High Quality and Affordable Plumbing Services
We provide licensed, residential plumbing services that cover everything from urgent repairs to full system installations. Whether you’re fixing a leak, remodeling your kitchen, or upgrading your water heater, our team delivers clean, code-compliant work with no shortcuts.

Water Heaters
We install, replace, and repair both tank and tankless water heaters. Whether you’re upgrading to a high-efficiency system, dealing with no hot water, or performing routine maintenance, we’ll size and install your unit properly for your home’s needs. All work is code-compliant and includes full testing and safety checks.
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Drainage Service
From small leaks to whole house repiping, we handle all types of water and drain line issues. We repair burst or corroded pipes, detect hidden leaks, clean slow or clogged drains, and offer full sewer line repair or replacement. Trenchless options may be available depending on your property and pipe condition.
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Fixtures & Appliances
We install and repair a full range of plumbing fixtures and appliances, including toilets, faucets, sinks, bathtubs, garbage disposals, dishwashers, and ice maker lines. Whether you’re replacing old units or starting fresh, our installs are tight, clean, and done right the first time — with proper sealing, pressure testing, and drainage checks.
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Install & Remodeling
Plumbing for remodels requires careful planning, clean execution, and experience working alongside other trades. We provide plumbing support for kitchen, bathroom, laundry, and basement remodels — from rough-in and layout adjustments to final fixture installation. We also handle new construction and additions.
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Pumps & Filtration
We handle sump pumps, sewer ejector pumps, water softeners, and whole-home filtration systems — all installed for reliability, clean water, and safe drainage. Also available for emergency plumbing issues like burst pipes, backups, or flooding — with fast, priority response when needed.
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Bathroom Remodeler
At Principled Plumbing, we’re proud to be Oregon City’s friendly neighborhood remodelers—helping homeowners update bathrooms with honest service and skilled workmanship. From older homes near Singer Creek to newer builds across Clackamas County, we tailor every remodel to fit your space and goals.
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Your Expert Plumber for Home and Business
We provide a wide range of plumbing services for homes and businesses across Clackamas, Multnomah, Washington, Marion, and Yamhill Valley, Oregon.
Appliance Hook-up
Water supply drain and gas connections for dishwashers refrigerators washing machines and rangesBackflow Testing
Code-required inspection of check valves and assemblies that protect your drinking water from cross-contaminationBathroom Plumbing Installation
Planning a remodel or new bath? We handle Bathroom Plumbing Installation with care and attention to detail, giving you dependable performance, clear communication, and fair, upfront costs.Bathroom Remodeling
For a bathroom refresh in your area, our plumbers deliver top-quality remodeling done right—honest pricing, careful workmanship, and reliable timelines—so your home gains comfort, value, and a beautiful, leak-free space.
Bathroom Renovation
Upgrade your space with expert Bathroom Renovation—modern fixtures, smart plumbing design, and honest service from local pros who keep your project on time and on budget.Bathtub Replacement
We specialize in Bathtub Replacement across Oregon homes—honest plumbing, dependable service, and quality finishes that leave your bathroom refreshed and worry-free.Burst Pipe Repair
Local homeowners count on our licensed plumbers for reliable Burst Pipe Repair in your area—providing quick service, fair pricing, and lasting protection for your home, comfort, and water costs.Drain Cleaning
Slow drain or stubborn clog? We handle Drain Cleaning quickly and safely, restoring smooth flow and preventing backups with honest service you can rely on any time.Emergency Drain Unblocking
Got a sudden backup? Call us for Emergency Drain Unblocking and get fast, dependable service that clears your drains safely, prevents damage, and keeps your home running smoothly.Emergency Flood Response
Our local team provides trusted Emergency Flood Response to help Oregon homeowners stay safe, limit water damage, and restore comfort fast with honest plumbing service done right.Emergency Plumbing
Same-day response for burst pipes sewer backups gas leaks and any plumbing situation that cannot waitFaucet Installation
Local homeowners trust our honest plumbers for top-quality faucet installation, fair pricing, workmanship, and reliable service that gets it done right the first time, keeping kitchen and bathrooms running smoothly.
Frozen Pipe Repair
When winter hits hard, count on our team for Frozen Pipe Repair that protects your home or business, stops damage early, and gets your water running again fast.Garbage Disposal Repair
Jam clearing motor diagnosis leak repair and replacement for garbage disposal unitsGas Line Repair
Leak location corroded pipe replacement and pressure testing for residential gas supply linesGas Water Heater Installation
Gas Water Heater Installation you can trust—our licensed plumbers ensure safe setup, efficient performance, and reliable hot water with honest pricing and clean, expert work.Kitchen Plumbing Remodeling
Planning an upgrade? We provide Kitchen Plumbing Remodeling that improves flow, function, and efficiency, giving your kitchen lasting comfort and value with honest, skilled workmanship.Laundry Room Plumbing
Supply lines drains and hookups for washers dryers and utility sinks in new or relocated laundry roomsLeak Detection
Pressure testing and acoustic methods to pinpoint hidden leaks in walls slabs and crawlspaces without tearing things openLow Water Pressure Repair
Get your flow back fast with professional Low Water Pressure Repair—our skilled plumbers find the cause, fix it right, and restore steady water pressure with fair, transparent service.Master Bathroom Remodel
Transform your space with expert Master Bathroom Remodel plumbing—clean installs, reliable scheduling, and honest pricing from local pros who take pride in every detail.Pipe Repair
Dealing with a leak or burst line? We handle Pipe Repair fast and right the first time, restoring your plumbing system with fair pricing, reliable results, and friendly service.Pipe Replacement
We handle Pipe Replacement projects of any size—modern upgrades, leak prevention, and long-term reliability backed by skilled workmanship and honest service every step of the way.Plumbing for Bathroom Renovations
Our licensed team provides Plumbing for Bathroom Renovations with precise installation, reliable fixtures, and honest pricing to ensure your new space looks great and works flawlessly.Repiping
If your old pipes are causing low pressure or rusty water, we offer Repiping that renews your system, improves flow, and keeps your plumbing dependable for years to come.Sewer Camera Inspection
Real-time visual diagnostics of your main line to identify the exact location and cause of recurring drain problemsSewer Line Repair
We specialize in Sewer Line Repair throughout Oregon City—accurate inspections, clean workmanship, and trusted results that keep your sewer system working properly year-round.Shower Installation
Ready for a new shower? We provide Shower Installation that’s efficient, clean, and built to last, giving your bathroom lasting comfort and dependable plumbing done right.Sink Drain Unclogging
Our skilled plumbers handle Sink Drain Unclogging fast and clean, clearing buildup and restoring smooth flow with reliable results, honest pricing, and respect for your home.Sink Installation
Full sink mounting with supply lines shutoff valves drain assembly and faucet for kitchens bathrooms and utility roomsSump Pump Installation
Permanent groundwater removal systems for basements and crawlspaces that flood during rainy seasonTankless Water Heater Installation
Upgrade your system with expert Tankless Water Heater Installation for endless hot water, lower utility costs, and reliable performance installed safely by experienced local pros.Toilet Drain Unblocking
Dealing with a backed-up toilet? We offer Toilet Drain Unblocking that fixes the problem quickly, protects your plumbing, and delivers lasting results with fair, transparent service.Toilet Installation
Our skilled plumbers handle Toilet Installation with precision and care, ensuring a secure fit, clean finish, and reliable performance backed by honest pricing and quality materials.Toilet Repair
When your toilet stops working right, our team delivers quick, reliable Toilet Repair to restore function, prevent leaks, and save you from unexpected mess or wasted water.Tub to Shower Conversion
njoy a safer, more spacious shower with professional Tub to Shower Conversion—custom fit, clean workmanship, and upgrades that make every morning easier.Walk-In Shower Conversion
If climbing into a high tub is a hassle, our team makes Walk-In Shower Conversion simple with careful planning, quality materials, and plumbing that fits your life and your home.Water Filtration Installation
Whole-house and point-of-use filters connected to your supply line for cleaner tap waterWater Heater Installation
We handle Water Heater Installation from start to finish—safe connections, efficient performance, and honest service that keeps your home comfortable and your hot water dependable year-round.Water Heater Repair
Diagnosis and component replacement for tank and tankless units that stop producing hot waterWater Line Replacement
If your water line is leaking or outdated, we offer Water Line Replacement that fixes the issue fast, safeguards your home, and keeps your system running strong with clean, reliable work.Water Main Repair
Local homeowners trust our honest plumbers for top-quality water main repair with clear pricing, fast response, and lasting fixes that protect your home’s water supply and restore peace of mind.
Water Softener Installation
Ion-exchange systems that remove calcium and magnesium to stop scale buildup on fixtures and appliances
Schedule Your Service
With a Local Expert
Need a plumber? We’ll show up fast, fix it right, and leave your space clean. Book your service today.
Frequently Asked Questions
What types of plumbing services do you offer?
We provide a full range of residential plumbing services, including water heater installation and repair, leak and drain fixes, fixture and appliance plumbing, remodel support, sump pump and filtration installs, and emergency plumbing.
Can I book multiple services in one visit?
Yes. If you need help with several plumbing issues—like a leaking faucet and a slow drain—we’ll handle them in a single visit whenever possible. Just let us know when you book so we can come prepared.
Do you work with tankless water heaters and modern plumbing systems?
Absolutely. We install and repair both tank and tankless water heaters, as well as new plumbing technologies including water-saving fixtures and smart filtration systems.
Can you help with plumbing for a remodel or addition?
Yes. We handle rough-ins, fixture installations, and layout changes for kitchens, bathrooms, basements, and new home additions — working with homeowners or directly with contractors.





