Established 2023
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
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.
Provide your contact information below. ARCO will review your inquiry and determine whether your business may be invited to complete the accreditation review process.
Public Record
Findings drawn from public records, manufacturer registries, and third-party review platforms — synthesized using ARCO Standard 2026.1.
Public Signals Reviewed
18
across 4 categories
Customer Review Rating
4.8/5.0
across 177 verified reviews
Years in Business
3+yrs
Founded 2023
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 Master Elite · Owens Corning Preferred
Manufacturer programs
Signal
Years in operation
Result
3+ years continuous
Founded: 2023
Verified record
Signal
Website registration
Result
Registered: Sep 17, 2022
WHOIS/RDAP
Signal
Google Business Profile
Result
Grandmark Service Company
Sacramento, California
Signal
Aggregated marketplace rating
Result
4.8 / 5.0 across 177 reviews
Google 4.8 (177)
Multi-source
Signal
Review volume
Result
177 stored public reviews
Multi-source
Signal
Customer review excerpts
Result
7 qualifying reviews on file
Multi-source reviews
Signal
BBB rating
Result
A-
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: 3
BBB profile
Public records and third-party platform data may change over time. ARCO does not guarantee ongoing third-party accuracy.
CA-260808-4272
·
Evaluated Aug 8, 2026
·
Independently verifiable at
RoofingContractors.org/verify/CA-260808-4272
Eligibility · All Cleared
ARCO automatically withholds accreditation when any of the following findings are present. Grandmark Roofing'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)
Grandmark Roofing is a roofing contractor based in Sacramento, CA. The company specializes in providing professional roofing services to the local area.
Contact Grandmark Roofing to confirm availability for your project in California.
ARCO Review Findings
Grandmark Roofing is consistently praised for its professional, efficient, and dependable service. Customers frequently highlight the team’s timely responsiveness and their willingness to go above and beyond to complete repairs effectively.
Posting on behalf of helmy. I like the job that Joey and the crew did to my roof. I want to thank Joey especially for being so nice. Very easy to talk to and very helpful.
Excellent service from financing to completion of the project. Angel and Antonio are efficient with a great work ethic. Antonio the project manager is communicative and you are given frequent updates until completion of job. Thank you so much I highly recommend Grandmark roofing.
Grand mark Roofing was very professional from beginning to end. They came to inspect my roof and they were back out same week to work on it. I had the privilege to talk with three team members and all of them made me feel at ease .
Good work, done on time and even did a little more of the gutter guard than what was quoted. Only issue was communication with the techs…but, the estimator (Dave) was easy to get a hold of and could help to answer any questions. Will use Grandmark in the future.
Dave showed up on time. He was professional and quick to assess the roofs leak issues. Presented a fix for the roof and a plan to repair it. Followed through with the fix in a timely manner. Would recommend GrandMark for roofing issues.
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 Grandmark Roofing
Call (559) 282-3568 or request a written estimate through www.grandmarkservicecompany.com.