Third-Party Building Product Certification, Backed by 125 Years of Engineering Expertise
What we do
TwiningConsulting is a nationally accredited third-party certification bodyspecializing in the testing, evaluation, listing, and certification of buildingproducts. Manufacturers bring us their product; our engineers verify it throughindependent lab testing, technical review, and ongoing factory qualitysurveillance — then issue a certification that code officials, architects, andbuilders can rely on.
Ourprocess, in short:
- Independent laboratory testingto the applicable ASTM, ICC-ES, ANSI, or ACI standard
- Engineering review andtechnical evaluation
- Certification listing issuedupon compliance
- Ongoing factory inspections andquality surveillance to keep the listing valid
Certificaion Categories
Don't see your product listed? Most building products canbe evaluated under a custom acceptance criteria — contact our team to discussscope.
Why Twinning
Technology andtest equipment only matter if the certification behind them is credible. TwiningConsulting brings decades of engineering judgment to every listing.
- A2LA-accredited to ISO/IEC17065 — recognized nationally by code officials and evaluation service agencies
- In-house engineering review,not just pass/fail lab results
- Ongoing factory surveillancekeeps certifications valid year over year, not just at initial listing
- One point of contact fromapplication through final certification and renewal
- Deep bench across concrete,plastics, fenestration, roofing, and structural products — most manufacturersonly need one partner
Consulting for Evaluation & Certification Services
Beyond testingand certification, our team supports manufacturers through the full evaluationand code-approval process, working directly with evaluation service agencies onyour behalf.
How It Works
Certificationprocess, start to finish
Frequently Asked Questions
Whatdoes third-party product certification mean?
An independent,accredited body (not the manufacturer), verifies your product meets arecognized standard. Code officials and evaluation agencies rely on thatindependence.
How long does certification take?
Timelines varyby product category and testing scope. Contact our team for a project-specificestimate.
What products can Twining Consulting certify?
Twelvecategories today, spanning insulation, plastics, adhesives, EIFS, structuralpanels, fenestration, roofing, modular housing components, anchors,water-resistive barriers, gas appliances, and shipping container structures.Custom scopes are available on request.
Does certification expire?
Yes.Certifications are maintained through ongoing factory inspections and qualitysurveillance, not a one-time test.
Is Twining Consulting accredited?
Yes, TwiningConsulting (dba RADCO), is A2LA-accredited to ISO/IEC 17065:2012, CertificateNo. 7770.01, valid to May 31, 2028.
Ready to get your product certified?
Whether you'rebringing a new building product to market or renewing an existing listing,Twining Consulting’s certification team is ready to scope your project.
Looking for an existing listing or certification report?
