The City of Manassas runs its own water, sewer and electric utilities, gas comes from Columbia Gas of Virginia rather than Washington Gas, and permits come from the City's Development Services. That makes Manassas different from the county around it. Call the number on this page to be connected with a local plumber in Manassas.

What happens when you call
Tell us what kind of building it is, what's failing and whether you can keep operating. You'll be connected with an independent local plumber who takes commercial work in Manassas, from Old Town storefronts and restaurants to offices, warehouses and shops along Route 28 and near Manassas Regional Airport. Before anything starts, ask how the job will be priced and whether it can be done outside business hours.
For a water main break or a sewer problem that may be on the City's side, the City's after-hours emergency line is 703-257-8353; Water and Sewer customer service is 703-257-8219 on weekdays.
Cost factors
- Building size, number of restrooms and number of tenants
- Gas piping work and the permits that go with it
- Camera inspection or jetting on long drain runs
- Access through slab floors or finished ceilings
- After-hours or weekend scheduling
- Backflow repairs and the retest that follows
Manassas conditions
City water comes mainly from Lake Manassas on Broad Run, treated at the City's plant, with supplemental water from Prince William Water during peak demand. It's disinfected with chlorine and is softer than its neighbors: the City reports total hardness of 47 ppm. Scale is less of a driver here than in most of Northern Virginia, though water heaters and ice machines still need regular service. The City has completed a service line material inventory that owners can look up online.
Manassas Water and Sewer runs a cross-connection program, so ask the City what it requires for the backflow assemblies on your property. Permits come from Development Services at City Hall, 9027 Center Street (703-257-8200), with a self-service online portal. Some Manassas mailing addresses lie outside city limits in Prince William County; those buildings get permits from the County and may have a different water provider.
Gas is Columbia Gas of Virginia. If staff smell gas, get everyone outside, then call 911 and Columbia Gas at 1-800-544-5606. The City's after-hours line handles electric, water and sewer, not gas.
Checklist before the plumber arrives
- Confirm the address is inside city limits
- Locate the main water shutoff and gas meter
- Gather recent backflow test records
- Clear a path to the mechanical room and cleanouts
- Note when the problem started and which fixtures are affected
Commercial Plumbing questions in Manassas
What should employees do if they notice a gas odor?
What does the local water do to commercial water heaters and kitchen equipment?
Does a local mailing address mean the town or the county handles our permits?
How often must a business's backflow assemblies be tested in this area?
More plumbing services in Manassas
Commercial Plumbing nearby
Helpful guides
Sources
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