Septic tank pumping companies · Grayson County
Listings last refreshed October 16, 2026
4 Best Septic Tank Pumping Companies in Sherman
4 septic tank pumping companies in Sherman, ranked by Pump Score using Google reviews and profile data.
✓ How we rankFree directory, no pay-to-rank
Septic tank pumping in Sherman, TX is routine work that most homeowners only think about when something goes wrong. A tank that fills with solids can back sewage into the house or push it toward the drain field, and that kind of repair costs far more than a pump out. This guide covers the local companies, what a visit involves, the warning signs to watch for, and what the job usually costs, so you can book with a clear plan.
Top Rated Septic Tank Pumping Companies in Sherman Compared
Compare the top picks side by side. Full write-ups follow below.
| # | Septic Company | Best for | Score | Rating | Verified |
|---|---|---|---|---|---|
| #1 | Underwood Plumbing and Septic | Homeowners who want a septic company with a long track record | 8.6 | 281 reviews | — |
| #2 | Slaughter Septic | An established local septic company with plenty of reviews | 7.1 | 72 reviews | — |
| #3 | Advantage Septic Solutions | Saturday appointments | 5.8 | 27 reviews | — |
| #4 | Grayson County Sanitarian-Septic | Trying a newer local septic company | 1.6 | — | — |
Sherman Septic Tank Pumping Reviews and Ratings
1. Underwood Plumbing and Septic
Best for: Homeowners who want a septic company with a long track record
315 N Travis St c5281 reviews
Score breakdown and details
- Location
- Sherman · 315 N Travis St c5, Sherman, TX 75090
- Track record
- Established, very high review volume
- Rating
- 281 Google reviews
- Profile
- Unclaimed listing (Google data)
- Today
- See hours on profile
Strengths
- 281 Google reviews, a well established track record
- Direct phone number published, no lead form in the way
- Has its own website with more detail on services
- Opening hours published
Watch Out For
The Google profile is not owner verified. Double check the address and phone when you call.
Our take: Our top pick in this area. A Pump Score of 8.6/10 reflects the best combination of rating, review depth and profile completeness here.
2. Slaughter Septic
Best for: An established local septic company with plenty of reviews
2959 Luella Rd72 reviews
Score breakdown and details
- Location
- Sherman · 2959 Luella Rd, Sherman, TX 75090
- Track record
- Established, healthy review volume
- Rating
- 72 Google reviews
- Profile
- Unclaimed listing (Google data)
- Today
- See hours on profile
Strengths
- 72 Google reviews, a well established track record
- Direct phone number published, no lead form in the way
- Has its own website with more detail on services
- Opening hours published
Watch Out For
The Google profile is not owner verified. Double check the address and phone when you call.
Our take: A strong shortlist option with a Pump Score of 7.1/10. Compare availability and price against the septic companies above.
3. Advantage Septic Solutions
Best for: Saturday appointments
1292 Hazelwood Rd27 reviews
Score breakdown and details
- Location
- Sherman · 1292 Hazelwood Rd, Sherman, TX 75092
- Track record
- Growing review base
- Rating
- 27 Google reviews
- Profile
- Unclaimed listing (Google data)
- Today
- See hours on profile
Strengths
- 27 Google reviews, a well established track record
- Direct phone number published, no lead form in the way
- Has its own website with more detail on services
- Opening hours published
Watch Out For
The Google profile is not owner verified. Double check the address and phone when you call.
Our take: A strong shortlist option with a Pump Score of 5.8/10. Compare availability and price against the septic companies above.
4. Grayson County Sanitarian-Septic
Best for: Trying a newer local septic company
100 W Houston StNo reviews yet
Score breakdown and details
- Location
- Sherman · 100 W Houston St, Sherman, TX 75090
- Track record
- New or lightly reviewed
- Rating
- No Google reviews yet
- Profile
- Unclaimed listing (Google data)
- Today
- Hours not published
Strengths
- Direct phone number published, no lead form in the way
- Has its own website with more detail on services
Watch Out For
No Google reviews yet. Ask for references or recent customers you can speak to.
Our take: Scores 1.6/10, but with few reviews the confidence is low. A reasonable call if the septic companies above are booked up.
Hiring Local Septic Tank Pumping in Sherman
Sherman has four septic businesses in our directory, serving Grayson County from two ZIP codes, 75090 and 75092. They differ in review volume, listed hours and how much detail they publish about their work, so the ranking below is a starting point rather than the final word. Read the sections on warning signs and what not to flush before you call, since those habits decide how often you will need a service visit.
Four Septic Companies Serving Sherman, Compared
Sherman's four listed septic businesses range from a company with 281 Google reviews to a county sanitarian office with no review count in our data. Underwood Plumbing and Septic, at 315 N Travis St, has the most public feedback and a website. Slaughter Septic, on Luella Road, has 72 reviews and lists a business phone. Advantage Septic Solutions, on Hazelwood Road in ZIP code 75092, has 27 reviews and describes itself as a full-service septic company.
Grayson County Sanitarian-Septic, at 100 W Houston St, appears in our directory with a phone number and website, but no hours or review count. Because the listing does not show what it handles, call before planning a visit around it. Review counts are Google review counts, and they show how much public feedback exists, not how well each job was done.
- Does the company pump both conventional and aerobic systems?
- Is the price a flat rate for your tank size, or does it change with access and lid depth?
- Is there an extra fee for weekend or after hours work?
- Who locates the lid, and what does uncovering it cost?
- Will the technician check the baffles and the effluent filter during the visit?
What Happens During a Sherman Septic Pumping Visit
A typical pump out is quick, but the steps before the truck arrives decide how smooth the day goes. Most of the delays people report come from a buried lid that nobody located or a tank that was hard to reach. Use the steps below as a checklist for your call and your visit.
- Describe your system when you callGive the company your tank size if you know it, how many people live in the home, and whether the system is conventional or aerobic. Aerobic systems need different equipment and often a maintenance schedule.
- Find or uncover the lidIf the access lid is buried under soil or landscaping, a crew may need to locate and uncover it. Guide pricing for that step runs about $50 to $200, and a riser may be worth discussing if the lid is deep.
- Pump the tankThe truck removes scum, liquid and sludge from the tank. A careful technician checks that the outlet is clear and that the baffles are in place, since broken baffles let solids reach the drain field.
- Check the rest of the systemMany crews look at the effluent filter and note any cracks or leaks they can see. Ask for a written note of what was checked so you can compare it at the next visit.
- Keep the recordSave the invoice and the date. A dated record helps you plan the next pump out and gives an inspector or buyer proof of past service.
Warning Signs Your Tank Is Full
Solids build up slowly, so the first warning signs are easy to dismiss. A single symptom can have other causes, such as one clogged fixture. Two or more of these together is a strong reason to schedule a pump out before the problem spreads to the drain field.
- Drains in several rooms run slowly at the same time
- Plumbing gurgles after you flush or run water
- A sewage smell rises near the tank lid or the drain field
- Soggy or unusually lush green patches appear over the drain field
- Water or waste backs up into a tub, shower or floor drain
How Often a Sherman Household Should Pump
Most septic tanks are pumped every 3 to 5 years, though the right interval depends on how much solid waste enters the tank. Tank size, the number of people in the home, how much water you use, and whether you run a garbage disposal all change the pace. A family of six on a small tank will fill it faster than a couple in a larger tank.
Treat the 3 to 5 year range as a planning window, not a promise. A tank that has been inspected and found clean can sometimes go longer, while a tank with heavy use may need service sooner.
Conventional Tanks
A conventional system relies on settling and separation in the tank. When sludge builds up, it can flow out to the drain field and clog the soil. Scheduling pump outs on a regular cycle protects the drain field, which is the most expensive part to replace.
Aerobic Systems
Aerobic systems use a motor and air to treat wastewater, so they need more attention than a standard tank. Most owners carry a yearly maintenance contract, and the tank still needs pumping on schedule. Ask the company how often its crew services aerobic units and what the contract covers before you sign.
What Not to Flush or Pour Into a Septic Tank
Most septic failures start with items that never should have gone down the drain. Bacteria in the tank break down human waste and toilet paper, but they cannot break down much else. Keeping the wrong items out of the system slows solid buildup and reduces how often you need a pump out.
Common problem items include wipes labeled flushable, grease and cooking oil, coffee grounds, paint and solvents, chemical drain cleaners, medications and feminine products. Even small amounts of paint thinner or bleach-heavy cleaners can disrupt the bacteria that keep the tank working.
- Wipes, even ones labeled flushable
- Cooking grease and oil, which harden in pipes and the tank
- Coffee grounds and food scraps from the garbage disposal
- Paint, solvents, motor oil and other chemicals
- Heavy bleach or strong chemical drain cleaners
Texas Rules, the 10 Acre Question, and Installing Your Own System
Texas regulates on-site sewage facilities through the Texas Commission on Environmental Quality, known as TCEQ. Homeowners often ask about the 10 acre rule, which is a question about property size and how private systems are treated. The details depend on the current TCEQ requirements and on the permitting authority that covers your property, so confirm the rule for your address before you plan a new system or a property change.
Installing your own septic system is a different task from pumping one. New systems generally go through a permit and design process under TCEQ rules, and the design has to fit the soil and the lot. Before any digging, contact the permitting office that covers your property and ask what documents and approvals apply.
Pumping a tank is a maintenance job that local companies perform every day. If your question is whether to replace a failing system instead of pumping it, a company with installation experience can explain your options. Ask for the scope in writing and compare it against the guide range for a new aerobic system, which runs $8,000 to $18,000.
Weekend and After Hours Options in Sherman
Scheduling matters when a tank backs up on a Friday night or during a holiday weekend. The four listed Sherman businesses publish different hours, so compare them before you need help.
- Underwood Plumbing and Septic at 315 N Travis St: listed as open every day of the week and 24 hours
- Advantage Septic Solutions at 1292 Hazelwood Rd: listed Monday through Saturday
- Slaughter Septic at 2959 Luella Rd: listed Monday through Friday
- Grayson County Sanitarian-Septic at 100 W Houston St: no hours listed in our data, so call first
