Premium Home Service Brands We Trust
We Come to Your Home
Our expert technicians arrive promptly.
Satisfaction Guaranteed
We stand behind our work with a 100% satisfaction guarantee.
Same Day Service
For urgent needs, call before noon, and we’ll aim to be there today.
Trusted HVAC Solutions Since 1965
Expert Repair & Installation for All Major Heating and Cooling Brands
While we are proud to be a Lennox Premier Dealer, our NATE-certified technicians have the specialized tools and training to service every major HVAC brand. From emergency furnace repairs during a Chicago freeze to installing high-efficiency Mitsubishi ductless systems, we ensure your home comfort system—regardless of its make or model—runs at peak performance.
Brands We Frequently Service Include:
- Lennox: As a Premier Dealer, we offer expert installation and warranty service.
- Carrier & Bryant: Efficient repairs for these widely used systems in North Shore homes.
- Trane & American Standard: Durable solutions for long-lasting home comfort.
- Mitsubishi Electric: The gold standard for ductless mini-split and heat pump technology.
Premium Plumbing & Sewer Care
Reliable Service for Kohler, Moen, and Top Plumbing Manufacturers
Your home’s infrastructure depends on quality, which is why we specialize in the repair and installation of industry-leading plumbing brands like Kohler, Moen, and Delta. Whether you need a Bradford White water heater replacement or a specialized Zoeller sump pump installation to protect your basement, our licensed plumbers provide “The AA Way” level of precision to keep your water flowing.
Plumbing & Sewer Equipment Expertise:
Fixtures
Installation and repair for Kohler, Moen, Delta, and Grohe.
Water Heaters
Specialized service for Bradford White, Rheem, and Navien Tankless systems.
Sump Pumps
Reliable protection with Zoeller and Liberty Pumps.
Sewer Solutions
Advanced trenchless repair for all residential sewer line brands.
Safe & Modern Electrical Systems
Authorized Service for Generac, Square D, and Smart Home Power
Electrical safety requires components you can trust, which is why we work with gold-standard brands like Square D for panel upgrades and Generac for whole-home standby generators. Our expert electricians also handle modern integrations, including Lutron lighting controls and EV charging stations, ensuring your North Shore home stays powered, safe, and future-ready.
Electrical Brands We Trust:
- Backup Power: Authorized installation and maintenance for Generac and Honeywell generators.
- Panels & Circuitry: High-quality components from Square D, Siemens, and Eaton.
- Smart Home & Lighting: Modern controls by Lutron, Leviton, and Philips Hue.
- EV Charging: Expert setup for Tesla Wall Connectors, JuiceBox, and ChargePoint.
Elite Equipment Maintenance
Servicing The Industry's Top HVAC And Plumbing Brands
Your home depends on high-quality equipment to stay comfortable, safe, and efficient throughout the year. At AA Service Co., we understand that premium performance starts with premium products. That is why our certified technicians are trained to install, maintain, and repair the most trusted names in heating, cooling, and plumbing systems. From high-efficiency A/C systems to reliable water heaters, we handle it all.
Since 1967, homeowners across Northbrook, Evanston, Skokie, and throughout Chicagoland and the surrounding areas have relied on us to keep their essential systems running smoothly. We partner with industry-leading manufacturers to ensure you receive the best parts and the most reliable warranties available. Whether you need a quick repair for your current setup or a full replacement with a modern upgrade, our team has the brand-specific knowledge required to get the job done right.
Bringing over five decades of brand expertise to Northbrook, Winnetka, and Chicagoland and the surrounding areas.
How We Work
A Simple Process For Premium Equipment Care
Getting the right service for your specific brand should never be complicated. We have refined our workflow to guarantee a smooth, straightforward experience from your initial call to the final system check.
Schedule Your Visit
Contact us by phone or online to book an appointment that fits perfectly into your busy day.
Expert Dispatch
We send a fully equipped, brand-certified technician directly to your Northbrook, Wilmete, or other home in Chicagoland and the surrounding areas.
Thorough Diagnosis
Our experts carefully inspect your equipment to find the root cause and provide clear repair options.
Professional Workmanship
Upon your approval, we complete the installation or repair using manufacturer-approved parts and methods.
Final Quality Check
We test your system completely to ensure it operates at peak performance before we leave your property.
Top-Rated Service
Recognized For Excellence In Chicagoland And The Surrounding Areas
Earning the trust of our community is a responsibility we take seriously. Our consistent five-star reviews reflect our dedication to honest pricing, punctual arrivals, and flawless execution.
Comprehensive Expertise
Leading Brands We Expertly Install And Service
Lennox Heating & Cooling Systems: As a Lennox Premier Dealer, we offer exceptional installations, repairs, and maintenance for the full line of Lennox A/C systems, furnaces, and air source heat pumps. Our technicians undergo continuous training to master Lennox’s innovative, energy-efficient technologies.
WaterFurnace Geothermal Solutions: Harness the power of the earth with sustainable heating and cooling. We specialize in WaterFurnace geothermal heat pumps, providing eco-friendly solutions that drastically lower your utility bills while offering unmatched reliability and comfort for homes in Lake Forest, Green Oaks, and throughout Chicagoland and the surrounding areas.
NTI Boilers: For homes utilizing radiant heat or hydronic systems, NTI Boilers deliver exceptional efficiency and warmth. Our team is fully qualified to handle intricate NTI boiler installations, routine maintenance checks, and emergency repairs to keep your home cozy all winter long.
Unico Small-Duct Systems: Older homes and custom builds often lack the space for traditional ductwork. We are certified experts in Unico Systems, offering high-velocity, small-duct heating and cooling solutions that fit seamlessly into your architecture without compromising performance.
Honeywell & Aprilaire Indoor Air Quality: Breathe easier with advanced indoor air quality products from Honeywell and Aprilaire. We install smart thermostats, whole-home humidifiers, air purifiers, and ventilation systems designed to create a healthier, more comfortable living environment for your family.
Ready For Expert Service?
Maximize The Lifespan Of Your Home Equipment
Do not trust your premium heating, cooling, or plumbing systems to just anyone. Let the brand-certified experts at AA Service Co. provide the precise care your equipment needs to run efficiently for years to come.
Common Inquiries
Frequently Asked Questions About Brands We Service
Do you use manufacturer-approved replacement parts?
Yes, we always prioritize using original equipment manufacturer parts whenever possible. This ensures compatibility, maximizes performance, and protects your system’s existing warranty.
Are your technicians certified to work on my specific brand?
Our team undergoes rigorous, ongoing factory training for the major brands we carry, such as Lennox, WaterFurnace, and NTI Boilers. This specialized education guarantees we repair and install your equipment to the exact factory specifications.
Can you service a brand even if you did not install it?
Absolutely. While we specialize in installing specific industry-leading products, our highly trained technicians have the extensive knowledge required to diagnose, repair, and maintain virtually any make or model of HVAC or plumbing equipment.
Do brand warranties cover your repair services?
If your equipment is currently under a valid manufacturer warranty, we can often perform the necessary repairs using covered parts. We will happily review your warranty details to help you understand your coverage and out-of-pocket costs.
How often should I have my premium HVAC equipment serviced?
Regardless of the brand, we strongly recommend scheduling professional maintenance at least twice a year. You should book an A/C tune-up in the spring and a heating system inspection in the fall to maintain peak efficiency.
Let Us Help You Find The Right Solution
Navigating the world of home service equipment can be overwhelming, but you do not have to do it alone. If you are unsure which brand is right for your upcoming installation or if you need to know if we can repair your specific model, our friendly team is here to help. Reach out to AA Service Co. today to discuss your options with a knowledgeable professional.
Book Your Appointment Today
Trust The Local Brand Experts At AA Service Co.
Experience the peace of mind that comes from hiring fully certified, highly trained professionals. Contact AA Service Co. to schedule your repair, maintenance, or installation, and ensure your premium home equipment gets the premium care it deserves.