Top-rated water heater repair or service pros.

Get matched with top water heater repair or service pros in Longmont, CO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Water heater repair or service pros in Longmont

Avatar for Big Apple Plumbing, LLC
Big Apple Plumbing, LLC
4.9(
91
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"The tech, Alex, arrived on time and despite fighting with a 60 yr old faucet was able to complete the replacement in a very timely manner. Alex is professional and innovative, I recommend him highly this is the second time he has rescued me from plumbing h***."
New Tankless Water Heater Installations
Sewer Main
Water Filtration
Before picture old 100 gallon water heaters
City Sewer Line

+28

36 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Heart Heating, Cooling, Plumbing & Electric
Heart Heating, Cooling, Plumbing & Electric
4.9(
77
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Excellent...we had some additional issues related to water pressure regulator, piping, etc. The situation happened on the weekend and we had hot water running by Monday afternoon. An EXTREMELY short time compared to our last water heater issue. Highly recommend Heart and will use them from now on."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

23 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Rooter Guy, LLC
Rooter Guy, LLC
4.7(
2,759
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

"I got a top of the line water and over all instalation was the less than 4 other estimates And iget service on the water heater for 10 years amd it has a 10 year warranty The installer Nico had 30 years of experience Exclent conpany."
sewer cleaning
1075 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Jim Needham Heating Cooling Plumbing & Drain
Jim Needham Heating Cooling Plumbing & Drain
4.9(
61
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"We had the unfortunate incident of having a water heater break down in the winter. Unlike other places that were quick to diagnose that I just needed a new water heater just by talking to me over the phone, Jim Needham Plumbing sent in a professional. Tyson, the tech that was sent out, was by far the definition of professional. Iâ ve had techs come out that seemed professional but then just left more of a mess than when they came in. Tyson diagnosed the issues and not only gave me multiple scenarios I could choose from but made me comfortable in my decision. As soon as I made a decision and asked about next steps, he not only told me every step but accurately broke it down to how much time it would take. I was worried because if he missed his projected window I would not make my virtual meeting for work. He not only completed on time, he explained everything to my fiancée and she noted how meticulous and careful he was in our house and with the disposal of the old water heater plus the clean installation of the new one. In our next home project you bet we will be calling back to have them continue their level of experience and professionalism."
After
Furnace
Outdoor a/c (condensing) unit
Indoor furnace
Outdoor a/c (condensing) unit

+1

Response time2 days
15 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for 1st Action Plumbing Heating and Air, Inc.
1st Action Plumbing Heating and Air, Inc.
4.8(
133
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"They installed a hot water heater in less than optimal conditions (a water closet with outdoor access only) on a very cold windy day. The plumbers were quick and efficient. They exhibited a craftmanship we seem to be losing these days."
Navien Tankless
Lennox EL296V
Response time5 hrs
7 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Applewood Plumbing, Heating & Electric
Applewood Plumbing, Heating & Electric
4.9(
575
)

Serving Longmont, CO and surrounding areas

Approved

In business since 1973

Free estimates

Warranties offered

"Excellent repair service, polite & efficient technician. Phone service was prompt & courteous. Applewood is now my plumbing, heating, AC company!"
Response time9 hrs
Response rate94%
215 neighbors recently requested a quote
Avatar for Limelight Services LLC
Limelight Services LLC
4.8(
17
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Tony did a great job replacing my broken 50 gallon self venting hot water heater. It is in a difficult space to maneuver getting the old one out and the new one in. He did a great job updating what needed to be done (in my old 1910 home so there is always something!) and I feel very confident in their work. Limelight is my go to place and am so glad I found them!"
Safety first!  Only hire companies that look out for the safety of their workforce!
We love seeing a new furnace installed, it means years of comfort and reliability to come!
LED tape inside and under cabinets
We own our excavation equipment, so we can be there for repairs, same day!  There is no time to waste when the waste won't flow.
Check out this beautiful spring view from a customer's home in SW Boulder, CO.  We will take care of everything you need inside and outside of your house, plumbing, HVAC, or electrical related!

+38

Response time1 day
24 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Tipping Hat Plumbing, Heating & Electric
Tipping Hat Plumbing, Heating & Electric
4.4(
91
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2006

Emergency services offered

Warranties offered

"Tipping hat has talented employees that do safe, clean, and complete work! I highly recommend them! We are no longer cold in our house thanks to Mark J, and service pros Jeremy D and David B. Mark J. the supervisor on our furnace installation project was the first person we met from Tipping Hat. He is kind, understanding and respectful. He took time to thoroughly examine our complicated and difficult heating situation and was able to explain what needed to be done and why. All of our questions were promptly answered, he was always available for a phone call and put extra effort into creating a plan and setting up a team to get started on our project right away. Mark was considerate of our feelings, always reassuring us and promptly addressing all of our concerns. Jeremy D. Tipping Hat's Service Pro, provided extraordinary service during the installation of our new furnace! He is punctual, courteous, professional and knowledgeable. We were comfortable with him in our home, as he took great care installing our new thermostat and kindly showed us how to use it. Jeremy was very patient and took time to answer all of our questions. He went above and beyond to ensure that we received exactly what we needed AND he saw to it that the work was up to code and done properly! We are so appreciative of his compassionate understanding of our situation and his prompt completion of a large, heavy duty job that required hours of hard labor. Tipping Hat's Service Pro, David B. was able to complete work on the installation of our furnace in some really tight spaces. He had to deal with a tiny, dirt crawl space underneath the house and was able to re-attach ducts to the vents in our home. He was positive, pleasant and hard working. I feel confident referring others to Jeremy D, David B, and their Supervisor, Mark J."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time1 day
2 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Compass Plumbing
Compass Plumbing
5.0(
30
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"Jay did an outstanding job installing a new hot water heater. He did a thorough job and made sure everything was in order. I would highly recommend Jay and his company."
Water Heating Systems
Navien Boiler
Response time2 hrs
Response rate96%
24 neighbors recently requested a quote
Showing 1-10 of 25
FAQs for water heater repair or service projects in Longmont, CO

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Longmont, CO homeowners’ guide to water heater repair or services

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