Underground utility work is unforgiving: get the depth, bedding, or slope wrong and you're digging it up again. Roberts Excavation installs water lines, sewer laterals, storm drainage, and electrical or telecom conduit across Eastern Connecticut, from single-house services to municipal tie-ins.
We coordinate CBYD 811 marking, meet the utility and town inspectors on site, and backfill to spec so your lawn or pavement goes back the way it should.
Why Choose Us
Licensed & Insured
CT Lic. #NHC.0014110 with full liability coverage on every job.
24hr Emergency Service
Septic backup or washout? We answer around the clock.
Owner-Operated
You deal with DJ Roberts directly — from estimate to final grade.
Our Own Equipment
We run and maintain our own machines, so schedules hold.
Local Since 2010
500+ projects on Eastern Connecticut's soils, ledge, and grades.
Free Estimates
A walk of your site and a straight number — no obligation.
Underground Utilities We Offer
Water Line Installation
New water services and replacements for failed lines, trenched below Connecticut's frost depth and tied into the well or the municipal main. Bedded, backfilled, and tested so the line stays buried and forgotten.
Learn MoreSewer Line Installation
Sewer laterals installed and replaced with the pitch, bedding, and cleanouts they need to run clog-free for decades. From the house to the town main or the septic tank, dug and tied in right.
Learn MoreStorm Drainage Installation
Catch basins, culverts, buried downspout lines, and drainage pipe that move stormwater where it belongs — away from foundations, driveways, and low spots. Built with the pitch and the outlet to actually work in a downpour.
Learn MoreUtility Trenching
Clean, safe trenching for electric, gas, water, sewer, and communications lines — marked out through 811, dug to code depth, and backfilled in compacted lifts. One trench for multiple utilities whenever the codes allow it.
Learn MoreUtilities Questions
Learn More About Roberts Excavation
Serving Area
Based in Plainfield, CT — serving Windham and New London counties within 30 miles.
4 Legacy Dr, Plainfield, CT 06354
See all towns we serveBusiness Hours
Mon–Sat: 7:00 AM – 6:00 PM
Sun: Emergency calls only
24hr emergency response available — call anytime.