Patriot Backflow and Gas Inc.

Plumbing contractor in Frederick County and Howard County

8
Permits observed
May 2026
Most recent permit
2
Counties worked
2
Towns worked

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, 50% are plumbing work.

Plumbing · 4HVAC · 2Fire Protection · 1Pool & Spa · 1
Licensed as
Master Plumber and Gas Fitter
Observed working in
Elkridge, Walkersville
Observed filing in
2 counties
License number
20020065002

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

Recent work

  • Plumbing repair
    May 2026 · Frederick County

    Backflow repairs. 2" Watts LF007M1QT SN# 026244, 2" Watts LF009M2QT SN# 056613, 1" Watts LF009M2QT SN# 088918 failed an…

  • Sprinkler modification
    May 2026 · Frederick County

    We will be replacing two backflow assemblies 5810 Billet St. A 3" fire sprinkler assembly and a 1 1/2" lawn irrigation …

  • Pool work
    April 2026 · Frederick County

    Rebuilding backflow assembly. No alterations to pool itself.

  • Plumbing replacement
    November 2025 · Frederick County

    Complete major rebuild to fire detector check backflow assembly. License # PM273015

  • Water heater replacement
    April 2025 · Howard County

    UNIT 1A/ 1-30-gallon water heater **REPLACEMENT** in common area basement level

  • Gas water heater replacement
    April 2025 · Howard County

    UNIT 1A/ (1) 30-gallon gas water heater **REPLACEMENT** for common water heater in basement level

Licensing

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

Towns we observed them working in

ElkridgeWalkersville

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

  • Frederick County: 5 permits observed, from records beginning August 2021.
  • Howard County: 3 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 Patriot Backflow and Gas Inc. 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 Frederick County

AT YOUR SERVICE REPAIR, INC.
1319 permits observed
BRYANT GROUP, INC.
1087 permits observed
CHESAPEAKE PLUMBING & HEATING, INC
969 permits observed
BEN LEWIS PLUMBING
655 permits observed
MEGA PLUMBING CORP
583 permits observed
CULLIGAN WATER TREATMENT
502 permits observed