Wimmer Roofing and Exteriors - Roofing Contractor in Denver, CO

Brandon R Hartman, Owner · Established 2008

18+

Years in Business

Reviews

Accreditation Status


          Cycle 2026

Status

Not Accredited

Review not yet completed

Wimmer Roofing and Exteriors 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

4.2/5.0

across 34 verified reviews

Years in Business

18+yrs

Founded 2008

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: Jun 25, 2013

CO Secretary of State

Verified

Signal

SAM.gov federal exclusions

Result

No exclusions found

Checked August 2026

SAM.gov

Verified

Signal

Manufacturer certifications

Result

GAF Certified · Owens Corning Preferred

Manufacturer programs

Verified

Cat 02

Operational History & Stability

5 of 5 source checks verified

Signal

Years in operation

Result

18+ years continuous

Founded: 2008

Verified record

Verified

Signal

Owner/principal

Result

Mr. Brandon R Hartman

Manual collection

Verified

Signal

Service mix

Result

Residential, Commercial, Repair, Inspection, Replacement, and Installation (+1 more)

Service area: Greater Denver area

Website profile

Verified

Signal

Website registration

Result

Registered: May 23, 2008

WHOIS/RDAP

Verified

Signal

Google Business Profile

Result

Wimmer Roofing and Exteriors

Denver, CO

Google

Verified

Cat 03

State Filing & Standing

3 of 3 source checks verified

Signal

Entity identifier

Result

20131372842

CO Secretary of State

Verified

Signal

Registered agent

Result

Brandon Ricks Hartman

CO Secretary of State

Verified

Signal

Filing date/year

Result

Jun 25, 2013

CO Secretary of State

Verified

Cat 04

Customer Outcome Data

2 of 4 source checks verified

Signal

Aggregated marketplace rating

Result

4.2 / 5.0 across 34 reviews

Google 4.2 (34)

Multi-source

Source available

Signal

Review volume

Result

34 stored public reviews

Multi-source

Source available

Signal

Customer review excerpts

Result

8 qualifying reviews on file

Multi-source reviews

Verified

Signal

BBB rating

Result

A+ / BBB Accredited

BBB Accredited since: Apr 8, 2022

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: 18 - Business started: May 29, 2007

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-260819-3810 · Evaluated Aug 19, 2026 · Independently verifiable at RoofingContractors.org/verify/CO-260819-3810

Eligibility · All Cleared

Automatic eligibility checks cleared

ARCO automatically withholds accreditation when any of the following findings are present. Wimmer Roofing and Exteriors'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 Apr 8, 2022

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

None Found

4.2/5.0 · 34 verified reviews

About Wimmer Roofing and Exteriors

Wimmer Roofing and Exteriors is a Denver, Colorado-based company owned by Mr. Brandon R. Hartman. The business specializes in providing professional roofing services for both residential and commercial properties.

Services & Specialties

What Wimmer Roofing and Exteriors does.

Roof Repair

Roof Inspection

Insurance Claims

Based in Denver

Contact Wimmer Roofing and Exteriors to confirm availability for your project in Colorado.

Service areas listed on the company website

Agate

Atwood

Aurora

Bailey

Bennett

Buffalo Creek

Byers

Calhan

Castle Rock

Colorado Springs

Commerce City

Como

Conifer

Deer Trail

Denver

Dupont

Elbert

Elizabeth

Englewood

Fairplay

Franktown

Grant

Guffey

Hartsel

Henderson

Idledale

Indian Hills

Jefferson

Kiowa

Kittredge

Lake George

Larkspur

Littleton

Lone Tree

Louviers

Monument

Morrison

Palmer Lake

Parker

Peyton

Pine

Ramah

Roggen

Sedalia

Shawnee

Simla

Strasburg

Watkins

Wheat Ridge

Wiggins

Nearby places

Denver, CO

Twin Lakes, CO

Sherrelwood, CO

Welby, CO

Berkley, CO

Federal Heights, CO

Shaw Heights, CO

Contact Wimmer Roofing and Exteriors to confirm service at your address.

Aggregated review summary

reviews analyzed

Google 34 reviews

ARCO Review Findings

Wimmer Roofing and Exteriors is highly regarded for its professional, responsive team that effectively manages insurance claims and coordinates complex repairs. Customers consistently praise their high-quality workmanship, efficient one-day installations, and thorough cleanup practices.

5 recent reviews

אהרון ש.

Google · Feb 2026

I had a great experience with Wimmer Roofing and Exteriors. Brandon was professional, honest, and easy to communicate with throughout the process. The work was done on time and the quality was excellent. I highly recommend them to anyone needing roofing or exterior work.

Ken A.

Google

Wimmer Roofing has replaced my roof on more than 1 occasion. (due to hail) I trust them with my roof and exterior siding. Monica has been very responsive with any questions or concerns that may arise. This is a LOCAL company you can trust and not worry about dealing with a company based in another state. They are around for the long haul.

Steve D.

Google

Brandon worked directly with my insurance adjuster from start to finish. He emailed and explained the damage and repairs needed. This greatly increased the payout from my insurance company. He also arranged my solar panel removal and re-installation. Overall Brandon and his guys were awesome. Roof was stripped and completed in a day. Clean up around my house and my neighbors was thorough. Highly recommend Brandon and his crew.

Patricia P.

Google

Kudos to Brandon Hartman for having a roofing company that you can trust to do a job well done and employees that are honest, promotional and communicate with you on every step of the project. Monica Lowrie was the best Estimator and Project Manager I have ever experienced. She was on the job everyday and ensured that the project was completed as promised. If you are looking for a company you can trust a call to Brandon or Monica at Wimmer 6830 Broadway will meet your expectations. Thanks again for a job well done! You were the best.

Amy D.

Google

I've never had a great experience with getting a new roof. Mike Dvorak a sales manager was great and friendly, and explained so much about the roof and gutters we were getting. Then he explained to us about how the insurance was going to work, and what they covered and what our balance was. Mike is so professional, and him, Monica, and Brandon the owner took time to come by and make sure we were happy with the roof, and gutters. The crew was also very professional and made sure that there was no trash or nails left in our yard or driveway. I will recommend this Company to all of our friends and family. Thank you so much to everyone at Wimmer that made getting a roof and gutters easily.

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 Wimmer Roofing and Exteriors

Ready to request an estimate?

Call (720) 339-7247 or request a written estimate through www.wimmerroofing.com.

Call (720) 339-7247 Visit Website

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