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MJ Septic, LLC is dedicated to helping our customers be the owners of a well maintained septic system. A properly maintained septic system, is a good septic system.

Proudly Serving South Texas for Over 15 Years!

General Info
MJ Septic is San Antonios premier company for a wide range of residential and commercial septic tank services. We have been a local family-owned and operated business since 2000. Over the years, we have gained a reputation for excellence and quality service. Our highly trained and uniformed staff is always, courteous and friendly. We are licensed through T.C.E.Q. (Texas Commission on Environmental Quality). At MJ Septic, we always strive to provide quality workmanship and service to all of our customers. When it comes to your septic system, its important that you have a company you can rely on when you are experiencing problems. We offer honest and competitive rates for a wide range of services. No job is too big or too small for MJ to handle! Give us a call today to schedule a service appointment!
BBB Rating
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BBB Accredited businesses follow the BBB Code of Business Practices and pay a fee for accreditation review and monitoring. Accreditation is not a BBB endorsement or evaluation of the business’ product quality or competency in performing services.

BBB Rating and Accreditation information may be delayed up to a week.
Regular Hours
Mon - Fri:
Sat - SunClosed
Residential & Commercial *Septic Tank Cleaning* Aerobic Service/Maintenance Contracts* Aerobic & Conventional Septic System Installations* Real Estate Septic Inspections* Drain Field Repairs* Video Inspection* Estimates are Always Free* 
Pro Flo Aerobic
Payment method
amex, discover, visa, master card
MJ Septic, LLC is located in far north Bexar county, we service all Bexar and surrounding counties - From North to South to East to West - MJ Septic is the best!

If You're Looking For A Reputable Septic Cleaning, Repair And Installation Company, Then Look No Further. We're A company That Takes Pride In The Work We Do. Every Customer To Us Is Very Special And We Want You To Be Our Customer For Life! Our Service Is Superior And Our Prices Are Fair. We Offer Video Inspection Which Enables Us To Find Problems Quickly And Make Repairs Accurately. If Your Need A Septic System Inspected For A Real Estate Transaction, Let Us Do A thorough Inspection. If you're Looking For A New Septic System, We Offer Conventional Septic Systems As Well As Aerobic Septic Systems Of Many Different Sizes. We Finish On Time And On Budget! We Service San Antonio And Surrounding Areas Including New Braunfels, canyon Lake, Medina Lake, Bandera, Pipe Creek, Pleasanton, Poteet, Floresville, Devine, Lytle, China Grove, Elmendorf, Seguin, Fair Oaks Ranch, Boerne, Bergheim, Castroville And Lots Of Areas In Between! Give Us A call Today And Give Us An Opportunity To Give You The Best Service You've Ever Experienced!



Angie's List - 2013 Super Service Award

Social Links
Septic Tanks & Systems, Building Contractors, General Contractors, Inspection Service, Real Estate Inspection Service, Septic Tank & System Cleaning, Septic Tanks-Treatment Supplies, Sewer Contractors


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Cheryl V.



MJ Septic has the WORST customer service I have ever experienced. Their field employees are competent, but they won't ring your doorbell to let you know as they are coming or going (they do call the day prior...which is nice, but it's common courtesy to announce yourself upon arrival/departure). My main problem is with their office staff. The person 'Jennifer' who answers the phones is the very rude. Her un-professionalism is out of control. I just tried to cancel my service with MJ Septic and she kept sending me to a line that no one picked up and didn't allow for voicemail messages. I called twice with the same results, then when I tried a third time, she must have blocked my number or something because the call wouldn't go through. I simply wanted her to take a message -- you would think that would be nothing out of the normal. Very, very rude person. I remember talking to her previously about a problem I had with my septic tank and she was very condescending and arrogant. I asked her if someone could come out to help fix a line that got broken during a construction project and she basically scolded me about how the equipment shouldn't have gone over the pipes. I wasn't trying to have MJ Septic fix the problem for free or anything...I was simply trying to get them to come out to fix it. I have no idea how they stay in business with customer-facing employees that have such an attitude. Absolutely worst experience. I highly do NOT recommend this company. Additionally, they are very over-priced.

Gary J.



After using mj septic every service I’m getting charged for new stone diffuser, telling me my pump is about to go out when it was just replaced etc. My last contracted service company replaced diffusers maybe every other visit, sometimes just let me rinse it off in the sink and reuse it. They don’t do advance scheduling, just call when they’ll be in the area and if it doesn’t work you have to reschedule with them. Not impressed with service or attitudes, won’t be using them much longer.

Diane R.



I highly recommend this company. They are prompt, professional and knowledgeable. The technician explained everything to me and was very helpful. Great company.

Lindsey H.
Edited: 04/18/2018

I called them to schedule a clean out between our septic system and our home. They came out and quoted $350 to do the service so we scheduled it. First problem was they didn't show up on time. Tried calling several times with no response. They showed up later that day and they called me to tell me they didn't install what I hired them to. I asked why and he said he didn't know and would call me back later. I tried calling him again with no response. The following day, someone from the office called me and said I owed $175 for an inspection. I told her I didn't order an inspection but I needed to know why they didn't install the clean out. They would not release that information until I gave them $175 for the inspection I didn't order. I moved on and hired another company.

Weeks later I found they reported me to bexar county public works for a faulty septic system.

Very shady service here. Do not hire them.

claimed iconBusiness Response09/22/2016

Yes ma'am this was a real estate transaction, the realtor kept calling for your report, which we do many jobs for, I also told her I would not release the report until we were paid. We did not install a clean out on this job because the system was failing, this would have been a complete waste of your money. We stand by our decision. It is office policy to receive payment on or before any real estate transactions. We in fact are a very honest company and sometimes our clients to not accept the bad news given about their failing systems or do not agree with our office policies on payment.

This listing has been claimed by a business representative.
Keese R.



Very responsive and reasonably priced. They were prompt and courteous. I would not use anyone else.

Jt P.



Excellent service. Reasonably priced. Quick response for out of routine maintenance service.

Ingrid S.



We have used Mj Septic for the last few times and have been happy. Nice people and quick to respond.

Charmaine L.



We were in a bind building a custom home due to a horrible contractor that we fired. MJ Septic came to our rescue as we were having a hard time finding someone to put in our septic system in ASAP. They put in the day he said he would, and it passed inspection with ease.All for an excellent price. I would definitely recommend MJ Septic. Thank you so much!!

Eleanor M.



MJ Septic is great! Owners live in TWP and business is located right behind Timberwood Park Elementary School.

Ethe F.



Exceptional customer service! Always current with my quarterly inspections with a detailed email After the inspection! I would highly recommend MJ Septic! Great family owned business!

Lerin B.



We called MJ to come to our home and pump out our septic system. This company had very good reviews from our Timberwood Park Nextdoor neighbors. Sure enough, they were very prompt, on time and explained everything to us before they started the work. We had never lived where we had a storage tank or septic system so we didn't know what to expect. Stephanie covered everything very well over the phone and also what the costs could be or would be. Our tech came out and since we had the old type of system he had to spend some time trying to locate the entry to the tank. He was very patient and really seemed to know what he was doing. All I can say is this company did what they said they would do. They were very customer friendly, they arrived early, they maintained accurate readings, and their equipment looked to be " remarkable clean ", a trait that means allot to me. They care about image in a business where this could be secondary. They also have a discount for our neighborhood which was nice. Yes we will call them again.

Nonna Y.



GREAT SERVICE!! Above and beyond the norm. I called them for septic pumping and they arrived right on time the next day and pumped till their tank was full, returned within 2 hrs and completed the job. I asked if they could install a riser to tank, and within 2 hrs another gentleman returned and installed it. Very prompt and courteous.

Sam S.



MJ Septic, they came out the same day we called. They did a great job & were very reasonable as well!

Christa B.



MJ Central Texas Septic is who they used when we built our home in 2010. We have been very pleased with them. Its always nice to get more than one bid.



Fast Service......

These guys respond quickly and their prices are pretty good too. I would recommend them!

claimed iconBusiness Response09/22/2016

Thank you for the review! We appreciate your business, please let us know if we can be of further assistance in the future.

This listing has been claimed by a business representative.