Here at National Plumbing , we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!
"It was easy to reach a live person on my first call. I was able to schedule the service on my first call. The plumber arrived at the time he was scheduled. He identified and fixed a very difficult issue with my older water heater. I have had them on two other jobs, and I find that they listen to my description of the issue and are always very kind and polite. They were very careful to wipe their shoes before entering the home and I appreciated that because I have light carpets."
Angela R on January 2023
Here at National Plumbing , we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!
"It was easy to reach a live person on my first call. I was able to schedule the service on my first call. The plumber arrived at the time he was scheduled. He identified and fixed a very difficult issue with my older water heater. I have had them on two other jobs, and I find that they listen to my description of the issue and are always very kind and polite. They were very careful to wipe their shoes before entering the home and I appreciated that because I have light carpets."
Angela R on January 2023
Nelson Plumbing is locally owned & operated by a fourth generation plumber. We are licensed and insured, and each project is always completed with the highest standard. We are specialized in residential work and commercial service. With 25+ years experience, you can trust us to take care of your plumbing needs with the attention to detail and respect for your property that we would give our own. We strive to deliver a personalized experience for each and every client. Call today to set an appointment! We look forward to working with you.
"Super Happy with this Co.. They swung by the same day on their way home from work to evaluate the situation & gave me a quote. Followed through efficiently & went above & beyond with the clean up & replacement of my water heater. Very polite & respectful, just great guys. I have finally found a company who does great work & they don’t take advantage of you financially. I highly recommend Nelson Plumbing."
Alicia S on January 2023
Nelson Plumbing is locally owned & operated by a fourth generation plumber. We are licensed and insured, and each project is always completed with the highest standard. We are specialized in residential work and commercial service. With 25+ years experience, you can trust us to take care of your plumbing needs with the attention to detail and respect for your property that we would give our own. We strive to deliver a personalized experience for each and every client. Call today to set an appointment! We look forward to working with you.
"Super Happy with this Co.. They swung by the same day on their way home from work to evaluate the situation & gave me a quote. Followed through efficiently & went above & beyond with the clean up & replacement of my water heater. Very polite & respectful, just great guys. I have finally found a company who does great work & they don’t take advantage of you financially. I highly recommend Nelson Plumbing."
Alicia S on January 2023
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"Very fair price! Was greatly flexible with payment for an unexpected event. Highly recommend and would hire again when needed! We had an accident that broke our main line. They were nice enough to come out same day to cap it off for us to turn our water back on for the whole house and return back another day to complete the repairs. Was able get a quote by sending pictures of the damage and talking over the phone. No surprise extra cost. "
Dara R on July 2025
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"Very fair price! Was greatly flexible with payment for an unexpected event. Highly recommend and would hire again when needed! We had an accident that broke our main line. They were nice enough to come out same day to cap it off for us to turn our water back on for the whole house and return back another day to complete the repairs. Was able get a quote by sending pictures of the damage and talking over the phone. No surprise extra cost. "
Dara R on July 2025
Our Company is based off 14 years of HVAC, plumbing, maintenance, repair, and installation on all equipment. We offer unique services in residential, commercial, and Industrial and ensure all of our services exceed all expectations. We strive to be the most qualified HVAC/Plumbing company and continue to enhance our knowledge ensuring all of our customers receive the best experience when hiring us. The guarantee we offer is for us to provide competitive services, fair pricing, and the best customer services.
"Service was great and he was very knowledgeable about how the water heater works. Would recommend this company to anyone. 10/10!"
Michael Z on April 2025
Our Company is based off 14 years of HVAC, plumbing, maintenance, repair, and installation on all equipment. We offer unique services in residential, commercial, and Industrial and ensure all of our services exceed all expectations. We strive to be the most qualified HVAC/Plumbing company and continue to enhance our knowledge ensuring all of our customers receive the best experience when hiring us. The guarantee we offer is for us to provide competitive services, fair pricing, and the best customer services.
"Service was great and he was very knowledgeable about how the water heater works. Would recommend this company to anyone. 10/10!"
Michael Z on April 2025
Veteran-Owned & Operated | Excellence in Plumbing & HVAC Since 2016 We are a proudly veteran-owned and operated business, founded in 2016, with a commitment to integrity, discipline, and excellence. With 1,475 five-star reviews, we have built a reputation for exceptional service in Signal Hill, Clovis, and Murrieta. Our founders served in the Navy and Army, and many of our dedicated team members are veterans. We bring the same level of discipline and commitment to our work as we did in service to our country. We specialize in plumbing and HVAC maintenance, repair, and installation, ensuring reliable solutions for your home or business. It is our honor to serve your community with the highest standards of quality and professionalism. Let us handle your plumbing and HVAC needs—excellence is our mission!
"NA"
kenneth M on January 2025
Veteran-Owned & Operated | Excellence in Plumbing & HVAC Since 2016 We are a proudly veteran-owned and operated business, founded in 2016, with a commitment to integrity, discipline, and excellence. With 1,475 five-star reviews, we have built a reputation for exceptional service in Signal Hill, Clovis, and Murrieta. Our founders served in the Navy and Army, and many of our dedicated team members are veterans. We bring the same level of discipline and commitment to our work as we did in service to our country. We specialize in plumbing and HVAC maintenance, repair, and installation, ensuring reliable solutions for your home or business. It is our honor to serve your community with the highest standards of quality and professionalism. Let us handle your plumbing and HVAC needs—excellence is our mission!
"NA"
kenneth M on January 2025
Josue Rodriguez is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!
"Was reasonably priced, had great communications and did a great job with the installation. "
Margaret G on June 2025
Josue Rodriguez is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!
"Was reasonably priced, had great communications and did a great job with the installation. "
Margaret G on June 2025
Lee's Air, Plumbing, & Heating is a specialized provider offering comprehensive services encompassing service, repair, and replacement. Our transparent pricing structure for select services is as follows: Residential Plumbing Diagnostics & Estimates: $49 (with a waiver of the $49 fee upon approval of repairs/estimates) Residential HVAC Diagnostics: $99 Free Estimates for Replacement HVAC Systems Additionally, Lee's Air extends its services to commercial enterprises, with fees subject to variation based on location. We are proud partners of PG&E's Energy Upgrade California Program and the Residential Energy Efficiency Loan (REEL) program. As part of these collaborations, we provide free Energy Audits with potential rebates of up to $2,750 for homeowners undertaking energy-efficient upgrades. For further information, please contact our customer service team today.
"The whole process was explained thoroughly, what was needed and what will be changed, and offered other components to complement the replacement of our gas water heater. Financing was also offered which was one of the reasons for going with this company."
Edgar L on April 2025
Lee's Air, Plumbing, & Heating is a specialized provider offering comprehensive services encompassing service, repair, and replacement. Our transparent pricing structure for select services is as follows: Residential Plumbing Diagnostics & Estimates: $49 (with a waiver of the $49 fee upon approval of repairs/estimates) Residential HVAC Diagnostics: $99 Free Estimates for Replacement HVAC Systems Additionally, Lee's Air extends its services to commercial enterprises, with fees subject to variation based on location. We are proud partners of PG&E's Energy Upgrade California Program and the Residential Energy Efficiency Loan (REEL) program. As part of these collaborations, we provide free Energy Audits with potential rebates of up to $2,750 for homeowners undertaking energy-efficient upgrades. For further information, please contact our customer service team today.
"The whole process was explained thoroughly, what was needed and what will be changed, and offered other components to complement the replacement of our gas water heater. Financing was also offered which was one of the reasons for going with this company."
Edgar L on April 2025
At Empire Plumbing, Inc. we pride ourselves on our professionalism and our clear and concise communication. We specialize in all of your plumbing needs. Give us a call today for an estimate! -Se Habla Espanol
"Dominic was super efficient, arrived on time, and was professional! We are keeping their number handy for the future ."
Chris M on December 2024
At Empire Plumbing, Inc. we pride ourselves on our professionalism and our clear and concise communication. We specialize in all of your plumbing needs. Give us a call today for an estimate! -Se Habla Espanol
"Dominic was super efficient, arrived on time, and was professional! We are keeping their number handy for the future ."
Chris M on December 2024
Here at Valkier Plumbing we strive to give our customers the very best. We hold ourselves to the highest of standards when it comes to plumbing and dealing with our customers. Fair, honest, and professional is what you will get from us no matter how small or big the job is. We specialize in new construction, remodel, and service plumbing. Give us a call to chat about any projects you might have. We love to talk plumbing. We live it! Valkier Plumbing
Here at Valkier Plumbing we strive to give our customers the very best. We hold ourselves to the highest of standards when it comes to plumbing and dealing with our customers. Fair, honest, and professional is what you will get from us no matter how small or big the job is. We specialize in new construction, remodel, and service plumbing. Give us a call to chat about any projects you might have. We love to talk plumbing. We live it! Valkier Plumbing
Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!
"Still getting estimates."
Lucy H on June 2025
Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!
"Still getting estimates."
Lucy H on June 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.