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TRUSTED BY ALTADENA, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon103
    Verified water heater services reviews

Top-Rated Water heater pros in Altadena - Updated Nov 2026

Avatar for THE Water Heater Company
THE Water Heater Company
4.9(
134
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Altadena, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"We had our water heater replaced by The Water Heater Company and the service was excellent from start to finish. The technician, Mike P., was professional, on time, and extremely knowledgeable. He explained everything clearly, completed the installation efficiently, and made sure the area was clean before leaving. My new water heater is working great. We really appreciate the quality of work and the attention to detail. We highly recommend The Water Heater Company especially if you want a smooth, stress-free water heater replacement done right the first time."
Van (Side view)
TWHC Vans
TWHC Vans
TWHC Vans
TWHC Vans

+83

Response time7 hrs
Response rate92%
Recommended by84%of homeowners
Avatar for Complete Plumbing & Rooter
Complete Plumbing & Rooter
4.9(
30
)
Water Heater - Install or ReplaceWater Heater - Install or Replace - For Business

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Credit card accepted

"It was a pleasure having them replace our hot water heater. They were very professional and they made sure the area was clean when they finished. More importantly I will use them again if we have a plumbing problem."
Response time9 hrs
11 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for Service Champions Plumbing, Heating & AC
Service Champions Plumbing, Heating & AC
4.4(
50
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Kayvan was a wonderful service tech! He was on time and professionally checked out the water heater and the HVAC system. He was so polite and friendly. He explained the need for a new filter in the heating unit and showed me photos of the unit located in the attic. He also offered to do a friendly deed for free, which I greatly appreciated, He’s a great asset to Service Champions!"
Area Drain Cleaning
Plumbing
Plumbing
Garbage Disposal
Drain Cleaning

+13

Response time4 hrs
Recommended by79%of homeowners
Avatar for Service All Stars Heating and Air Comfort
Service All Stars Heating and Air Comfort
4.4(
139
)
Water Heater - Repair or ServiceWater Heater - Install or ReplaceTankless Water Heater - Install+5 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"All the people sent to my home were professional, friendly and efficient. Eric, the repair tech, had to give me the bad news that my furnace was not repairable. He listened to my requirements and desires for the replacement and gave me a solution that matched at a reasonable cost. Novlin and Brandon came the next day to install the unit. They were careful of my home and floors. They installed the new furnace quickly and efficiently. They cleaned up after themselves very well. Before leaving, they showed me pictures of the work in the areas that I couldn't easily get to like the attic and roof. I'm very happy with the whole project"
Ductless Systems
Teamwork!
Delivery Truck
Job Done!
Another One!

+2

Response time1 day
Response rate98%
9 neighbors recently requested a quote
Avatar for Good Day Plumbing Service
Good Day Plumbing Service
5.0(
12
)
Water Heater - Install or Replace

Serving Altadena, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Good Day Plumbing has done multiple projects for us. They have installed a tankless water heater, a water softener, and also replaced a backflow. Good Day was competitive with their quotes and worked around our schedule. All of the work was done in a clean, professional manner and they even helped us out in understanding the operation and maintenance that would be required for the water heater and softener. We would not hesitate to call them out for our next project or unexpected repair. Itâ s good to have a company like this you can trust to do the work right the first time and treat you in an honest and fair manner."
water serive
water serive
water service
water service
water service repair

+4

Response time3 hrs
Recommended by100%of homeowners
Avatar for HARMONY ELECTRIC PLUMBING & AIR INC
HARMONY ELECTRIC PLUMBING & AIR INC
4.8(
36
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Repair+4 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"They called us quickly and got a plumber out within a few days. Super thorough - tested all pipes and water sources to diagnose the problem. They were able to perform maintenance on most bathrooms the same day and improve the water temperature in our showers. Gave helpful, non-biased advice on potential further plumbing improvements. We will likely call this company again for any and all future plumbing needs."
784 neighbors recently requested a quote
Recommended by38%of homeowners
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Water Heaters FAQs, answered by experts

Unless you have previous plumbing experience or extensive experience with water heaters, you should avoid replacing your electric water heater yourself. This process involves disconnecting wiring and parts from the old water heater and reinstalling them onto the new one, among other difficult tasks. This job is best left to the pros to make sure that everything is connected correctly to avoid serious leaks or malfunctions.

No, you’ll need to drain the tank before changing a water heater element, as the water heater element sticks through the side of the tank and uses a gasket to prevent water from pouring out. However, you don’t always need to drain it completely. If you’re only replacing the upper heating element, you can drain the tank until the water line is below the element. If you’re replacing the lower element, you’ll need to drain the whole thing.

If you're replacing a broken water heater, now is a great time to make sure you're selecting a unit that has the right capacity for your household. According to the U.S. Department of Energy, a small 50-gallon to 60-gallon tank is sufficient for households with one to three people. A medium-sized 80-gallon tank is considered ideal for three to four people. A larger tank may be needed if your household has four to six people.

The lifespan of a water heater depends on its type, usage, and maintenance schedule. Traditional tank-style water heaters typically last between 8 and 12 years, though the range can be as wide as 6 to 15 years. Within this category, gas models often last 8-12 years, while electric models may last 10-15 years. In contrast, tankless water heaters have a significantly longer lifespan, often lasting up to 20 years or more. Factors like heavy usage, hard water, and sediment buildup can shorten a unit's life. To extend its lifespan, it is crucial to perform regular maintenance, such as flushing the tank annually and scheduling professional inspections. If your unit is over a decade old and shows signs of rust, leaks, strange noises, or inconsistent heating, it is likely time for a replacement.

The average cost to install a new water heater is approximately $1,300, with a typical price range between $880 and $1,800. The final cost depends on several factors, including the type and size of the unit, its location and accessibility, and the amount of labor required. For example, installing a unit in a tight space like a crawl space can increase labor costs. The type of water heater significantly impacts the price: while a conventional gas heater might cost less than $1,000, tankless models can cost around $2,600 to install (and up to $3,500), and solar heaters can cost upwards of $3,700. Other factors that can affect the total price include the fuel type, vent system requirements, permits, and whether any additional plumbing work or repairs from previous water heater damage are needed.

The Altadena, CA homeowners’ guide to water heater services

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