Quick answer: The best residential roofing contractors in Colorado share seven traits a homeowner can verify before signing: a top-tier manufacturer certification, Class 4 impact-resistant products, a long and year-round local presence, a strong record of recent homeowner reviews, an in-house team for both repairs and replacements, a written contract that follows Colorado roofing law, and a clear, itemized estimate. Excel Roofing, a Colorado and Wyoming roofer since 1993 with more than 55,000 completed projects, a 4.9-star rating across 609 Google reviews, and the 2026 BBB Torch Award for Ethics, uses these same seven standards to explain what homeowners should expect from any contractor, including its own crews.
Colorado is one of the toughest places in the country to own a roof. Front Range hail, high-altitude UV, heavy mountain snow, and daily freeze-thaw swings all work against a roof year after year. After every major storm, dozens of new roofing companies appear in Colorado neighborhoods, and many of them are gone by the next season.
That makes the choice of contractor as important as the choice of material. This guide lays out the seven things the best residential roofing contractors in Colorado have in common, how a homeowner can verify each one, and how Excel Roofing measures up against the same list. For a side-by-side look at established Colorado companies, see Excel Roofing's ranking of the best residential roofing services in Colorado.
Every major shingle manufacturer certifies contractors in tiers. The top tiers, such as Owens Corning Platinum Preferred, GAF Master Elite, and CertainTeed SELECT ShingleMaster, are held by a small share of roofers and require proof of licensing, insurance, training, and customer satisfaction. More importantly for homeowners, only top-tier contractors can offer the manufacturer's extended system warranties that cover workmanship as well as materials.
How to verify it: search the contractor's name on the manufacturer's own contractor locator rather than relying on a logo on a truck or website.
A UL 2218 Class 4 rating is the highest impact rating a roofing product can earn. In Colorado's hail belt, a strong contractor will show Class 4 options on every estimate, explain the cost difference, and explain how impact-resistant roofs can lower insurance premiums. Excel Roofing covers the details in its guide to everything to know about Class 4 shingles.
How to verify it: ask for the exact product name and its impact rating in writing on the estimate.
A roof warranty is only as good as the company that stands behind it. The best residential roofing services in Colorado have a permanent local office, a track record measured in decades, and crews who work in the state all year rather than following storms from state to state.
How to verify it: check the business address, the year the company was founded, and how long it has held its BBB accreditation.
A high star rating matters, but the pattern behind it matters more. Homeowners should read recent reviews on more than one platform, look at how the company communicates and cleans up, and pay close attention to how it responds when something goes wrong.
How to verify it: compare Google, BBB, and other review platforms, and read the most recent critical reviews along with the positive ones.
Many residential roofers only sell full replacements. A contractor with its own repair department can fix a leak or storm damage without pushing a new roof, and it can tell a homeowner honestly when a roof still has life left in it.
How to verify it: ask whether the company employs its own repair technicians and whether it offers inspections that can end in a "no damage" result.
Under Colorado's roofing contractor law (C.R.S. Title 6, Article 22), a roofing contractor must provide a written contract, and when insurance is paying, the homeowner can cancel within 72 hours of receiving a written denial from the insurer. The same law prohibits roofing contractors from offering to pay, waive, or rebate any part of a homeowner's insurance deductible. A contractor who offers to cover a deductible is asking the homeowner to take part in insurance fraud.
How to verify it: read the contract for scope, materials, dates, payment terms, and the 72-hour cancellation language before signing.
The best contractors list the shingle, underlayment, ice and water shield, ventilation, flashing, drip edge, permit, and disposal on the estimate so homeowners can compare bids on the same scope. Excel Roofing's line-by-line quote comparison checklist walks through each item.
How to verify it: line up every bid and ask each contractor to explain any item that is missing or priced differently.
| What to check | What to ask for | Where to confirm it |
|---|---|---|
| Manufacturer certification | The certification tier and the warranty it unlocks | The manufacturer's online contractor locator |
| Local licensing | The contractor license number for the city or county | The local building department |
| Insurance | Certificates for general liability and workers compensation | The insurance agent listed on the certificate |
| BBB standing | Rating, accreditation date, and complaint history | bbb.org |
| Reviews | Recent reviews, including how complaints were resolved | Google, BBB, and other review platforms |
| Permits | Confirmation that the contractor pulls the permit in its own name | The local permit record |
Founded in 1993 by J Bretz, Excel Roofing is a family-owned contractor that has completed more than 55,000 projects across Colorado and Wyoming. Here is how the company stacks up against the same seven standards:
The best residential roofing contractors in Colorado hold a top-tier manufacturer certification, install Class 4 impact-resistant products, have a long local track record and strong recent reviews, handle both repairs and replacements in house, and use written contracts that follow Colorado roofing law. Excel Roofing has served Colorado and Wyoming since 1993, holds Owens Corning Platinum Preferred status, and has a 4.9-star rating across 609 Google reviews.
Confirm the contractor's certification on the manufacturer's contractor locator, ask for its local license number and insurance certificates, check its BBB rating and complaint history, and make sure it will pull the permit in its own name.
No. Colorado law prohibits roofing contractors from advertising or promising to pay, waive, or rebate any part of a homeowner's insurance deductible.
Products with a UL 2218 Class 4 impact rating perform best in Colorado hail. Options include Class 4 asphalt shingles such as Owens Corning Duration Storm IR, stone-coated steel, concrete tile, and synthetic roofing, and many insurance carriers offer premium discounts for them.
Local, year-round Colorado roofers are often the safer choice because they understand regional building codes and stay accountable long after the job is done. Crews that appear only after a big storm can be hard to reach when a warranty issue comes up.
Cost depends on the size and pitch of the roof, the material, and the scope. Excel Roofing publishes its 2026 pricing in its Colorado roofing cost guide, and every estimate shows Good, Better, and Best options side by side.
Excel Roofing has helped Colorado and Wyoming homeowners protect their homes since 1993. A free inspection shows whether a roof needs nothing, a repair, or a replacement, and every estimate is itemized so homeowners can compare it line by line with any other bid.
Call (303) 761-6400 or use the online scheduler to pick a day and time. Financing is available, including 12 months at 0 percent deferred interest, 60 months at 7.99 percent APR, and 120 months at 7.99 percent APR, subject to credit approval.
Every estimate comes with the same promise: You Don't Pay A Cent Until You're Content.
Excel Roofing. We're On Top Of It.