O&apos;Connor Plumbing | EZlocal.com Business Listing#ezptO&apos;Connor Plumbing<p><strong>O&apos;Connor Plumbing</strong><br />9121 Baltimore Road<br />Frederick, MD 21704<br />(301) 540-5050<br /><a href="http://ezlocal.com/md/frederick/plumber/097745728">ezlocal.com/MD/Frederick/Plumber/097745728</a></p><div>O&apos;Connor Plumbing was established in 1949. What started as a small family business has blossomed into one of the most trusted plumbing companies in the D.C. area. Although we have grown much larger and are now able to help more customers than ever before, we are still a family-owned and operated business with the same values that made us successful over 70 years ago.</div>-77.2701274,39.1727859,0