Oriole Basement Waterproofers is a contractor based in Randallstown, Maryland, specializing in advanced waterproofing systems for both residential and commercial properties. Their services include sump pump battery back-up systems, stairwell and window well drain installations, and they offer a lifetime transferable guarantee. The company is licensed, bonded, and insured, and it provides free FHA-VA certification inspection certificates with every waterproofing job. They have a recent online presence as of 2026.

Updated Aug 2026

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📞 410-496-4137

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