Contact GWM Earthworks

Need help with a septic, drainage, shed pad, or yard expansion project? Reach out and we’ll follow up within 24 hours to coordinate next steps.

Phone

Email

Office

6 Horace Greeley Road, Amherst, NH 03031

Service Area

We’re based in Amherst, NH and serve surrounding towns within roughly 45 minutes, including Bedford, Merrimack, Milford, Hollis, Nashua, Brookline, and Mont Vernon.

Hours

Business Hours: Monday–Friday, 8:00 AM–5:00 PM (appointments available)

General Contact / Inquiry Form

Share your contact info and a brief message about your project or question. You can also request a quote or a site visit and attach photos if helpful.

Contact Us

Other ways to contact us

Black outline of a circle on a white background.

Call or email for fastest response; leave a voicemail after hours

Black circle on a white background.

Expect a call-back or email within 24 hours on business days

A black circle on a white background.

If you’re experiencing an indoor backup, contact a pump company first; we’ll coordinate excavation if the septic system is confirmed as the cause