Unsupported Expansion Tank
The expansion tank is not mounted with proper supports.
CommonPlan for itWater heater
Why it matters
An unsupported expansion tank on a water heater can lead to premature failure of the tank due to stress on its connections and mounting points.
How common is it?
Found in 28% of the homes HomeCloud evaluated, Sep 2025 to Oct 2026.
Counted by the finding's name on HomeCloud reports, so the true number can be a little higher.
How soon to fix it
HomeCloud reports list this as something to plan for rather than an emergency.
More plumbing resources
What kind of pipes do I have?How to tell copper, PEX, CPVC, polybutylene, galvanized steel and cast iron pipes apart, and which ones to plan to replace.Tank vs. tankless water heatersHow tank, tankless and heat pump water heaters work, gas vs. electric, sizing one for your household, and the brands you'll see most.How to find and use your water shutoffWhere the main water shutoff and the valves under sinks and toilets usually are, how to close them in a leak, and simple upkeep like flushing the water heater.
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