Tom Howe Septic SystemsExcavating contractor in Merrimack, NH

Tom Howe Septic Systems is ranked #16 of 169 excavating contractors in Merrimack by CR Score, with 55 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.

Serves Merrimack and 11 towns within 25 miles: Litchfield, Bedford, Milford, Londonderry, Nashua, Manchester, Hudson, Hollis, Derry, Derry Village and South Hooksett. 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.

Tom Howe Septic Systems has a rating of 4.0 from 7 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 Tom Howe Septic Systems on (603) 424-3812. The business is at 29 Patten Rd, Merrimack, NH 03054. Ask for a written estimate before any work starts.