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Tankless water heater installers in Olathe

Charles James Plumbing
1607 Gulf Street
5.00(
1
)
Approved Pro
Charles James Plumbing
1607 Gulf Street
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Charles James 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

"Charles was extremely knowledgeable and helpful. I plan on using him anytime we have any plumbing issues in the future."

Scott M on June 2021

Charles James 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

"Charles was extremely knowledgeable and helpful. I plan on using him anytime we have any plumbing issues in the future."

Scott M on June 2021


Avatar for Connelly Plumbing Solutions, LLC
Connelly Plumbing Solutions, LLC
10583 Widmer Rd
4.70(
34
)
Approved Pro
Connelly Plumbing Solutions, LLC
10583 Widmer Rd
4.70(
34
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
26 local quotes requested

Welcome to Connelly Plumbing Solutions 'Your Neighborhood Plumber' Feel free to call direct for service: 913-768-7676 Please keep in mind that this is a lead service in which we are charged $40-$200 whether you have us out or not. Please do not request service if you are not truly ready. There are a ton of plumbers out there. We would love the opportunity to win you over.

"The first time I used Connelly Plumbing, their poor workmanship flooded my basement, and then they tried to charge me for having to send someone to fix their mess. The second time I used them, they sent an inexperienced plumber who told me he had to remove my toilet to clean out a clogged drain pipe. He got his snake stuck and had to call for backup. The more experience plumber immediately found the cleanout, which made the removal of my toilet completely unnecessary, and within minutes, got the snake unstuck. They then charged my $400 for the completely unnecessary toilet removal. Ovoid this company at all cost."

Tim H on June 2025

Welcome to Connelly Plumbing Solutions 'Your Neighborhood Plumber' Feel free to call direct for service: 913-768-7676 Please keep in mind that this is a lead service in which we are charged $40-$200 whether you have us out or not. Please do not request service if you are not truly ready. There are a ton of plumbers out there. We would love the opportunity to win you over.

"The first time I used Connelly Plumbing, their poor workmanship flooded my basement, and then they tried to charge me for having to send someone to fix their mess. The second time I used them, they sent an inexperienced plumber who told me he had to remove my toilet to clean out a clogged drain pipe. He got his snake stuck and had to call for backup. The more experience plumber immediately found the cleanout, which made the removal of my toilet completely unnecessary, and within minutes, got the snake unstuck. They then charged my $400 for the completely unnecessary toilet removal. Ovoid this company at all cost."

Tim H on June 2025


Avatar for Sewer Surgeon, LLC
Sewer Surgeon, LLC
7660 1/2 N Oak Traffic Way Ste B
4.70(
529
)
Approved Pro
Sewer Surgeon, LLC
7660 1/2 N Oak Traffic Way Ste B
4.70(
529
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
475 local quotes requested

Sewer Surgeon, LLC, is family owned and operated! We have been serving our neighbors for several years. We take pride in our work and pay extra attention to detail. We promise to treat your home as if it were our own. Call us today!

"Great and speedy"

Andrew J on June 2025

Sewer Surgeon, LLC, is family owned and operated! We have been serving our neighbors for several years. We take pride in our work and pay extra attention to detail. We promise to treat your home as if it were our own. Call us today!

"Great and speedy"

Andrew J on June 2025


Avatar for Paschal Air Plumbing & Electric
Paschal Air Plumbing & Electric
4902 Frederick Avenue
3.83(
10
)
Approved Pro
Paschal Air Plumbing & Electric
4902 Frederick Avenue
3.83(
10
)
Approved Pro
Customers say: Quality work
108 local quotes requested
60 years of experience

At Paschal there is a single statement that we live by every day. “Professional People. Professional Service.” Being a professional is more than just earning a living through an occupation. Professionalism involves consistently achieving high standards, both visibly and “behind the scenes” – whatever your role or profession. Professionalism is a powerful quality. It allows you to fulfill your role to the best of your ability. It helps you to impress and inspire others. And it gives you a deep sense of satisfaction and self-worth. What’s more, professionalism is something that everyone can aspire to from day one of their career. A Paschal Professional gives 150% every day. They go above and beyond what needs to be done. They have pride & satisfaction in every project they tackle.

"Installed my elderly grandmother Norma's HVAC 6 years ago. Recently A coil was icing up. She was told she'd need a new A coil (not cleaning first). A-Coil was covered under 10 year warranty but not labor. They quoted her 2900 to install the new A-Coil. I checked with multiple other HVAC firms, and the labor to install this part and the refridgerant was on the order of 900-1000. This firm gouged my elderly grandmother. They didn't send her an itemized bill, so I think they just have a set price that includes the part. They took her money and there has been no effort by them to make this right. Watch out, they'll do this to you too or someone you love. They said it's inflation, but this is what happens when they sense that they can take advantage of someone. They won't talk to me (her grandson), only her, and told her there was nothing they could do and just took her money. Beware, use someone else, you cannot trust these people."

Jon I on May 2024

At Paschal there is a single statement that we live by every day. “Professional People. Professional Service.” Being a professional is more than just earning a living through an occupation. Professionalism involves consistently achieving high standards, both visibly and “behind the scenes” – whatever your role or profession. Professionalism is a powerful quality. It allows you to fulfill your role to the best of your ability. It helps you to impress and inspire others. And it gives you a deep sense of satisfaction and self-worth. What’s more, professionalism is something that everyone can aspire to from day one of their career. A Paschal Professional gives 150% every day. They go above and beyond what needs to be done. They have pride & satisfaction in every project they tackle.

"Installed my elderly grandmother Norma's HVAC 6 years ago. Recently A coil was icing up. She was told she'd need a new A coil (not cleaning first). A-Coil was covered under 10 year warranty but not labor. They quoted her 2900 to install the new A-Coil. I checked with multiple other HVAC firms, and the labor to install this part and the refridgerant was on the order of 900-1000. This firm gouged my elderly grandmother. They didn't send her an itemized bill, so I think they just have a set price that includes the part. They took her money and there has been no effort by them to make this right. Watch out, they'll do this to you too or someone you love. They said it's inflation, but this is what happens when they sense that they can take advantage of someone. They won't talk to me (her grandson), only her, and told her there was nothing they could do and just took her money. Beware, use someone else, you cannot trust these people."

Jon I on May 2024


Avatar for J.F. Denney Plumbing and Heating, Inc.
J.F. Denney Plumbing and Heating, Inc.
76 Ash Street
4.63(
44
)
Approved Pro
J.F. Denney Plumbing and Heating, Inc.
76 Ash Street
4.63(
44
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
14 local quotes requested

J.F. Denney Plumbing and Heating, Inc., has been in business since 1965! We would love the opportunity to show you what our experience and expertise can mean for the overall value of your project.

"Local company, attentive, great quote."

Andrea J on February 2025

J.F. Denney Plumbing and Heating, Inc., has been in business since 1965! We would love the opportunity to show you what our experience and expertise can mean for the overall value of your project.

"Local company, attentive, great quote."

Andrea J on February 2025


Avatar for Arete Plumbarius
Arete Plumbarius
1206 North Swope Dr
4.83(
12
)
Approved Pro
Arete Plumbarius
1206 North Swope Dr
4.83(
12
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

Our mission at Arete Plumbarius is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Arete Plumbarius stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"jobs were completed quickly."

Debbie S on June 2025

Our mission at Arete Plumbarius is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Arete Plumbarius stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"jobs were completed quickly."

Debbie S on June 2025


Avatar for Archer Plumbing LLC
Archer Plumbing LLC
7117 W 71st St
5.00(
6
)
Approved Pro
Archer Plumbing LLC
7117 W 71st St
5.00(
6
)
Approved Pro
15 years of experience
Warranties offered

We are a 4th and 5th generation family owned and operated plumbing company with 40 plus years in the business. AAA Plus rating with the better Business bureau and awards won in the plumbing field in granted by the governor of Missouri. We will be able to promptly and professionally handle any plumbing issue your house may have. Please call to contact if any questions 913-262-2144

"Awesome job, finished quickly with no issues."

Lisa S on May 2025

We are a 4th and 5th generation family owned and operated plumbing company with 40 plus years in the business. AAA Plus rating with the better Business bureau and awards won in the plumbing field in granted by the governor of Missouri. We will be able to promptly and professionally handle any plumbing issue your house may have. Please call to contact if any questions 913-262-2144

"Awesome job, finished quickly with no issues."

Lisa S on May 2025


Avatar for Mission Plumbing, Heating, & Cooling
Mission Plumbing, Heating, & Cooling
5729 Nieman Road
3.80(
15
)
Approved Pro
Mission Plumbing, Heating, & Cooling
5729 Nieman Road
3.80(
15
)
Approved Pro
Customers say: Quality work
48 local quotes requested
25 years of experience

Whether you're dealing with a plumbing emergency or are interested in replacing your air conditioning or heating system, our team at Mission Plumbing, Heating & Cooling is here to help. We have been trusted by homeowners in Kansas and Missouri since 1978, delivering the reliable service that keeps our customers comfortable all year long. Our plumbing and HVAC professionals are licensed, bonded, and insured, and you can count on our expertise in diagnosing and handling any issue you might be having with your home. If you're interested in protecting the environment and saving on your utility bill, we can also talk to you about energy-efficient upgrades and installations.

"Quality technicians that are looking to be an advisor not looking to sell me something. Really appreciated them explaining my options."

Austin F on March 2025

Whether you're dealing with a plumbing emergency or are interested in replacing your air conditioning or heating system, our team at Mission Plumbing, Heating & Cooling is here to help. We have been trusted by homeowners in Kansas and Missouri since 1978, delivering the reliable service that keeps our customers comfortable all year long. Our plumbing and HVAC professionals are licensed, bonded, and insured, and you can count on our expertise in diagnosing and handling any issue you might be having with your home. If you're interested in protecting the environment and saving on your utility bill, we can also talk to you about energy-efficient upgrades and installations.

"Quality technicians that are looking to be an advisor not looking to sell me something. Really appreciated them explaining my options."

Austin F on March 2025


Avatar for Kings Collective
Kings Collective
5.00(
1
)
Approved Pro
Kings Collective
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
304 local quotes requested

We transform homes into spaces that not only nurture the deepest wellsprings of human beings, but also have an everlasting impact for generations to come. Our team is engraved with the values of kings. We aim to build, serve, and lead with integrity and excellence. We believe that by embodying these values, we can create a positive impact in the lives of our clients, our team members, and our community.

"Excellent, they made quick work of a bathroom that I goofed up and had it done in a week!"

Keith B on April 2024

We transform homes into spaces that not only nurture the deepest wellsprings of human beings, but also have an everlasting impact for generations to come. Our team is engraved with the values of kings. We aim to build, serve, and lead with integrity and excellence. We believe that by embodying these values, we can create a positive impact in the lives of our clients, our team members, and our community.

"Excellent, they made quick work of a bathroom that I goofed up and had it done in a week!"

Keith B on April 2024


Avatar for ARMSTRONG KITCHENS
ARMSTRONG KITCHENS
9310 W 87TH ST
4.82(
28
)
Approved Pro
ARMSTRONG KITCHENS
9310 W 87TH ST
4.82(
28
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
295 local quotes requested

For fastest and best experience, we recommend that you call us directly, 913 642 3337, or come to our Design showroom, conveniently located on 87th Street across from Louisburg Square. (appointments encouraged, not required of course.) Yes we are full service licensed general contractors for Johnson County, but foremost we are about great design! Our showroom is where we start with ideas, and then we follow up with home appointments. Who are we exactly? We’re your kitchen's all-in-one full service remodeling answer for peace of mind. Kitchen remodeling is complex because many diverse skills must come together, correctly and without slippage. At Armstrong Kitchens we combine our wide range of abilities and experience for your best outcome, and we’ve had many decades to pull it all together. We are unique in being all of the following: -Interior Designers: each designer has a degree in Interior Design and is highly experienced, to make sure your new update looks like you want it to, and so that it fits well into your home. -NKBA Kitchen & Bath Designers: each designer is fully trained and NKBA accredited, to handle the specification complexities and minute technical details of all the products you will need. -Licensed General Contractor: We make sure your wonderful new room comes together the way its supposed to, by putting it together ourselves. We are not only licensed for General Contracting, but also Electrical & Mechanical and lead paint abatement. Like the old saying goes “If you want something done right…” In our 72 year history as a multi-generational family business, this has been the proven recipe for success.

"Look no further! Our kitchen remodel was top to bottom and even included tear-out of ceiling soffits. From the start: Pricing was competitive with an easy to understand estimate. Classic or trendy, Kristeen teaches at a local college and knows what’s out there and what we could expect. Communication was easy and prompt. Everyone was GREAT to work with and the job was completed ON TIME. They go ABOVE & BEYOND! Over a year after we were done our “Smart” faucet motor went out. At no charge, father and son came out and switched it out for us. We have done our share of remodeling and wish we had found them sooner. I LOVE my kitchen!"

Elisa H on August 2024

For fastest and best experience, we recommend that you call us directly, 913 642 3337, or come to our Design showroom, conveniently located on 87th Street across from Louisburg Square. (appointments encouraged, not required of course.) Yes we are full service licensed general contractors for Johnson County, but foremost we are about great design! Our showroom is where we start with ideas, and then we follow up with home appointments. Who are we exactly? We’re your kitchen's all-in-one full service remodeling answer for peace of mind. Kitchen remodeling is complex because many diverse skills must come together, correctly and without slippage. At Armstrong Kitchens we combine our wide range of abilities and experience for your best outcome, and we’ve had many decades to pull it all together. We are unique in being all of the following: -Interior Designers: each designer has a degree in Interior Design and is highly experienced, to make sure your new update looks like you want it to, and so that it fits well into your home. -NKBA Kitchen & Bath Designers: each designer is fully trained and NKBA accredited, to handle the specification complexities and minute technical details of all the products you will need. -Licensed General Contractor: We make sure your wonderful new room comes together the way its supposed to, by putting it together ourselves. We are not only licensed for General Contracting, but also Electrical & Mechanical and lead paint abatement. Like the old saying goes “If you want something done right…” In our 72 year history as a multi-generational family business, this has been the proven recipe for success.

"Look no further! Our kitchen remodel was top to bottom and even included tear-out of ceiling soffits. From the start: Pricing was competitive with an easy to understand estimate. Classic or trendy, Kristeen teaches at a local college and knows what’s out there and what we could expect. Communication was easy and prompt. Everyone was GREAT to work with and the job was completed ON TIME. They go ABOVE & BEYOND! Over a year after we were done our “Smart” faucet motor went out. At no charge, father and son came out and switched it out for us. We have done our share of remodeling and wish we had found them sooner. I LOVE my kitchen!"

Elisa H on August 2024

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FAQs for tankless water heater installation projects in Olathe, KS

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 Olathe, KS 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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