Spray foam quality depends critically on equipment calibration, mix ratio accuracy, ambient temperature at application, and proper ventilation during curing. A poorly installed spray foam job can fail structurally and require removal and reinstallation. When choosing a spray foam contractor in Langley BC, confirm HPCN registration for rebate eligibility, ask about equipment calibration processes and mix ratio verification, and ensure liability insurance specifically covering spray foam applications is in place. Western Insulation meets every standard. Free Langley assessment at westerninsulation.ca/spray-foam-insulation/