work, and a clear prep/cleanup plan separate pros from hacks.
Step by step
- 1Verify the contractor's license and insurance certificate.
- 2Ask for the quote in board feet or $/sq ft at a stated thickness and foam type.
- 3Request references and photos of similar completed jobs.
- 4Confirm prep, masking, ventilation, and cleanup are included.
- 5Get the warranty — material and labor — in writing.
Quick checklist
- License and insurance verified.
- Quote specifies foam type, thickness, and total board feet.
- References or gallery of past work available.
- Written material and labor warranty.
Common mistakes
- Accepting a vague lump-sum quote with no thickness or foam type.
- Hiring with no proof of insurance or warranty.
- Skipping references and finding out too late the work was sloppy.
Ready to put it into practice?
Get a firm quote for your project or call the office to talk it through.
Mark this lesson complete to track your progress.