MMM UndergroundExcavating contractor in Blaine, MN

MMM Underground is ranked #1 of 151 excavating contractors in Blaine by CR Score, with 60 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

MMM Underground is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves Blaine and 12 towns within 25 miles: North Branch, Isanti, Wyoming, Cambridge, East Bethel, Forest Lake, Saint Francis, Oak Grove, Ham Lake, Andover, Lino Lakes and Hugo. The list is based on the business's location and the usual service radius for excavating and grading. Confirm your address is covered when you call.

MMM Underground has a rating of 5.0 from 16 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call MMM Underground on (651) 707-6141. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.