Kilbong "Gary" Chung, Owner · Established 2021
Accreditation Status
Cycle 2026
Status
Not Accredited
Review not yet completed
ARCO Accreditation is reserved for roofing businesses that complete a comprehensive review and meet ARCO's required qualification threshold. Not every business reviewed qualifies.
Issued only after successful review
Accreditation No.
Not Issued
Accreditation Status
Not Accredited
Accreditation Review
Not Completed
Qualification Status
Not Determined
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Public Record
Findings drawn from public records, manufacturer registries, and third-party review platforms — synthesized using ARCO Standard 2026.1.
Public Signals Reviewed
14
across 4 categories
Customer Review Rating
5.0/5.0
across 67 verified reviews
Years in Business
5+yrs
Founded 2021
Accreditation Review
Not Yet Completed
Qualification has not been determined
Accreditation Committee Review
No committee determination has been issued.
Not Yet ConductedThe 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.
Signal
SAM.gov federal exclusions
Result
No exclusions found
Checked August 2026
SAM.gov
Signal
Manufacturer certifications
Result
GAF Certified · CertainTeed ShingleMaster
Manufacturer programs
Signal
Years in operation
Result
5+ years continuous
Founded: 2021
Verified record
Signal
Owner/principal
Result
Kilbong "Gary" Chung
Manual collection
Signal
Website registration
Result
Registered: Jan 15, 2021
WHOIS/RDAP
Signal
Google Business Profile
Result
Proof Builders Co
Plymouth, Minnesota
Signal
Aggregated marketplace rating
Result
5.0 / 5.0 across 67 reviews
Google 5.0 (67)
Multi-source
Signal
Review volume
Result
67 stored public reviews
Multi-source
Signal
Customer review excerpts
Result
8 qualifying reviews on file
Multi-source reviews
Signal
BBB rating
Result
A+ / BBB Accredited
BBB Accredited since: Feb 19, 2025
BBB profile
Signal
OSHA findings
Result
No violations across 0 inspections
OSHA
Signal
BBB complaint history
Result
No complaints filed in the last 36 months
Years in business: 5
BBB profile
Public records and third-party platform data may change over time. ARCO does not guarantee ongoing third-party accuracy.
MN-260808-5001
·
Evaluated Aug 8, 2026
·
Independently verifiable at
RoofingContractors.org/verify/MN-260808-5001
Eligibility · All Cleared
ARCO automatically withholds accreditation when any of the following findings are present. Proof Builders Co.'s record was checked against each.
Active SAM.gov federal exclusion
OSHA willful violation or 3+ repeat violations on record
BBB rating of C, D, or F
Avg. customer rating < 4.0 (with ≥ 20 reviews)
Proof Builders Co. LLC is a Minneapolis, Minnesota-based contractor owned by Kilbong "Gary" Chung. The company provides a comprehensive range of exterior property solutions, including residential and commercial roofing, siding installations, and professional inspection and repair services.
Contact Proof Builders Co. to confirm availability for your project in Minnesota.
ARCO Review Findings
Proof Builders Co. provides professional and efficient roofing services, with customers frequently highlighting their expertise in managing insurance claims and their clear, consistent communication throughout the process. The company is consistently praised for high-quality workmanship, timely project completion, and thorough site cleanup after installations.
We had hail damage to our roof on September 21,2025. Within 1 day John was here to inspect our roof.On his recommendation we contacted our insurance company. Adjustor was here in 3 days. Accompanied by John, he did his inspection. Informed us we were due a full replacement. John helped with all the paperwork, explaining some of the details we did not quite understand. Within one week the crew arrived and completed the job in one day, using top grade materials. John was on site much of the day to keep track.We have our new roof and skylights, with gutters and covers to come. Amazing service and excellent work by everyone involved. We are 100% satisfied customers of Proof Buiders and highly recommend their services.
Gabe at Proof Builders Co was very attentive and helpful throughout this process, which included tons of advice which eventually helped us get the storm damage covered by insurance via the appraisal process! Cha-ching! There were a few hiccups (aren't there always?), but he was spot on with his guidance and our new roof looks great!
Proof Builders Co exceeded our expectations in every way. From the initial inspection to the final cleanup, their communication was clear and consistent. They were honest about what needed to be done, provided a fair estimate, and stayed on schedule. The roofing crew was hardworking, respectful, and paid attention to every detail. You can tell they take pride in their work. Our roof looks amazing, and the entire process was smooth and stress-free. It’s not easy finding a contractor you can truly trust, but Proof Builders Co delivered quality, professionalism, and peace of mind. Highly recommend to anyone needing roofing work!
We had an amazing experience with Proof Builders Roofing Company from start to finish! The entire team was professional, knowledgeable, and incredibly easy to work with. They explained the process clearly, showed up on time, and completed the job efficiently without cutting corners. The quality of the workmanship is outstanding, and our new roof looks fantastic. They also did a great job cleaning up afterward — you wouldn’t even know a major project had just been completed. If you’re looking for a reliable, honest roofing company that delivers top-notch results, I highly recommend them. We couldn’t be happier with the outcome!
My wife and I had an amazing experience with Proof Builders Co from start to finish! Their team was professional, punctual, and incredibly knowledgeable. They walked us through the entire roofing process, answered all of our questions, and made everything feel easy and stress-free. The crew showed up on time, worked efficiently, and kept our property clean throughout the project. The quality of the workmanship is outstanding — our new roof looks fantastic and we feel confident it’s built to last. If you’re looking for a trustworthy, reliable roofing company that truly cares about their customers, I highly recommend Proof Builders Co. Five stars all the way!
Review data aggregated from public sources · ARCO does not moderate third-party reviews
The difference between "good enough" and proven excellence. Only the top roofers in America earn ARCO Accreditation — recognition of true craftsmanship, ethics, and integrity.
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.
Contact Proof Builders Co.
Call (763) 999-6890 or request a written estimate through proofbuilders.com.