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

Avatar for Jess Plumbing
Jess Plumbing
4.9(
50
)
Sewer Main - Install, Replace or Repair

Serving San-gregorio, CA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"I had a backup in my main sewer pipe and Jess Plumbing came out and did a thorough inspection, he then found that my main sewer pipe was incorrectly installed by the previous installer. To make a long story short, this guy knows what he is doing, has the equipment including cameras and an excellent team. They did an AMAZING job at a FAIR price. Replacing the main sewer pipe is no easy job, but they were able to do it and do it right. They also cleaned everything up at the end of the day and even planted back the plants that had to be removed during the process!"
Plumbing Project
Plumbing Project
Plumbing Project /water main
Old gate valve/ doesn’t shut off water
Installed new Zoeller sewer tank lid

+178

Response time1 day
Response rate100%
Recommended by93%of homeowners
Avatar for In & Out Plumbing & Construction Inc
In & Out Plumbing & Construction Inc
4.2(
79
)
Sewer Main - Install, Replace or Repair

Serving San-gregorio, CA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Short version:
They got the job done, but it took two visits and cost about 2-3 times more than it should have because they initially arrived with the wrong equipment and then recommended an unnecessary, expensive video scan.  The extra cost was due to their error and they should have covered at least some of it (if not all) but they refused.

Details:

Our sewer line backed up between our house and the street, and so I called In and Out to clear it.  They arrived with nothing but a hand snake because supposedly other equipment was in the shop.  The plumber was able to (temporarily) clear the obstruction with the hand snake.  Charge: $250, which also included cleaning the trap in one of our interior sinks.  So far so good (although if I'd known they'd come with just a hand snake, I would have done it myself...)
Two weeks later, the line backs up again, because the hand snake only punched a small hole in the obstruction rather clear it completely.  I called In and Out to come back with the correct equipment.  

This time they arrived with the proper equipment, including the full sized snake and water jet to clear the roots.  Given the previous failure to remove the blockage, they recommended sending the video camera down the pipes to diagnose the problem.  Problem = roots from the trees near the sewer line (surprise!).  They used the snake + water jet to remove the roots and clear the obstruction.  Now everything works.  Bill = another $775.  

 Why do they get a C grade?
Issue 1: they refused to refund any of the money from their first, failed intervention.  If they'd just arrived with the right equipment, we would have removed the roots on day one, sparing us another sewer back up and another expensive visit.  They brought the wrong equipment and didn't solve the problem -- there should be at least a partial refund.  Even an apology would have been nice.  But I didn't get either.   instead, we come to Issue 2

 Issue 2:  when they came back, they recommended an unnecessary (and very expensive) video scan of our system which just turned up the obvious problem of roots from the nearby tree.
Total cost was over $1000, for a job where most plumbers would have just gone in with the big snake + jet on day one and knocked out the roots for $250-400.   In and Out ultimately fixed the problem, but we had to endure 2 days of sewer back up and paid 2-3x what we should have.

On the plus side, they were always very prompt, professional, and friendly in person (aside from issues noted above)"
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line

+27

Response time1 day
Response rate99%
12 neighbors recently requested a quote
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
722
)
Sewer Main - Install, Replace or Repair

Serving San-gregorio, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"Can not imagine a better response, starting with my call for assistance, response time and how the technician, Tad methodically diagnosed the problem. We have an obscure kitchen fixture that required service in Feb 2019. Under warranty the problem was easily diagnosed by me, a problem possibly caused by me and a replacement part sent and installed by Albert Nahman team. Problem: I broke the faucet cartridge. Current Problem: restricted hot water flow in this kitchen sink only. Turns out the new cartridge part is now malfunctioning. I called and Tad arrived taking a step by step approach ruling out possible causes: a clog here or there, build up of sediment, or blockage in the lines or cartridge. The company that sells the product got on the phone with Tad and they collaborated on the problem and the tech person gave Tad one more thing to try. After the collaboration it is agreed, problem persisted and therefore that new cartridge part is now malfunctioning and will be shipped free of charge in two days. Thanks to all, who made this possible and I trust we will have Tad here again soon to finalize this fix. BTW, cost of service was less than expected given going rates for such a call lasting in excess of one hour. Another comment, spending time with Tad during the repair was a pleasure to have him explain, collaborate, listen and just chat. Questions on who to call next time, no question who I will call next time. I have read criticism of costs: In the Berkeley area "How much does it cost to hire a plumber? Some plumbers have a minimum fee for a service call. They might charge anywhere from $175-250 to come out and give you a consultation. Plumbers may give you a general service rate of $128-148 per hour when there are a lot of unknowns about a project and they aren't sure how long it will take. Some charge a flat rate for their plumbing services. For example, you may get charged $175 for a sink or drain cleaning, while toilet installation costs $500." Today costs are upfront, same as charges in Feb, $69 to arrive and assess the problem. Here in excess of one hour for $129 minus $25 coupon, total charge $173. I am ok and I expected these costs. If I was in Philly, where I grew up, I could call an uncle or cousin and get a better rate, a family rate. This is going rate for our area."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
44 neighbors recently requested a quote
Avatar for Atlas Trillo Heating & Air Conditioning
Atlas Trillo Heating & Air Conditioning
4.3(
37
)
Sewer Main - Install, Replace or Repair

Serving San-gregorio, CA and surrounding areas

Approved (Corporate)

In business since 1953

Free estimates

Emergency services offered

Atlas Trillo Heating and Air Conditioning dates back to the early 1950's when the Silicon Valley was in its infancy. Atlas Trillo serves both residential and commercial customers with best in energy efficient, environmentally safe equipment and services for your ideal comfort systems. \n \nWhether it's a new installation, a retrofit, replacement, duct cleaning, or routine service, our factory-trained mechanics provide the skill and expertise on which your comfort depends.

Unclog Drain
12 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Drain And Water Inc
Drain And Water Inc
5.0(
1
)
Sewer Main - Install, Replace or Repair

Serving San-gregorio, CA and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

Drain & Water: Reliable Plumbing & Drain Solutions\n\nAt Drain & Water, we provide expert drain cleaning, hydro jetting, leak detection, and sewer line replacements using advanced TrenchFree technology—a non-invasive, cost-effective solution. Whether it's a clogged drain, a damaged sewer line, or a plumbing emergency, we deliver fast, reliable, and long-lasting results.\n\n✅ Drain Cleaning & Hydro Jetting – Powerful solutions for tough clogs.\n✅ Sewer & Water Line Repairs – Minimal disruption, maximum durability.\n✅ Camera Inspections – Identify issues before they become costly.\n\nServing Santa Clara & San Mateo Counties, we work with homeowners, businesses, and institutions to ensure top-tier plumbing solutions. Plus, with our 40-year warranty, you can trust our work is built to last.\n\n📞 Call now for a free consultation and get your plumbing problems solved today!

Sewer Replacement
Pipe Bursting Tech
San Jose Pipe Bursting
Kitchen Spot Repair
Kitchen Line Repair

+2

Response time1 day
Response rate96%
Avatar for TRIO Heating, Air & Plumbing
TRIO Heating, Air & Plumbing
5.0(
5
)
Sewer Main - Install, Replace or Repair

Serving San-gregorio, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Trio Heating and Air was an amazing company to work with! About a month ago I had Adrian come out and give me a quote on a new furnace for my home and he was so knowledgeable and easy to understand on what type of system I was needing for my home to lower my bill. We went with Trio and they scheduled the install to be done the very next day! Ever since then the furnace has been working so good they set the thermostat up just right I barely had to change it when it become cold outside. It was such an easy and fast process. I would defiantly recommend Trio Heating and Air for any for your heating and cooling needs!"
Heating & Air Conditioning Installations
Heating & AC Install
Heating & AC Install
Heating & AC Install
Heating & AC Install

+101

Response time4 hrs
Response rate93%
11 neighbors recently requested a quote
Avatar for Discover Plumbing and Rooter
Discover Plumbing and Rooter
4.8(
21
)
Sewer Main - Install, Replace or Repair

Serving San-gregorio, CA and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"I contacted Discover to ask for a quote in the morning and they responded with the best price and the shortest window to come over. They only had a one hour window as opposed to some other devices that have 4+ hours which they arrived as promised. Not only did a service tech arrive, but the manager as well. Both were extremely professional and assessed the problem before taking any action. They isolated it to the mainline and was able to run a commercial snake to have everything unclogged in less than an hour. Once everything was tested with the other water lines to make sure the problem was resolved they cleaned up the work area and hooked up the lines back to the washing machine. I can't express how much I would recommend this company for jobs big or small. I'll definitely be reaching out to them for service in the future."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+21

Recommended by57%of homeowners
Benjamin Franklin Plumbing Novato
3.9(
264
)
Sewer Main - Install, Replace or Repair

Serving San-gregorio, CA and surrounding areas

In business since 1996

Free estimates

Emergency services offered

")This happened some time ago so memories are fuzzy. Benjamin Franklin Plumbing showed up on time in full company uniform and a brand new truck. It looked new anyway. The rep had all the tools and knowledge required to do the above listed work. He was well informed and knowledgeable about industry trends (tank-less water heaters). In less than 90 minutes he had the water heater drained and refilled and the cut-off valve installed. I would recommend and use Benjamin Franklin again for any plumbing issues.
"
Recommended by73%of homeowners
Avatar for Rayne Plumbing & Sewer Svc Inc
Rayne Plumbing & Sewer Svc Inc
4.4(
108
)
Sewer Main - Install, Replace or Repair

Serving San-gregorio, CA and surrounding areas

In business since 1964

Free estimates

Emergency services offered

"I purchased the special through Angie's list for the faucet replacement. Daisy, with Rayne, called me before I could call them to schedule the appointment! Super fast, and super friendly. I got an appointment for just a couple of days later! Super convenient! When I made my appointment, I mentioned that my daughter had a show for camp on that afternoon, and they would have to be there and finished by 2pm. On the day of the appointment, they called me first thing in the morning and came even earlier than promised! Super punctual! Aaron Campa, was very friendly, and completed the work very quickly. He even checked with me on the positioning of our multi-hose connector! He went above and beyond! All in all, I couldn't say enough positive things about Rayne, and my experience with them. I will now use them for all my plumbing needs!"
Custom Bathroom Sink
Sunnyvale Plumber
Value Repipe
Woodside Shower Valve
Recommended by84%of homeowners
Showing 1-10 of 47
FAQs for sewer main install, replace or repair projects in San-gregorio, CA

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 San-gregorio, CA 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.