Serving Grosse Ile, MI & Downriver Since 2000
Island-Proven Insulation Solutions
Living on Grosse Ile offers a unique island lifestyle, but being surrounded by the Detroit River means your home is constantly exposed to high humidity and strong winds. Whether you have a historic estate on East River Road or a ranch near the airport, standard fiberglass and cellulose insulation often absorb moisture and settle over time. Seal Tech Insulation provides specialized spray foam insulation and attic insulation services designed to seal your home against the aggressive river climate, preventing drafts and reducing energy costs by up to 50%.
The spray foam insulation Grosse Ile, MI residents trust for island-specific protection. From Grosse Ile Parkway to the southern tip of the island, our expert spray foam insulation contractors deliver air-sealing solutions that keep your home dry, comfortable, and efficient.
RECENT GROSSE ILE PROJECT
We recently upgraded a beautiful home overlooking the Thoroughfare Canal that was struggling with dampness and cold floors. The high water table was causing moisture to evaporate into the crawl space, ruining the old insulation. We encapsulated the area with a heavy-duty liner and sealed it tight, protecting the home’s structure from the water below.
Project Completed: Complete insulation removal of water-damaged batting followed by the installation of a vapor barrier and closed cell spray foam to permanently block ground moisture.









Local insulation contractor
Insulating a home on an island requires a deep understanding of moisture control. Grosse Ile homes face “vapor drive” from all sides due to the surrounding water. Our specialists don’t just add more material; we create a sealed envelope. We use blower door tests to find the invisible leaks in your attic or walls that are letting the river wind strip the heat right out of your home.
We also serve the local business district along Macomb Street and the industrial hangars at the Municipal Airport. These structures often have metal roofs or block walls that are difficult to heat. We provide commercial foam insulation that bonds directly to the substrate, preventing condensation (“sweating”) inside the building and lowering heating costs for local business owners.
What we do
Wall InsulationImprove comfort without changing your home’s look. Our wall insulation service injects foam into existing wall cavities from the exterior. This creates a dense barrier that stops wind-driven drafts and provides excellent sound insulation, keeping your home quiet.Learn more →
Attic & Ceiling InsulationA crucial defense against winter winds. We replace old, settling cellulose with a seamless thermal cap. Our attic insulation upgrades prevent warm air from escaping through your roof, which is the primary cause of ice dams on Grosse Ile homes.Learn more →
Crawl Space & Basement InsulationEssential for island homes. We specialize in crawl space insulation using a thick vapor barrier and waterproof spray foam. We also insulate basement rim joists to seal out the damp river air, protecting your floor joists from rot and mold.Learn more →
New ConstructionBuilding your dream home on the island? Ensure it is energy-efficient for the long haul. We work with local custom builders to design a "sealed envelope" system. Our spray foam insulation contractors ensure your new build meets the highest energy standards.Learn more →
Commercial BuildingsDurable solutions for island businesses. Whether you have a retail shop or an aircraft hangar, our spray foam insulation adds structural rigidity and climate control. It creates a monolithic seal that lowers utility costs and prevents moisture damage.Learn more →
Energy AuditsSee where your energy is going. Our professional energy audits use thermal imaging cameras to visualize heat loss behind your walls. We provide a clear, prioritized plan to fix your home's thermal weaknesses with targeted home insulation upgrades.Learn more →Why Seal Tech
We know Grosse Ile. We understand the logistics of working on the island and the specific moisture challenges posed by the Detroit River environment.
Invest with confidence. All our residential spray foam insulation installations come with a manufacturer-backed warranty that is fully transferable, protecting your investment.
Our air-sealing solutions often reduce energy consumption by 30-50%, delivering a return on investment that standard fiberglass batting simply cannot match.
Breathe easier. Our foam creates an air seal that blocks pollen and outdoor humidity. Unlike fiberglass, it doesn’t support mold growth, creating a healthier environment for your family.
We handle the dirty work. We provide safe insulation removal of old, contaminated materials, ensuring your attic or crawl space is sanitary before we re-insulate.
We take care of the paperwork. Our team manages all building permits and inspections with the Grosse Ile Township Community Development Department.
Watch & learn
FAQ
Being surrounded by water raises the ambient humidity. Standard insulation acts like a sponge, absorbing this moisture. Closed cell spray foam is impermeable to water and acts as a vapor barrier, keeping your home dry.
Yes, Grosse Ile Township requires permits for most structural insulation work. We handle the submission, approval, and inspection scheduling as part of our turnkey service.
Yes. We specialize in retrofitting historic homes. Our injection foam allows us to insulate walls without damaging the original exterior siding or interior plaster, preserving the home's character.
No. We view Grosse Ile as a core part of our service area. You get the same competitive pricing and professional service as any of our mainland clients.
Free evaluation
Schedule a no-obligation assessment from Grosse Ile’s trusted spray foam insulation experts. Professional service, honest pricing, guaranteed results.