Core Roofing and Solar - Roofing Contractor in Denver, CO

Jim Horning, Owner · Established 2002

24+

Years in Business

406

Reviews

Accreditation Status


          Cycle 2026

Status

Not Accredited

Review not yet completed

Core Roofing and Solar has not yet been reviewed for ARCO Accreditation.

ARCO Accreditation is reserved for roofing businesses that complete a comprehensive review and meet ARCO's required qualification threshold. Not every business reviewed qualifies.

Seal Not Issued

Issued only after successful review

Accreditation No.

Not Issued

Accreditation Status

Not Accredited

Accreditation Review

Not Completed

Qualification Status

Not Determined

About ARCO Accreditation

Accreditation cannot be obtained through application alone. Each business must first undergo ARCO's complete review process and demonstrate that it meets the standards required for accreditation.

Public Record

What we can independently confirm today

Findings drawn from public records, manufacturer registries, and third-party review platforms — synthesized using ARCO Standard 2026.1.

Public Signals Reviewed

across 5 categories

Customer Review Rating

4.9/5.0

across 406 verified reviews

Years in Business

24+yrs

Founded 2002

Accreditation Review

Not Yet Completed

Qualification has not been determined

Accreditation Committee Review

No committee determination has been issued.

Not Yet Conducted

The source findings below have been independently verified for this company profile. A formal ARCO Accreditation Committee review has not yet been completed, and qualification for accreditation has not been determined.

Only businesses that complete the full review and meet ARCO's required threshold may receive accreditation.

Cat 01

Licensing & Compliance

3 of 3 source checks verified

Signal

CO entity filing

Result

Good Standing

Formed: Oct 16, 2001

CO Secretary of State

Verified

Signal

SAM.gov federal exclusions

Result

No exclusions found

Checked August 2026

SAM.gov

Verified

Signal

Manufacturer certifications

Result

Owens Corning Platinum Preferred

Manufacturer programs

Verified

Cat 02

Operational History & Stability

4 of 4 source checks verified

Signal

Years in operation

Result

24+ years continuous

Founded: 2002

Verified record

Verified

Signal

Owner/principal

Result

Jim Horning

Manual collection

Verified

Signal

Website registration

Result

Registered: May 4, 2011

WHOIS/RDAP

Verified

Signal

Google Business Profile

Result

Core Roofing + Solar

Denver, CO

Google

Verified

Cat 03

State Filing & Standing

3 of 3 source checks verified

Signal

Entity identifier

Result

20011199458

CO Secretary of State

Verified

Signal

Registered agent

Result

Tomas J Wolfram

CO Secretary of State

Verified

Signal

Filing date/year

Result

Oct 16, 2001

CO Secretary of State

Verified

Cat 04

Customer Outcome Data

4 of 4 source checks verified

Signal

Aggregated marketplace rating

Result

4.9 / 5.0 across 406 reviews

Google 4.9 (405) - BBB · 1 review on file

Multi-source

Verified

Signal

Review volume

Result

406 stored public reviews

Multi-source

Verified

Signal

Customer review excerpts

Result

9 qualifying reviews on file

Multi-source reviews

Verified

Signal

BBB rating

Result

A+ / BBB Accredited

BBB Accredited since: Jan 5, 2010

BBB profile

Verified

Cat 05

Complaint & Public Findings

2 of 2 source checks verified

Signal

OSHA findings

Result

No violations across 0 inspections

OSHA

Verified

Signal

BBB complaint history

Result

No complaints filed in the last 36 months

Years in business: 24 - Business started: Oct 16, 2001

BBB profile

Verified

Public records and third-party platform data may change over time. ARCO does not guarantee ongoing third-party accuracy.

Report no. CO-260812-2178 · Evaluated Aug 12, 2026 · Independently verifiable at RoofingContractors.org/verify/CO-260812-2178

Eligibility · All Cleared

Automatic eligibility checks cleared

ARCO automatically withholds accreditation when any of the following findings are present. Core Roofing and Solar's record was checked against each.

Active SAM.gov federal exclusion

None Found

Checked August 2026 · No exclusions on record

OSHA willful violation or 3+ repeat violations on record

None Found

0 inspections · clean OSHA establishment record

BBB rating of C, D, or F

None Found

Rated A+ · BBB-accredited since Jan 5, 2010

Avg. customer rating < 4.0 (with ≥ 20 reviews)

None Found

4.9/5.0 · 406 verified reviews

About Core Roofing and Solar

Core Roofing and Solar is a Denver, Colorado-based company owned by Mr. Jim Horning. The business operates as a general contractor specializing in professional roofing services.

Based in Denver

Contact Core Roofing and Solar to confirm availability for your project in Colorado.

Nearby places

Denver, CO

Twin Lakes, CO

Berkley, CO

Welby, CO

Derby, CO

Sherrelwood, CO

Federal Heights, CO

Contact Core Roofing and Solar to confirm service at your address.

Aggregated review summary

406

reviews analyzed

Google 405 reviews

BBB 1 review

ARCO Review Findings

Core Roofing and Solar is highly regarded for their professional communication, expert workmanship, and thorough cleanup process. Customers consistently describe the team as reliable, responsive, and efficient, noting that they make the roofing experience simple and stress-free.

5 recent reviews

KELLY B.

BBB · May 2026

Whenever we have a roofing or gutter need, we always turn to Core! They really care about the customer's experience and all of the staff members are really good at what they do!

Chris R.

Google · Jul 2025

Core roofing and solar did an outstanding job on our beautiful new roof! Thank you to Andrew Schmidt, Martin Martinez, James Callahan, Rob Kuseski and all the team for making the process so seamless and easy and fast!! The communication throughout was excellent and they were even able to add some additional work (shed) with only a days notice! I would highly recommend core roofing to anyone who is looking for a new roof and doesn’t want the hassle of out of state companies that come through after a storm. Thank you, Chris Ross

M B.

Google

A top notch crew from the office to the rooftop. CORE was stellar in 2018 and stellar once again this past fall when we needed our roof replaced again. They make the process simple and clear, communication takes the stress away and you always know what's going on. I sincerely thank everyone at CORE for your top quality work!!!!

Robin P.

Google

Core roofing and solar has provided roof repair and replacement for our home and business properties for at least 10 years. The quality of the materials they use Is excellent. So is the meticulous attention to details in the installation. The roof they installed this month received The highest praise from our city inspector. We have been consistently impressed with the great communication, friendliness, attention to details, and availability of the project supervisor, Steve.

L M.

Google

Amazing service from Briana Nelson and her team! Always reliable and trustworthy. So thankful we have a great team to refer to clients, friends, and family.

Review data aggregated from public sources · ARCO does not moderate third-party reviews

Why Hire an ARCO-Accredited Roofer

The difference between "good enough" and proven excellence. Only the top roofers in America earn ARCO Accreditation — recognition of true craftsmanship, ethics, and integrity.

Homeowner Benefits

Peace of Mind: Every ARCO-Accredited roofer has been checked against public licensing records, safety records, complaint history, and verified customer reviews.
Work You Can Trust: ARCO's evaluation includes manufacturer certification programs — credentials that can help preserve your roof's warranty coverage.
Verified, Not Self-Reported: ARCO's findings come from government and third-party sources — state filing offices, SAM.gov, OSHA, and the BBB — not from paperwork a contractor submits about itself.
A Public Paper Trail: Every accredited profile publishes its report number, evaluation date, and sources — so any homeowner can independently verify the findings at RoofingContractors.org.

What Accreditation Means

License & Registration Verification
State Filing & Standing Review
Federal Exclusion Screening
OSHA Safety Record Review
Complaint History Screening
Customer Review Evaluation
Annual Re-certification

Contact Core Roofing and Solar

Ready to request an estimate?

Call (303) 997-1559 or request a written estimate through coreroofing.com.

Call (303) 997-1559 Visit Website

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