Plumbing Elevated. Service Perfected.
Tankless Water Heater Installation & Repair in Lake Oswego, OR
Expert Tankless Water Heater Installation for Lake Oswego Homes
Hot water should never run out, especially when your schedule doesn’t. At Alchemy Plumbing, we help Lake Oswego homeowners upgrade to high-efficiency tankless water heaters that deliver hot water on demand, without the bulky tank or standby energy waste. Whether you need tankless water heater repair on an existing unit or you’re switching systems entirely, we handle both with the same care and technical precision.
Our licensed tradespeople handle everything from gas line sizing and venting to permits, wall-mounting, and system calibration. We work with trusted brands like Navien, Rinnai, and Noritz, and every install meets local code, energy standards, and your family’s real-world water needs.
Ready for a better hot water experience? We’ll size it right, install it clean, and stand behind the work.
Our Services
- Bathtub Installation
- Combi Boiler Services
- Drain Cleaning
- Drain Pipe Installation
- Drain Pipe Maintenance
- Drain Pipe Repair
- Emergency Plumber
- Faucet Repair & Installation
- Garbage Disposal Installation
- Gas Line Installation
- Gas Line Repair
- Home Repiping
- Hydro Jetting
- Main Water Line Repair
- Main Water Line Replacement
- Plumbing Inspections
- Plumbing Maintenance
- Plumbing Repair
- Rooter
- Sewer Line Inspection
- Shower Installation
- Shower Valve Replacement
- Sink Installation
- Slab Leak Deletection & Repair
- Sump Pump Installation & Replacement
- Sump Pump Repair
- Tankless Water Heater Installation
- Toilet Repair & Installation
- Trenchless Sewer Line Replacement
- Water Filtration Installation
- Water Heater Repair
- Water Heater Replacement & Installation
- Water Leak Detection & Repair
- Water Softener Installation
Contact Us
What Your Neighbors Are Saying About Us
10/10 Recommended
From start to finish, Alchemy was a great team to work with. They were friendly, personable, and had great follow-up & communication.
Natalie S.
Happy Customer
From start to finish, Alchemy was a great team to work with. They were friendly, personable, and had great follow-up & communication.
Gina P,
Will Call Again
Alchemy Plumbing absolutely exceeded all of my expectations.
Ashley S.
Great Experience
I’d highly recommend Alchemy Plumbing — 100%. If I need work done in the future, they’ll be my first call.
Tami Z.
Friendly & Professional
Alchemy Plumbing offered us a free 65-point inspection, which Brandon and Justin handled with exceptional professionalism.
Cheryl L.
Will Call Again
I highly recommend Alchemy Plumbing. They are absolute professionals from when I called and made the appointment to the end of the job.
Bragdon S.
5 Stars
They came out quickly when our water heater went out and had it back up and running quickly.
Eliot T.
Cold Showers? Inconsistent Heat? Let’s Fix That Fast
Cold showers and inconsistent hot water usually mean your tankless system needs attention, not replacement. Our technicians diagnose the issue on the spot, whether it’s a faulty flow sensor, mineral buildup, or an ignition problem, and most tankless water heater repair calls are resolved in a single visit. If your unit is old enough that repair isn’t the smart move, we’ll walk you through installation or a tank-to-tankless conversion instead, so either way you get a straight answer about what your system actually needs, not an upsell.Our tankless water heater services include:
- New system installation (gas or electric)
- System upgrades and tank-to-tankless conversions
- Flow rate assessment and sizing
- Gas line and venting modifications
- Annual maintenance and descaling
- Diagnostics and part replacements
Don’t let hot water problems linger. We’ll restore comfort and efficiency in a single visit whenever possible, and if you’re also considering a water heater installation, we can help with that too.
Choose Us for Reliable Tankless Water Heater Service in Lake Oswego
A tankless water heater only performs as well as it’s installed—and that’s where we shine. Alchemy Plumbing brings elite precision and local experience to every job. From Mountain Park to Hallinan, we’ve installed units in homes big and small, always tuned to each household’s unique layout and usage.
Here’s why homeowners trust us:
- Oregon-licensed, bonded, and insured tradespeople
- Transparent quotes with sizing recommendations
- Same-day installs and fast service windows
- Honest brand recommendations with no upselling
We do it once, and we do it right. No callbacks. No missed details. Want to know what it costs? Our guide on tankless water heater installation cost explains pricing factors and what you can expect to pay.
End-to-End Tankless Water Heater Support You Can Count On
Whether you’re going tankless for the first time or replacing an aging unit, we make the process simple. We walk through your current setup, water use habits, and energy goals to size and place your system for maximum efficiency and comfort.
What to expect from our install process:
- Load calculation and sizing
- Code-compliant gas line and vent installation
- Secure wall-mounting with seismic strapping (as needed)
- Full system test for temperature, pressure, and flow
- Clean-up and walk-through with maintenance tips
If repairs are what you need, we diagnose the issue clearly and offer direct solutions—backed by experience, parts on hand, and real guarantees.
Experienced Hot Water Installation Near Me
Tankless systems are compact, efficient, and built to last, but only if installed by a crew that knows their stuff. That’s why Lake Oswego homeowners turn to Alchemy Plumbing. We’ve made our name by delivering high-end results with hometown reliability, and if something seems off with your unit, it helps to know the common tankless water heater problems to watch for before they turn into bigger repairs.
We don’t cut corners. We don’t disappear after the job. We show up sharp, solve your problem, and make sure you’ve got hot water flowing the way it should—fast, steady, and safe.
Let’s get your hot water where it needs to be. Call us now to schedule an estimate or same-day repair.
Frequently Asked Questions
How long do tankless water heaters last?
With proper maintenance, most tankless systems last 15 to 20 years, often outlasting traditional tank heaters. Regular repair and descaling go a long way toward hitting that upper range, so staying on top of small issues now can save you from a full installation sooner than expected.
Can I switch from a tank to a tankless water heater?
Yes, tankless water heater installation and conversions are something we handle regularly. We’ll assess your home’s gas line, water demand, and venting options to recommend the right unit for your household.
Do tankless water heaters really save money?
Yes. They only heat water when needed, which cuts down on standby energy loss. That adds up over time, especially for smaller households, and a properly sized installation makes the biggest difference in how much you actually save.
What brands do you install and service?
We handle tankless water heater installation and repair for all major brands, including Navien, Rinnai, Noritz, Bosch, and Takagi.
Do you offer maintenance plans for tankless systems?
We do. Annual descaling and service help avoid unexpected tankless water heater repair calls, keep your unit running efficiently, and protect the manufacturer’s warranty. Ask us about setting up a maintenance schedule.
