Questions?
Contact Us! Whether it's determining how many vents are needed or where to place them, O'Hagin's customer service team provides immediate support. Reach us toll free at
800/394-3864
or fill out an information form on the Contact Us page.


FirstSource link
Additionally, O'Hagin's, Inc. offers free architectural design and support services. For information regarding these programs, please contact: Kelly Carlson, Manager - Architectural Support and Design Services

Phone: (707)303-3665
Fax: (707) 588-5772
Email: kcarlson@ohaginvent.com

For your planning, design, installation, post-installation and customer education needs, O'Hagin's, Inc. offers a range of free services:

Pre-Construction Services

  • An attic ventilation analysis that calculates the number of vents needed based on known local building codes and offers specific recommendations for placement.
  • Consultation services on an individual or group basis.
  • Onsite presentations to discuss how O'Hagin's attic ventilation solutions can work for you.
  • Attic Ventilation Analysis (664 KB PDF file. To download, right click on link and choose "Target/Save As." Then save the file to your computer.)
  • Fillable Checklist (296 KB PDF file. To download, right click on link and choose "Target/Save As." Then save the file to your computer.)

Custom Product Design

  • Custom ventilation system designs to match unique roofing or architectural challenges.
  • One-on-one assistance to discuss your needs and create the right solution for your job.

On Site Installation Instruction

  • Onsite training in both English and Spanish for your field crews demonstrating the ease of installation of O'Hagin's products.

Pre- and Post-Installation Support

  • Meetings with homeowners, consultants, building code officials, or other members of your design and construction team.
  • Support regarding any aspect of our products before or after installation.

Other Services