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A-1 TrenchlessWater and Sewer Repair

Trenchless sewer and water line repair in Damascus, MD

Your local drain and sewer experts in Damascus, MD

Drain cleaning, camera inspections and sewer line repair for homes and businesses across Montgomery County and the towns around it.

  • Licensed and insured
  • Free estimates
  • Financing available
  • Free camera inspection with sewer repairs

Get a free estimate

Tell us what is going on and we will call you back.

(301) 254-8401Mon to Fri, 8 AM to 5 PM

Our services and promises

What is going on with your pipes?

Pick the one that sounds like your house. We will tell you what it usually means and what we would check first.

What it usually means

One slow sink is a clog. Every drain slowing down is the main line.

If only the bathroom sink is sluggish, the trouble is usually hair and soap in that one trap. When the tub, the toilets and the floor drain all slow down together, something is building up in the main sewer line that carries everything out of the house.

What we would do

We clear the line, then run a camera through it so you know whether it was a simple clog or something that will come back.

How no-dig repair works

A new pipe inside the old one, and the lawn stays where it is

On most lining jobs the only holes are two small access pits, one near the house and one near the street. Scroll to follow the four steps.

  1. 1The camera finds the damageWe feed a camera through the cleanout and record the whole line. Cracks, roots and sags show up on screen, with the distance to each one.
  2. 2The line gets cleaned outRoots, grease and scale are cut and flushed away so the new pipe has a clean, round surface to bond to.
  3. 3A new pipe forms inside the old oneA resin soaked liner is pulled into place from a small access pit and cured until it hardens into a new pipe with no joints for roots to find.
  4. 4Water flows, the lawn staysThe cracks are sealed inside a jointless pipe. Up top, the lawn, the driveway and the tree never got touched.
How no-dig sewer lining worksCross-section of a yard. A camera inspects the old cracked sewer pipe, the line is cleaned, a liner is pulled in and cured, and water flows through the new pipe while the lawn, driveway and tree above are untouched.PITPITCrackRootsCrackLawn, driveway and tree untouched

Not every pipe can be lined. Collapsed or badly sagging sections sometimes need a different fix, and we will tell you when that is the case.

Front lawn of a blue colonial house graded, seeded and covered with straw after a line replacement, with the driveway left intact
A finished job. The lawn is graded, seeded and strawed, and the driveway was never touched.

Straight answers, and a yard that still looks like a yard

  1. 01

    Licensed and insured

    You are not taking a chance on who is digging on your property or working on the line that serves your house.

  2. 02

    We show you the problem first

    Camera footage first, recommendation second. You see the crack or the roots with your own eyes before anyone talks price.

  3. 03

    Quotes you can follow

    A written estimate that says what we are doing, why, and what could change once the ground is open. No surprises at the end.

  4. 04

    The yard gets put back

    Small access pits whenever the pipe allows it. When we do have to trench, we backfill, grade and seed or sod before we call it done.

A broken sewer line is never in the budget

Line repairs tend to show up at the worst possible time. Financing is available, so you can fix the problem properly now and pay for it over time. Ask about it when we give you the written estimate.

Photos from our own jobs

Every photo of a job on this site comes from an A-1 crew. This is what the work actually looks like.

  • Technician holding a cut section of old cast iron pipe showing a clean bore after descaling
    Pipe descaling

    Cast iron after descaling. Rust on the outside, a clean round bore inside.

  • Deep sewer line trench across a front yard with a mini excavator and shoring ladder
    Sewer replacement

    Some jobs really do call for a trench. When they do, we shore it and dig it safely.

  • New PVC sewer cleanout riser set in crushed stone bedding at the bottom of a shored trench
    Cleanout install

    A new cleanout bedded in stone, so the next drain cleaning is quick.

See more of our work

What our customers say

Word for word from Google. We do not edit reviews.

“My waterline broke underneath the house. The water company was quick to inform me that 147,000 gallons (that's not a typo) had gushed into the drainage system. A-1 was here right away, dug up my front yard, fixed the leak. Then they filled up the trench, relandscaped the front lawn, and two days later you couldn't tell that a bulldozer (with a digger almost as big as my home) had even been there. Now it's two weeks later, and the new sod and grass have taken hold beautifully. More importantly, all that water - a valuable resource - is not being wasted and all is good again. That you guys! Great job.”
Carole Waesche, Google review, September 2022Water line break
Water line replacement
Terrific job! Fast, neat and reasonably priced. Scheduled really quickly, too. They had previously replaced a sewer line for us. This time it was a water line, which they did with only trenching at the two ends, then pulling the line through when pulling out the old. Will definitely use again for other projects.
Tim, Google review, December 2020
Sewer and water line replacement
Replaced sewer and water pipe lines. Fantastic service! Jerry and his team were very professional, answered all of my questions, and did the large job of replacing my sewer and water pipe lines. A 10 foot trench was dug and the job took longer then anticipated due to intermittent rain. Jerry charged a very fair price and the work that was done was excellent. I highly recommend A-1 Trenchless.
Stephanie Badini, Google review, September 2020
Commercial and municipal work
A1 does and excellent job for us with all of our master plumber needs. We have used them extensively on our government and municipal jobs when we need a master plumber. Jerry has extensive knowledge of all things plumbing and if you are in the area and need a plumber you cannot go wrong.
Jared McCaskill, Google review, April 2025
Orange marks our base in Damascus. Our four counties are outlined in teal. Tap a town to see its page.

Service area

From Damascus out through four Maryland counties

We work across Montgomery, Prince George's, Howard and Frederick counties. Pick your town to see the problems we see most there and the jobs we do most often.

Water where it should not be?

Backups and broken lines get worse the longer water runs. Call us and tell us what you are seeing. We will tell you what to do right now and what it will take to fix it.

Monday to Friday, 8 AM to 5 PM. Free estimates on every job.

Free estimate

Tell us what is going on and we will call you back

A few details and a photo or two help us show up with the right equipment. The estimate is free, and so is the camera inspection when we do the sewer repair.

Rather talk to a person?(301) 254-8401

Monday to Friday, 8 AM to 5 PM

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