Water Heater Services in Northeast Texas

No hot water, a puddle at the tank, or a unit that rumbles every time it fires. Underwood repairs and replaces tank and tankless water heaters across Collin, Grayson, Fannin, Hunt and Lamar counties, from our offices in McKinney, Bonham and Sherman.

No Hot Water? We Answer Day or Night.

Water heater quit this evening, or let go on a holiday, we’ll get a truck rolling.

Our Water Heater Process

Call or request a quote: Tell us tank or tankless, and whether you have no hot water, a leak, or a unit that’s loud. We pick up nights and evenings.

Find the cause: Element, thermostat, anode, dip tube, gas valve, or a tank that’s finished. We don’t lead with a new heater.

Explain your options: A repair, a same-size replacement, or a tankless. You hear the difference before any work starts.

Fix it in one trip: Vans carry the common elements, thermostats, and the heaters we install most, so a lot of this finishes on the first visit.

Test the hot water: We fire the unit, check the pan and the connections, and run a tap before we pack up.

Leave it clean: The closet or the garage floor gets wiped down before we head out.

Underwood service van driving at sunset with motion blur

The Underwood Water Heater Standard

Both. A failed element, thermostat, or gas valve is often the whole job. We’ll say so if a repair is the right fix, and we’ll say so if the tank is leaking and done.

We work out of four offices in McKinney, Bonham and Sherman and cover Collin, Grayson, Fannin, Hunt and Lamar counties, including Allen, Prosper, Denison, Greenville, and Paris.

Yes. Repair and replacement for wall-hung tankless units, plus a straight answer when a tank is still the better fit for the house.

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

The Plumber’s Club includes an annual water heater flush, priority scheduling, and 10% off Underwood service calls. Ask us which plan fits the house.

Why Underwood

Why Northeast Texas Calls Underwood for Water Heaters.

Smiling Underwood customer service representative wearing a headset at an office desk

01

We Communicate.

Nights, weekends, and holidays. A cold shower doesn’t wait until Monday.
Underwood service van with its phone number on the side, driving at dusk

02

Stocked Trucks, One Trip.

Elements, thermostats, and the heaters we install most ride on the van.
Split image of an Underwood technician working under a sink and another at a green septic riser beside a service van

03

Repair or Replace, Said Up Front.

If the tank is finished, we say that. If a part will do, we don’t sell you a new heater.
Underwood technician inspecting pipes in a crawlspace under a home

04

Seasoned Service Professionals

Licensed with the state board, TCEQ registered, and on water heaters across DFW and Northeast Texas for years.

What We Fix

Water Heater Repairs and Installs, Start to Finish

Underwood technician connecting a fitting on a wall-mounted tankless water heater

Financing Available

We offer flexible payment options for our services.

Signs It's Time to Call About the Water Heater

Water heater repairs and replacements 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

Water Heater Work, Start to Finish.

Water Heater Repair

No hot water, a leaking tank, or a unit that won’t stay lit. We find the failed part before we talk replacement.

Water Heater Replacement

When the tank is done, we swap it, including the pan, the connections, and the flue or vent.

Tankless Water Heater

Wall-hung tankless repair and installs when a tank no longer fits the house or the hot-water demand.

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 Hot Water Back?

Tell us tank or tankless, and what’s going on, and we’ll get a licensed tech out to you.

Or Skip the Form

Service Areas

Water Heater Service Across Northeast Texas and DFW.

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

Counties We Cover

Same-week water heater scheduling across Collin, Hunt, Grayson, Fannin, Lamar, and Cooke counties, and a truck when the hot water is already out. Bryan County, Oklahoma is septic maintenance only. We are not licensed to plumb there.
Not sure whether you’re in range? Give us a call. If we can’t get to you, we’ll point you to someone who can.