Mariner Construction is a Maine-based construction company specializing in insulated concrete form (ICF) construction, septic system installation, excavation, site preparation, and advanced waterproofing solutions. Built on a foundation of integrity, quality workmanship, and reliability, our team is committed to delivering durable, energy-efficient projects that are built to last in Maine’s demanding climate.

As master dealers for BuildBlock ICF, we provide complete ICF sales, support, and installation services for residential and commercial projects. From foundations to full ICF homes, we help clients build stronger, more energy-efficient structures with superior insulation and durability.

Mariner Construction also specializes in septic system installation and site development, providing complete excavation, drainage, utility, and groundwork services to prepare your property the right way from the start.

In partnership with HULK Waterproofing Systems, we offer premium below-grade and above-grade waterproofing solutions designed to protect foundations, basements, and entire building envelopes from moisture intrusion and long-term water damage.

Whether you are building a new home, installing a septic system, or waterproofing a foundation, Mariner Construction delivers dependable service and professional results across Maine.