Hiring an excavation contractor in Maryland
Gradeline lists 588 excavating and site work contractors in Maryland across 23 counties. This guide covers the Maryland rules that affect a dig: licensing, frost depth and 811 notice through Miss Utility (Maryland).
What to know before you hire in Maryland
4.6★
Know what a good rating looks like here
Maryland contractors average 4.6 stars on Google. Shortlist crews at 4.5 or better with a solid review count (81 qualify), and treat anything under 4.0 as a red flag.
Yes
Check the state license
Maryland requires a contractor license (Maryland MHIC), issued by Maryland Home Improvement Commission. Get the number in writing before you sign.
36 in
Footings go below the frost line
Frost reaches about 36 inches in Maryland. Any bid for footings, foundations, or buried lines should dig at least that deep. If the depth is not written in the quote, ask.
2 days
Utilities get marked before digging
Maryland law requires 2 business days notice to 811 (Miss Utility (Maryland)) before any digging. Ask whether your contractor files the request, and plan the start date around the wait.
32%
Most listed contractors have no website
Only 32% of listed Maryland contractors run their own site. Judge them on reviews, photos, and years in business rather than web polish, and get at least three written quotes.
Get quotes from Maryland contractors in one request.
Get free quotesArea-specific FAQ
How far in advance do I need to call before digging in Maryland?
At least 2 working days. Miss Utility (Maryland) takes locate requests statewide and has underground utilities marked before any excavation. Hitting an unmarked gas or power line can injure the crew and lead to costly repairs.
Do excavation contractors need to be licensed in Maryland?
Yes. Maryland requires a state contractor license (Maryland MHIC) for this work, regulated by Maryland Home Improvement Commission. Look up the license number before you sign a contract.
How deep do footings need to be in Maryland?
In Maryland, footings typically need to extend below the frost line, which is around 36 inches here. A local contractor will confirm the code requirement for your site.
When is the best time of year to dig in Maryland?
Spring through fall is the main excavation season in Maryland. A frost line around 36 inches makes winter digging slower, and the spring thaw leaves sites soft.
