Toilet Repair and Installation in Northeast Texas

A toilet that runs all night, rocks on the floor, or overflows into the bath is a small fixture with a messy bill. Underwood repairs and installs toilets across Collin, Grayson, Fannin, Hunt, and Lamar counties from offices in McKinney, Bonham, and Sherman.

Toilet Overflowing? We'll Get a Plumber Out.

Shut the valve on the wall behind the tank if you can, then call. We’ll get a plumber on the schedule, evenings included.

Our Toilet Repair Process

Call or request a quote: Tell us if it’s running, leaking at the base, or backing up. We pick up nights and evenings.

Find the cause: Fill valve, flapper, wax ring, flange, or a clog past the bowl. We don’t guess and sell a new toilet first.

Explain the options: A rebuild, a flange repair, or a new toilet. You hear the difference before any work starts.

Fix it in one trip: Vans carry the common fill valves, flappers, wax rings, and supply lines, so most toilet repairs finish on the first visit.

Test the flush: We fill the tank, flush more than once, and check the base and the supply for leaks.

Leave it clean: The bath floor gets wiped down before we head out.

Underwood plumber working at the sink of a modern kitchen island

The Underwood Plumbing Standard

Repairs, flange and wax-ring replacement, supply lines, and full toilet installs. If the clog is past the bowl, we treat it as a drain, not a flapper problem.

Not always. A running tank is often a fill valve or flapper. We’ll say so if a rebuild is the cheaper fix, and we’ll say so if the bowl or the flange is done.

McKinney, Allen, Prosper, Sherman, Denison, Bonham, Greenville, Paris, and the towns between, out of four offices in McKinney, Bonham, and Sherman.

Same-week scheduling on routine installs, and evenings when a toilet is the only one in the house. Call (903) 449-1677 and we’ll put a plumber on the schedule.

Yes, on larger installs, subject to credit approval. Ask the plumber or see the Financing page.

Why Underwood

Why Northeast Texas Calls Underwood for Toilet Repair.

Underwood technician running a drum auger into a floor drain on herringbone tile

01

We Communicate.

You get a person, not a queue. Nights and evenings included, we pick up and tell you when the plumber is actually coming.

Underwood technician shaking hands with a smiling homeowner at a dining table

02

Stocked Trucks, One Trip.

The parts for a running tank and a leaking base ride on the van, so a toilet repair usually ends on that visit.

Underwood service van parked in the driveway of a two-story stone home

03

Plumbing and Septic, One Call.

If the toilet is backing up because of the line or the tank in the yard, we handle that too. One company, not a second call.

Two Underwood technicians kneeling in a flower bed beside a home, working at a cleanout

04

Seasoned Service Professionals

State-board licensed plumbers, TCEQ registered, with years of fixture work across DFW and Northeast Texas.

What We Fix

Toilet Repairs and Installs, Start to Finish

Two Underwood technicians standing in front of a septic pump truck and service van

Financing Available

We offer flexible payment options for our services.

Signs It's Time to Call for Toilet Repair

We set and repair toilets for homes in McKinney, Allen, Prosper, Sherman, Denison, Bonham, Greenville, Paris, and the towns in between.

Reviews

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

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Reviews

4.9

(1521 Reviews)

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Michael Jeter
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Plumber knew his job and how to fix the problem fast.
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Sheldon Nicolle
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Chad came by and did an amazing job. Peace of mind is a valuable thing. Thanks Underwood!!
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Saphir Butter
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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.
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Sally May
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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.

Underwood technician shaking hands with a homeowner at a kitchen table with paperwork

Get in Touch

Ready to Get the Toilet Fixed?

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

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Service Areas

Toilet Repair Across Northeast Texas and DFW.

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

Counties We Cover

Toilet repairs and installs scheduled 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: Faucet Repair and Installation and Drain Cleaning.