Water Heater Installations in Upper Marlboro, MD: Real Jobs From Our Crew
Photos from recent gas and electric water heater installs in Upper Marlboro, our home base, and what goes into each one.

In this guide
Upper Marlboro is our home base, so we install water heaters here every week, both gas and electric. Every install includes checking the venting, gas or electrical supply and water pressure, correct new connections and shut-offs, a properly piped relief valve, an expansion tank where the plumbing requires one, a permit and inspection, and full testing before we leave.
Essential Plumbing and Electric is based in Upper Marlboro, so this is where we install more water heaters than anywhere else. Homes here range from 1960s to 1980s houses in Kettering, Largo and Marlton to newer builds in Westphalia and Beech Tree, and each brings its own setup. Here are a few recent installs from around town.
Recent installs in Upper Marlboro



What goes into every install
- Check the setup. Size, fuel type, venting, gas line or electrical circuit, shut-off valves and household water pressure.
- Permit. We pull the permit; in Prince George’s County, plumbing and gas permits go through WSSC Water.
- Remove the old heater safely and haul it away.
- Install with correct connections: new shut-off and connectors where needed, the gas or electrical hookup, and the vent connection on gas models.
- Add the safety items: a correctly piped relief valve discharge line and an expansion tank where the plumbing is a closed system.
- Fill, test and walk you through it: leak checks, burner or element operation, venting on gas models, and where your shut-offs are.

Gas or electric in Upper Marlboro?
Both are common here. Homes with natural gas usually stay with gas for faster recovery, while all-electric homes often choose an electric tank or a much more efficient heat pump water heater. If you’re weighing options, read tankless vs. tank water heaters and whether your panel can handle electric tankless. Many Upper Marlboro homes also have a pressure reducing valve on the main line, which is why expansion tanks come up so often; see do you need an expansion tank?
Need a new water heater in Upper Marlboro?
Upper Marlboro is our home base, so we’re usually close by. We’ll give you a free, upfront quote and can often install a new water heater the same day.
See everything we do locally on our Upper Marlboro plumbing and electrical services page.
Key takeaways
- Every install starts with checking venting, power or gas, and water pressure.
- Permits for plumbing and gas work in Prince George’s County go through WSSC Water.
- Expansion tanks are common because many local homes have pressure reducing valves.
- The heater should be filled completely and tested before we leave.
- Upper Marlboro is our home base, so same-day service is often possible.
Frequently asked questions
Do you install water heaters in all of Upper Marlboro?
Yes, including Kettering, Largo, Marlton, Westphalia, Brock Hall, Rosaryville, Croom and the rest of 20772 and 20774.
Can you install a water heater the same day in Upper Marlboro?
Often, yes. Upper Marlboro is our home base, so standard gas and electric tank replacements can usually be done the same day.
Do I need a permit for a water heater in Upper Marlboro?
Water heater replacements typically require a permit. In Prince George’s County, plumbing and gas permits go through WSSC Water, and we handle it for you.
Do you install heat pump water heaters?
Yes. We install gas, electric, heat pump and tankless water heaters, including any electrical work they need.
We install water heaters across the DMV
Licensed plumbers and electricians on call 24/7 in these communities and across the DMV.
Related water heaters guides
Rather have a pro handle it?
Emergencies: call now and we’ll be on the way. For everything else, send your details and we’ll call you right back.
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