Professional flat roof repair for Dover property owners. Lapolla Industries delivers lasting results with industry-leading SPF technology.
Dover property owners with leaking flat roofs have tried everything — tar, caulk, peel-and-stick patches. None of it lasts because none of it addresses why the roof leaks. Lapolla Industries finds the actual failure point and repairs it with materials engineered for flat roof performance in New Hampshire weather conditions.
In Dover, NH, 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 Dover 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.
Every project begins with a thorough inspection of your property. We evaluate the existing condition, identify problem areas, and use infrared moisture scanning when needed to reveal hidden issues. You receive a detailed report with photos and honest recommendations.
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.
Application is performed by certified spray foam technicians using the latest proportioning equipment. We monitor foam temperature, pressure, and ratio throughout application to ensure every square foot meets manufacturer performance specifications.
After the foam cures, we apply a UV-protective coating — silicone, acrylic, or elastomeric — selected for your specific application and climate. We then remove all masking, clean up the work area, and conduct a final walkthrough with you to verify satisfaction.
Common questions about flat roof repair answered by our spray foam experts.
Costs for flat roof repair in Dover 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. Spray foam can be applied year-round in Dover as long as surface temperatures are above 40 degrees Fahrenheit. Our crews monitor substrate temperature and ambient conditions to ensure proper foam curing and adhesion regardless of season.
Most residential flat roof repair projects in Dover are completed within 1 to 3 days. Larger commercial projects may take longer depending on square footage and complexity. We provide a detailed timeline with every estimate.
Yes. Every flat roof repair project in Dover 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.
Honest reviews from property owners who chose Lapolla Industries for their roofing and insulation needs.
"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."
"We needed our concrete roof deck waterproofed before installing new equipment on it. The crew applied a monolithic membrane that handles foot traffic and ponding water. Two years in and zero issues. Money well spent."
"Lapolla Industries insulated our crawl space with spray foam and encapsulated the entire area. No more cold floors in winter, no more musty smell. The crew worked in tight quarters and did an excellent job. Very impressed."