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TRUSTED BY WINDSOR, CA HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon22
    Verified septic tank services reviews

Top-Rated Septic tank pros in Windsor - Updated Nov 2026

Avatar for G Septic Service
G Septic Service
4.9(
15
)
Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Windsor, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"This was the 1st time using this G-septic as the other company we have used in the past appears to not be in business anymore. Was thoroughly impressed by the services we received, we had them pump our tank and after they finished they noticed my main pipe entering the tank was cracked. They were able to not only let us know of the need for a repair but gave us a price to fix it. He dug out the trench and quickly fixed it at a very very reasonable price. Super pleased, had a great conversation with Edgar the owner while he was onsite turns out this man who looks to be in his late 20's has been doing this work for 20 years and boy you can tell, he is so knowledgeable, sure glad we stumbled upon him when we Google searched septic pumpers."
Response time7 hrs
7 neighbors recently requested a quote
Recommended by92%of homeowners
Superior Septic Pumping Service
4.4(
30
)
Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Windsor, CA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"When our septic pump stopped working I called Superior Septic. Angel came out and figured out the complicated problem that could have eluded someone with less experience, and skill. I am impressed with how fast he fixed our pump. I highly recommend him and his company."
Response time6 hrs
Recommended by92%of homeowners
Avatar for Sanitary Solutions Corp.
Sanitary Solutions Corp.
5.0(
5
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Windsor, CA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. \n \nCall us today you'll be pleased you did. Thank you

3 neighbors recently requested a quote
Avatar for M P Excavating & Engineering
M P Excavating & Engineering
4.5(
15
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Windsor, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Ultimately happy with the end result and fair price for our 30ft sewer lateral replacement. Miguel was professional, friendly, and hardworking. However, communication was a bit spotty and we had follow up many times (I understand this is the busy season, though). Also, it was unclear if we were supposed to call 811; we assumed he would, but didn't, and this was an issue as the water line was hit during construction and the city had to come to shut it off on the whole street. It was handled quickly, but would have been avoidable. The project ended up taking much more time than expected, but it was completed in a day, as promised. I would recommend him, but you should be diligent and responsible yourself to make sure all the right steps are being taken."
Large drainage project
Large drainage project
Large drainage project
Large drainage project
Large drainage project

+11

Response time1 day
Response rate98%
22 neighbors recently requested a quote
JOHN MOUNTAIN
5.0(
7
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Windsor, CA and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

"John was very helpful and professional. His crew was polite and experienced. He fixed our drainage/ leakage problem completely. We were very happy with his work."
Response time10 hrs
8 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for PEREZPLUMBING
PEREZPLUMBING
5.0(
15
)
Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Windsor, CA and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

"Jesus Perez came right away on a Saturday to fix a leak that had been occurring underneath our kitchen sink. He was professional, polite and proficient! He had it fixed quickly. His rates are great. And he warranties the work. As new homeowners we are so glad to have Jesus as our official go to for any future plumbing needs."
Septic tank pump out
Septic tank pump out
Kitchen sink install
Kitchen sink install
Kitchen sink install

+7

Avatar for Benjamin Franklin Plumbing
Benjamin Franklin Plumbing
3.7(
192
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Windsor, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. \n \nCall us today you'll be pleased you did. Thank you

Waterheater
Waterheater
Tankless install
Tankless install
Tankless install

+3

14 neighbors recently requested a quote
Recommended by87%of homeowners
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Septic Tanks FAQs, answered by experts

Septic tank locations are sometimes public record, although it depends on local laws and the property age. Older properties may not have the septic tank information on public record. To check, you can talk to local permitting agencies, such as your local health department, the local environmental department, or the county clerk.

DIY is not recommended due to safety and technical requirements. Hire professionals for accurate diagnosis and repair.

The best times of year to empty or pump a septic tank are spring and fall. Many professionals recommend spring because the ground has thawed, making the tank easier to access and the waste less likely to be frozen. Pumping before summer also helps avoid conflicts with vacations or outdoor gatherings. Fall is another great option, as contractors may be less busy, and servicing the tank can reduce the risk of overflow from winter and spring precipitation. While summer is also a suitable time, winter is generally not recommended due to frozen ground.

Several things can ruin a septic tank over time, including dumping harsh chemicals (like bleach and ammonia), pesticides, and paint thinners down your drain because they can kill the bacteria in your septic tank. You should also make sure to only flush waste and toilet paper in your toilet—otherwise, you could clog your system.

A septic smell may be harmful because sewer gas is dangerous depending on the exposure amount and length of time. Sewer gas is made up of multiple gases, including hydrogen sulfide, methane, ammonia, and carbon dioxide. Some of these gases, like hydrogen sulfide and ammonia, are toxic to humans and can be fatal in high concentrations or long exposures.

The Windsor, CA homeowners’ guide to septic tank services

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