ADVANCED DRAIN CLEANING INC DBA H&K PLUMBING

Permits are pulled before work begins and then inspected by the county. A contractor who files them is working inside a system with an inspector in it, which is what unpermitted work avoids.

What the permits show

Of the permits we observed, 80% are plumbing work.

Plumbing · 4Pool & Spa · 1

Recent work

• Pool install
  May 2026 · Howard County

  Woodland village rec center/replaced 2 inch rpz device at poolhouse. rpz was install inside poolhouse (installed (t) zu…

• Plumbing work
  July 2025 · Howard County

  2” DC passed test Chk1 closed tight 1.5psid Chk2 closed tight 2psid, 3/4” DC passed test Chk1 closed tight 2.5psid Chk2…

• Plumbing replacement
  June 2025 · Howard County

  Dog park/replaced old 3/4" rpz with new 3/4" rpz in hotbox located at the dog park. hot boxes are locked with combo loc…

Licensing

• Master Plumber and Gas Fitter Issued by Maryland Board of Plumbing. Verify

Towns we observed them working in

We hold permit records for Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC. Work anywhere else is not missing from this contractor's record, it is outside what we cover.

What this page is, and is not

• Howard County: 5 permits observed, from records beginning August 2021.

This page shows permits we observed in county records. Our observation is not complete: work done before those dates, in counties we do not cover, or on filings that name no contractor does not appear here. A contractor's real work is almost always greater than what we observed, and absence of a permit on this page does not mean the work was not done or not permitted. We currently hold records for Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC; see permit coverage for what that includes.

Common questions

Does a permit record mean this contractor is licensed?

County permit records list ADVANCED DRAIN CLEANING INC DBA H&K PLUMBING under Master Plumber and Gas Fitter. Check current standing with the issuing body before hiring.

Why do some contractors show more permits than others?

Counties began publishing at different times and describe contractors differently, so the number reflects what we observed as much as what the contractor did. It is not a ranking.

What should I still ask for?

Proof of insurance, a written contract, and the license number for the trade being performed. A permit record is a starting point, not a substitute for either.

Other Plumbing contractors in Howard County