MARK L MCLAUGHLIN

Active in Frederick County
8
Permits on record
Apr 2026
First seen
Jul 2026
Last active
$2.2M
Assessed value worked on, across 6 properties

Trade activity

Plumbing 6
Site 2

Permits by year

2026 8

Properties they work on

1977
Median year built
$372K
Median assessed value
100%
Single-family
83%
Owner-occupied

Property profile is based on 6 matched county property records.

Recent permits

DateCountyTypeDescription
Jul 9, 2026 Frederick County Plumbing Permit Install (2) 420lb/120 gallon propane tanks. Run apx 15' of 1/2" copper gas line from tank…
Jun 16, 2026 Frederick County Plumbing Permit Install 28Kw whole house generator. Install (2) 420lb/120 gallon above ground propane tan…
Jun 4, 2026 Frederick County Plumbing Permit Install (2) 420lb/120 gallon propane tanks. Run gas line to existing 26kw whole house gen…
May 27, 2026 Frederick County Tank Permit Install 500 gallon above ground propane tank.
May 26, 2026 Frederick County Plumbing Permit Install 18kw whole house generator with 20' of surface mounted gas line from existing gas…
May 20, 2026 Frederick County Plumbing Permit Install 420lb/120 gallon propane tank, run 20' of 1/2" copper gas line, and tie into exis…
Apr 21, 2026 Frederick County Plumbing Permit Install 25' of buried LP gas line from 500UG tank to Regulator at house. Tie into existin…
Apr 17, 2026 Frederick County Tank Permit Install 500 Gallon Under Ground Propane Tank.

Contractors working in Frederick County see new permits in their service area the week they are filed, with property details attached.

See how it works

Source: county permit records. Updated monthly. Not every filing names a contractor, so these counts are a floor; actual permit activity is usually higher.