Water Heaters · Gaithersburg, MD
Water Heater Replacement in Gaithersburg, MD
Census data for the Gaithersburg ZIP codes we cover show 43% of homes heating with utility gas and 49% with electricity, so electric tank water heaters are the most common replacement here. Most tanks last about 8 to 12 years.
- Same-day service when a plumber is available
- 9 ZIP codes covered
- Quote before work
Water heaters in Gaithersburg homes
Utility gas heats 43%, close to the Maryland figure of 43% of homes. That ranks 11th lowest of the 34 Maryland cities we profile. Water heaters usually use the same fuel as the furnace, which decides venting and gas line work on a replacement.
With 31% of homes built before 1980, many water heaters sit in tight basements or closets that were sized for smaller tanks, so measure before ordering a replacement.
In Maryland: Older rowhouses in Baltimore and older suburbs have cast iron drains, galvanized lines and lead service lines.
Permits
Most cities require a permit for a water heater replacement, and the plumber normally pulls it.
Gaithersburg figures behind this page
- Heat with utility gas
- 43%
- Heat with electricity
- 49%
- Heat with fuel oil
- 4%
- Built 2000 or later
- 22%
What to do first
- Shut the cold inlet valve and the gas or breaker if it's leaking
- Flush a few gallons from the drain valve to check for sediment
What affects the price
- Gas vs. electric
- Capacity (40, 50 or 75 gallons)
- Location: garage, closet or attic
- Code upgrades needed (expansion tank, pan, venting)
The plumber quotes on site, before any work starts.
How the job works
Signs, the step-by-step process, cost factors and what you can safely do yourself are on our water heater replacement guide. For the rest of Gaithersburg's plumbing picture, see plumbers in Gaithersburg and repiping in Gaithersburg.
Water Heater Replacement in Gaithersburg: FAQ
Should I replace my Gaithersburg water heater with the same fuel?
Usually, because switching fuels means new gas, venting or electrical work. In Gaithersburg, where 49% of homes use electric heat, a like-for-like electric tank is the simplest swap.
Nearby
ZIP codes covered in Gaithersburg: 20877, 20878, 20879, 20882, 20883, 20884, 20885, 20898, 20899
Figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Gaithersburg; state comparisons use the Maryland statewide estimate.
Need water heater replacement in Gaithersburg?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.