12 of Delaware County's 79 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.
Pennsylvania has no state plumbing license, and some municipalities, such as Philadelphia, license plumbers.1, 2, 3 Most construction contractors in Pennsylvania have no state license, and home improvement contractors register with the Attorney General.1, 4 Whether replacing equipment in a Pennsylvania house needs a permit comes down to the municipality.5, 6
