With over 20 years of industry experience Allied Mechanical & Plumbing LLC is dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. Let us help you with - new construction/remodel, plumbing consulting design and layout, gas piping, bath and shower upgrades, water heater and fixture replacement, hydronic heating - contact us today for hourly rates and bids.
"The most professional experience ever!!!"
Theresa C on May 2025
With over 20 years of industry experience Allied Mechanical & Plumbing LLC is dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. Let us help you with - new construction/remodel, plumbing consulting design and layout, gas piping, bath and shower upgrades, water heater and fixture replacement, hydronic heating - contact us today for hourly rates and bids.
"The most professional experience ever!!!"
Theresa C on May 2025
T&T PLUMBING LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business
T&T PLUMBING LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business
John's Waterproofing Co. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our businesss.
"John’s was quick to respond and were able to get us on the schedule quickly. They communicated effectively and did quality work. I will work with John’s again."
Matt H on October 2022
John's Waterproofing Co. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our businesss.
"John’s was quick to respond and were able to get us on the schedule quickly. They communicated effectively and did quality work. I will work with John’s again."
Matt H on October 2022
Mr. Rooter of Salem is proud to be a locally owned and operated business that has been serving the community since 2006! With years of experience and unmatched expertise, you can count on our plumbers to be timely, tidy, and when the job is done, that you will be 100% satisfied with the work. Since opening our doors we have built our business on providing customers with the highest quality products and service, at a fair price. You will be provided an upfront price before the work is started and we never have an overtime charge. Let us show you the Mr. Rooter difference, get in touch today!
"Fast and efficient "
Tiffany G on June 2025
Mr. Rooter of Salem is proud to be a locally owned and operated business that has been serving the community since 2006! With years of experience and unmatched expertise, you can count on our plumbers to be timely, tidy, and when the job is done, that you will be 100% satisfied with the work. Since opening our doors we have built our business on providing customers with the highest quality products and service, at a fair price. You will be provided an upfront price before the work is started and we never have an overtime charge. Let us show you the Mr. Rooter difference, get in touch today!
"Fast and efficient "
Tiffany G on June 2025
OREGON ENVIRONMENTAL SERVICES LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
OREGON ENVIRONMENTAL SERVICES LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
We are a locally owned and operated company that values honesty and integrity and treats your home, sewer and project as if it were our own. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Quick work."
Michael E on May 2025
We are a locally owned and operated company that values honesty and integrity and treats your home, sewer and project as if it were our own. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Quick work."
Michael E on May 2025
Henco Plumbing Services proudly serves its customers with care, integrity and attention to the details that matter most to you. This is one of the many things that set us apart from the rest. Give us a call today! WA Plumbing: HENCOP*7829O ∣ WA GC: HENCOP*782RO ∣ OR Plumbing: PD2795 ∣ OR GC: C1761 ∣ OR CCB: 240516
"Angel, Trevor, Joe, and Skylar were fantastic on-site craftsman. Many thanks to Lupe and Dakota in the office as well. I'd hire Henco/Sunset to do any electrical, plumbing or HVAC work needed. Couldn't have been easier. "
Cameron F on June 2025
Henco Plumbing Services proudly serves its customers with care, integrity and attention to the details that matter most to you. This is one of the many things that set us apart from the rest. Give us a call today! WA Plumbing: HENCOP*7829O ∣ WA GC: HENCOP*782RO ∣ OR Plumbing: PD2795 ∣ OR GC: C1761 ∣ OR CCB: 240516
"Angel, Trevor, Joe, and Skylar were fantastic on-site craftsman. Many thanks to Lupe and Dakota in the office as well. I'd hire Henco/Sunset to do any electrical, plumbing or HVAC work needed. Couldn't have been easier. "
Cameron F on June 2025
Our plumbing experts assist local residents and businesses with a variety of plumbing repairs, installations, and upgrades. With 25 years of experience in the industry and over 40 years of combined experience with sewer line excavation, replacements and repairs, you can trust our team at Legacy Plumbing and Excavation! We pride ourselves on being professional, prompt, and performing exceptional repairs and replacements every time.
"Great work"
Zak S on May 2025
Our plumbing experts assist local residents and businesses with a variety of plumbing repairs, installations, and upgrades. With 25 years of experience in the industry and over 40 years of combined experience with sewer line excavation, replacements and repairs, you can trust our team at Legacy Plumbing and Excavation! We pride ourselves on being professional, prompt, and performing exceptional repairs and replacements every time.
"Great work"
Zak S on May 2025
At Elkhorn Plumbing LLC we are dedicated to providing our clients with the very best in service, installation, drain cleaning and repair for all phases of their plumbing needs. We specialize in a variety of residential, multi-family and small commercial services and we take pride in the attention to detail put into each of the projects we are involved in. We are known for our quality work and the integrity of our business. While the shop is new, each of our Plumbers have 15+ years of experience. We look forward to building long-term relationships with our clients and guarantee their satisfaction.
"Prompt, courteous, and friendly to my pets"
Bill P on May 2025
At Elkhorn Plumbing LLC we are dedicated to providing our clients with the very best in service, installation, drain cleaning and repair for all phases of their plumbing needs. We specialize in a variety of residential, multi-family and small commercial services and we take pride in the attention to detail put into each of the projects we are involved in. We are known for our quality work and the integrity of our business. While the shop is new, each of our Plumbers have 15+ years of experience. We look forward to building long-term relationships with our clients and guarantee their satisfaction.
"Prompt, courteous, and friendly to my pets"
Bill P on May 2025
Evergreen Plumbing and Mechanical provides full service whenever our crew comes out to a customer’s home. Being family-owned and operated for the last 20 years, dependable and prompt service our customers can count on is the Evergreen way.
"Camerron was awesome and did great work. Everyone we worked with was friendly and helpful"
Alex S on March 2025
Evergreen Plumbing and Mechanical provides full service whenever our crew comes out to a customer’s home. Being family-owned and operated for the last 20 years, dependable and prompt service our customers can count on is the Evergreen way.
"Camerron was awesome and did great work. Everyone we worked with was friendly and helpful"
Alex S on March 2025
You'll need an expansion tank if your home has a closed water system, which is standard in newer homes or those with backflow preventers or pressure regulators. Expanding hot water has nowhere to go in closed systems, creating potentially damaging pressure. The expansion tank provides space for this expanded water, protecting your plumbing system and water heater from premature failure. Many local building codes now require expansion tanks, and some water heater warranties may be voided without one.
For a standard 50-gallon water heater, a two-gallon expansion tank is sufficient. This sizing assumes normal household water pressure between 40 and 60 psi. If your home has higher water pressure (60 to 80 psi), consider upgrading to a slightly larger tank for added protection. The expansion tank's purpose is to accommodate the increased volume that occurs when cold water heats up, which is proportional to your water heater's capacity.
Watch for signs like dripping water around the tank, fluctuating water pressure throughout your home, or unusual noises in your plumbing system. A properly functioning expansion tank should feel light when tapped on the bottom—if it feels heavy or waterlogged, the internal bladder has likely failed. Other indicators include frequent triggering of your temperature and pressure relief valve, visible corrosion on the tank, or unexplained increases in your water bill, suggesting hidden leaks.
Most expansion tanks have a service life of five to 10 years, though some may last up to 12 years or more with proper maintenance. Factors affecting lifespan include water quality, system pressure, installation quality, and tank construction. Hard water areas often see shorter lifespans due to mineral buildup. Regular maintenance checks can help identify potential issues before complete failure. When your water heater is due for replacement, it's wise to replace the expansion tank simultaneously, even if it hasn't failed yet.
A 30-gallon water heater needs an expansion tank if your home has a closed plumbing system. The need for an expansion tank is determined by your plumbing system type rather than water heater size. Even smaller water heaters create thermal expansion when heating water. If your home has a backflow preventer, pressure regulator, or check valve on the main water line, you have a closed system that requires an expansion tank. Check your local plumbing codes, as many jurisdictions now mandate expansion tanks regardless of water heater size.