6 of Loudoun County's 61 plumbers and heating and cooling contractors are listed for drain cleaning.
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A contractor is listed for a service when its owner picked the service, when its Google Business Profile category names it, or when its business name does. Ranked as on the county page: verified owner, then a Google rating of 4.0 or higher, then review count, then fleet size. How ranking works
Ranges are national; ask contractors near you.
Figures checked September 2026.
Virginia licenses plumbing businesses through its Board for Contractors and plumbers as tradesmen.1, 2 Heating and cooling businesses in Virginia hold the same board's contractor license with an HVAC specialty.1, 2, 3 State code in Virginia requires a permit for mechanical equipment, but replacing appliances that aren't fueled by gas or oil in a house is exempt.4
