
Learn about the different factors that go into water heater gas valve replacement costs to see if you should DIY the project or call a pro.

*The Angi rating for Water Heater Service companies in Dauphin, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
*The HomeAdvisor rating for Water Heater Service companies in Dauphin, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
Last update on October 27, 2025
From average costs to expert advice, get all the answers you need to get your job done.

Learn about the different factors that go into water heater gas valve replacement costs to see if you should DIY the project or call a pro.

Wondering how much a water heater expansion tank costs? Use this cost guide to get an accurate estimate and learn how to choose the right one for your home.

A water heater flush costs $160 on average but can vary based on the unit size, type, labor, location, and more. Keep reading to learn how much you could pay.

Use this guide on how to turn off your water heater’s gas supply if you run into an emergency or want to conserve gas while you’re on vacation.

Discover all the tankless water heater pros and cons you should know. Learn how these energy-efficient systems can save you money and space while considering their limitations.

Not sure who fixes tankless water heaters? In most cases, you’ll want to call a plumber.