Contractors in Johnstown, CO

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Johnstown contractors at a glance

Johnstown ranks 38th among Colorado cities by contractor profiles in HomeProFax, with 317 businesses and licensed tradespeople listed at local addresses, with ZIP 80534 home to the largest share. 72% of them show an active license on file, above the Colorado-wide figure of 54% for the profiles we hold. Roofers, general contractors and HVAC firms aren't state-licensed in Colorado, so they show up only through city license lists. 44 Johnstown-based profiles appear on the lists we hold (Arvada (18), Thornton (15) and Aurora (11)), including 6 roofing licenses, 10 general contractor licenses and 2 HVAC/mechanical licenses.

State licensing boards are the main source here: we count 231 electrical licenses (27 masters, 137 journeymen, 24 residential wiremen) and 67 plumbing licenses (15 masters, 33 journeymen) in Johnstown. 241 profiles are individual license holders rather than companies. The company on your contract should be one of the 23 active electrical or 8 active plumbing contractors, or a registered firm from a nearby city.

Experience runs deep: half of the licensed pros here were first licensed in 2012 or earlier, and 35 active licenses date from before 2000. 37 are new since 2024. Board discipline: 5 Johnstown records have a DORA discipline flag (3 electrical, 2 plumbing). 4 belong to licenses that are still active, so a current license alone doesn't rule out past discipline.

8 permits from City of Boulder open data trace back to 2 contractors based in Johnstown. The leaders are Fiske Electric (6), Amp'd Up Electric LLC (2). The newest is dated 2023-05-18, and at least 0 were issued in the past year. Most are electrical permit (5), fire permit (3). These are jobs these firms did in Boulder or Denver. Johnstown doesn't publish permits in a portal we cover yet, so no permits shown doesn't mean no permits pulled.

HomeProFax profiles with a Johnstown address, built from DORA electrical and plumbing rosters, the Aurora, Arvada and Thornton contractor license lists, Colorado Secretary of State filings and Boulder/Denver open permit data. Counts as of Oct 24, 2026.

Rather than checking each agency yourself, ask the contractor for their verified HomeProFax report. It covers license, discipline, permits and business standing in one link.

Who licenses contractors in Johnstown

Local authority: Town of Johnstown Building Division. What we verified on official pages (Oct 2026):

• Johnstown requires a $100 annual contractor license before permit-required work or a building permit application through eTRAKiT. (source)
• Johnstown applicants upload a Colorado Secretary of State certificate of good standing and a liability certificate naming the Town. (source)
• Johnstown requires building permits for most construction, including electrical, plumbing, decks, additions and roofing over 200 sq. ft. (source)

Electricians and plumbers are also licensed statewide by the DORA State Electrical Board and the DORA State Plumbing Board. Rules and fees change, so confirm with the department before you sign.

Hail, roofs and your contract

Johnstown sits on the Front Range, in the heart of "Hail Alley." The Rocky Mountain Insurance Information Association says the region usually sees three or four catastrophic hailstorms a year, and the damaging season runs from mid-April to mid-September. After a storm, Colorado law lets you cancel an insurance-paid roofing contract within 72 hours of a written claim denial (C.R.S. 6-22-104), and a roofer may not offer to pay or waive your deductible (C.R.S. 6-22-105).

Johnstown contractor list

317 profiles, ranked by HomeProFax score.

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Johnstown contractor FAQ

How many contractors are listed in Johnstown, CO?

HomeProFax lists 317 contractor profiles with a Johnstown business address. 227 (72%) show an active license on file and 88 show an expired one. 231 hold electrical licenses and 67 hold plumbing licenses.

Who licenses contractors in Johnstown, Colorado?

Town of Johnstown Building Division handles contractor licensing for Johnstown. Johnstown requires a $100 annual contractor license before permit-required work or a building permit application through eTRAKiT. Electricians and plumbers also need Colorado DORA licenses.

Have any Johnstown contractors been disciplined?

5 Johnstown profiles carry a Colorado state board discipline flag, and 4 of those licenses are still active. Open the profile and read the board record before you hire.

Which Johnstown contractors have the most permits on file?

Fiske Electric leads with 6 permits. In total, 2 Johnstown-based contractors have 8 permits on file from the Boulder and Denver open-data portals HomeProFax covers.

Can I find licensed roofers based in Johnstown?

Colorado has no state roofing license, so roofers come from city license lists. 6 roofing licenses (6 active) belong to Johnstown-based contractors on the Aurora, Arvada and Thornton lists HomeProFax holds.

How do I verify a contractor in Johnstown quickly?

Ask the contractor for their verified HomeProFax report. It puts their license status, any board discipline, permits on file and Secretary of State standing on one page with sources. You can also search any business free on HomeProFax.com.