
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
Always Available, Serving 24/7
Running out of hot water mid-shower or dealing with a unit that’s on its last leg is never convenient. MT Dunn Plumbing specializes in safe, code-compliant gas water heater installation for Hillsboro homes, handling everything from sizing and permitting to venting and final testing. Our licensed technicians work with all major brands and tank styles, ensuring your new system delivers consistent hot water while meeting every local safety standard. Whether you’re replacing an aging unit or installing one in new construction, we make the process straightforward from start to finish.
Our highly experienced plumbing professionals will contact you for a free estimate and consultation.








Homeowners and businesses in Hillsboro choose MT Dunn Plumbing because they know they can rely on experienced plumbers who show up on time and do quality work. The team takes the time to understand each customer’s needs, provide honest recommendations, and deliver plumbing solutions that last.
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
Installing a gas water heater involves more than hooking up a few pipes, gas lines, venting, and combustion safety all have to be done right.
Licensed Gas Fitters
Every installation is performed by technicians certified to work with gas lines and appliances.
Proper Sizing Guidance
We calculate the right tank or tankless capacity based on household size and hot water demand.
Code-Compliant Venting
Exhaust and combustion air systems are installed to meet current safety and building codes.
Permit Handling
We manage the required permits and inspections so you don't have to navigate city paperwork.
Quality Equipment Partners
We install trusted, energy-efficient brands backed by strong manufacturer warranties.
Old Unit Removal
Your existing water heater is safely disconnected, drained, and hauled away at no extra hassle.
Leak and Safety Testing
Every installation ends with a full pressure, leak, and combustion safety check.
Upfront Pricing
You'll know the full cost of equipment and labor before any work begins.
Same-Week Scheduling
Most installations can be scheduled within days, not weeks.
Long-Standing Local Presence
Hillsboro homeowners have trusted our team for dependable plumbing work for years.
Together, these standards are what make MT Dunn Plumbing a name Hillsboro homeowners keep coming back to.
Installation is a technical process that has to be done in the right order to be safe and effective. Here’s how we handle it:
A technician evaluates your household’s hot water usage, existing gas line capacity, and current unit’s condition before recommending the right replacement or new installation.
Based on family size, fixture count, and available space, we help you choose between standard tank, high-efficiency, or tankless gas water heaters.
Technicians inspect the existing gas supply line, shutoff valve, and venting path to determine if upgrades are needed before installation begins.
Before work starts, MT Dunn Plumbing secures any required city permits, ensuring the installation is fully documented and inspection-ready.
The existing water heater is safely powered down, disconnected from gas and water lines, and drained in preparation for removal.
The old unit is disconnected and hauled away, with the installation area cleared and prepped for the new system.
The new gas water heater is positioned according to code clearances, with attention to accessibility for future maintenance.
Technicians connect the gas supply, water lines, and exhaust venting, sealing every joint and connection to manufacturer specifications.
Once connected, the system undergoes a thorough leak test on gas lines and a combustion check to confirm safe, efficient operation.
The unit is powered on, brought to temperature, and checked for consistent hot water delivery before the job is considered complete.
Technicians explain how to operate and maintain the new system, including warranty details and recommended service intervals.
Most standard tank installations in Hillsboro are completed in 2 to 4 hours, while tankless conversions can take longer depending on venting and gas line modifications required.
Not every issue means a full replacement, but these signs usually point toward it:
A few key factors affect the installation process and should be discussed with your technician:
From what we’ve seen, the answer is a firm yes. At MT Dunn Plumbing, we’ve seen how professional gas water heater installation protects Hillsboro homeowners from safety hazards and costly mistakes that DIY or inexperienced installs can create.
A gas water heater isn’t just another appliance swap, it involves gas line connections, venting, and combustion safety, all of which have to be done exactly right. A general handyman or a rushed DIY job might get the unit running, but they simply can’t guarantee it’s been installed to code or that it’s safe for daily use. That’s a significant risk, and time and again, it’s exactly where the most dangerous surprises tend to hide.
We’ve walked into homes after a botched installation where new water heaters had improper venting, loose gas connections, or missing shut-off valves that needed immediate, expensive correction. In almost every case, a professional installation from the start would have caught these issues before they became safety hazards or code violations.
The cost of professional installation is minor compared to the potential cost of a gas leak, carbon monoxide exposure, or a failed inspection down the road. We think of it as buying peace of mind, you’re not just installing a water heater, you’re protecting your home’s safety, your family’s wellbeing, and your investment for years to come.
Hillsboro homes, in particular, deserve this extra care. Local permitting requirements, varying home ages, and different venting setups are common across the area, and these are precisely the conditions where an experienced local plumber makes the difference between a safe install and a costly redo.
At the end of the day, this is a job where experience matters more than price. Our team handles the permitting, the connections, and the safety checks so you don’t have to guess whether it was done right, you’ll simply know it was.
Whether you’re replacing an aging unit or installing one in a new home, MT Dunn Plumbing helps you select the right gas water heater based on your household size, hot water demand, and energy goals.
Gas Water Heater Type
Conventional Storage Tank
High-Efficiency Gas Water Heater
Power Vent Gas Water Heater
Direct Vent Gas Water Heater
Short Gas Water Heater
Tall Gas Water Heater
Natural Gas Water Heater
Propane Gas Water Heater
Best For
Most households
Energy-conscious homeowners
Homes without natural chimney venting
Tightly sealed homes
Homes with limited vertical space
Utility rooms with extra height
Homes with natural gas service
Rural homes without natural gas access
Key Benefits
Reliable hot water supply with lower upfront installation costs.
Reduces energy consumption while maintaining consistent hot water.
Uses a fan to safely vent exhaust through sidewalls or roofs.
Draws outside air for combustion, improving indoor air quality.
Fits under low ceilings or in compact utility areas.
Offers higher capacity while using less floor space.
Cost-effective operation with dependable performance.
Provides efficient heating using propane fuel.
No matter which type fits your home, our licensed plumbers ensure safe installation, code-compliant gas connections, and dependable performance for years to come.
Fast Response • Upfront Pricing • Guaranteed Work
MT Dunn Plumbing provides licensed, code-compliant gas water heater installation in Hillsboro, OR, helping homeowners and businesses get safe, efficient hot water systems installed correctly the first time.
A failed water heater can mean no hot water and potential water damage, so we treat these calls with urgency.
Priority Scheduling
Urgent replacement requests are moved to the front of the queue.
Stocked Inventory
We keep common tank sizes on hand to avoid delays waiting on special orders.
Rapid Removal and Install
Old units are removed and new ones installed in the same visit whenever possible.
Water Damage Mitigation
Technicians address any leaking or water damage from the failed unit during the visit.
Clear Cost Estimates
You’ll receive pricing before work begins, even under time pressure.
Safety-First Approach
Gas and combustion safety checks are never skipped, even on urgent jobs.
Most standard tank installations take two to four hours, while tankless installations may take longer depending on venting and gas line work.
Yes, most gas water heater replacements require a permit, which MT Dunn Plumbing handles as part of the installation process.
A tank water heater stores hot water for immediate use, while a tankless system heats water on demand, improving efficiency and saving space.
Sizing depends on household size, number of bathrooms, and peak hot water usage, which our technicians assess during your consultation.
Yes, old unit removal and disposal is included as part of every installation.
Most manufacturers recommend annual maintenance, including tank flushing or descaling depending on the unit type.
Yes, MT Dunn Plumbing provides gas water heater installation for both residential and commercial properties throughout Hillsboro.
Don’t wait for a cold shower to remind you it’s time for a new water heater. Contact MT Dunn Plumbing to schedule a professional gas water heater installation in Hillsboro, backed by licensed expertise and honest guidance from start to finish.
Contact MT Dunn Plumbing today to book your installation.
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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