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.
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Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 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, 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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