Septic System Installation in New London County, CT
Reliable, Code-Compliant Service from Start to Finish
Looking for expert septic system installation in New London County? At Hagstrom Excavating Septic Systems & New Home Building, we provide safe, efficient, and fully licensed septic excavation and installs for homes and businesses across the region. From permits to backfill, we handle it all — so you don’t have to.
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Local Knowledge. Clean Work. Accurate Digging.
Professional Septic Excavation Services
Our team understands the unique soil conditions and health department requirements in New London County. We perform detailed site assessments and dig with precision, ensuring your septic tank and drain field are placed correctly and built to last.
Full Septic System Installation
Serving Homeowners & Contractors Across New London County We install complete septic systems including: Septic tank excavation and placement Drain field/trench installation Pipe layout and connections Inspection coordination and final grading All work is done in compliance with local health codes and environmental standards.

Septic System Excavation
We handle complete septic system digs—from preparing new sites to digging for repairs or replacements. Whether it’s a brand-new system or an old one that needs replacing, we’re here to help.

New House Build Excavating
From site clearing to foundation digs, we provide reliable excavation services for new home construction. We’ll prepare your property for a solid start—efficiently, accurately, and ready for the next phase.
Why Homeowners in New London County Trust Us
- Local experience you can count on
- Fully licensed & insured for CT septic work
- Transparent pricing — no surprises
- Respectful crew and clean job sites
- Fast response and dependable scheduling
We Follow Best Practices
- Prioritize Safety
- Project On Time
- Licensed and Insured Contractor
- Customer Satisfaction Guaranteed
Our Clients "Dig" Our Work
Testimonials
Alice Howard
⭐️⭐️⭐️⭐️⭐️ We had a water main break on our property and needed someone fast. Hagstrom Excavating showed up within hours, dug the trench safely and cleanly, and worked hand-in-hand with the plumber to get everything back online. What could’ve been a nightmare turned into a smooth fix. They really saved us from a major headache.
Nathan Marshall
⭐️⭐️⭐️⭐️⭐️ I was really impressed with Hagstrom’s trenching work. They dug a long run for gas and power lines, and everything was clearly marked, dug safely, and backfilled neatly. They communicated with me throughout the whole process, which I appreciated as a homeowner. I’ve had contractors leave a mess behind — not these guys. Top-tier service.
Ema Romero
⭐️⭐️⭐️⭐️⭐️ I had an incredible experience with Hagstrom Excavating and Septic Tank. From the first phone call to the final inspection, they were professional, efficient, and transparent. They replaced our aging septic system on schedule and kept me in the loop every step of the way. The crew was respectful of our property and cleaned up after themselves better than I expected. I’d recommend them to anyone looking for reliable, high-quality work.
Ann Smith
These guys are lifesavers! We ran into an issue with our system and called Hagstrom Excavating on a recommendation. They were out the next morning, diagnosed the problem quickly, and had everything fixed before the weekend. Super friendly, honest about pricing, and didn’t try to upsell us on anything unnecessary. I felt like I was in good hands the whole time. Thanks again for the great service!
Serving All of New London County
Including Norwich, Montville, Waterford, East Lyme, Colchester, Salem, and surrounding areas.
Request a Quote
Ready to Work Together? Build a project with us!