Plumbers in Gainesville, VA

From railroad crossroads to growth hub

Gainesville began as a railroad and farm crossroads where I-66 meets U.S. Route 29 (Lee Highway), and it has grown fast since the mid-1990s into newer subdivisions and large shopping centers. The census-designated place had about 18,112 residents in 2020 and sits about 33 miles from downtown Washington. The Gainesville interchange, neighborhoods such as Crossroads and The Settlement, Jiffy Lube Live and Mount Pleasant Baptist Church are local reference points.

Very new housing

Only about 4 percent of homes in ZIP 20155 were built before 1980, and the 2000s were the biggest building decade. Plumbing calls here look like what you would expect in houses built within the last few decades: first replacement water heaters, tankless upgrades, PEX fitting and manifold leaks, fill valves and cartridges, garbage disposals, sump pumps in finished basements, and outdoor spigots that freeze when someone forgets the hose.

Prince William Water

Prince William Water supplies water and wastewater service, and its planning materials note that most of its demand in the county's rural area falls within Gainesville-Wellington. It buys most of its water from Fairfax Water, which treats Occoquan Reservoir and Potomac River water; some western-county customers may receive water treated at the City of Manassas plant from Lake Manassas. Prince William Water lists its East and West systems as moderately hard, 3.5 to 7.0 grains per gallon (60 to 120 mg/L), which is mild for scale. Its annual water quality reports cover each of its systems.

Lines and connections on private property are the owner's responsibility; the meter belongs to Prince William Water, and the customer is responsible for all water passing through it, so a running toilet or hidden leak shows up on the bill. Customer service is (703) 335-7950 on weekdays, and emergency dispatch for outages and main breaks is (703) 335-7990. Western Prince William wastewater is treated at the Upper Occoquan Service Authority plant. For any property on the rural fringe, ask the utility whether it serves your address.

Permits

Prince William County Development Services' Building Development Division issues building and trade permits for unincorporated areas like Gainesville, and also for the towns of Haymarket, Occoquan and Quantico. A water heater swap, gas line extension or new fixture location may need a county permit, and the plumber you're connected with can tell you which.

Gas

Prince William County says Columbia Gas of Virginia and Washington Gas both run distribution systems in the county, so look at your gas bill to see which serves you. If you smell gas, leave the house first, then call 911 and your gas utility's emergency number from outside.

Gainesville versus the District

DC homes tend to be decades older and served by DC Water and Washington Gas. Gainesville homes are among the newest in the region, on Prince William Water with county permits. Call with your neighborhood and the issue, and you will be connected with an independent plumber who agrees on price and timing with you.