How to choose a polyjacking contractor

1. 1

   What density of foam do you use?

   Reputable contractors use 3–6 lb/ft³ structural foam for residential work. Lower densities are sealants, not lifting foams.

2. 2

   Is the warranty in writing and transferable?

   A real warranty is on paper, transferable to the next homeowner, and clearly defines re-settlement criteria.

3. 3

   Are you insured and WCB-covered?

   Always confirm both. Ask for a current certificate before work begins.

4. 4

   Will you do a void-fill phase before lifting?

   Skipping void fill is the #1 reason cheap polyjacking fails. The void must be filled first or the slab settles again.

5. 5

   How will you monitor the lift?

   Laser monitoring is standard. Eye-balling a lift is a red flag.

6. 6

   What's your hole-patch process?

   Color-matched cement patches that fade with age are standard. Anything else is sloppy.

7. 7

   Can you provide local references?

   Real contractors have nearby jobs they can show you. Drive-by references are gold.

8. 8

   What's NOT included in your quote?

   A good contractor flags what's excluded — patio extensions, additional panels, or related drainage fixes.

Red flags to walk away from

• • Door-to-door cold quotes with same-day urgency pressure
• • Cash-only pricing with no written contract
• • "Lifetime" warranties without defined terms
• • Refusal to name the foam manufacturer
• • No physical business address or vehicle branding