Seiho International, Inc.

Seiho International, Inc. operates from 120 W. Colorado Blvd. in Pasadena, CA 91105, serving the greater Los Angeles area with a specialized focus on commercial and high-end residential HVAC distribution. Founded in 1987, the company functions primarily as a manufacturer and supplier of air diffusion products, including spot diffusers, ceiling mini diffusers, round grilles, and volume adjustable grilles. Their project gallery showcases installations at Time Out Market Chicago, The Del Mar Pasadena, AVA Arts District, Bell Pasadena, and Vespaio Restaurant, demonstrating their reach across multiple metropolitan markets. The company maintains phone lines at (626) 395-7299 for retail inquiries and (800) 248-0030 for contractor distribution requests, with standard business hours Monday through Friday from 8:30 AM to 5:30 PM.

What distinguishes Seiho International is their dual focus on design professionals and contractor networks. The company offers Revit BIM families for architects and engineers integrating their products into building designs, and maintains a digital catalog (Volume 4) for specification purposes. Their product line extends beyond standard diffusers to include specialty items like TurboNozzles, dryer vents, and vent caps. Seiho participates annually in the AHR Expo, with upcoming exhibitions scheduled for AHR 2026 in Las Vegas (booth #C2718) and AHR 2025 in Orlando (booth #1121), positioning them within the professional HVAC trade community rather than the retail service market.

Since customer reviews are not available for this listing, prospective clients should evaluate Seiho International based on their project portfolio and product specifications rather than residential service testimonials. The company serves a B2B model, supplying air distribution equipment to contractors, architects, and facility managers rather than providing on-site HVAC repair or maintenance services to homeowners.