HVAC Fittings LLC

HVAC Fittings LLC operates as a union Sheet Metal Workers Local 265 fabrication shop in Addison, Illinois, serving the broader Chicagoland commercial construction market since 2005. Based at 479 S Vista Ave in Addison, the company maintains a 15,000-square-foot in-house fabrication facility where every piece is built to SMACNA specifications. The business holds a perfect 5.0-star rating from 18 verified Google reviews, with customers consistently praising turnaround speed and precision craftsmanship. Service areas include DuPage County (Addison, Elmhurst, Lombard, Naperville, Wheaton) and Cook County (Schaumburg, Oak Brook, Downers Grove, Aurora, Bensenville, Itasca).

What distinguishes HVAC Fittings is their commitment to in-house fabrication as the core business model, they don't outsource or subcontract any ductwork manufacturing. Their Addison facility handles square and spiral ductwork from 16 gauge to 24 gauge, working with galvanized steel, black iron, stainless steel, paint grip, and aluminum. Pittsburgh, snap lock, and welded seams are available alongside TDC, S&D, and Ductmate connections. The company also fabricates roof curbs, adaptors, rails, and coil line components. This direct-to-contractor model means mechanical contractors receive finished products rather than coordinating multiple suppliers, every piece carries the SMACNA compliance standard.

Customer stories from reviews reveal the team's responsiveness: Mario Holguin credited the team with completing a job on just one day's notice, turning around faster than competing shops. Eric described a custom fabrication that matched drawings perfectly and included sealing during assembly, a detail many contractors skip. Karla in the front office earned specific recognition from Anthony Valadez for service quality. Omar Rajab noted he's relied on the company for years across multiple fitting types including spiral, snap lock, adjustable elbows, and welded fittings without experiencing issues.