About Us
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Who We Are
Sigma Plumbing Mechanical Contractors is a family owned and operated small business in the DC area. We have been working in the plumbing industry for over 50 years from our beginnings in Kalamata, Greece, to the 3rd Generation running operations in our Washington D.C. location today.
We are proud to not only bring excellent customer service and professional work to every project, but also a level of care and attention to detail that is unmatched. Our staff is available to you 24 hours a day, 7 days a week.