HVAC Parts Distributors in Denver: Manufacturer Reps, Wholesalers & Supply Houses
Finding the right HVAC parts source in Denver depends on what you need: OEM equipment from a specific manufacturer, universal replacement parts, or specialty items. This guide breaks down the different types of HVAC distributors and when to use each.
Understanding HVAC Distribution
Unlike plumbing or electrical, the HVAC supply chain has distinct tiers that affect where you source parts:
- Manufacturer Representatives: Authorized distributors for specific brands (Carrier, Trane, Lennox, etc.). Required for OEM equipment, warranty parts, and factory support.
- Full-Line Wholesalers: Stock parts from multiple manufacturers plus universal components. Best for service techs who need variety and availability.
- Specialty Suppliers: Focus on specific product categories like IAQ, refrigeration, or controls.
Denver HVAC Distributor Comparison
Use this table to quickly identify the right supplier based on your needs: OEM equipment, universal parts, specific brand support, or general supplies.
| Distributor | Type | Primary Brands | Best For |
|---|---|---|---|
| Lohmiller & Company | Manufacturer Rep | Carrier, Bryant, Payne | Carrier/Bryant/Payne equipment, factory warranty support, OEM parts |
| Trane Denver (Trane Technologies) | Manufacturer Rep | Trane, American Standard (commercial) | Trane commercial equipment, controls, parts, and factory service |
| Denver Winair Co. (Winsupply) | Manufacturer Rep + Wholesaler | American Standard, Rinnai, Arzel Zoning | American Standard residential equipment, tankless water heaters, zoning systems |
| Johnstone Supply | Full-Line Wholesaler | Honeywell/Resideo, Emerson/White-Rodgers, Genteq | Parts, universal controls, refrigerants, tools, supplies - the 'one-stop shop' for service techs |
| Ferguson HVAC | Full-Line Wholesaler | Multiple equipment lines, Broad parts inventory | HVAC equipment, parts, and supplies with plumbing/PVF cross-over capability |
| Winsupply HVAC (Various Locations) | Full-Line Wholesaler | Varies by location, American Standard (via Denver Winair) | HVAC supplies, refrigeration parts, sheet metal, accessories |
Manufacturer Representatives
These distributors are authorized by specific manufacturers to sell their equipment and OEM parts. Use them when you need factory warranty support, OEM replacement parts, or are purchasing new equipment.
Lohmiller & Company
Manufacturer RepLohmiller & Company is Colorado's authorized Carrier, Bryant, and Payne distributor. If your business standardizes on Carrier equipment or you need factory warranty support, Lohmiller is the go-to source. They stock OEM parts and provide technical support for the Carrier family of brands.
Primary Brands
- Carrier
- Bryant
- Payne
Trane Denver (Trane Technologies)
Manufacturer RepTrane's Denver office serves as the factory sales and service representative for Trane commercial HVAC equipment. For commercial Trane installations, replacements, and OEM parts, this is your direct factory connection.
Primary Brands
- Trane
- American Standard (commercial)
Denver Winair Co. (Winsupply)
Manufacturer Rep + WholesalerDenver Winair is Colorado's authorized American Standard Heating & Air Conditioning distributor. Part of the Winsupply network, they combine manufacturer representation with full-line HVAC supplies including sheet metal, flex duct, line sets, and accessories.
Primary Brands
- American Standard
- Rinnai
- Arzel Zoning
Full-Line Wholesalers
These distributors stock parts from multiple manufacturers plus universal components. They're the go-to source for service technicians who need variety, availability, and competitive pricing on everyday parts.
Johnstone Supply
Full-Line WholesalerJohnstone Supply is the largest HVAC/R parts wholesaler in North America. Their Denver location stocks universal controls, motors, capacitors, contactors, refrigerants, and thousands of aftermarket parts. They're known for their 'model-to-part' lookup tools and extensive truck stock programs.
Key Products/Brands
- Honeywell/Resideo
- Emerson/White-Rodgers
- Genteq
- Nu-Calgon
- Diversitech
- Bosch
Denver Presence
Denver + multiple Colorado locations
Ferguson HVAC
Full-Line WholesalerFerguson's Denver HVAC location provides heating and cooling supplies alongside their extensive plumbing and PVF inventory. Useful when your scope crosses trades or you need one account for multiple material types.
Key Products/Brands
- Multiple equipment lines
- Broad parts inventory
Winsupply HVAC (Various Locations)
Full-Line WholesalerWinsupply operates multiple HVAC-focused locations in the Denver metro area. Each location may have different manufacturer affiliations but shares national buying power and online ordering capabilities.
Key Products/Brands
- Varies by location
- American Standard (via Denver Winair)
Specialty Suppliers
These distributors focus on specific product categories or manufacturer lines that may not be well-covered by general wholesalers.
Century Distributing
Century Distributing focuses on specialty HVAC products including indoor air quality equipment, humidifiers, and related accessories.
Best for: Indoor air quality, specialty HVAC products, hard-to-find items
Visit WebsiteGemaire Distributors
Gemaire is a major Rheem/Ruud distributor with coverage in Colorado. If you standardize on Rheem equipment or need OEM Rheem parts, Gemaire is a key source.
Best for: Rheem/Ruud equipment and parts, ductless systems
Visit WebsiteHow to Choose the Right HVAC Supplier
Start with the equipment brand
If you're installing or servicing Carrier equipment, start with Lohmiller. For Trane commercial, go to the Trane Denver office. For American Standard residential, use Denver Winair.
Use wholesalers for universal parts
For motors, capacitors, contactors, universal controls, refrigerants, and tools, Johnstone Supply or Ferguson HVAC will have better availability and pricing than manufacturer reps.
Consider warranty implications
For warranty work, you'll typically need OEM parts from the manufacturer rep. Aftermarket parts from wholesalers may void equipment warranties on newer systems.
Maintain relationships at multiple suppliers
Most successful HVAC contractors keep accounts at 2-3 suppliers: one manufacturer rep for their primary equipment line, one full-line wholesaler for parts, and possibly one backup source.
Pro Tip: Use Johnstone Supply's model-to-part lookup tool to cross-reference OEM part numbers to universal replacements. This can help you find in-stock alternatives when the OEM part has a long lead time.
FAQ: Denver HVAC Distributors
What's the difference between a manufacturer rep and a wholesaler?
A manufacturer rep (like Lohmiller for Carrier) is authorized by a specific manufacturer to sell their equipment and OEM parts, often with exclusive territory rights. A wholesaler (like Johnstone Supply) stocks parts from many manufacturers plus universal components, focusing on availability and variety rather than brand exclusivity.
Where can I get Lennox equipment and parts in Denver?
Lennox primarily distributes through their own dealer network. Contact Lennox directly or check their dealer locator for authorized Lennox dealers in the Denver area. Johnstone Supply may stock some Lennox aftermarket parts.
Can I use aftermarket parts for warranty repairs?
Generally no. Most manufacturer warranties require OEM parts for warranty repairs. Using aftermarket parts on a system still under warranty could void the warranty. Always check the manufacturer's warranty terms.
Which supplier has the best prices?
It varies by product. Manufacturer reps typically have better pricing on their specific brand's equipment and OEM parts. Wholesalers like Johnstone usually have better pricing on universal parts, consumables, and tools. Compare quotes for your most-purchased items.
Can SpeedyMEP pick up from any of these distributors?
Yes! SpeedyMEP delivers from any HVAC supply house in the Denver metro area. Place your order with the distributor, then request SpeedyMEP pickup. We'll deliver directly to your job site.