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TRUSTED BY FREDERICK, CO HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon75
    Verified water heater services reviews

Verified Reviews for Water Heater Service pros in Frederick, CO

*The Angi rating for Water Heater Service companies in Frederick, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

*The HomeAdvisor rating for Water Heater Service companies in Frederick, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

Last update on April 28, 2026

Find Water heater pros in Frederick

Avatar for Vogels Plumbing, LLC
Vogels Plumbing, LLC
5.0(
45
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Vogels Plumbing, LLC brings an unmatched commitment to excellence to your plumbing projects. We have over 30 years experience delivering unsurpassed professionalism, expertise and value. We take pride in providing our customers with personalized customer service, the highest industry standards, and top quality workmanship. References available upon request. Give us a call today!

Vogels Plumbing, LLC
26 neighbors recently requested a quote
Recommended by70%of homeowners
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Avatar for Euro Plumbing, LLC
Euro Plumbing, LLC
4.9(
413
)

Serving Frederick, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"It was a pleasure to have experienced and knowledgeable installers in our home to replace a hot water heater."
Water heater
Water heater
Water heater
Water heater
Water heater

+36

Response time3 hrs
167 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for American Plumbing & Sewer LLC
American Plumbing & Sewer LLC
4.9(
132
)

Serving Frederick, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"Lanny and his son were fantastic! They replaced my water heater quickly and gave me advice to save me money. They were courteous and on time and did great work. Water heater is perfect and works great! Highly recommend them..."
Response time6 hrs
Response rate99%
34 neighbors recently requested a quote
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Avatar for Big Apple Plumbing, LLC
Big Apple Plumbing, LLC
4.8(
104
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Able to replace my water heater the same day - on a Saturday. Timely, courteous, and knowledgeable. Took old water heater away and left no trash behind. Brought the equipment up to code and replaced lines / parts as needed. Jason was great. I will call Big Apple again."
New Tankless Water Heater Installations
Sewer Main
Water Filtration
Before picture old 100 gallon water heaters
City Sewer Line

+28

100 neighbors recently requested a quote
Recommended by81%of homeowners
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Avatar for American Plumbing & Sewer LLC
American Plumbing & Sewer LLC
5.0(
50
)

Serving Frederick, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"My hot water heater stopped working and they made me top priority. They were here replacing it within 24hrs. Very professional, clean and great communication. Best price compared to other local companies hands down."
Water softener
Response time11 hrs
Response rate95%
9 neighbors recently requested a quote
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Avatar for Honest Plumbing, LLC
Honest Plumbing, LLC
4.8(
55
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"I am really pleased with Honest Plumbing. My water heater stopped working in the morning. I called Honset Plumbing and Jon ran right over to get it replaced."
Tankless
tankless
before
after
after

+26

Response time1 day
Recommended by100%of homeowners
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Avatar for Axis Plumbing & Heating LLC
Axis Plumbing & Heating LLC
4.3(
36
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2019

Credit card accepted

Offers commercial services

At Axis Plumbng & Heating, our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are known for our prompt service and superior attention to detail. Our commitment to quality is evident from the beginning to the completion of your project. We are here to serve you with the knowledge and quality you deserve and expect. Call our reputable business today; you will be pleased you did.

Gallery
Recommended by90%of homeowners
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Avatar for AAA Service Plumbing, Heating & Electric
AAA Service Plumbing, Heating & Electric
4.4(
469
)

Serving Frederick, CO and surrounding areas

Approved

In business since 1983

Free estimates

Credit card accepted

"HIGHLY RECOMMENDED!!!!! I don't want to admit this but, I hired AAA Service Plumbing for a "clogged" shower drain on the next afternoon after calling. The associate arrived a half-hour early to find my drain was closed (I closed it). He reopened it to reveal the unclogged drain. The associate did not charge me anything for the simple "fix". I highly recommend this company for any needed service even though the they only reopened up my closed drain."
My jobs
My jobs
My jobs
Boiler Install
Boiler Piping

+6

Recommended by94%of homeowners
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Showing 1-10 of 167
Water Heaters questions, answered by experts

A thermocouple is a pretty simple device. It simply tells the control valve if heat is present. Most water heaters can use a universal thermocouple, provided it's the correct length. Getting one that's long enough for your appliance is crucial for success. However, some water heater models require model-specific thermocouples, which is why it's essential to take your existing one to the store to find the right match.

Venting a gas water heater out of the roof is preferable in most cases. Heated exhaust gases naturally rise, so a vertical vent pipe is efficient. If you’re trying to vent through a pipe exiting a wall, the angle of the pipe may be more horizontal than vertical, making the venting system less effective. If you go through a wall, you may need to add a fan to ensure a successful expulsion of the gases outdoors.

In most municipalities, a license is not mandatory for water heater installation or replacement. However, we strongly recommend hiring a licensed plumber or water heater installer to handle the work. Licensed installers are far less likely to make a mistake during the installation, which means paying for the experience decreases your risk of a leak and other issues. You can use our state licensing tool to find out if a contractor you’re considering in your area holds a plumber’s license.

While not all homes require a hot water heater expansion tank, they are necessary in most newer homes and are often mandated by local building codes. Codes typically require an expansion tank if your plumbing system is a 'closed-loop' system, which often includes a backflow preventer or pressure regulator on the main water line. Some municipalities have specific requirements. Installing an expansion tank on a closed system is crucial, as it prevents excess pressure that can damage your water heater and other appliances, potentially shortening their lifespan. However, tankless water heaters do not require an expansion tank.

Most standard residential water heaters, which are typically around 40 gallons and use 240 volts and between 3,500 and 5,500 watts, require a 30-amp, two-pole circuit breaker. For smaller, point-of-use water heaters using 120 volts and between 1,500 and 3,000 watts, a 30-amp breaker is also often adequate. However, some models may have different needs; units that use more watts than average may require a 40-amp breaker, while smaller units might only need a 20-amp breaker. Newer, tankless, or more energy-efficient models can also require a higher amperage. Having the correct breaker size is crucial for safe and efficient operation, so it's best to consult a licensed electrician to determine the specific needs of your water heater.

The Frederick, CO homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.

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