Types of Contractors to Hire in Colorado

Colorado has no statewide license for general contractors. Denver, Aurora, Lakewood, Colorado Springs and most Front Range cities license contractors locally, and the state licenses two trades directly through the Division of Professions and Occupations: plumbing and electrical. Before you hire anyone for a repair or a remodel, know which type of contractor the job calls for and which license applies where your home sits.

General Contractors

A general contractor runs a project end to end: scheduling, budget, and the crews for each trade. Many carry broad skills across carpentry, framing and finish work, and hire subcontractors for electrical, plumbing and HVAC. Hire a general contractor for a whole-house remodel, an addition, or any project that touches three or more trades. Ask for the city or county registration number before signing anything, since a general contractor working inside Denver, Aurora or Colorado Springs city limits needs a local license issued by that city, not just a business license.

Specialty Contractors

Specialty contractors work one trade: roofing, framing, concrete, fencing, drywall, tile. Two specialties, plumbing and electrical, carry a Colorado state license on top of any city permit registration. A plumber or electrician without a state license number cannot legally pull a permit for that work anywhere in Colorado. For a single-trade job, roofing after a hailstorm or a bathroom retile, a specialty contractor commonly costs less than routing the same work through a general contractor's markup.

Self-Performing Contractors

A self-performing contractor holds a general contractor's registration but does the physical work personally instead of managing subcontractors. This fits a homeowner who wants one point of contact and one person accountable for the finished product, on projects sized to what one skilled builder can complete: a kitchen refresh, a deck, a basement bathroom. Self-performing contractors book out further than firms with multiple crews, so build in extra lead time on the schedule.

Does Colorado License General Contractors?

No. Colorado leaves general contractor licensing to individual cities and counties. That means a contractor licensed in Aurora is not automatically licensed to pull a permit in Denver, and a contractor who only works in unincorporated Arapahoe or Jefferson County carries no city license at all. Confirm licensing with the specific city or county where the work happens, every time, even if the same contractor did a job across town before.

Contractor Licensing by City

How to Verify a Contractor's License and Insurance

Ask for three documents before signing a contract: the city or county contractor license number, a certificate of general liability insurance naming your project address, and proof of workers' compensation coverage if the contractor has employees. Call the issuing city's license office directly to confirm the number is active and not under a complaint hold. Do not accept a photo of a license card as proof; check it against the city's own database.

Permits: What Denver and Front Range Cities Require

Structural work, additions, new electrical circuits, gas line changes, and most plumbing beyond a fixture swap need a permit in Denver, Aurora, Lakewood, Littleton and Colorado Springs. A contractor who says a permit is not needed for a wall removal or a kitchen rewire is giving you a warning sign, not a discount. Skipped permits show up during a buyer's inspection years later and become a disclosure problem at resale.

HOA and Metro District Review Before You Hire

If your home sits inside an HOA or a metro district, exterior work, roof color changes, fence replacement and additions need architectural review committee approval before the contractor breaks ground, separate from the city permit. Submit your contractor's plans to the HOA or metro district first; a city permit does not override a covenant violation, and boards can require you to undo completed work that skipped review.

Colorado's Mechanic's Lien Law

Colorado law lets an unpaid subcontractor or material supplier file a mechanic's lien against your property even after you paid the general contractor in full. This is the double-payment trap: your check to the general contractor does not mean the drywall sub or the lumber yard got paid. Protect yourself by getting a signed lien waiver from every subcontractor and supplier each time you release a draw payment, and hold the final payment until all waivers are in hand.

Unpermitted Work and Your Colorado Seller's Disclosure

The Colorado Seller's Property Disclosure form asks directly whether any addition, alteration or repair was completed without a required permit. A finished basement, a converted garage, or a deck built without inspection sign-off needs to be disclosed, and an unpermitted bedroom cannot count toward the home's bedroom total in a listing. Buyers use the Inspection Objection Deadline in the Colorado contract to ask for permits, a credit, or a walk-away if unpermitted work turns up during due diligence.

Altitude, Hail and Clay Soil: What Your Contractor Plans Around

At 5,280 feet, gas furnaces and water heaters need derating or a high-altitude model; a contractor unfamiliar with Front Range elevation can undersize equipment. Hail season runs spring through September, and roofing and siding contractors book out weeks in advance once a storm rolls through, so schedule exterior work outside that window when you have the choice. Expansive bentonite clay under much of the metro area moves foundations and slabs; a concrete or foundation contractor working here should reference a geotechnical soil report, not a generic spec.

How Many Bids and Questions to Ask

• Get three bids minimum for any project over $5,000, itemized by material and labor.
• Ask for three recent references from jobs completed in the last year, in your city.
• Confirm who pulls the permit, you or the contractor, and get the permit number once issued.
• Get the payment schedule in writing, tied to inspection milestones, not calendar dates.
• Ask how change orders are priced before the first one happens, not after.

General Liability vs. Workers' Compensation

General liability insurance covers property damage a contractor's crew causes to your home during the project; workers' compensation covers an injury to the contractor's own employee on your property. Colorado law requires workers' compensation coverage for any contractor with employees, and a homeowner gets pulled into a claim when a contractor works without it. Ask for both certificates, not just one, before signing.

Historic District and Design Overlay Rules

Homes in a Denver historic district or a design overlay zone need Landmark Preservation review before exterior work starts, on top of the standard building permit and any HOA review. A contractor experienced with historic district submittals moves through this review faster than one encountering it for the first time; ask directly whether the contractor has pulled a Landmark Preservation permit before.

What a General Contractor's Markup Actually Covers

A general contractor's markup, commonly 10% to 20% on top of subcontractor and material costs, pays for project scheduling, permit coordination, subcontractor supervision and the liability of standing behind the finished work as one point of contact. Comparing that markup against hiring specialty contractors directly makes sense on projects with three or fewer trades involved; anything larger gets harder to coordinate without one person managing the sequence.

Where to go next

• Preparing and adding value before selling
• Denver ADU, zoning and historic district guide
• Denver HOA rules and fees guide
• Denver fix and flip guide
• Colorado's 4 best insurance companies for contractor businesses
• Highlands Ranch HOA rules and covenants on renovations
• Search every home for sale in Colorado

Talk to the Kenna Real Estate Group

Whether you are lining up contractors before a sale or evaluating a Colorado home with renovation history, the Kenna Real Estate Group can walk you through what a city will ask for on a permit pull and what a buyer's inspector will flag. Call or text 303-955-4220. A live person answers. Not a robot, not a phone tree. Or search every home for sale in Colorado right now.