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Top-Rated Sewer main install, replace or repairers in Rockville - Updated Nov 2026

Avatar for DAY & NIGHT PLUMBER LLC
DAY & NIGHT PLUMBER LLC
4.8(
93
)
Sewer Main - Install, Replace or Repair

Serving Rockville, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"They contacted me right away and had a plumber out in just a few hours (and it wasn’t an emergency repair!). Tawn was very kind and professional and repaired the toilet quickly. Very happy with Day and Night Plumber and I’ve already scheduled an appt. with them for more work!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time11 hrs
5 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Remedy Plumbing and Drain Cleaning
Remedy Plumbing and Drain Cleaning
4.8(
78
)
Sewer Main - Install, Replace or Repair

Serving Rockville, MD and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"I called Remedy at 7:30am to request a new toilet installation, and they were able to get it done the same day at a very reasonable price. The technician took his shoes off before entering the house and kept his mask on the entire time. He was professional and courteous, as was the office personnel I spoke with. They removed the old toilet, installed the new toilet, processed the paperwork, and disposed of the old toilet, all in less than an hour. I would highly recommend Remedy Plumbing and will certainly use them again if needed."
Additional Photos
Additional Photos
9 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Mr. Rooter of Maryland
Mr. Rooter of Maryland
4.3(
1,100
)
Sewer Main - Install, Replace or Repair

Serving Rockville, MD and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

"Mr. Rooter came out to perform the replacement of a main water line inside that has been leakkng. The technician's team were professional as they setup and prepared to perform the work inside as well as cleaned and removed debris from the construction."
Mr. Rooter of Baltimore fleet
Response time50 mins
17 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Roto-Rooter Plumbing & Water Cleanup - Baltimore
Roto-Rooter Plumbing & Water Cleanup - Baltimore
4.2(
662
)
Sewer Main - Install, Replace or Repair

Serving Rockville, MD and surrounding areas

Approved (Corporate)

In business since 1935

Free estimates

Emergency services offered

When you need an emergency plumber in Baltimore, MD or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

Roto Rooter- Baltimore
Roto Rooter- Baltimore
Roto Rooter- Baltimore
Roto Rooter- Baltimore
Roto Rooter- Baltimore

+6

Recommended by80%of homeowners
P & C Plumbing
5.0(
10
)
Sewer Main - Install, Replace or Repair

Serving Rockville, MD and surrounding areas

Approved

In business since 2024

Free estimates

"Our sewer line collapsed unexpectedly, and I was stressed about the cost and the mess. Dwayne Young made the process so much easier than I expected. They arrived on time, treated my property with care, and kept me updated every step of the way. The crew worked quickly, cleaned up after themselves, and the pricing was more than reasonable for the amount of work involved. It’s rare to find a company that’s this honest and reliable. Highly recommend their sewer line repair services!"
3 neighbors recently requested a quote
Avatar for Pohlman Plumbing Inc
Pohlman Plumbing Inc
4.4(
42
)
Sewer Main - Install, Replace or Repair

Serving Rockville, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"I would most definitely hire Pohlman Plumbing to care of future projects at in my home! The staff were professional, prompt/on time, and performed quality work. The office staff were also pleasant and relayed my repair concerns perfectly to the technician. If you are looking for quality work, look no further!"
Finished Shower
Finished Shower
Panoramic View
Vanity
Mid-replacement

+10

Response time8 hrs
Response rate97%
Recommended by86%of homeowners
Avatar for PLATINUM PLUMBING AND DRAINS LLC
PLATINUM PLUMBING AND DRAINS LLC
4.9(
13
)
Sewer Main - Install, Replace or Repair

Serving Rockville, MD and surrounding areas

Approved

In business since 2021

Credit card accepted

"We recently had a major drain line repair and replacement completed by Platinum Plumbing and Drains, and the experience was exceptional from start to finish. After two other plumbers failed to follow up or even return calls, Platinum responded promptly and professionally. The job involved diagnosing a serious basement flood, camera inspection, excavation, and replacement of failed Orangeburg pipe. Humberto clearly explained the problem, showed camera images, and outlined repair options without pressure. They used modern pipe-bursting technology to replace the sewer line without trenching the entire yard. Luís and his crew demonstrated outstanding technical skill and attention to detail, carefully ensuring proper grading, bedding, and flow before closing the excavation. They even worked through the weekend to minimize disruption. Communication was excellent throughout, the property was treated with care, and cleanup was impressive for a project of this size."
1 neighbors recently requested a quote
Avatar for John C Flood LP.
John C Flood LP.
4.4(
62
)
Sewer Main - Install, Replace or Repair

Serving Rockville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1920

Free estimates

Warranties offered

"Timely, professional, and personable technician. Provided options for repairs and coordinated an assessment for replacement of system. I’m a customer that was moved with the sale of A-One to John C Flood and I am happy with the transition. The work was on my HVAC system, but that was not listed in the drop down."
Tech Education
John C. Flood - Going to Work
John C. Flood - Teamwork
John C. Flood - Busy Morning
John C. Flood - Work Underway

+28

Response time2 hrs
43 neighbors recently requested a quote
Recommended by49%of homeowners
Avatar for Mid-Atlantic Trenchless
Mid-Atlantic Trenchless
4.0(
223
)
Sewer Main - Install, Replace or Repair

Serving Rockville, MD and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"I delayed having my beautiful lawn ripped up until after the growing season in order to replace my 73 year old water service line. After Doug McLendon came by for the estimate he assured me that when they completed the work I would hardly notice where they dug, which I was delighted to discover was accurate. During the estimate Doug suggested that they run the water service line diagonally under my lawn, so that it entered my basement in the laundry room where all the rest of the plumbing was and not 30 feet away on the other side of the basement, Doug and his team (Rafael, Garrett and Chad) arrived at 8 am sharp and by 9:30 am the horizonal drill head penetrated the cinderblock wall behind my washing machine. Over the next few hours they tied in this service line with the rest of the house plumbing and enabled me to use my plumbing until they returned the next morning for the WSSC inspection and backfill. Rafael, Garrett and Chad were polite, communicative and very hard working. Although the cost is somewhat high, I would highly recommend Mid-Atlantic Trenchless if you need to replace a water service or sewer line, but do not want to wait a few years for your lawn to grow back in,"
At Work
At Work
Trenchless Work
Trenchless Work
Trenchless Work

+6

Response time1 day
Response rate89%
3 neighbors recently requested a quote
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FAQs for sewer main install, replace or repair projects in Rockville, MD

Most trenchless sewer line replacements can be completed within one to three days, though this varies based on your situation. Simple repairs on accessible lines might be finished in hours, while complex systems or challenging soil conditions could extend the timeline. The reduced excavation requirements result in faster completion compared to traditional trenching methods.

Trenchless pipe lining may reduce the interior diameter of your pipes, which could affect flow capacity in already narrow lines. This method also requires the existing pipe to maintain sufficient structural integrity to support the new liner. Severely collapsed sections, major joint separations, or completely misaligned pipes might not be suitable candidates for lining and could require alternative approaches.

Trenchless sewer pipe liners are rated to last up to 50 years when properly installed and maintained. Actual longevity depends on installation quality, usage patterns, and environmental factors like soil movement or tree root intrusion. Regular maintenance and avoiding problematic disposal practices (like flushing non-biodegradable items) can help maximize your system's operational lifespan.

Trenchless technology availability varies by region, with greater accessibility in metropolitan and suburban areas where specialized contractors operate. Some rural locations may have limited access to trenchless equipment and expertise. Local regulations and soil conditions also influence availability. A professional assessment of your property and local contractor options will determine if trenchless methods are feasible for your specific location.

Professional video inspection provides the most reliable assessment of whether your sewer issues suit trenchless repair. Generally, pipes with moderate damage, like small cracks, minor leaks, or partial blockages, respond well to trenchless techniques. Completely collapsed sections, severe misalignments, or extensive structural failures might require traditional excavation. Consulting with contractors who offer both methods ensures you receive unbiased recommendations.

Quality trenchless sewer replacement often includes a workmanship guarantee from the contractor. The specific terms vary by company and region, but many professionals stand behind their installation for at least one year. Material warranties may extend longer, depending on the pipe products used. Always request written warranty information before hiring, and understand exactly what's covered and what might void your protection.

The Rockville, MD homeowners’ guide to sewer main install, replace or repairs

From average costs to expert advice, get all the answers you need to get your job done.