Builder Lookup · Arlington permit record
W G/Welch Mechanical Contractors LLC
Virginia contractor license 2705154294, Class A (no limit on contract size), specialties Plumbing, HVAC and Gas fitting contracting. Licensed since August 28, 2014; expires August 31, 2028. Per the DPOR regulant list retrieved September 11, 2026.
Frederick, MD
W G/Welch Mechanical Contractors LLC has 29 jobs on Arlington County permit records issued September 1, 2022 to September 10, 2026 (42 permits), mostly plumbing work. Retrieved September 11, 2026.
Jobs by year
Peer groups
No jobs in any Arlington peer group. Not enough record to compare. 29 jobs since September 1, 2022.
Works for
Worked for individual homeowners on 0% of jobs; the rest were company-owned properties (builders, investors, LLCs).
Crew
No electrical, plumbing or mechanical firm shares 3 or more permitted sites with this firm on record.
Where they work
Jobs by zip code
- 2220629 jobs
Zip codes and map cells with fewer than 3 jobs are not shown.
Map of Arlington County showing where W G/Welch Mechanical Contractors LLC has submitted permits, as shaded cells; the zip code list gives the same information.
Each shaded cell is about 0.7 km²; darker means more jobs there. No addresses are shown.
Sources and notes
- Arlington County permit records (open data API), retrieved September 11, 2026
- Arlington County permit portal, retrieved September 11, 2026
- Virginia DPOR regulant lists (contractor and tradesman licenses), retrieved September 11, 2026
- Arlington County: permits issued September 1, 2022 to September 10, 2026. First permit in window July 24, 2024; most recent November 13, 2025. 42 permits, 29 jobs.
- Jobs are distinct permitted sites; a site with several permits counts once.
Permit records show what was permitted, when, and by whom. They do not show workmanship, price fairness, or unpermitted work. Declared values are entered by applicants and are commonly understated. Completion figures reflect the county's closing process and are shown only relative to peers in the same window. Arlington County disclaims the accuracy of its data; so does this site.
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Name as written on county permits:W G / WELCH MECHANICAL CONTRACTORS LLC; W G/WELCH MECHANICAL CONTRACTORS LLC. DPOR license number 2705154294.
Work by category (jobs): plumbing work 29; heating and cooling work 2; work outside the site’s categories 1.