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TRUSTED BY ROCKLIN, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon192
    Verified water heater services reviews

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

Avatar for HOTCO The Hot Water Heater Company, Inc.
HOTCO The Hot Water Heater Company, Inc.
5.0(
92
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+3 more

Serving Rocklin, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Doug examined the water heater. Described the issue clearly. Recommended a replacement since a repair was next to impossible (leaking from bottom of water heater). Estimate given (if a replacement was needed, prior to work being done) was for all work and parts so nothing else was added on. Work was done in a few hours on the day of the call. Just great! Personable and friendly to interact with. Definitely would hire again if needed."
Bradford White
50 Gallon Bradford White
New 50 Gallon
Old Rheem Tank
Bradford White Electric

+6

Response time5 hrs
13 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Longo Plumbing
Longo Plumbing
4.9(
53
)
Water Heater - Repair or ServiceTankless Water Heater - RepairTankless Water Heater - Repair - For Business+1 more

Serving Rocklin, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"Patrick and his crew did a great job for us. We had several plumbing issues and decided to replace all the water lines in our 60 year old forever home. In diagnosing a knocking sound Patrick discovered a builder defect and our gas line was compromised in several places. He and his crew replaced the water lines and gas line, replaced our 15 year old water heater that was failing and completed all the jobs on our repair list (replumb refrigerator, add pressure regulator to the main supply line). He did such a great job rebuilding the plumbing for the laundry area, basically rebuilding the wall, and I never thought it would look so good in my lifetime! They protected our floors and respected our property and wasted no time completing a large job. We have never seen any contractor clean up after a job as thoroughly as they did. Longo Plumbing is our plumber anytime we need one and you won't be sorry you hired them."
Response time6 hrs
Response rate98%
42 neighbors recently requested a quote
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Water Heaters FAQs, answered by experts

The good news is that most home warranty plans cover hot water heaters, regardless of whether you have a tank or a tankless model. Your hot water heater should be covered by your home warranty because it's considered an essential home appliance.

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

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.

Any item that can hold on to moisture and encourage mold growth should be discarded and replaced following water damage. Upholstered items, such as armchairs and couches, and soft items, such as mattresses, usually must be thrown away once they've taken on a lot of water. Soft furniture is difficult to dry out, creating an inviting environment for mold.

You may also need to replace hardwood furniture following water damage if you're unable to fully dry it out. If you have appliances and electronics that have been fully submerged in water, particularly sewage, you'll need to replace those, too.

When the water expands in a hot water heater, it puts pressure on your hot water pipes and can cause leaks or a rupture in the hot water tank under certain conditions. Pipes or water heaters may split due to the pressure where there is a backflow preventer that prevents the hot water heater from diffusing pressure by releasing water back to the public water line.

In these scenarios, a hot water heater expansion tank provides a place for the hot water heater to relieve pressure and prevent bursts and leaks.

The Rocklin, CA homeowners’ guide to water heater services

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