RELIABILITY IS IN THE AIR.

Why Choose Mainline?

At Mainline®, we offer proven technology in each of our high-performing products, along with comprehensive warranties and excellent support. We take pride in putting people and results above all else. Our residential and commercial HVAC products meet a wide range of market needs.

At Mainline® our goal is to provide high-quality heating and cooling systems that keep you in total control of your home’s comfort. So, relax and enjoy that just right feeling with Mainline.

Mainline® is your connection to all the right products to keep everyone comfortable. Whether it’s easy-service features or a variety of capabilities, you can count on MAINLINE® to provide a reliable comfort system for any customer.

Advanced Technology

7 Segment LED’s improve diagnostics for better service and fewer nuisance calls. QR Codes provide instant system data, and all gas products use the proven spark ignition system.

Reliable Parts

Scroll Compressors minimize install costs and maximize flexibility for contractors. Powder coat finish and rust resistant screws are proven through 1500-hour salt spray testing, with a Composite Base Pan that dampens sound and eliminates corrosion.

Quality Manufacturing

Hemmed Edges deliver a smooth appearance with no sharp corners, fully compliant with ISO 9000 Standards. Rheem® manufacturing targets 50% lower greenhouse gas emissions and zero waste to landfill.

Superior Quality

Recognized, industry leading components with a 100% Run Test on all products. Sealed doors on 80’s & 90’s gas furnaces reduce noise, with less than 2% leakage.

Excellent Warranty

10 year parts warranty on Mainline Elite Products (Product registration required). See warranty document for full details.

Nationwide Service

Mainline HVAC products can be purchased at many convenient locations throughout the United States.

Get Started Today with Mainline Plus

Selling and managing extended service agreements has never been easier. Start using our easy-to-use portal to add labor coverage on all your HVAC equipment installations.

We offer a variety of competitive labor reimbursement options to meet your business needs.

Mainline Plus Login

Stay Cool With The Assurance Of Our Excellent Limited Warranty Coverage.

Complete warranty details are available for each product on this site. To view warranty certificate for a product, simply follow the link found on each product page.