Building Department Spotlight: Denver - A Q&A on the Residential GC License and the Supervisor Certificate

Every building department in Colorado runs its own show. There is no state wide residential general contractors license. Denver has a reputation among contractors as one of the toughest to work with, so I picked up the phone and called their licensing office (a couple times) directly to find out exactly what it takes.

First, the call itself almost didn’t happen. I got a 15-minute hold, then got bounced into a satisfaction survey mid-wait, answered it, and got hung up on before ever talking with anyone. Frustrating, yes. These things happen, so I called right back, held another five minutes, and got connected with Myreisha at the licensing desk – one of three Admin Reviewers who handle this for the entire city. What follows is everything she walked me through, cleaned up into a straight Q&A so you can actually use it.

Q: Denver’s website lists F13 as the required exam. Is that still accurate?

Yes and no. Denver does still accept F13, but like nearly every other Colorado jurisdiction, they’ve also moved to accepting G13. If you’re studying for the exam and haven’t tested yet, take the G13. It’s the newer standard, it’s what most other counties are actually asking for, and it keeps your options open if you ever want to license somewhere other than Denver.

Q: What’s the deal with the Supervisor Certificate? Why does Denver require that on top of the license?

This is where the real work is. Denver splits licensing into two separate steps: first, an individual inside your company earns a Supervisor Certificate. Second, your company uses that person’s credentials to obtain the actual Class C Residential Contractor license. You cannot get the license without a certificate holder in place first.

Myreisha explained the logic: Denver wants to confirm that at least one identified, accountable person inside the company actually knows the code from head to toe before they’ll license the business itself. Some other jurisdictions license the company directly without this individual-level check. Denver doesn’t.

The practical effect: the certificate is where nearly all the requirements – the exam, the experience – actually live. The license that follows is comparatively simple paperwork once the certificate is secured.

Q: What does someone actually need to qualify for the Supervisor Certificate?

For residential, Class C specifically: at least 24 months of documented experience covering foundation, framing, and roofing – and it has to be new house construction, not remodel or addition work.

That last part matters more than people expect. Denver will review remodel and addition experience, but it does not satisfy the Class C requirement on its own. If your background is heavy on remodels and additions, that alone likely won’t get you across the line for Denver’s new-construction residential certificate.

Any employee can hold the certificate – it doesn’t have to be the owner. For a smaller, owner-operator company, it’s usually the owner proving their own field experience through letters from past employers or contractors they worked under. For larger companies, it’s typically an employee with the right hands-on background, not necessarily leadership.

Q: How does someone actually document that 24 months of experience?

Through letters – someone needs to identify themselves clearly (name, company, their role in vouching for the work) and sign it. Those letters need to be notarized, but the notarization doesn’t have to come from Colorado. Myreisha said they regularly receive notarizations from other states – she specifically mentioned Minnesota, Texas, and Oregon – and all are accepted, even though they look different from a Colorado notary stamp. Colorado’s electronic notarizations and acknowledgments are accepted too.

What Denver actually checks is narrower than people assume: they verify the notary stamp is valid and current. They are not verifying whether the person providing the letter is themselves licensed or registered anywhere – just that the identity and the notarization are legitimate.

Q: Does the experience have to come from work done in Colorado?

No. Experience from any of the 50 states counts. This opens up a real strategy for anyone building their history: if you’re short on Denver-qualifying experience, get documented new-construction experience anywhere, including in a Colorado jurisdiction with lighter requirements. We’ve advised students in this exact spot before – build the documented foundation, framing, and roofing history in a county like Aurora, where the requirements are more straightforward, then bring that history back to Denver once you’re ready to apply there. Myreisha confirmed that’s a legitimate path.

Q: Does the Supervisor Certificate holder need to be the owner? And what if my crew is mostly 1099?

Doesn’t have to be the owner – any actual employee can hold it. The real requirement is accountability and reachability, not job title. The certificate holder has to be on-site for inspections, including surprise inspections, and reachable when the city calls. If the person holding the credential is essentially a name on paper – living out of state, never actually on the jobsite – Denver can put the certificate on hold.

The call didn’t draw a hard line specifically between 1099 and W2 status. The emphasis throughout was entirely on responsibility and presence: is this person actually accountable for what happens on that permit.

Q: Can one Supervisor Certificate cover multiple projects running at the same time?

Yes. Denver is fine with a certificate holder having several active projects at once. The requirement is that they stay reachable – if an inspector calls about a site and the holder can’t get there, they need to respond, reschedule, or have designated another authorized person from the company who can step in. That authorization gets documented through a company meeting minute filed with Denver when the license is set up.

Q: What happens if someone has the experience but can’t get anyone to sign off on it – an old employer refuses, or isn’t around anymore to ask?

This is a real problem, and a common one. Myreisha was upfront that the licensing desk can’t grant exceptions to the standard documentation requirement – that authority sits with a specific city inspector who reviews Class B, B2, and C applications and has discretion to accept alternative proof: W2s, permit history, letters from coworkers, other documentation that fills the gap when a formal notarized letter isn’t available.

If you’re in this exact situation, reach out to us directly. We have the contact for that review process and can point you in the right direction rather than publishing details here that could go stale or get miscommunicated secondhand.

Q: What’s the realistic timeline from applying to actually being able to pull a permit?

Supervisor Certificate review takes 14 to 20 business days. Once that’s approved and the license application goes in, that step only takes 48 to 72 hours. All in, budget roughly 17 to 23 business days – call it three to four weeks – from start to finish.

Q: What does this actually cost?

$60 for the Supervisor Certificate, $250 for the contractor license. $310 total to get licensed, and that covers you for three years.

Q: What’s the renewal process like, and what happens if someone lets their license lapse?

Both the certificate and the license renew every three years. The system automatically emails a renewal notice 30 days before expiration, using whatever contact info is on file – which is exactly why keeping your info current matters.

Renewing on time is simple and fully remote: a photo ID and a renewal form for the certificate, current Secretary of State documentation for the license. No in-person visit required if you’re within that window.

If it lapses more than 30 days past expiration, the process moves to in-person only – Myreisha explained that the payment system and e-permit account actually freeze and the information drops out of the system, so it has to be re-established in person.

If it’s expired more than three years, there’s no shortcut. You’re filing a brand-new application and meeting every current requirement from scratch, as if you’d never been licensed at all.

Q: Is there anything coming down the pipeline that contractors should know about?

Two things. First, Denver currently does not require general liability insurance for contractor licensing renewals – right now, insurance and bonding requirements are limited to right-of-way contractors. Myreisha confirmed that’s changing. Denver plans to start requiring insurance for construction contractors as well. No effective date has been set yet, but it’s coming, and it’s worth not getting caught flat-footed on.

Second, Denver is moving off the 2021 building code and onto the new 2025 Denver Building and Fire Code, built on the 2024 I-Codes with the 2021 IECC folded in for energy requirements. Here’s the important nuance: the code changing does not mean the exam is changing. Denver is still on F13/G13 for the residential contractor exam, and there’s no indication a new exam edition is coming alongside the new code. Code cycle and exam cycle move independently in Denver’s system – don’t assume one triggers the other.

Q: Last one – does a Denver license or Supervisor Certificate carry over to any other jurisdiction, or vice versa?

No, confirmed directly, no exceptions. Denver does not reciprocate with any other Colorado jurisdiction, and it doesn’t reciprocate with any other state either. Getting licensed in Denver means you’re still starting from zero everywhere else, and getting licensed elsewhere doesn’t buy you anything in Denver. If looking to get licensed outside of Denver but you hold a denver residential gc license, check with the building department you are going to work at. Denver is strict when it comes to licensing, so they very well might accept your Denver license and a registration fee to get you licensed in their jurisdiction.