Company Facts
Core Roofing Systems at a Glance
The work
- Best for
- Hail-damaged Denver homes and specialty roofs in steel, slate or copper
- Primary service
- Roofing
Where
- Headquarters
- Denver, CO
- Service area
- Denver
- Emergency service
- Yes, 24/7
Money and guarantees
- Free estimates
- Yes
- Financing
- Available
- Workmanship warranty
- 5-year workmanship warranty on installations and repairs, plus manufacturer warranties from Owens Corning and Versico depending on the product.
Credentials
- Owens Corning Platinum Preferred Contractor
- Owens Corning Platinum Preferred Contractor (reported by the company, not verified)
Editorial Review
Our Take on Core Roofing Systems
Core Roofing Systems pairs a 25-year track record with seamless gutters formed on site and a choice of guard systems, backed by a 5-year workmanship warranty. Reviewers consistently describe clear communication and clean job sites, though the ones we read are about roofs. The weekday-only office hours and a phone number that differs between Google and the website are the main things to sort out before you call.
Best forHail-damaged Denver homes and specialty roofs in steel, slate or copper
What We Like
- Founded in 2001 and based at 4049 St. Paul Street in Denver
- Forms seamless gutters on site and installs surface tension, mesh or sealed guard systems, per its gutters page
- Owens Corning Platinum Preferred contractor with Versico, GenFlex, MuleHide and IB Roof Systems credentials
- 5-year workmanship warranty plus manufacturer warranties on installations and repairs
- Promotional financing: 12 months no interest, no payment on up to $10,000, subject to credit approval
Things to Consider
- Office hours are Monday to Friday, 8 to 5 on Google, with no listed weekend hours
- The website lists 303-295-2220 while Google lists 303-647-9713, so confirm the right number
- The website does not publish a Denver roofing license number, so verify it with the City and County of Denver
Customer Ratings
Google Reviews for Core Roofing Systems
Customer ratings shown here come from Google. They are separate from our editorial review above.
Rating Distribution
- 5 stars95%
- 4 stars3%
- 3 stars0%
- 2 stars0%
- 1 star2%
iAbout this distribution
The distribution reflects the 431 Google reviews available when this profile's review data was last refreshed on October 12, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.
Recent Google Reviews
Editorial Ranking
Why Core Roofing Systems Made Our Top 9
It holds position 6 in 9 Best Gutter Companies in Denver, CO (2026).
What They Do
Services Offered
Areas Served
Based in Denver, CO.
iAbout service coverage
Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.
Company Background
About Core Roofing Systems
Core Roofing Systems installs stone-coated steel, standing seam metal, slate, copper and architectural shingles, an unusually wide menu for a company working out of one shop at 4049 St. Paul Street in Denver's Elyria-Swansea area. The company was founded in 2001 and describes itself as locally owned, with crews that work the same Front Range neighborhoods where hail does its damage, from Denver proper to Aurora, Englewood and Lakewood.
Residential work covers replacements, repairs and inspections, plus flat and low-slope systems for additions and covered structures. On the commercial and multifamily side, Core Roofing Systems installs TPO, PVC, EPDM and modified bitumen, and it lists Versico authorization along with GenFlex, MuleHide and IB Roof Systems certifications. It also holds Owens Corning Platinum Preferred status, which the company says covers fewer than 1 percent of roofers. The company states it can coordinate solar detach and reset when a roof sits under panels, and it handles storm evaluations and insurance claim documentation.
Gutters are a full service line with their own page. Core Roofing Systems forms seamless gutters on site with its own gutter machine, so each run is one piece per roof section, and it recommends K-style or half-round profiles with a color chosen to match trim or siding. It also installs gutter guards and will spec a surface tension guard, mesh system or sealed gutter depending on the trees and water flow at your house. The site says it sizes gutters and sets pitch for Denver's heavy snowmelt and summer thunderstorms, installs them as part of the roof system so flashing and drip edge work together, and gives a 5-year workmanship warranty on labor, with Owens Corning gutters also carrying a manufacturer warranty. Reviews we read are about roofs, so ask for gutter references.
Reviews lean on communication and cleanup. Briana, a senior account manager, is thanked for guiding one family through a hail damage replacement and for a fast, thorough inspection with minor repairs for another. David, also a senior account manager, earned a repeat-business promise after assessing damage found in an inspection. One reviewer wrote that the install day went smoothly and the crew cleaned up well. Google shows 4.9 from 431 Google reviews, read October 12, 2026. Financing includes a promotional 12-month no interest, no payment offer on up to $10,000, subject to credit approval.
This company suits homeowners who want gutters, guards and roof flashing designed together, premium materials such as stone-coated steel or slate, and hail victims who need claim paperwork handled carefully. It suits less well anyone who needs a quick weekend patch or the lowest bid on a basic job. The office keeps weekday hours only, and the phone number on the company website differs from the one on Google. Before booking, ask for the contractor's licence status with the City and County of Denver, which requires roofing contractors to hold a city licence (Colorado has no statewide roofing or gutter licence), ask for proof of Colorado insurance, and get the gutter and guard specification and warranty in writing.
iWhere this information comes from
Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.
Other Sources
Reputation by Source
We show each source separately rather than blending them into a single score, because they measure different things.
Pricing
Company Pricing & Estimates
What this company publishes about its own pricing.
- Free estimates
- Yes
- Financing
- Available
- Emergency callout
- Available 24/7
- Workmanship warranty
- 5-year workmanship warranty on installations and repairs, plus manufacturer warranties from Owens Corning and Versico depending on the product.
Gallery
Project Photos
Business-submitted, reviewed by our editors
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Core Roofing Systems FAQs
Is Core Roofing Systems licensed and certified in Denver?
Core Roofing Systems states it is an Owens Corning Platinum Preferred contractor, a Versico authorized contractor and a BBB A+ accredited business, but its website does not publish a Denver license number. Denver requires roofing contractors to hold a city license and Colorado has no statewide roofing license, so check the license status with the City and County of Denver and ask for proof of Colorado insurance before signing.
Does Core Roofing Systems install gutters and gutter guards in Denver?
Yes. Its gutters page describes seamless gutters formed on site in K-style or half-round profiles, plus gutter guards, with surface tension, mesh or sealed options chosen for your trees. Installations carry a 5-year workmanship warranty on labor, and Owens Corning gutters add a manufacturer warranty. The office is open Monday to Friday, 8 AM to 5 PM, and closed on weekends.
Does Core Roofing Systems offer a warranty and financing?
Yes, Core Roofing Systems offers a 5-year workmanship warranty on installations and repairs, plus Owens Corning and Versico manufacturer warranties depending on the product. It also advertises financing, including a promotional 12-month no interest, no payment offer on up to $10,000, subject to credit approval. The company serves Denver and nearby suburbs such as Aurora, Englewood and Lakewood.
Is Core Roofing Systems licensed and insured?
We checked 0 of 4 credentials against the issuing authority. Verified items carry the date we checked; reported items are what the business told us and we could not independently confirm.
What areas does Core Roofing Systems serve?
Denver. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.
Does Core Roofing Systems offer emergency service?
Yes, the company lists emergency availability. Response time depends on demand, and after a storm every company in the market is stretched.
What warranty do they offer?
5-year workmanship warranty on installations and repairs, plus manufacturer warranties from Owens Corning and Versico depending on the product.. There are usually two warranties on a job: the manufacturer covers materials, the contractor covers workmanship. Get both in writing and check whether the workmanship coverage transfers if you sell.
How was this profile built?
Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.
Can a business pay to improve its profile?
A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.
Is Something Incorrect?
Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.
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iWhat claiming does
Claiming lets you correct and maintain the factual information on this profile. Claiming or upgrading a profile does not guarantee inclusion in a TenBestFind ranking and never affects ranking position, which is decided editorially.
About This Business Profile
- Last reviewed
- November 2026
- Profile last updated
- November 11, 2026
- Google review data updated
- October 12, 2026
- Sources checked
- Issuing authorities, Google Business Profile, Company website
- Could not verify
- Owens Corning Platinum Preferred Contractor (reported only), insurance
- Sponsorship status
- No commercial relationship