KELLER BROTHERS INC

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, 44% are plumbing work.

Plumbing 4

Structural 3

HVAC 1

Site 1

Each county's permit system holds only their own records, so the combined view above exists nowhere else.

Recent work

• Structural install
  August 2026 · Howard County

  Suite 19/clarksville pet vet/installation of 14 push piers to front, right and rear foundation walls approx sq.ft 20.

• Interior install
  April 2026 · Howard County

  Hcfrs station 9/ install 40' x 10' temporary shower trailer

• Interior upgrade
  March 2026 · Howard County

  Howard County Fire Dept. Station #9/ alterations to include upgrade finishes to 3 shower rooms, convert storage space i…

• Permit filed
  September 2025 · Howard County

  Howard county detention center/ interior alterations to include: demolition of existing vestibule, associated storefron…

• Permit filed
  May 2025 · Howard County

  HOWARD COUNTY CENTER FOR THE ARTS/ PHASE/ 2 ALTERATIONS TO CONVERT UPPER LEVEL TO OFFICES AND MEETING SPACE include min…

• Permit filed
  May 2025 · Howard County

  Howard county center for the arts / interior alterations

• Permit filed
  April 2025 · Howard County

  HOWARD COMMUNITY COLLEGE/ SECOND FLOOR/ STUDENT SERVICES/ Renovate apx. 8,695 sf of existing student services area into…

• Site work
  September 2024 · Howard County

  Hebb house renovation/ grading and sediment controls for west parking lot (per capital project c0365-9124)

• Basement finishing
  September 2024 · Howard County

  Howard county hebb house office of agriculture/ change of use & interior renovation to an existing two-story building w…

• Permit filed
  August 2024 · Howard County

  *CCS DENIED*/ Ellicott City Fire station #2/ Alterations for Bay Extension

Licensing

• Maryland Home Improvement Commission Issued by Maryland Department of Labor. 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.

Permits by year

Our records for this contractor's counties begin August 2021. Years before that are not shown because we hold nothing for them, not because nothing happened.

What this page is, and is not

• Howard County: 16 permits observed, from records beginning August 2021.
• Frederick County: 1 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 KELLER BROTHERS INC under Maryland Home Improvement Commission. 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.

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