Professional flat roof repair for Ontario property owners. Lapolla Industries delivers lasting results with industry-leading SPF technology.
Flat roofs in Ontario, CA fail at predictable points: seams, flashings, penetrations, and areas where water ponds. Lapolla Industries diagnoses the specific failure mechanism on your roof using infrared scanning and visual inspection, then applies a targeted repair that addresses the root cause — not just the symptom.
In Ontario, CA, the difference between a spray foam job that lasts and one that fails comes down to the contractor. Lapolla Industries applies the same quality standards to every flat roof repair project that earned us a reputation as one of the nation's most trusted SPF specialists — proper surface prep, correct foam thickness, and factory-specified coating application.
Every flat roof repair project we complete in Ontario is backed by both manufacturer material warranties and our own workmanship guarantee. We document every step with photos and measurements, provide you with a detailed project report, and remain available for warranty service and maintenance throughout the life of your SPF system.
Our proven process ensures quality results on every spray foam project.
Before any work begins, our certified inspectors evaluate your property and provide a comprehensive assessment including current condition, repair needs, and recommended SPF solutions. You get a written estimate with no hidden fees.
We prepare every surface according to factory guidelines — cleaning contaminants, addressing moisture, repairing damaged substrate, and verifying adhesion conditions. This step is not glamorous, but it is the foundation of a spray foam system that lasts decades.
Our factory-trained crews apply spray polyurethane foam using calibrated equipment that ensures consistent thickness, proper density, and complete coverage. The foam expands on contact, fills every gap, and bonds permanently to the prepared substrate.
We finish every project with the appropriate protective coating, thorough cleanup, and a detailed walkthrough. You receive project documentation including photos, material specifications, warranty registration, and maintenance recommendations.
Common questions about flat roof repair answered by our spray foam experts.
Costs for flat roof repair in Ontario vary based on project size, existing conditions, and material requirements. We provide free on-site estimates with detailed written proposals. Contact us at {phone} for a no-obligation quote.
Yes. Every flat roof repair project in Ontario is backed by manufacturer material warranties plus our own workmanship guarantee. We handle all warranty registration and remain available for warranty service throughout the life of your system.
Yes. Every Lapolla Industries crew working in Ontario is fully licensed, bonded, and insured for spray foam application. We carry general liability and workers compensation coverage on every project and can provide proof of insurance upon request.
Absolutely. Once cured, spray polyurethane foam is inert and non-toxic. Our Ontario crews follow all OSHA safety protocols during application, including full PPE and ventilation procedures. The foam cures within minutes and is safe immediately after.
Honest reviews from property owners who chose Lapolla Industries for their roofing and insulation needs.
"Our commercial building needed a roof solution that would not require tenant relocation. The restoration approach was perfect — no tear-off noise or debris, minimal odor, and a fully warranted system installed in under two weeks."
"Our corrugated metal roof was rusting at every fastener and seam. They cleaned the entire surface, treated the rust, and applied a thick elastomeric coating. The roof looks brand new and is completely sealed now."
"Hail tore up the coating on our foam roof and we had exposed foam everywhere. They responded the next day, documented everything for insurance, and had the entire roof recoated within a week. Fast, professional, and insurance handled smoothly."