What does a water heater expansion tank do?

Fri, 05 Jun 2026 01:10:38 +0200

Wondering what a water heater expansion tank does and whether your home needs one? In this video, Jim Cunningham, owner of Trusted Plumbing and Heating, explains why an expansion tank is important for many modern plumbing systems.

As water heats up inside your water heater, it expands. In a closed plumbing system, that extra volume needs somewhere to go. An expansion tank helps relieve pressure, protect your water heater, and reduce strain on the rest of your plumbing system.

If you are having problems with your water heater, noticing pressure issues, or are unsure whether you need an expansion tank, Trusted Plumbing and Heating can help. Our team provides expert plumbing, water heater, heating, installation, repair, and maintenance services.

Read the full blog here: https://www.trustedplumbinghea....ting.com/what-does-a

Contact Trusted Plumbing and Heating today:
🌐 trustedplumbingheating.com 📞 (206) 737 7379

Trusted Plumbing and Heating is here to help keep your home plumbing and heating systems working safely and reliably.