Water heater replacement in Woodbridge, VA
Woodbridge and nearby communities such as Lake Ridge sit in Prince William County, not Fairfax County. The work is the same kind of residential replacement; the permit office is not. Fairfax Water Heaters covers Woodbridge as part of this Northern Virginia set.
Prince William County permits
The county’s official Do I Need a Permit? page is unusually clear:
- Always required: replacing gas or oil appliances, water heaters included.
- Not required: replacing an electrical water heater with the same size heater in the same location.
The City of Manassas and the City of Manassas Park issue their own permits; those cities are outside this launch coverage. The county also treats apartment buildings and condos as commercial projects, which is a different path than a one- or two-family home or a townhouse. If you are in a condo building, say so on the form so we do not plan a residential trade permit that will not apply. More: permits guide.
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Housing in this part of the county
Woodbridge and Lake Ridge have a large share of 1970s–1990s single-family houses and townhome communities. Tanks are often in a garage, a basement, or a townhome closet — not in a mid-rise utility room. Gas service is common. Where a pressure-reducing valve is on the incoming line, an expansion tank should be in the quote, the same as elsewhere in the metro. What a replacement includes.
Water here is not Fairfax Water in every neighborhood (Prince William service territories differ). Hardness still matters for tankless maintenance; we will not cite Fairfax Water’s 5–10 gpg figure as if it were measured at your Woodbridge tap.

Nearby areas
- Fairfax, VA
City and Fairfax County neighborhoods - Arlington
Homes, townhouses, and condos - Alexandria
City of Alexandria and county addresses - Springfield
Franconia and Kingstowne - Reston and Herndon
Western Fairfax County
FAQ
Is Woodbridge covered?
Yes.
Do I need a permit for a gas tank swap?
Yes. Prince William County lists replacing gas water heaters under “permits always required.”