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Water heater installers and replacers in Larkspur

CJM Building Group, LLC
7350 East Progress Place, Number 102
5.00(
2
)
Approved Pro
CJM Building Group, LLC
7350 East Progress Place, Number 102
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 years of experience

We are dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. With over twenty years of experience we are proud to 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.

"CJM Building Group is a rare and exceptional find. Justin and his teams actually did a complete retail space buildout with expert craftsmanship, integrity and reliability. They discovered disengaged piping and had to repipe the whole space as well as install new toilets, sinks, and everything else plumbing. Justin communicated and recorded work so that we could monitor daily progress, which was extremely beneficial. The finished product is as promised and we couldnâ t be happier. We highly recommend CJM Building Group for your plumbing and heating needs. We will always contact them for future needs. Thank you, Justin!"

Lexi T on August 2022

We are dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. With over twenty years of experience we are proud to 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.

"CJM Building Group is a rare and exceptional find. Justin and his teams actually did a complete retail space buildout with expert craftsmanship, integrity and reliability. They discovered disengaged piping and had to repipe the whole space as well as install new toilets, sinks, and everything else plumbing. Justin communicated and recorded work so that we could monitor daily progress, which was extremely beneficial. The finished product is as promised and we couldnâ t be happier. We highly recommend CJM Building Group for your plumbing and heating needs. We will always contact them for future needs. Thank you, Justin!"

Lexi T on August 2022


Avatar for Black Diamond Mechanical, Inc.
Black Diamond Mechanical, Inc.
8122 Burl Wood Drive
5.00(
14
)
Approved Pro
Black Diamond Mechanical, Inc.
8122 Burl Wood Drive
5.00(
14
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
4 years of experience

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer need. 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.

"Made a huge effort to get my house done quickly. Overcame several unexpected issues to finish the project on time and on budget, including working on the weekend."

David G on October 2024

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer need. 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.

"Made a huge effort to get my house done quickly. Overcame several unexpected issues to finish the project on time and on budget, including working on the weekend."

David G on October 2024


Avatar for Rooter Guy, LLC
Rooter Guy, LLC
4890 Ironton Street
4.66(
2,705
)
Approved Pro
Rooter Guy, LLC
4890 Ironton Street
4.66(
2,705
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1094 local quotes requested

RooterGuy Plumbing has over 30 years plus of experience BBB Accredited since 2012 specializing in all facets of the plumbing work, from drain clearing to whole house piping. We are family owned and operated. We still run on word of mouth advertising rather than taking out ads that are costly, this helps us save money so that we may pass on that savings to our customers. We have over two thousand ratings on the HomeAdvisor web site, real customers whom we have provided a service to, from minor drain cleaning to large scale whole sewer replacements, and though we know all of this may not matter to most consumers, we work very hard and pride ourselves to do well and make sure that all of our customers feel comfortable with us and our services. We are insured and bonded, and we look out for all customers best interest, we never pressure anyone to use our services over others our knowledge and experience speaks for itself. Call us today and do not forget to ask about our discounts.

"We needed to replace a leaking sink in our rental and Rooter Guy was able to come next day."

Kelly S on May 2025

RooterGuy Plumbing has over 30 years plus of experience BBB Accredited since 2012 specializing in all facets of the plumbing work, from drain clearing to whole house piping. We are family owned and operated. We still run on word of mouth advertising rather than taking out ads that are costly, this helps us save money so that we may pass on that savings to our customers. We have over two thousand ratings on the HomeAdvisor web site, real customers whom we have provided a service to, from minor drain cleaning to large scale whole sewer replacements, and though we know all of this may not matter to most consumers, we work very hard and pride ourselves to do well and make sure that all of our customers feel comfortable with us and our services. We are insured and bonded, and we look out for all customers best interest, we never pressure anyone to use our services over others our knowledge and experience speaks for itself. Call us today and do not forget to ask about our discounts.

"We needed to replace a leaking sink in our rental and Rooter Guy was able to come next day."

Kelly S on May 2025


Avatar for Euro Plumbing, LLC
Euro Plumbing, LLC
13962 East Princeton Place
4.95(
382
)
Approved Pro
Euro Plumbing, LLC
13962 East Princeton Place
4.95(
382
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
65 local quotes requested

Euro Plumbing, LLC, has over 9 years of experience, and is licensed. We are a family owned and operated company that prides itself on communication, punctuality, professionalism, and above all, our customer satisfaction. If you are looking to top quality and great customer service at affordable prices, give us a call today!

"Everything went well. Nice job. Left the area clean. Very friendly."

Jim I on November 2024

Euro Plumbing, LLC, has over 9 years of experience, and is licensed. We are a family owned and operated company that prides itself on communication, punctuality, professionalism, and above all, our customer satisfaction. If you are looking to top quality and great customer service at affordable prices, give us a call today!

"Everything went well. Nice job. Left the area clean. Very friendly."

Jim I on November 2024


Avatar for Relax Plumbing LLC
Relax Plumbing LLC
12313 Crystal Downs Road
4.56(
9
)
Approved Pro
Relax Plumbing LLC
12313 Crystal Downs Road
4.56(
9
)
Approved Pro
3 years of experience
Free onsite estimate

We take great pride in providing our customers with quality work and honesty. We are a local family owned business with 15 years of experience in the field. We firmly believe in integrity and communication which shines through the craftsmanship provided.

"Very professional, timely, job well done"

Eric G on May 2025

We take great pride in providing our customers with quality work and honesty. We are a local family owned business with 15 years of experience in the field. We firmly believe in integrity and communication which shines through the craftsmanship provided.

"Very professional, timely, job well done"

Eric G on May 2025


Avatar for Absolute Electrical, Heating & Cooling, LLC
Absolute Electrical, Heating & Cooling, LLC
4920 Monaco St.
4.63(
263
)
Approved Pro
Absolute Electrical, Heating & Cooling, LLC
4920 Monaco St.
4.63(
263
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
235 local quotes requested

At Absolute Electrical Heating and Air, 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!

"Easy to work with"

Richard F on April 2025

At Absolute Electrical Heating and Air, 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!

"Easy to work with"

Richard F on April 2025


ALR Plumbing, LLC
3810 Vicksburg Terrace
5.00(
1
)
Approved Pro
ALR Plumbing, LLC
3810 Vicksburg Terrace
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

We are 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 are involved with. We are 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.

"Jacob is great with customers."

Robert x on August 2018

We are 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 are involved with. We are 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.

"Jacob is great with customers."

Robert x on August 2018


Avatar for Apple Aire
Apple Aire
4020 Youngfield St
4.81(
170
)
Approved Pro
Apple Aire
4020 Youngfield St
4.81(
170
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
242 local quotes requested

Apple Aire is well known in the area for their superior quality workmanship and commitment. Unlike typical HVAC's who simply want to install the unit and be done with it, your Apple Aire technician will diligently consider all factors, including energy efficiency and weatherization to select the most appropriate unit for your home. If you're looking for excellent customer service and an experienced, reliable team for your next HVAC installation, look no further than Apple Aire.

"Installed my ac unit, all seems to be working fine"

Daniel F on April 2025

Apple Aire is well known in the area for their superior quality workmanship and commitment. Unlike typical HVAC's who simply want to install the unit and be done with it, your Apple Aire technician will diligently consider all factors, including energy efficiency and weatherization to select the most appropriate unit for your home. If you're looking for excellent customer service and an experienced, reliable team for your next HVAC installation, look no further than Apple Aire.

"Installed my ac unit, all seems to be working fine"

Daniel F on April 2025


Avatar for SWAN Plumbing, Heating & Air of Denver
SWAN Plumbing, Heating & Air of Denver
6810 Broadway Unit N
5.00(
1
)
Approved Pro
SWAN Plumbing, Heating & Air of Denver
6810 Broadway Unit N
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 local quotes requested

Our team of master plumbing, heating and air conditioning technicians are dedicated to providing professional quality plumbing and HVAC services to residents and families throughout the Denver metro area. Our teams of highly qualified plumbers and technicians are always equipped with stocked work trucks to get the job done and resolve your issues quickly. We understand the importance of providing timely and high quality service. Being a family-owned and operated business, we're also mindful of the fact that it's taking place within your home, and take the following steps to respect your home while we're on-site

"Did the job right!"

John D on September 2023

Our team of master plumbing, heating and air conditioning technicians are dedicated to providing professional quality plumbing and HVAC services to residents and families throughout the Denver metro area. Our teams of highly qualified plumbers and technicians are always equipped with stocked work trucks to get the job done and resolve your issues quickly. We understand the importance of providing timely and high quality service. Being a family-owned and operated business, we're also mindful of the fact that it's taking place within your home, and take the following steps to respect your home while we're on-site

"Did the job right!"

John D on September 2023


Avatar for American Plumbing & Sewer, LLC
American Plumbing & Sewer, LLC
2086 Bayfront Dr
4.97(
54
)
Approved Pro
American Plumbing & Sewer, LLC
2086 Bayfront Dr
4.97(
54
)
Approved Pro
Customers say: True professional
19 local quotes requested
5 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.

"Lanney and his son were quick and efficient in replacing my water heater. Lanney is very knowledgeable and answered all my questions. They were pleasant and courteous. I would hire them again, and recommend them to others."

Karen C on February 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.

"Lanney and his son were quick and efficient in replacing my water heater. Lanney is very knowledgeable and answered all my questions. They were pleasant and courteous. I would hire them again, and recommend them to others."

Karen C on February 2025

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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.

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