
As winter approaches, the cold can put significant strain on your plumbing system. A frozen pipe may seem like a minor problem at first, but
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Cold showers and unpredictable hot water are more than an inconvenience, they’re usually a sign your water heater needs attention before a small issue turns into a total breakdown. MT Dunn Plumbing provides fast, dependable water heater repair for Hillsboro homes, diagnosing everything from pilot light failures and faulty heating elements to leaking tanks and tripped pressure valves. Our technicians arrive with the tools and parts needed to get most repairs done in a single visit, restoring reliable hot water without the cost of a full replacement whenever repair is the smarter choice.
Our highly experienced plumbing professionals will contact you for a free estimate and consultation.








Homeowners and businesses throughout Hillsboro choose MT Dunn Plumbing for reliable, professional plumbing services. Our customers appreciate our fast response times, clear communication, and high-quality workmanship. Whether you need a small plumbing repair, drain service, water heater repair, or a complete plumbing system replacement, our experienced team is committed to delivering dependable solutions and lasting results.
EXCELLENT Based on 95 reviews Posted on Google RubenTrustindex verifies that the original source of the review is Google. Late Sunday night we had an emergency leak, where we were forced to shut off water to entire house. I reach out MT Dunn plumbing and in a short notice and within 35 mins Irich was able to come over and fixed our leak. Truly appreciate the quick response especially being late Sunday night around 9-10pm!!!Posted on Google Matt CorradoTrustindex verifies that the original source of the review is Google. We inadvertently discovered our kitchen and washing machine drains were disconnected and dumping water underneath the house, in the crawlspace. We may never know why or for how long but Irich responded to my call personally and set a date within a single business day knowing we'd couldn't use the kitchen until it was fixed. He was here on time and had it repaired in a half day. Proper invoicing and estimates based on labor and parts always makes me happy. So glad to have a plumber now. I won't go anywhere else.Posted on Google Nick A.Trustindex verifies that the original source of the review is Google. I have used MT Dunn many times, mostly smaller projects. Usually available within 24-48 hours. Always professional and courteous. Wouldn’t hesitate to use them again!Posted on Google MTrustindex verifies that the original source of the review is Google. Excellent service start to finish. Arrived on time, responded quickly to request. Very friendly and professional. Everything handled with care and expertise. Shower head repair. Hillsboro Area.Posted on Google Zari MootzTrustindex verifies that the original source of the review is Google. This is the 3rd time we've used M T Dunn Plumbing, and the 3rd time we've have a 5-star experience. I would recommend them to everyone!Posted on Google Rie JacobsTrustindex verifies that the original source of the review is Google. Irich is very easy to work with and always shows up on time. He’s honest, professional, and very efficient. His work is fast but never rushed. He does things the right way and never cuts corners. Over the past three years, he has helped us three times: installing a water heater, replacing some toilet parts, and installing a new toilet. Every job was done quickly and professionally. He’s also very respectful of our home and keeps things clean while working. On top of that, he’s a genuinely kind person—even great with our dog 🐶 His pricing is fair and he never overcharges. It’s hard to find someone this trustworthy. I highly recommend him. Thank you Irich!Posted on Google Brian SecrestTrustindex verifies that the original source of the review is Google. I've had MT Dunn plumbing handle a couple of plumbing issues we've had over the last few years. Our most recent visit was due to a leaking valve going to our guest bathroom toilet. It was stripped and Irich was able to fix it in short order. Friendly, transparent, punctual, and knowledgeable. We highly recommend Dunn plumbing and Mikes son Irich.Posted on Google Cooper HowardTrustindex verifies that the original source of the review is Google. This is the second time I’ve used M T Dunn Plumbing and both experiences have been great. I recently discovered I had a leaky pipe underneath my cement driveway. M T Dunn came out and assessed the situation and gave me multiple ways get it fixed with varying costs. I decided what I wanted to do and they came out a few days later and took care of it. They cut a hole in the cement, found the leak, fixed it and patched the driveway in a single day which will end up saving me a ton of money. They’re very fair and have gotten things done quickly and easily both times I’ve needed them.Posted on Google philip salvadorTrustindex verifies that the original source of the review is Google. Very upfront on pricing, finished the work as expected.Posted on Google Daniel CruzTrustindex verifies that the original source of the review is Google. Irich is great and excellent work and did same day service..I would highly recommend mt plumbing for anyone
A water heater problem calls for a technician who can diagnose it correctly the first time.
Same-Day Repair Availability
Most repair calls are scheduled and completed within the same day.
Stocked Service Vehicles
Common parts carried on-site, reducing return visits and wait times.
All Brands and Types Serviced
Experience with gas, electric, tankless, and hybrid heat pump units alike.
Flat-Rate Repair Pricing
Clear costs quoted before work begins, with no hidden hourly surprises.
Licensed and Insured Technicians
Fully qualified professionals who follow proper safety and code standards.
Safety-First Diagnostics
Careful inspection for gas leaks, electrical hazards, or carbon monoxide risks.
Manufacturer Warranty Awareness
Repairs performed in ways that protect existing manufacturer warranties.
Clear Repair-vs-Replace Guidance
We recommend cost-effective solutions based on your plumbing condition, and long-term performance needs.
Clean, Respectful Service
Our technicians protect your property, maintain cleanliness, and respect every space throughout every service visit.
Consistent Local Availability
A trusted name Hillsboro homeowners call for recurring hot water issues.
Together, these qualities make MT Dunn Plumbing a reliable option when hot water problems need a fast, accurate fix.
Every repair call follows a structured process built to identify the true cause of the problem, not just the symptom.
Technicians start by asking about the specific issue, whether it’s no hot water, inconsistent temperature, unusual noises, or visible leaking, along with the unit’s age and repair history.
Before touching any components, technicians shut off power or gas supply to the unit and visually inspect for corrosion, leaking, or exposed wiring that could pose a hazard.
Using a multimeter and manufacturer specifications, technicians test thermostat accuracy and control settings to rule out simple calibration issues.
For gas units, technicians inspect the pilot light, thermocouple, and burner assembly. For electric units, they test heating elements for continuity and proper resistance.
The temperature and pressure relief valve is tested to confirm it’s releasing pressure correctly, since a faulty valve can cause both performance issues and safety risks.
Technicians check tank seams, fittings, and the drain valve for signs of leaking, rust, or sediment-related damage that may point toward tank failure.
If sediment accumulation is affecting performance, technicians flush the tank to remove buildup that causes noise, reduced efficiency, and premature heating element wear.
Once repairs are made, technicians run the unit through a full heating cycle, measuring output temperature and flow to confirm the fix resolved the original issue.
Technicians walk homeowners through what was found, what was repaired, and whether any additional maintenance or future replacement planning should be considered.
Before leaving, technicians confirm all connections are secure, the area is clean, and the unit is operating safely under normal conditions.
Most water heater repairs in Hillsboro are completed within 60 to 120 minutes, depending on the issue and unit type.
Certain warning signs mean it’s time to have your water heater looked at before the problem worsens.
Our technicians are equipped to resolve a wide range of gas, electric, and tankless water heater issues, including:
From what we’ve seen, the answer is almost always no, and continuing to use it can turn a small problem into a much bigger one. At MT Dunn Plumbing, we’ve seen how ignoring even a minor leak leads Hillsboro homeowners into far more damage and expense than the original issue ever warranted.
A small drip or a bit of moisture around the base might seem easy to ignore, especially if the water heater still seems to be working fine otherwise. A homeowner might assume a minor leak can wait until it’s more convenient to deal with, but that moisture is often a sign of a bigger issue building inside the tank or its connections. That’s a significant risk, and time and again, it’s exactly what turns a simple repair into a full-blown flooding situation.
We’ve responded to calls where a leak that had been “just a little water” for weeks suddenly became a ruptured tank, causing water damage to flooring, drywall, and anything stored nearby. In almost every case, addressing the leak the moment it was noticed would have prevented the damage that followed.
The cost of addressing a leak early is minor compared to the potential cost of water damage restoration, flooring replacement, or mold remediation after a full tank failure. We think of it as stopping a small problem before it becomes an expensive one, you’re not just fixing a leak, you’re protecting everything around your water heater too.
Units stored in finished areas, in particular, deserve extra urgency. Water heaters in utility closets, attics, or upper-floor installations are common throughout Hillsboro homes, and a leak in these locations often causes damage to the areas below before anyone even notices.
A leak is never something to wait out. Our team treats every water heater leak as worth a same-day look, because the cost of catching it early is nothing compared to what happens if it’s ignored.
This is one of the most common questions homeowners ask, and the right answer depends on a few key factors.
Factor
Unit Age
Type of Issue
Repair Cost
Frequency of Issues
Energy Efficiency
Warranty Status
Water Quality Impact
Overall Condition
Repair Usually Makes Sense
Under 8 years old
Thermostat, element, or valve failure
Under 50% of replacement cost
First or occasional repair need
Unit still performs efficiently
Still under manufacturer warranty
Minimal sediment or scale damage
Tank and fittings show no corrosion
Replacement Usually Makes Sense
Over 10-12 years old
Tank leak or internal corrosion
Approaching or exceeding replacement cost
Repeated breakdowns within a short span
Noticeably higher energy bills over time
Warranty expired or nearing expiration
Heavy sediment damage to internal components
Visible rust, tank leaking, or structural wear
MT Dunn Plumbing always gives an honest recommendation based on these factors rather than pushing replacement unnecessarily.
Fast Response • Upfront Pricing • Guaranteed Work
MT Dunn Plumbing provides professional water heater repair in Hillsboro, OR, diagnosing and resolving gas, electric, and tankless water heater issues quickly and honestly.
A failed water heater during a busy morning or a leaking tank overnight calls for a fast, capable response.
Priority Emergency Scheduling
Urgent calls are moved to the front of the schedule.
After-Hours Availability
Emergency repair support outside standard business hours.
Rapid Leak Containment
Immediate steps taken to stop leaking and prevent water damage.
On-Call Parts Access
Technicians equipped with commonly needed emergency repair parts.
Gas Safety Protocols
Careful handling of any suspected gas leaks or ignition hazards.
Temporary Solutions When Needed
Short-term fixes to restore basic hot water access if full repair requires parts ordering.
Transparent Emergency Rates
Upfront pricing communicated before emergency work begins.
Follow-Up Verification
A return check-in to confirm the repair is holding as expected.
This readiness ensures Hillsboro homeowners aren’t left without hot water for longer than necessary.
Costs vary depending on the specific issue, but MT Dunn Plumbing always provides a flat-rate quote before any repair work begins.
It depends on the source of the leak. Fitting and valve leaks are often repairable, while tank leaks typically require replacement.
Most repairs are completed within 60 to 120 minutes, though tankless units or parts-ordering situations may take longer.
Rumbling or popping sounds usually indicate sediment buildup, which can often be resolved with a tank flush.
Yes, MT Dunn Plumbing services and repairs tankless, gas, electric, and hybrid heat pump water heaters.
Annual flushing and inspection is recommended to extend the unit’s lifespan and catch small issues early.
Shut off the water supply and power or gas to the unit if it’s safe to do so, then call MT Dunn Plumbing for emergency repair.
Don’t wait for a minor water heater issue to become a cold shower or a flooded utility closet. Call MT Dunn Plumbing to schedule water heater repair in Hillsboro and get accurate diagnostics, honest recommendations, and a technician who gets the job done right the first time.
Contact MT Dunn Plumbing today to book your repair appointment.
At M T Dunn Plumbing, our team is committed to delivering dependable plumbing solutions for residential and commercial properties throughout Sherwood and the surrounding communities.

As winter approaches, the cold can put significant strain on your plumbing system. A frozen pipe may seem like a minor problem at first, but

Clogged drains are one of those household problems that can quickly turn from a minor inconvenience into a major headache. Slow-draining sinks, backed-up showers, and

Most homeowners rarely think about their plumbing system until something goes wrong, a faucet starts dripping, a drain backs up, or the water heater suddenly
At M T Dunn Plumbing, we proudly serve Hillsboro, Beaverton, Portland, Tigard, Lake Oswego, Sherwood, Tualatin, West Linn, Wilsonville, Aloha, Newberg, Gaston, Banks, North Plains, and the surrounding Portland metro areas.
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