Precision Plumbing Services
Water Expansion
Tanks in Eugene, OR
Precision Plumbing offers dependable water expansion tank services in Eugene, Oregon.
Protect your plumbing system from excess pressure.
Emergency service, same day, within business hours · Mon–Fri 8am–4pm · CCB #234073
The short answer
It is a simple fact of physics: as a water heater does its job, the water inside will expand. In a closed-water system, this thermal expansion can drive up the pressure and put undue strain on the plumbing, from the fittings and valves to the relief devices.
Where there is no outlet for that expansion, it can result in leaks or early wear on components, not to mention complaints about a lack of hot water. An expansion tank is there to take up the slack, giving the extra volume somewhere to go so the system is not under as much duress and hot water continues to flow to your fixtures.
In What Way Does an Expansion Tank Help?
01
It is designed to accept the additional volume from heated water, which in turn curbs pressure spikes in the hot water system and is good for the pressure-relief valve.
02
For those with a closed-water setup, as is typical with whole-home tank systems or tank water heaters, it is a safeguard for the meters, valves, and other parts of the system.
03
Along with routine maintenance such as an annual inspection and periodic flushing, an expansion tank can extend the life of the heater and cut down on nuisance discharges from the relief valve and the risk of components failing before their time.
When You May Be in Need of One
01
There is visible corrosion at the fittings or valve, or the pressure-relief valve is making periodic discharges.
02
Water pressure seems to fluctuate once the heater has run, or you are seeing rapid cycling that leaves faucets and showers without a steady supply of hot water.
03
One has to call for water heater repair services in Eugene and the area with some regularity, or there are unexplained leaks in the vicinity of the storage tanks and repeated work on the relief valves.
A Note on Sizing and Installation
The right size and placement will be dictated by the type of water heater, the layout of the plumbing, and system pressure. You will find different styles and capacities on the market; diaphragm or bladder tanks are among the more common.
A licensed plumber will make a recommendation after looking at the incoming water supply, whether the unit is a conventional tank, tankless, or otherwise, and the size of the heater. For electric models, there are heating elements to consider, while gas units have venting and heat loss through storage to factor in.
Any installation service should include the proper valve placement and safety checks to see that building codes in the area are met.
Service and Replacement Considerations
Having work done on a water heater is the time to think about whether an expansion tank is in order. Homeowners opting for a new storage tank or an on-demand tankless system would be wise to add or check an expansion tank to shield the new equipment from future repairs.
The pros will talk about how hard water and the quality of the installation bear on the lifespan of the unit and when an older one has to go. While a tankless model can give you endless hot water with better efficiency, the supply pressure and plumbing still have to be set up correctly for it to be reliable.
Precision Plumbing — Related Services
For those in Lane County, Springfield, or Eugene who are having their water heater or plumbing seen to, Precision Plumbing offers a range of services pertinent to heater installations and expansion-tank decisions. We serve Eugene and the surrounding communities, including Coburg, Cottage Grove, Junction City, and Creswell, as well as ZIPs like 97402.
Water Heater Installation & Repair
We handle tank and tankless, gas and electric, offering fast replacement and full-service options.
Tankless Water Heaters
Installation and service for on-demand systems and tankless models that are sized to provide the whole home with hot water.
Plumbing Repairs
From vents to valves and fixtures, we ensure hot water is delivered to every faucet and address any pressure matters with the right valve selection.
Leak Detection
To identify hidden leaks that might be impacting your water supply and inform decisions on replacement or the need for an expansion tank.
Maintenance & Safety Checks
This covers annual maintenance and flushing to deal with sediment, as well as checking thermocouples on gas units and the pressure-relief valve. We can also advise on when it is time to replace based on expected lifespans.
What to Do Next
If you are planning a replacement or have noticed some activity from the relief valve, have a licensed plumber take a look at the system. Put questions to your plumber regarding the local codes, system pressure, and the overall layout so they can put forward the best option, be it a tankless or conventional system.
It is an efficient way to stave off no-hot-water calls and protect the heater to get the most out of an installation or service call.
For a detailed read on your needs, ask your plumber to assess the heater size and plumbing to determine if an expansion tank is called for.
Reviews
What customers say about Water Expansion Tanks
Real 5-star Google reviews from Precision Plumbing customers.
★★★★★
We have worked with Precision Plumbing on numerous projects over the years and they are our “go-to plumbers” for any/all projects . No issues. great communication and zero complaints from our clients. highly recommend.
Austin Kocian, Balanced Home Improvement LLC · via Google
★★★★★
I had an apparent water leak outside near my back door, the water meter indicated a 10 gal/hour leak. Montana with Precision Plumbing arrived within an hour of my call. He immediately noticed a hose bibb 20 feet away leaking a slow, steady stream. The water had run underground, under a concrete slab and surfaced 20 feet away. Tightened down the hose bibb handle and verified the leak had stopped by checking the water meter. Thanks Precision, I’ll definitely use you in the future.
John Sisk · via Google
★★★★★
Roy from Precision Plumbing came and fixed leaks and clogs in multiple places quickly and efficiently. He was professional and did a great job. I will always call Precision Plumbing for my plumbing needs.
Tamara Harris · via Google
★★★★★
Friendly, professional, did a great job re-lining our sewer so that we didn’t have to dig up the yard and remove our nice cedar tree. Cleaned up everything so you couldn’t tell anything happened. Enjoyed working with Precision.
Lee Boutell · via Google
★★★★★
Highly skilled crew used great care (avoiding a tree removal!) while completing a sewer line repair in a delicate spot with nearly no disruption to our daily activities. We will absolutely trust Precision Plumbing for any future plumbing needs.
Melissa Brennan · via Google
★★★★★
As an owner of a local restoration company, it’s great to have a reliable plumber to turn to when we encounter leaks and broken pipes. I’ve also used Precision Plumbing at my own home. Evan has built a really great team and you can rest assured that the plumbers that come arrive when they tell you they will, are reliable, and are fairly priced. Great working with y’all
Dan Atchison · via Google
★★★★★
We couldn’t be more pleased with the work done by Precision Plumbing! Our technician, Roy, was efficient, professional and friendly! We had a faucet replaced and he took extra care to check for leaks and said we could call if we had any concerns. Clogged drain was cleared as well! Very pleased with the cost of the service.
Al Villanueva · via Google
★★★★★
Joshua was very professional & knowledgeable! He explained things well and left the area clean & drain flowing well! Will definitely call them if I have plumbing issues again!
Theresa Scholz · via Google
★★★★★
Professional, efficient, and pricing fair! Josh was a pleasure to work with. Not only fixed my leak, but educated me on my house. Thank you!
Anastassia Cardona · via Google
Related Work
Or see photographs from our own job sites — trenches, crawl spaces, and the parts of the job nobody photographs for a brochure.
Trenchless Sewer Repair
Repair the sewer line beneath your home without turning the yard into a construction site.
Sewer Line Repair
Clear diagnosis and durable sewer line repairs for homes across Eugene, Springfield, and Lane County.
Water Line Replacement
Replace a failing water service line with a durable solution, from trenching to trenchless pipe boring.
Coverage Area
Serving Eugene, Springfield & Lane County
Eight communities, one crew, serving Lane County from Eugene, OR 97404. Every city on the map is somewhere we work weekly — pick one to see the housing stock we run into there.
On the edge of the map, or just outside it? Call and ask — coverage decisions here are made by a person, not a ZIP-code list: (541) 636-4725
On the Job
Real Work From Our Crew
Photos from our own job sites across Eugene, Springfield, and Lane County — not stock images.
The right plumber does make a difference.
Don't put off today what can become a bigger, more expensive issue down the road. Send us the short version and we will call you back.
Mon–Fri 8am–4pm · Emergency service, same day, within business hours · CCB #234073
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