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Water heater installers and replacers in Agoura Hills
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call us today.
"Outstanding Service and Professionalism! We recently had a major issue with our main water line and called HighEnd Plumbing Services based on a recommendation—and we couldn’t be happier with the results. From the first phone call to the final inspection, their team was responsive, transparent, and incredibly professional. They diagnosed the problem quickly and clearly explained the scope of work and pricing upfront. The repair was no small job, but they completed it efficiently and with great attention to detail. The crew was respectful of our property and cleaned up thoroughly after the work was done. The total cost was $6,450, and considering the quality of work, the speed of service, and the peace of mind it gave us, it was absolutely worth it. We feel confident that the repair was done right the first time. Highly recommend HighEnd Plumbing for anyone needing plumbing services—especially for major repairs like this one!"
Jenna B on May 2025
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call us today.
"Outstanding Service and Professionalism! We recently had a major issue with our main water line and called HighEnd Plumbing Services based on a recommendation—and we couldn’t be happier with the results. From the first phone call to the final inspection, their team was responsive, transparent, and incredibly professional. They diagnosed the problem quickly and clearly explained the scope of work and pricing upfront. The repair was no small job, but they completed it efficiently and with great attention to detail. The crew was respectful of our property and cleaned up thoroughly after the work was done. The total cost was $6,450, and considering the quality of work, the speed of service, and the peace of mind it gave us, it was absolutely worth it. We feel confident that the repair was done right the first time. Highly recommend HighEnd Plumbing for anyone needing plumbing services—especially for major repairs like this one!"
Jenna B on May 2025
At West Coast Plumbing, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!
"We used West coast plumbing to help with a leak we had in the house. They did an exceptional job. They were very prompt and informative about the issue and the work that needed to be performed. We will be calling them for any future needs."
Lucy C on September 2023
At West Coast Plumbing, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!
"We used West coast plumbing to help with a leak we had in the house. They did an exceptional job. They were very prompt and informative about the issue and the work that needed to be performed. We will be calling them for any future needs."
Lucy C on September 2023
PLUMBING ARTISANS 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.
"Martin arrived on time. He checked the system and offered what he needed to do and work right away! Good in communication and very respectful!"
Felipe C on May 2025
PLUMBING ARTISANS 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.
"Martin arrived on time. He checked the system and offered what he needed to do and work right away! Good in communication and very respectful!"
Felipe C on May 2025
At Joel's Plumbing Inc , our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.
"First time they were here. Two young boys showed up. Walked around the house for a little. Claimed they would come back with a video camera to inspect the pipes. That was 3 months ago. THEN they did do a snake in the garage. But, Left all the mess. They didnt not even bother sweeping or wiping anything. The didnt lay anything on the washer for their equipment. So the washer and dryer are scratched up pretty bad. Then when I called to get it rescheduled and handled properly they sent me elsewhere. As a business owner im used to provided a certain level of customer service. Even if the customer is tough or the job is hard I use those times as a chance to show people what i can do. Under promise and over deliver! EDITED Now the young lady who does the texting seems upset and taking what is a professional review, where i have not written anything to Attack personallyâ ¦.now im receiving personal Comments texted to me. With the way things have been going im Not surprised. Its unfortunate to say that Seems theres a genuine coaching opportunity here for joels plumbing."
Adam K on December 2022
At Joel's Plumbing Inc , our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.
"First time they were here. Two young boys showed up. Walked around the house for a little. Claimed they would come back with a video camera to inspect the pipes. That was 3 months ago. THEN they did do a snake in the garage. But, Left all the mess. They didnt not even bother sweeping or wiping anything. The didnt lay anything on the washer for their equipment. So the washer and dryer are scratched up pretty bad. Then when I called to get it rescheduled and handled properly they sent me elsewhere. As a business owner im used to provided a certain level of customer service. Even if the customer is tough or the job is hard I use those times as a chance to show people what i can do. Under promise and over deliver! EDITED Now the young lady who does the texting seems upset and taking what is a professional review, where i have not written anything to Attack personallyâ ¦.now im receiving personal Comments texted to me. With the way things have been going im Not surprised. Its unfortunate to say that Seems theres a genuine coaching opportunity here for joels plumbing."
Adam K on December 2022
We are dedicated to providing our clients with the very best in plumbing and a variety of other projects. With over 20 years of combined experience, we take an enormous amount of pride in the attention of detail put into each of the projects we are involved in. We are known for our quality work and the integrity of our business practices. We look forward to building long-term relationships with our clients and guarantee your satisfaction. Call us today for a quote!
"Very positive, strongly recommended"
Leo T on June 2022
We are dedicated to providing our clients with the very best in plumbing and a variety of other projects. With over 20 years of combined experience, we take an enormous amount of pride in the attention of detail put into each of the projects we are involved in. We are known for our quality work and the integrity of our business practices. We look forward to building long-term relationships with our clients and guarantee your satisfaction. Call us today for a quote!
"Very positive, strongly recommended"
Leo T on June 2022
Plumbing Plus is a locally owned and operated company that values honesty and integrity in all aspects of our business. With over 10 years of experience, we pride ourselves on our 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!
"These guys are terrible, dishonest and they boke my toilet and refuse to repair or replace it. They were also unprofessional and did damage to an neighbor's toilet as well."
marc t on August 2024
Plumbing Plus is a locally owned and operated company that values honesty and integrity in all aspects of our business. With over 10 years of experience, we pride ourselves on our 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!
"These guys are terrible, dishonest and they boke my toilet and refuse to repair or replace it. They were also unprofessional and did damage to an neighbor's toilet as well."
marc t on August 2024
THE AFFORDABLE SPECALISTS, ALWAYS PROFESSIONAL ALWAYS NEAT, BECAUSE YOUR OPINION MATTERS. IN BUSINESS SINCE 1986. WE ARE FAMILY OWEND AND OPERATED, LICENCED AND BONDED, BEST PRICES (DO TO LESS OVERHEAD) WE WILL BEAT ANY WRITEN ESTIMATE. WHY PAY THOUSANDS MORE WHEN YOU CAN GET BETTER QUALITY OF WORK AT BETTER PRICES? WE ALSO OFFER THE BEST WARRANTIES ON WORK PERFORMED, WE SPECIALIZE IN COPPER REPIPES AND SEWER REPLACMENTS WITH TRENCHLESS TECHNOLOGY. WE DO IT ALL.
"DO NOT USE THIS COMPANY."
Dolores J on March 2025
THE AFFORDABLE SPECALISTS, ALWAYS PROFESSIONAL ALWAYS NEAT, BECAUSE YOUR OPINION MATTERS. IN BUSINESS SINCE 1986. WE ARE FAMILY OWEND AND OPERATED, LICENCED AND BONDED, BEST PRICES (DO TO LESS OVERHEAD) WE WILL BEAT ANY WRITEN ESTIMATE. WHY PAY THOUSANDS MORE WHEN YOU CAN GET BETTER QUALITY OF WORK AT BETTER PRICES? WE ALSO OFFER THE BEST WARRANTIES ON WORK PERFORMED, WE SPECIALIZE IN COPPER REPIPES AND SEWER REPLACMENTS WITH TRENCHLESS TECHNOLOGY. WE DO IT ALL.
"DO NOT USE THIS COMPANY."
Dolores J on March 2025
First Thought Plumbing is a family-owned and operated company serving Los Angeles County. We pride ourselves on high quality work and lasting relationships with our customers. With our experience and knowledge, our plumbers are capable of handling anything from complicated leaks and simple plumbing repairs to kitchen or bathroom remodels. No job is too big or too small. We focus on providing superior customer service from the beginning of the project to the end. Our customers are always our First Thought!
"Replaced a 40 gallon water heater within a couple hours after I contacted them. Super efficient, super personable, exceptionally capable and totally affordable. I will recommend First Thought Plumbing any chance I get. Picture is the failed water heater…"
Scott N on May 2025
First Thought Plumbing is a family-owned and operated company serving Los Angeles County. We pride ourselves on high quality work and lasting relationships with our customers. With our experience and knowledge, our plumbers are capable of handling anything from complicated leaks and simple plumbing repairs to kitchen or bathroom remodels. No job is too big or too small. We focus on providing superior customer service from the beginning of the project to the end. Our customers are always our First Thought!
"Replaced a 40 gallon water heater within a couple hours after I contacted them. Super efficient, super personable, exceptionally capable and totally affordable. I will recommend First Thought Plumbing any chance I get. Picture is the failed water heater…"
Scott N on May 2025
We At Proview Plumbing & Rooter, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.
"Kind, efficient, and honest. Knowledgeable and experienced. Will work with Art and his team again!"
Alexis F on January 2024
We At Proview Plumbing & Rooter, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.
"Kind, efficient, and honest. Knowledgeable and experienced. Will work with Art and his team again!"
Alexis F on January 2024
Overland Plumbing is your local plumbing installation and repair company. We specialize in residential plumbing services for both new and old homes. We look forward to helping you. Call us today.
"n/a"
Rachel S on May 2025
Overland Plumbing is your local plumbing installation and repair company. We specialize in residential plumbing services for both new and old homes. We look forward to helping you. Call us today.
"n/a"
Rachel S on May 2025
Water heater installations and replacements FAQs
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.
- Plumbing - Multiple Projects
- Shower Pan Install
- Plumbing for a Remodel or Addition - Install
- Plumbing Item Repair
- Water Heater - Repair or Service
- Sink Repair
- Steam Shower - Install
- Faucet Install or Replace
- Walk In Tub - Install or Replace
- Drain Repair
- Shower Install or Replace
- Pipe Repair
- Drain Line Breakage - Camera Locate
- Tankless Water Heater - Install
- Water Main - Install, Replace or Repair
- Sump Pump - Repair or Replace
- Drain Clog or Blockage - Clear
- Sewer Main - Clear
- Faucets, Fixtures and Pipes - Repair or Replace
- Plumbing Item Installation
- Sink Installation
- Pipe Installation
- Faucet Installation
- Gas Piping
- Whirlpool Bathtub Install or Replace
- Plumbing Multi-Item Installation
- Sewer Main - Install, Replace or Repair
- Drain Installation
- Plumbing Multi-item Repair
- Toilet Installation
- Bathtub Install or Replace
- Sump Pump or Interior Foundation Drains - Install
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