Septic Repairs in Northeast Texas

A wet spot over the field, or sewage at the cleanout, is a septic problem until the camera says otherwise. Underwood repairs tanks, lines, and drain fields across Collin, Grayson, Fannin, Hunt, and Lamar counties.

Sewage at the Tank or the Yard? Call Us.

Stay off the wet ground over the field. Call (903) 449-1677 and we’ll get a septic tech scheduled, evenings included.

Our Septic Repair Process

Call or request a quote: Smell, a wet field, a slow drain, or a lid that’s overflowing.

Find the failure: Tank, baffle, line to the field, or the field itself. We don’t dig the yard on a hunch.

Explain the repair: A baffle, a line, a pump, or a field. You hear it before the excavator shows up.

Repair it: Our septic crew and our plumbers are the same company, so the line in the yard and the line in the house get sorted.

Test the flow: Water through the system, and a look at the lids, before we call it done.

Leave the yard raked: Lids seated, spoil leveled enough to mow around.

The Underwood Septic Standard

Do you repair drain fields or only tanks?

Both, plus the line between them. A crushed outlet line and a failed field are different repairs, and we’ll show you which one you have.

Is a slow drain always the septic tank?

No. It can be the branch line in the house. We check that before we pump a tank that isn’t the problem.

Where do you repair septic systems?

Collin, Grayson, Fannin, Hunt, and Lamar counties. A lot of the homes outside McKinney, Bonham, Sherman, and Greenville are still on septic, and that’s the work.

Do you handle county paperwork?

If the repair needs the county involved, we’ll say so before we start. We don’t invent a permit and we don’t skip one the county requires.

Can I finance a field repair?

Yes. Field and tank repairs are the larger jobs financing is for, subject to credit approval.

Why Underwood

Why Northeast Texas Calls Underwood for Septic Repairs.

We Communicate.

We pick up and we tell you which day the septic crew is coming. A wet field doesn’t need a runaround.

Stocked Trucks, One Trip.

The truck and the repair crew are ours, so a pump-out and a baffle repair don’t require two companies.

Plumbing and Septic, One Call.

Plumbing and septic under one roof. If the backup is the house line, we fix that too.

Seasoned Service Professionals

TCEQ registered, state-board licensed plumbers, years of septic work in this soil.

What We Fix

Septic Repairs, Start to Finish

Baffles and tees: replaced when solids are leaving the tank.
Outlet lines: repaired when the field is fine and the pipe to it isn't.
Lids and risers: brought to grade so the next pump-out doesn't start with a shovel.
Pumps and floats: on systems that dose the field, diagnosed and replaced.
Drain fields: the failed section identified, then repaired or replaced.
House-to-tank lines: camera-checked so we don't dig the wrong trench.

Financing Available

We offer flexible payment options for our services.

Signs It's Time to Call for Septic Repair

A wet, smelly spot in the yard that isn't a sprinkler.
Sewage at a lid, or a lid that won't stay down.
Drains gurgle, and the tank was pumped recently.
Grass over the field is unnaturally green and soft.
A pump alarm that won't stay quiet.
The county failed an inspection on a sale.

Septic repairs for homes in McKinney, Bonham, Sherman, Denison, Greenville, Paris, and the county roads between.

Reviews

Don’t Take Our Word for It. What Our Customers Say.

Reviews

4.9

(1521 Reviews)

    
 
 
         
   Michael Jeter 
 
 
 
 Trustindex verifies that the original source of the review is Google. Plumber knew his job and how to fix the problem fast.
  
 
        
   Sheldon Nicolle 
 
 
 
 Trustindex verifies that the original source of the review is Google. Chad came by and did an amazing job. Peace of mind is a valuable thing. Thanks Underwood!!
  
 
        
   Saphir Butter 
 
 
 
 Trustindex verifies that the original source of the review is Google. I needed a sewer tank cover replaced due to it being hit by the lawnmower. These guy fixed it in less than 30 minutes.
Chad also suggested putting landscaping stuff around the 4 tanks to prevent this happening again. Totally happy with their service.
  
 
        
   Sally May 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great

More Services

We Solve Every Plumbing and Septic Problem.

Plumbing

Repairs, repipes, and installs for every fixture and line in the house.

Septic Service

Inspections, repairs, and installs for tanks and drain fields.

Septic Pumping

Scheduled and emergency pump outs, with a digital report after each visit.

Emergency Plumbing

Burst pipes and backups. We pick up nights, evenings, and holidays.

Sewer

Camera inspection, spot repair, and full sewer line replacement.

Drain

Clogs cleared and hydro jetting that keeps them from coming back.

Water Heater

Tank and tankless repair and replacement.

Water Quality

Filtration, softening, and testing for clean water at every tap.

Commercial Plumbing

Restaurants, shops, and offices kept running with minimal downtime.

Water Line Repair

Leak location, spot repair, and full water line replacement.

Protect Your Home

Generous Membership Plans.

At Underwood, we offer tailored solutions to keep your home and its systems running smoothly. Whether you need memberships to be county compliant or simply maintain your systems for the long haul, we have a plan to fit your needs.

Get in Touch

Ready to Get the Septic System Fixed?

Tell us what’s going on and where and we’ll get a licensed tech out to you ASAP.

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(903) 449-1677

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Service Areas

Septic Repairs Across Northeast Texas and DFW.

We run out of four offices in McKinney, Bonham, and Sherman.

Counties We Cover

Septic repairs across Collin, Hunt, Grayson, Fannin, Lamar, and Cooke counties, from the McKinney, Bonham, and Sherman offices. Bryan County, Oklahoma is septic maintenance only. We are not licensed to plumb there.

Not sure whether you’re in range? Call (903) 449-1677. Related work: Septic Pumping and Grease Trap Maintenance.