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Tankless water heater installers in South Pasadena

Avatar for First Thought Plumbing
First Thought Plumbing
5463 Beck Avenue
5.00(
9
)
Approved Pro
First Thought Plumbing
5463 Beck Avenue
5.00(
9
)
Approved Pro
Customers say: Quick response
29 local quotes requested
23 years of experience

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!

"Kenny is easy going and a straight shooter. He gave us a great quote on a tankless water heater and him and his team got the job done fast and right. He answers the phone and completes the job at the price he quoted. I will be calling him on any future plumbing projects. "

Armand F 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!

"Kenny is easy going and a straight shooter. He gave us a great quote on a tankless water heater and him and his team got the job done fast and right. He answers the phone and completes the job at the price he quoted. I will be calling him on any future plumbing projects. "

Armand F on March 2025


Drain Care Pro Plumbing
2403 El Molino Ave
5.00(
2
)
Approved Pro
Drain Care Pro Plumbing
2403 El Molino Ave
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 years of experience

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!

"He is professional, fast, and i never have to call him back to repair anything."

Renee . on April 2021

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!

"He is professional, fast, and i never have to call him back to repair anything."

Renee . on April 2021


Water Heater Pros
7101 Ramsgate Ave
5.00(
2
)
Approved Pro
Water Heater Pros
7101 Ramsgate Ave
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

Water Heater Pros prides itself on being the number one water heater company in the area. We built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being screened and approved as well as a licensed and insured professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started! Let us do the dirty work!

"They do good work, honest and reliable."

sylvia c on October 2018

Water Heater Pros prides itself on being the number one water heater company in the area. We built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being screened and approved as well as a licensed and insured professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started! Let us do the dirty work!

"They do good work, honest and reliable."

sylvia c on October 2018


Rooter Squad Plumbing
1218 S Glendale Ave, Ste 34
5.00(
2
)
Approved Pro
Rooter Squad Plumbing
1218 S Glendale Ave, Ste 34
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

At Rooter Squad Plumbing we pride ourselves on being the best plumbing company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started! Emergency Service Calls Available!!

"Sam is very expedient, diligent and honest. I highly recommend him."

amy h on November 2012

At Rooter Squad Plumbing we pride ourselves on being the best plumbing company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started! Emergency Service Calls Available!!

"Sam is very expedient, diligent and honest. I highly recommend him."

amy h on November 2012


Avatar for Homebreeze Contracting, Inc.
Homebreeze Contracting, Inc.
2261 Market St, Unit 4820
5.00(
1
)
Approved Pro
Homebreeze Contracting, Inc.
2261 Market St, Unit 4820
5.00(
1
)
Approved Pro
7 years of experience
Free onsite estimate

HomeBreeze is Southern California's #1 water heater specialist. We offer upfront, transparent prices & remote quotes so that you don't have to wait for an on-site visit to get a scope and price. No surprises once the plumber arrives -- just honest service with low prices. See our reviews to see how much our customers love our service.

HomeBreeze is Southern California's #1 water heater specialist. We offer upfront, transparent prices & remote quotes so that you don't have to wait for an on-site visit to get a scope and price. No surprises once the plumber arrives -- just honest service with low prices. See our reviews to see how much our customers love our service.


Avatar for ESB Plumbing
ESB Plumbing
1304 West 51st Street
5.00(
2
)
Approved Pro
ESB Plumbing
1304 West 51st Street
5.00(
2
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

ESB Plumbing 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.

"Very honest and professional. Mindful of safety regulations. Price is very reasonable. My whole family uses ESB and we recommend them to others. First time the owner came out he didn't even charge me. He tried to find the least expensive solution. This is so uncommon in today's world. I'm grateful and very satisfied."

Rachel A on May 2021

ESB Plumbing 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.

"Very honest and professional. Mindful of safety regulations. Price is very reasonable. My whole family uses ESB and we recommend them to others. First time the owner came out he didn't even charge me. He tried to find the least expensive solution. This is so uncommon in today's world. I'm grateful and very satisfied."

Rachel A on May 2021


Avatar for First Thought Plumbing
First Thought Plumbing
5463 Beck Avenue
4.95(
63
)
Approved Pro
First Thought Plumbing
5463 Beck Avenue
4.95(
63
)
Approved Pro
Customers say: Terrific value
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
23 years of experience

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!

"Kenny was amazing. Super knowledgeable and gave us a breakdown of how much everything cost. Even had him look at replacing our water heater and will definitely be going with First Thought when we upgrade that."

Adam W on February 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!

"Kenny was amazing. Super knowledgeable and gave us a breakdown of how much everything cost. Even had him look at replacing our water heater and will definitely be going with First Thought when we upgrade that."

Adam W on February 2025


Avatar for New Act Plumbing
New Act Plumbing
12642 Martha Street
4.55(
132
)
Approved Pro
New Act Plumbing
12642 Martha Street
4.55(
132
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
31 local quotes requested

New Act Plumbing, is a professional company that specializes in your custom remodels. We service all of Los Angeles, as well as Orange County, and we look forward to working with you to create the perfect bathroom or kitchen remodel. Please call us today!

"The technician showed up on time, was polite, got the job done."

George e on March 2025

New Act Plumbing, is a professional company that specializes in your custom remodels. We service all of Los Angeles, as well as Orange County, and we look forward to working with you to create the perfect bathroom or kitchen remodel. Please call us today!

"The technician showed up on time, was polite, got the job done."

George e on March 2025


Avatar for California Drains Incorporated
California Drains Incorporated
1424 7th Street
5.00(
6
)
Approved Pro
California Drains Incorporated
1424 7th Street
5.00(
6
)
Approved Pro
Customers say: Quick response
143 local quotes requested
11 years of experience

We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"This company is the best. They were upfront on the cost of the repairs and did a fantastic job. They will aways be our first choice for any future plumbing projects. Thank you, California Drains!"

Nikolai W on February 2025

We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"This company is the best. They were upfront on the cost of the repairs and did a fantastic job. They will aways be our first choice for any future plumbing projects. Thank you, California Drains!"

Nikolai W on February 2025


Avatar for Mr Rooter of San Bernardino
Mr Rooter of San Bernardino
410 West Valley Blvd
4.45(
11
)
Approved Pro
Mr Rooter of San Bernardino
410 West Valley Blvd
4.45(
11
)
Approved Pro
Customers say: Quick response
34 local quotes requested
15 years of experience

We're 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. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"They were quick to respond. Wally went over all of the repair options in detail but didn’t try to hard sell me on anything. They completed the repairs within their quoted time, were professional and courteous. I would rehire them in the future."

Michael B on March 2025

We're 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. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"They were quick to respond. Wally went over all of the repair options in detail but didn’t try to hard sell me on anything. They completed the repairs within their quoted time, were professional and courteous. I would rehire them in the future."

Michael B on March 2025

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Tankless water heater installations FAQs

Yes, although they have a higher upfront cost compared to traditional units, tankless water heaters can be worth the investment for many homeowners. They heat water on demand, eliminating standby energy losses and leading to 24% to 34% greater energy efficiency for homes using up to 41 gallons of hot water daily. Tankless units last longer—around 20 years with proper maintenance—and require less space than traditional units. They also reduce the risk of leaks and water damage since there's no tank to corrode and fail.

Tankless water heaters, including gas-powered models, do require electricity to operate components like the ignition and control systems. This means they won't function during a power outage. If you live in an area prone to outages and want to ensure a continuous hot water supply, consider installing a battery backup system or generator to keep your tankless water heater running when the power goes out.

You should set your tankless water heater to 120 degrees Fahrenheit for optimal safety and efficiency, as recommended by the U.S. Consumer Product Safety Commission. Setting the temperature at 120 degrees prevents scalding accidents, particularly for children and the elderly, and reduces energy consumption. Temperatures above 140 degrees increase the risk of burns and promote mineral buildup, which can decrease the system's efficiency.

A 20-minute shower uses 50 to 60 gallons of water, assuming a flow rate of 2.5 to 3 gallons per minute. A typical whole-house tankless water heater can produce 4 to 8 gallons of hot water per minute, providing continuous hot water for long showers. By installing low-flow showerheads and reducing shower time, you decrease water consumption and energy costs, maximizing the efficiency of your tankless system.

With proper maintenance, a tankless water heater lasts around 20 years, significantly longer than conventional tank water heaters, which last between 8 and 12 years. Regular inspections and timely repairs can further extend its lifespan. To keep your tankless system operating efficiently, have it inspected or serviced annually and address any minor issues promptly by contacting a local tankless water heater repair service.

The homeowners guide to tankless water heater installations
From average costs to expert advice, get all the answers you need to get your job done.
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