Top 10 tankless water heater installation services in Diamond Bar, CA

Porch Pro Headshot Option One Plumbing
Tankless Water Heater Installation
Serves Diamond Bar, California
(3,520)
"There are not enough good things I can say about Option One Plumbing. I called the company because I had a serious drain problem. Everyone I dealt with was attentive, friendly, and professional, from the woman I spoke with on the phone tomato the appointment to the technician who came out and did t...Read more about Option One Plumbing
"There are not enough good things I can say about Option One Plumbing. I called the company because I had a serious drain problem. Everyone I dealt with was attentive, friendly, and professional, from the woman I spoke with on the phone tomato the appointment to the technician who came out and did t...Read more about Option One Plumbing
Porch Pro Headshot Design Air, Inc.
Tankless Water Heater Installation
Serves Diamond Bar, California
(197)
We are a family owned and operated Air Conditioning and Heating repair and installation service company. We provide quality work at affordable prices. We have been servicing the Inland Empire for 14 years now and have experience in the business for over 30+years. We provide service to both residenti...Read more about Design Air, Inc.
We are a family owned and operated Air Conditioning and Heating repair and installation service company. We provide quality work at affordable prices. We have been servicing the Inland Empire for 14 years now and have experience in the business for over 30+years. We provide service to both residenti...Read more about Design Air, Inc.
Porch Pro Headshot CWP Heating & Air, Inc.
Tankless Water Heater Installation
Serves Diamond Bar, California
(159)
C.W.P. Heating and Air's number one goal is to supply local residents and businesses with the highest quality HVAC service available. Whether it be a simple furnace repair, or a large A/C installation, our staff and technicians are trained to meet and exceed your expectations. Because we value custo...Read more about CWP Heating & Air, Inc.
C.W.P. Heating and Air's number one goal is to supply local residents and businesses with the highest quality HVAC service available. Whether it be a simple furnace repair, or a large A/C installation, our staff and technicians are trained to meet and exceed your expectations. Because we value custo...Read more about CWP Heating & Air, Inc.
Porch Pro Headshot Jeff Shaffer Plumbing
Tankless Water Heater Installation
Serves Diamond Bar, California
(83)
"I had a great experience with Jeff Shaffer Plumbing! He was very professional by keeping me in the loop through the whole bathroom remodel process. It is very clear just by looking at the quality of his work that he has been doing plumbing for a very long time. Next time I have a plumbing problem, ...Read more about Jeff Shaffer Plumbing
"I had a great experience with Jeff Shaffer Plumbing! He was very professional by keeping me in the loop through the whole bathroom remodel process. It is very clear just by looking at the quality of his work that he has been doing plumbing for a very long time. Next time I have a plumbing problem, ...Read more about Jeff Shaffer Plumbing
Porch Pro Headshot California Cool Breeze
Tankless Water Heater Installation
Serves Diamond Bar, California
(55)
California Cool Breeze is a Top-Notch full service HVAC contractor in southern California. Our Technicians are NATE and EPA Certified, plus have gone through a full background check. We service all makes and models and installation such as Rheem, Amana, Trane, American Standard, Lennox, Armstrong, C...Read more about California Cool Breeze
California Cool Breeze is a Top-Notch full service HVAC contractor in southern California. Our Technicians are NATE and EPA Certified, plus have gone through a full background check. We service all makes and models and installation such as Rheem, Amana, Trane, American Standard, Lennox, Armstrong, C...Read more about California Cool Breeze
Porch Pro Headshot Aaron's Plumbing and Home Repair, Inc.
Tankless Water Heater Installation
Serves Diamond Bar, California
(96)
Welcome to Aaron's Plumbing and Home Repair, Inc. Aaron's Plumbing has been in business since 1984 with over 50 years of collective knowledge and experience amongst all our plumbers. We believe in helping our customers as if they were our own family. We are licensed, bonded and insured.
Welcome to Aaron's Plumbing and Home Repair, Inc. Aaron's Plumbing has been in business since 1984 with over 50 years of collective knowledge and experience amongst all our plumbers. We believe in helping our customers as if they were our own family. We are licensed, bonded and insured.
Porch Pro Headshot Sturges Heating and Air Conditioning
Tankless Water Heater Installation
Serves Diamond Bar, California
(68)
When it comes to indoor comfort, you need the right air conditioning and heating systems to fit your home or building size and budget. Our HVAC solutions are built with a variety of the best products and superior services. From designing, selecting, and installing an HVAC system, air conditioner, or...Read more about Sturges Heating and Air Conditioning
When it comes to indoor comfort, you need the right air conditioning and heating systems to fit your home or building size and budget. Our HVAC solutions are built with a variety of the best products and superior services. From designing, selecting, and installing an HVAC system, air conditioner, or...Read more about Sturges Heating and Air Conditioning
Porch Pro Headshot A.C.R Contracting & Handyman Services
Tankless Water Heater Installation
Serves Diamond Bar, California
(16)
We are a multifaceted service company. We provide: General construction, kitchen, bathroom remodels. Door, window installations. Remove walls or install new walls. Plumbing, electrical, drywall, stucco, tile or wood flooring, & framing. We pride our selves on providing fast dependable and quality w...Read more about A.C.R Contracting & Handyman Services
We are a multifaceted service company. We provide: General construction, kitchen, bathroom remodels. Door, window installations. Remove walls or install new walls. Plumbing, electrical, drywall, stucco, tile or wood flooring, & framing. We pride our selves on providing fast dependable and quality w...Read more about A.C.R Contracting & Handyman Services
Porch Pro Headshot Ol' Bock's Custom Plumbing
Tankless Water Heater Installation
Serves Diamond Bar, California
For unmatched precision and unbeatable quality, Ol' Bock's Custom is the go to plumber for a wide range of plumbing services. Large or small, simple or complex, we have the tools and know how to get the job done. We boast the cleanest, most functional and long-lasting products and services among any...Read more about Ol' Bock's Custom Plumbing
For unmatched precision and unbeatable quality, Ol' Bock's Custom is the go to plumber for a wide range of plumbing services. Large or small, simple or complex, we have the tools and know how to get the job done. We boast the cleanest, most functional and long-lasting products and services among any...Read more about Ol' Bock's Custom Plumbing
Porch Pro Headshot Talent Air
Tankless Water Heater Installation
Serves Diamond Bar, California
(13)
We would like to introduce our company, Talent Air is a family owned and operated company, with hopes that we may serve your company's Air Conditioning needs. We are a commercial heating, ventilating, and air conditioning contractor with decades of experience. We pride ourselves on the fact we maint...Read more about Talent Air
We would like to introduce our company, Talent Air is a family owned and operated company, with hopes that we may serve your company's Air Conditioning needs. We are a commercial heating, ventilating, and air conditioning contractor with decades of experience. We pride ourselves on the fact we maint...Read more about Talent Air

Costs to Install a Tankless Hot Water Heater

$2154 - $2482
Diamond Bar, CA average
Get costs in your area
While $2154 - $2482 represents average costs for Diamond Bar, use the cost guide to determine prices near you.
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Top questions to ask before hiring a tankless water heater installer

A professional will assist you with scope and estimates, but having a clear idea of what you want to accomplish will help communication.

Do you want professionals to do everything, or do you have the time and skill to do some of the work?

Many projects such as have a DIY component, such as painting or cleanup.

First and foremost, protect yourself and make sure the contractor and any sub-contractors are licensed, bonded and insured.

Recent reviews for Diamond Bar tankless water heater installation services

29469

Very conscientious. Uses quality parts. He and his men do nice work.

- Molly Max
22572

Chris did a great job for me. He showed up looking professional, knew what he was talking about and his work was excellent. Would recommend him to anyone!

- Mike Stickley
23674

Experience counts and when it comes to experience Chris cant be beat. Add to that the best customer service out there you just cant go wrong. Had Cool Breeze install my system new from the ground up. It has performed flawless and perfectly matched to my n...

- Robert Herkelrath
22746

I have done a lot of work with this company, they are among the best. Chris is very professional and always willing to answer any questions you may have.

- Ricky Felix
22976

I'm very please from his work.. I perches old house and I asked from Christofer to give me an estimate for a new system and he explained to me about the high energy efficiency system. We're very happy from the low electric bill and the fair price.

- Gil Mizrahi
22629

I live in illinois but own a rental home in Moreno valley. Chris has handled my Ac issues for several years. I love that I have someone I trust. Especially when the repairs and work he is doing, and what I'm praying for, aren't things I can just go out a...

- Rocky Stone
22575

Chris is a true professional and extremely talented in his trade.

- Michael Guinn
41282

Excellent & Trustworthy! On memorial day this year I came downstairs to a flooded kitchen. Tom saved my new fridge and stove from getting damaged by locating a valve leak and fixing it on the spot. And, for a very reasonable price. I've had him back ...

- Toni Novak
116740

Your plumber replaces the main water line and they did a very professional job. Brain and Travis, I can’t remember the other young man. There are not eunuch words To professional there were.

- Oliver Hearn
82617

We been having this issue in the back of our mind for over 2 weeks know, and Option One is forcing us to go to the trouble of a lawsuit. Due to their misjudgment in identifying the right solution for a slab leak. (misjudged the leak area, provided soluti...

- Jason Chang
90378

Adam was great. He showed up on time and went above and beyond what any other plumber would do. Best of all, he was able to finally fix my water hammer!! I'd already had 2 other plumbers out to my house to try and fix it and didn't. Thank you again Adam a...

- Susan Massagli-Benson
85541

So the plumber comes to fix a faucet he charges me $150. While working on the faucet he breaks a part of it and then says he now has to charge me $1,200. He starts telling me how he needs to do something right away because when the water turns on i will ...

- chris cazares

All tankless water heater installation services in Diamond Bar, CA

Porch Pro Headshot PhD Plumbing
Tankless Water Heater Installation
Serves Diamond Bar, California
(9)
Phone: (909)985-1975 Slogan: We guarantee to fix what ails your plumbing the first time. That means no surprise emergencies after our certified plumbers leave your home or business, just quality repairs done right. Description: We know the value of quality plumbing repairs and have made it our job...Read more about PhD Plumbing
Phone: (909)985-1975 Slogan: We guarantee to fix what ails your plumbing the first time. That means no surprise emergencies after our certified plumbers leave your home or business, just quality repairs done right. Description: We know the value of quality plumbing repairs and have made it our job...Read more about PhD Plumbing
Porch Pro Headshot JLR Construction
Tankless Water Heater Installation
Serves Diamond Bar, California
(2)
Hello my Name is Tristen I created a Cleaning service that provides a great young energetic group that will clean anything you may have for us. We clean office spaces we clean schools we clean churches, houses ,restaurants and everything in-between. We can use all natural products to be safe and ef...Read more about JLR Construction
Hello my Name is Tristen I created a Cleaning service that provides a great young energetic group that will clean anything you may have for us. We clean office spaces we clean schools we clean churches, houses ,restaurants and everything in-between. We can use all natural products to be safe and ef...Read more about JLR Construction
Porch Pro Headshot Prasad Plumbing
Tankless Water Heater Installation
Serves Diamond Bar, California
Welcome To A. Prasad Plumbing Don't wait for plumbing problems to put you in a tight spot! Call us for all of your needs and trust your plumbing to our certified plumbing team! Whether you're dealing with a simple yet stubbornly clogged drain or need a pipe replacement, we have the tools, skills,...Read more about Prasad Plumbing
Welcome To A. Prasad Plumbing Don't wait for plumbing problems to put you in a tight spot! Call us for all of your needs and trust your plumbing to our certified plumbing team! Whether you're dealing with a simple yet stubbornly clogged drain or need a pipe replacement, we have the tools, skills,...Read more about Prasad Plumbing
Porch Pro Headshot Routhier Plumbing Inc.
Tankless Water Heater Installation
Serves Diamond Bar, California
(17)
Call us today for an estimate!
Call us today for an estimate!
Porch Pro Headshot Forward Plumbing
Tankless Water Heater Installation
Serves Diamond Bar, California
Owner operator. Regis Calles DBA Forward Plumbing. Please dial area codes 626, 562, or 310-PLUMBER (758-6237) for service Sunday - Friday. Offering drain cleaning with snake, hydro jet or kinetic force methods. Also offering backflow prevention testing, repairs and certification, electronic pipe lo...Read more about Forward Plumbing
Owner operator. Regis Calles DBA Forward Plumbing. Please dial area codes 626, 562, or 310-PLUMBER (758-6237) for service Sunday - Friday. Offering drain cleaning with snake, hydro jet or kinetic force methods. Also offering backflow prevention testing, repairs and certification, electronic pipe lo...Read more about Forward Plumbing
Porch Pro Headshot MVP Plumbing & Drain Service
Tankless Water Heater Installation
Serves Diamond Bar, California
MVP Plumbing & Drain Service is your dedicated, local plumbing company ready to work when you need it. We offer complete residential, commercial and multi-family plumbing service including: drain cleaning, water leaks, gas repair/ replacement, water heaters, faucets, fixtures, drain/ sewer electron...Read more about MVP Plumbing & Drain Service
MVP Plumbing & Drain Service is your dedicated, local plumbing company ready to work when you need it. We offer complete residential, commercial and multi-family plumbing service including: drain cleaning, water leaks, gas repair/ replacement, water heaters, faucets, fixtures, drain/ sewer electron...Read more about MVP Plumbing & Drain Service
Porch Pro Headshot Calwest Controls Inc
Tankless Water Heater Installation
Serves Diamond Bar, California
CalWest Controls is a leading provider of advanced building systems for a wide variety of industries and buildings. We specialize in design, installation and service of energy managerment control systems for HVAC in commercial buildings, colleges, schools, retail, government buildings, hotels, hospi...Read more about Calwest Controls Inc
CalWest Controls is a leading provider of advanced building systems for a wide variety of industries and buildings. We specialize in design, installation and service of energy managerment control systems for HVAC in commercial buildings, colleges, schools, retail, government buildings, hotels, hospi...Read more about Calwest Controls Inc
Porch Pro Headshot Right Time Rooter & Plumbing Services, Inc
Tankless Water Heater Installation
Serves Diamond Bar, California
Working in the plumbing industry, for over 25 years, has allowed me to love what I do much more. I have the pleasure of affecting people from all walks of life and various backgrounds; including professionals to stay at home moms and dads and those with limited incomes. I not only complete the plumb...Read more about Right Time Rooter & Plumbing Services, Inc
Working in the plumbing industry, for over 25 years, has allowed me to love what I do much more. I have the pleasure of affecting people from all walks of life and various backgrounds; including professionals to stay at home moms and dads and those with limited incomes. I not only complete the plumb...Read more about Right Time Rooter & Plumbing Services, Inc
Porch Pro Headshot Steel Plumbing & Drain Experts, Inc.
Tankless Water Heater Installation
Serves Diamond Bar, California
For over a decade, Steel Plumbing & Drain Experts has been providing top-quality plumbing services in Fontana and throughout San Bernardino County. A family owned and operated company, they strive to provide the very best in workmanship and customer care. In fact, they don’t stop at just providing f...Read more about Steel Plumbing & Drain Experts, Inc.
For over a decade, Steel Plumbing & Drain Experts has been providing top-quality plumbing services in Fontana and throughout San Bernardino County. A family owned and operated company, they strive to provide the very best in workmanship and customer care. In fact, they don’t stop at just providing f...Read more about Steel Plumbing & Drain Experts, Inc.
Porch Pro Headshot M C PLUMBING COMPANY
Tankless Water Heater Installation
Serves Diamond Bar, California
New company with 20 years in the plumbing industry
New company with 20 years in the plumbing industry
Porch Pro Headshot DRAIN WORKS PLUMBING COMPANY
Tankless Water Heater Installation
Serves Diamond Bar, California
DRAIN WORKS PLUMBING COMPANY offers plumbing services to the Inland Empire area. Call us today!
DRAIN WORKS PLUMBING COMPANY offers plumbing services to the Inland Empire area. Call us today!
Porch Pro Headshot Dry Master Chino Hills
Tankless Water Heater Installation
Serves Diamond Bar, California
Dry Master crews are always ready to provide immediate flood assistance to customers whose property has been affected by any of a number of water damage causes: broken pipes, leaky faucets, overflowing sinks, broken water heaters, backed up toilets, malfunctioning washing machines, refrigerator leak...Read more about Dry Master Chino Hills
Dry Master crews are always ready to provide immediate flood assistance to customers whose property has been affected by any of a number of water damage causes: broken pipes, leaky faucets, overflowing sinks, broken water heaters, backed up toilets, malfunctioning washing machines, refrigerator leak...Read more about Dry Master Chino Hills
Porch Pro Headshot Five Stars Plumbing
Tankless Water Heater Installation
Serves Diamond Bar, California

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Tankless Water Heater Installation
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Tankless Water Heater Installation
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Tankless Water Heater Installation
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Navien tankless water heater model nor 240a making noise like a pump may be failing.