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Research Denver-area contractors before you hire

Confirm the project’s municipality and scope before comparing credentials, permit responsibilities and written proposals. This guide links dated NHA profiles with official Denver research resources. You can research and contact companies directly without a lead-capture form. Examples are not rankings or guarantees.

Guide sources and live NHA profile links reviewed October 17, 2026. Each company’s qualification date is stated below; this guide review did not repeat its BBB or Google checks or independently verify current licensing or insurance.

Use the property record—not only a Denver mailing label

A Denver-area mailing address does not by itself establish City and County of Denver permit jurisdiction. Denver’s e-permits guidance tells applicants to check the Assessor’s database to make sure the property is in Denver. Confirm the actual parcel and responsible authority before following a city checklist or comparing permit allowances.

The same page links a map for landmark and historic status. That is an early research step for roof and other exterior work, not an assumption that every house in an older neighborhood has the same designation. For projects outside Denver, ask that municipality or county about its own licensing, approvals and inspection process.

Read local profiles by service and research date

These currently published NHA profiles are nonranked examples. Confirm service to your exact property, current company details and the actual work offered.

  • Innovative Plumbing & Heating Solutions — plumbing and heating. Qualification research October 14, 2026. The profile records a Denver mailing address on East 74th Avenue and covers residential plumbing, drains/sewers, water heaters, boilers and hydronic heating. Its address label does not establish the project’s municipal jurisdiction.
  • New Age Electric — electrical, Thornton. Qualification research October 14, 2026. The profile covers installation, repairs, troubleshooting, panels and wiring. It identifies a Thornton business, not a Denver office. The Google snapshot contained nine reviews, a small sample; BBB displayed the city and ZIP rather than the Google street address. Read that location-match limitation before relying on the profile.
  • 730 South Exteriors — roofing and exteriors, Denver. Qualification research October 7, 2026. The profile covers roof repair, replacement and new installation plus gutters, siding, windows and storm-damage work. Ask whether historic-property review or right-of-way staging affects the proposal.

Each reported zero BBB complaints displayed on its own research date. That is not a guarantee that no customer experienced a problem. Ratings, complaint records and company details can change; follow the profile source links and retain the stated credential limitations.

Ask which city and state credentials cover the scope

Denver’s contractor licensing guidance distinguishes contractor licensing from the supervisor-certificate prerequisite and explains how Colorado electrical or plumbing licensing relates to that prerequisite. A state trade credential should not be assumed to substitute for every Denver contractor requirement. The City also states that it does not reciprocate other counties’ or states’ contractor credentials.

Ask the licensing office which category applies, match the exact legal business and credential holder, and confirm who is eligible to obtain the project permit. A verification link from the agency page was unavailable during this review; use the current agency guidance and contact route rather than treating an inaccessible lookup as a clean record. NHA did not verify any example company’s individual credentials or insurance.

A quick permit is still a permit

Denver’s Plan Review, Permits and Inspections guide separates project pathways and links quick permits for eligible work under specified conditions. A permit issued without plan review is not permission to skip the permit, use an unsuitable contractor or omit required inspections.

Use e-permits to follow the applicable application, issued-permit and inspection records. Agree who submits the complete scope, obtains issuance, schedules inspections, handles corrections and provides completion records. An application receipt or requested inspection date is not a passed final inspection. Ask Community Planning and Development which pathway applies to the actual property and work.

Check historic exterior requirements before accepting a roof proposal

Denver’s e-permits instructions state that exterior work, including roofs, in landmark or historic areas cannot be permitted online through that route. This means another review process may be needed—not that the work is permit-exempt or that a permit cannot be obtained.

The City’s regulations and landmark guidance explains review of exterior work requiring zoning or building permits at designated landmarks and historic-district properties. It also identifies a separate Lower Downtown process. Ask about property designation, materials and visible exterior changes before choosing a product or schedule; do not assume that a contractor’s standard roof package meets a property-specific approval.

Plan curbside access, restoration and written changes

Denver’s right-of-way FAQ explains that the public right-of-way can include space between a sidewalk and property line. Work or occupancy there may involve approvals separate from the building work, including street cuts, sidewalk or curb replacement and equipment staging. Ask which agency handles access and pedestrian protection before work begins.

Write down the complete scope, materials, access arrangements, debris removal, restoration, payment milestones, schedule, warranty and change-order process. For plumbing, separate diagnosis and access from repair and restoration; for electrical work, specify circuits, equipment and inspections; for roofing, identify tear-off, decking, flashing and drainage responsibilities. If public trees, tree lawns or designated parkways are involved, ask the City about applicable protection and approvals instead of treating private-yard permission as sufficient.

What NHA Gold does—and does not—verify

Gold profiles document an exact-entity BBB A+ letter grade, a directly checked Google rating strictly above 4.3, matching business identity, official service evidence and BBB complaint-context review on their own research dates. Ratings and records can change. Licensing, bonding, certifications and insurance were not independently verified by NHA. Recognition is not government approval or a guarantee of workmanship, safety or outcomes.

Read the research standards, search the company directory or explore the national contractor research hub. Listings are free and examples are not ranked. Any material relationship disclosed in a company profile remains relevant; a guide does not override it.

For door-specific scope, local permit questions and dated profile starting points, use the Denver garage-door research guide. It distinguishes repairs and replacement from structural changes, new-garage construction and separate electrical work.