Get matched with top septic tank pros in Cotati, CA
There are 4 highly-rated local septic tank pros.
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Verified Reviews for Septic Tank Service pros in Cotati, CA
*The Angi rating for Septic Tank Service companies in Cotati, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.
*The HomeAdvisor rating for Septic Tank Service companies in Cotati, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.
Last update on September 15, 2025
Septic tank pros in Cotati
United States Plumbing
445 S E St
United States Plumbing
445 S E St
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 local quotes requested
As a plumbing company we do drain cleaning, emergency services, new plumbing for a remodel or new construction. We have the experience and dedication to get the job done right! Specializing in Plumbing services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today! No job is too big or too small. We do it all at U.S.P.! Now offering Cured In Place Pipe Relining, ask for details!
"Highly recommend. Ace responded immediately to our issue, and Luis showed up right on time. Professional, courteous, knowledgeable, and reasonably priced. Can't speak highly enough of the experience. Thanks again!"
Robin H on August 2024
As a plumbing company we do drain cleaning, emergency services, new plumbing for a remodel or new construction. We have the experience and dedication to get the job done right! Specializing in Plumbing services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today! No job is too big or too small. We do it all at U.S.P.! Now offering Cured In Place Pipe Relining, ask for details!
"Highly recommend. Ace responded immediately to our issue, and Luis showed up right on time. Professional, courteous, knowledgeable, and reasonably priced. Can't speak highly enough of the experience. Thanks again!"
Robin H on August 2024
Same Day Plumbing, Heating, Cooling
600 American Way
Same Day Plumbing, Heating, Cooling
600 American Way
384 local quotes requested
2 years of experience
Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.
Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.
CALIXTO GENERAL ENGINEERING
PO BOX 518
CALIXTO GENERAL ENGINEERING
PO BOX 518
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 local quotes requested
CALIXTO GENERAL ENGINEERING is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and ensuring the proper functioning of septic systems, protecting public health, and maintaining environmental safety. We provide installation, maintenance, repair, and inspection of residential and commercial septic system. We look forward working with you!
"Prompt and courteous service! Effiicent with time. Kept me in the loop as to the problem and solution."
Joan C on August 2024
CALIXTO GENERAL ENGINEERING is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and ensuring the proper functioning of septic systems, protecting public health, and maintaining environmental safety. We provide installation, maintenance, repair, and inspection of residential and commercial septic system. We look forward working with you!
"Prompt and courteous service! Effiicent with time. Kept me in the loop as to the problem and solution."
Joan C on August 2024
MAC Plumbing
2225 NORTHVIEW ST
MAC Plumbing
2225 NORTHVIEW ST
2 years of experience
MAC PLUMBING is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 15 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
MAC PLUMBING is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 15 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
Bowen Plumbing
520 Pistachio Pl
Bowen Plumbing
520 Pistachio Pl
Customers say: Quick response
8 years of experience
Free onsite estimate
With over 20 years of experience as a plumber, Bowen Plumbing is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!
"I hired this company to install a water heater. It was dead so fast very nice job. Iâ ve had no problems with the work that they did. I recommend him highly to anyone because heâ s very nice pleasant does a great job Iâ d higher of 100 times over."
Annette G on May 2023
With over 20 years of experience as a plumber, Bowen Plumbing is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!
"I hired this company to install a water heater. It was dead so fast very nice job. Iâ ve had no problems with the work that they did. I recommend him highly to anyone because heâ s very nice pleasant does a great job Iâ d higher of 100 times over."
Annette G on May 2023
Prosper Construction Development, Inc.
180 Steuart St., Box 194631
Prosper Construction Development, Inc.
180 Steuart St., Box 194631
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
205 local quotes requested
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025
JOHN MOUNTAIN
355 FARMERS LN APT 6
JOHN MOUNTAIN
355 FARMERS LN APT 6
Customers say: Quick response
22 local quotes requested
4 years of experience
JOHN MOUNTAIN is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"These are the consummate professionals that you want doing your project. Excellent communication from start to finish. Their work is immaculate. Their attitudes are friendly and helpful. On time every day. Cleaned up after. No drama whatsoever. I would hire these guys again in a minute."
Sam Z on July 2025
JOHN MOUNTAIN is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"These are the consummate professionals that you want doing your project. Excellent communication from start to finish. Their work is immaculate. Their attitudes are friendly and helpful. On time every day. Cleaned up after. No drama whatsoever. I would hire these guys again in a minute."
Sam Z on July 2025
RSF Construction Inc.
6910 Monte Verde Drive
RSF Construction Inc.
6910 Monte Verde Drive
236 local quotes requested
6 years of experience
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
C&c associates
C&c associates
20 years of experience
Specialize in land management dirt and underground work. Been doing forestry work for the last 15 years, would like to find something close to that kind of work
Specialize in land management dirt and underground work. Been doing forestry work for the last 15 years, would like to find something close to that kind of work
Chatham Plumbing LLC
19080 Railroad Ave
Chatham Plumbing LLC
19080 Railroad Ave
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Chatham Plumbing LLC offers expert plumbing services in the Bay Area and Lake County. With over 13 years of experience, our family-owned business is dedicated to providing reliable solutions for all your plumbing needs. Connect with us today for exceptional service and personalized attention.
"I would highly recommend Chatham Plumbing! I hired them to install all new plumbing for my new studio. They installed everything new for my bathroom and kitchen and even a water pump outside. They did a very professional and excellent job in a timely manner. You will not be disappointed! Thank you Chatham Plumbing!?"
Adda A on May 2024
Chatham Plumbing LLC offers expert plumbing services in the Bay Area and Lake County. With over 13 years of experience, our family-owned business is dedicated to providing reliable solutions for all your plumbing needs. Connect with us today for exceptional service and personalized attention.
"I would highly recommend Chatham Plumbing! I hired them to install all new plumbing for my new studio. They installed everything new for my bathroom and kitchen and even a water pump outside. They did a very professional and excellent job in a timely manner. You will not be disappointed! Thank you Chatham Plumbing!?"
Adda A on May 2024
Septic Tanks questions, answered by experts
Certain foods are easier on your septic tank than others. Septic-safe foods include yogurt, fruit, cooked veggies, and bread because these items all break down relatively easily and can pass through your system safely. Rotten tomatoes, specifically, are actually good for your septic tank because they can increase the amount of good bacteria in the system.
The main difference between a mound septic system and a conventional one is that the drain field in a mound system is built up into a mound composed of sand and gravel to increase the filtration time the wastewater sees before it is returned to the aquifer. There’s also a significant cost difference, with mound systems typically costing far more than standard septic systems.
The ideal depth of a septic drain field is 18 to 36 inches below the surface. The trenches must be deep enough to allow proper wastewater distribution and filtration while remaining shallow enough for oxygen to reach the soil, promoting bacterial activity that helps break down contaminants. In areas with high groundwater or poor drainage, shallower systems like mound drain fields may be required.
Over time, your septic tank can accumulate a buildup of sludge at the bottom of the tank. If left unpumped and uncleaned, the sludge will back up into your pipes and home, causing failure and extensive (and smelly) damage. Repairs to your septic system can be costly, which is why regular maintenance is required. It takes about 30 minutes to pump a septic tank that’s 1,250 gallons or less or 1 hour for larger varieties.
Talking with a septic pro before planting trees near your tank is best to ensure the roots won’t interfere with your septic system. However, there is an easy way to figure out where to plant a tree—but you’ll need to know how tall it can get when it’s fully grown. For instance, if the tree can reach 50 feet, plant it at least 50 feet from your septic system.
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The Cotati, CA homeowners’ guide to septic tank services
From average costs to expert advice, get all the answers you need to get your job done.
Replacing a drain field requires digging up quite a bit of land and involves a decent amount of testing. Using this guide, you’ll learn how much it costs to replace a drain field based on a few key factors such as size and type of septic system.
The cost of converting a cesspool to a septic system depends on factors like labor, complexity, and materials. Use our guide to estimate your budget.
If it’s been there for a while, it can be hard to find the septic tank in your yard. Learn how much it costs to locate a septic tank with this guide.
Wondering which type of septic system you should choose? Learn about the efficient aerobic septic systems and if it's right for your property.
A perc test for septic analyzes the absorption rate of the soil where a tank is going to be installed. Learn more about the test, cost, and passing grades.
How long can you use a collapsed septic tank? The truth is that you shouldn’t at all to avoid irreparable property damage and health risks.
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