Geothermal.contractors

McCullough And Sons Well Drilling has served Forest Lake, Minnesota and surrounding eastern Minnesota and western Wisconsin communities since 1935, now in its sixth generation of family ownership. Established in 1935, the company specializes in water well drilling for residential, agricultural, and commercial applications alongside geothermal drilling services. Their geothermal work covers borehole drilling, system planning and design, and loop installation for both residential and commercial projects. Additional services include new well drilling, pump installation, maintenance and repair, professional well inspections, well chlorination, well sealing and abandonment, well rehabilitation, fire suppression well drilling, and agricultural irrigation. The company uses state-of-the-art drilling technology and holds Minnesota and Wisconsin contractor licensing. McCullough And Sons carries a 4.1-star Google rating from over 70 reviews and can be reached at (651) 464-3939 at 20335 Forest Blvd N, Forest Lake, MN 55025. Verified active operator per https://www.mcculloughandsons.com + https://www.mcculloughandsons.com/geothermal.html (Bundle 4 audit 2026-05-29)