Sewer and drain services in Portsmouth, NH and across the Seacoast — 24/7
24/7 service · Locally owned and operated · A real person answers the phone
Slow drain, gurgling toilet, sewage backup, leaky fixture, broken sewer line, those are the calls we take all day, every day. Seacoast Sewer and Drain handles plumbing, sewer, and drain work for homes and businesses across the New Hampshire and Maine Seacoast.





What to expect with Seacoast Sewer and Drain
We bought this company three years ago to do the work the right way. That shows up in the small things. A real person answers the phone. The technician shows up with the equipment the call actually needs. The diagnosis is honest, even when the honest answer is that the fix is smaller than you thought. There is no upsell to a service we do not do.
- Fast response, 24/7 availability — when you need emergency drain service, we are on call around the clock to stop the damage before it spreads.
- Right tool from the first visit — every truck carries a jetter, a camera, and the right snaking equipment, so we match the method to the clog instead of starting small and selling up.
- Comprehensive sewer and drain work — from a single slow fixture to a full sewer line replacement, under one team.
- Upfront pricing, no surprises — clear, transparent quotes, no hidden fees added at the end.
- Long-lasting results — we fix the cause, not just the symptom, so the same line does not come back next month.
- Customer-first approach — we treat your home or business the way we would want ours treated, clean work, clear communication, no pressure.
Your trusted partner for sewer and drain services
24/7 Availability
Honest, upfront pricing
Experienced crew
Built for the work
Locally owned
Reviews from Portsmouth, the Seacoast, and beyond
Proudly serving Portsmouth, Dover, Exeter, and Durham in New Hampshire, plus York, Kittery, and Eliot in Maine, along with the surrounding Seacoast towns. Read what our neighbors say about working with the team.
How a sewer and drain call actually works here
Most people only think about their sewer and drain lines when something is already wrong. By then the call is urgent, and the question is not whether you need help, it is who you want showing up. Here is what working with us actually looks like.
First, we listen. You tell us what is happening, which fixtures are affected, how long it has been going on, what you have already tried. That alone narrows the diagnosis before we get to the property.
Then we diagnose, with the right tool. For a simple single-fixture clog, that is usually a snaking call. For whole-house backups, recurring clogs, or anything pointing to the main line, a drain camera earns its keep by showing the cause directly. No exploratory digging, no guessing.
Then we explain your options. You see what the camera saw. We walk you through the smartest fix and the honest pricing, including when a smaller fix is the right call and a bigger one would just be us selling you work.
Then we do the work. Whether that is a plumbing repair, power snaking a branch line, hydro jetting a grease-packed main, repairing a damaged section of sewer line, or coordinating a targeted dig, we run the job cleanly and confirm the work holds before we leave.
Why homeowners and businesses choose Seacoast:
- 24/7 emergency drain service, real-person response when minutes matter
- Accurate diagnostics with video camera inspection and precise pipe locating
- Right tool from the first visit, from snaking to jetting to excavation
- Long-lasting results from preventative maintenance plans for older homes and grease-heavy commercial kitchens
- Respect for your property, clean work areas, and clear communication
Proudly serving the New Hampshire and Maine Seacoast.

Contact us
Have a sewer or drain problem? Send a message and we will get back to you fast, with 24/7 response for active backups, overflows, and pump failures. We cover the New Hampshire and Maine Seacoast with same-day service when the schedule allows and around-the-clock response for emergencies.
For the fastest answer, especially if water is moving, call (207) 439-2900 and describe what is happening. Our office is staffed by a real person, not an answering service, and we will send a technician with the right equipment for the job.
Office: Portsmouth, NH
Phone: (207) 439-2900
Hours: 24/7 for emergencies, regular scheduling weekdays and Saturdays








See if we service your area
We cover the New Hampshire and Maine Seacoast, often same-day, with around-the-clock response for emergencies. Our priority cities are Portsmouth, Dover, Exeter, and Durham in New Hampshire, plus York, Kittery, and Eliot in Maine. We also serve Somersworth and Rochester in NH, and the towns surrounding these on both sides of the state line.
New Hampshire

If your town is not listed, call (207) 439-2900 and we will confirm whether we cover your address. The Seacoast towns surrounding these are usually a yes.
Call for sewer and drain service across the Seacoast (24/7): (207) 439-2900
