What manufacturer certifications does Modex hold?
Modern Exterior Systems (Modex) holds six manufacturer certifications: CertainTeed ShingleMaster, Malarkey Emerald Pro, Atlas Pro+, LP SmartSide Preferred Contractor, and James Hardie Preferred Contractor. These certifications enable extended manufacturer warranty registration on every install. We are NOT GAF Master Elite, ProVia Authorized, Kolbe Authorized, Pella Authorized, or DaVinci Authorized — those we install but don't claim certification. We also install EDCO Steel Siding; EDCO doesn't offer a contractor certification, so we don't claim one.

Credentials
Why certifications matter
Manufacturer certifications gate access to extended warranties and verified-installer status. Without them, contractors can install products but homeowners lose warranty coverage and recourse if something fails. Modex carries six manufacturer certifications by deliberate choice.
Certified
CertainTeed ShingleMaster certification
Modex is certified at the ShingleMaster level, CertainTeed's contractor credential for shingle installations. This certification enables ShingleMaster-only warranty registration on Landmark Pro, Presidential Shake TL, Patriot, and the full CertainTeed lineup. Without ShingleMaster registration, manufacturer warranty coverage is severely limited.
- Extended warranty eligibility
- Verified installer status
- Full product coverage

Certified
Malarkey Emerald Pro certification
Modex holds Malarkey's Emerald Pro certification, required to register Malarkey Vista, Highlander, and Legacy installations under the full manufacturer warranty including SBS-modified rubberized asphalt coverage. This certification ensures your roofing system qualifies for extended protection.

Certified
Atlas Pro+
Extended warranty coverage
Coverage
What Atlas Pro+ means
Modex is Atlas Pro+ certified, which is what lets us register Atlas's Signature Select extended warranty — up to 20 years non-prorated. The credential is only half of it: the coverage also requires the complete Signature Select system, which is how we install every Atlas roof regardless. This represents one of the longer non-prorated coverage windows available on standard asphalt shingles, protecting your investment for decades.

Certified
LP SmartSide Preferred Contractor
Modex installs LP SmartSide engineered wood siding under the LP Certified Installer program. This certification is required for full LP SmartSide product warranty registration, including the 50-year substrate coverage that protects against rot and structural failure.
- Full product warranty eligibility
- 50-year substrate protection
- Verified installation methods


Certified
James Hardie Preferred Contractor
Modex holds the Preferred Contractor designation with James Hardie, required for full HardieZone climate-adjusted product warranty plus the 15+ year ColorPlus paint warranty on factory-finished Hardie products. This status ensures your fiber cement siding receives complete manufacturer backing.

Installer
EDCO Steel Siding installer
Modex installs EDCO steel siding (Entex, Premier Series). EDCO doesn't offer a contractor certification program, so we don't claim one — but we install to spec on the hidden-fastener pattern that maintains EDCO's full product and paint warranty.
- Hidden-fastener installation expertise
- Install to EDCO's spec for warranty eligibility
- Full EDCO product coverage


BBB A+ rating
Modex maintains active accreditation with the Better Business Bureau and holds an A+ rating. Accreditation requires a documented complaint-handling process and verified business practices.
NRCA Member #1016569
Active member of the National Roofing Contractors Association. NRCA membership signals commitment to industry-wide standards and continuing education in roofing practices.
Minnesota License BC762305
Active Minnesota Department of Labor and Industry contractor license. Verifiable through state lookup to confirm Modex's legal standing and compliance with state regulations.
Questions
Common questions about contractor certifications and warranty coverage.
Ready to work with a certified contractor?
Modex's six manufacturer certifications unlock extended warranties and verified installation status. Call us today to discuss your roofing, siding, or window project.

About Modex
Six certifications. Nine verified credentials. One Eden Prairie contractor.
Modern Exterior Systems (Modex) is a women-owned roofing, siding, and window contractor based in Eden Prairie, Minnesota. We holdsix manufacturer certifications, BBB A+ rating, NRCA membership, and an active Minnesota contractor license. Call 952-206-6339 for a free estimate.






Further reading
Deeper writeups on the topics this page covers — written for homeowners by a Twin Cities installer.

April 16, 2026
How to Choose a Roofing Contractor in Minnesota: A Credential Checklist Most Homeowners Miss
Hiring a Minnesota roofer? The credentials to check before you sign — license, insurance, certs, warranty — and the red flags people miss. 952-206-6339.

July 10, 2026
What a New Roof Costs in the Twin Cities — 2026
Real 2026 numbers: what asphalt, Class 4, metal, and cedar actually cost here — what moves the price, and what insurance really covers.

June 8, 2026
Best Shingles for Minnesota Weather: A Contractor's Honest Ranking
MN contractor ranks the best shingles for our climate: freeze-thaw, hail, wind, ice dams. CertainTeed, Malarkey, the truth on the rest.

