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Since 1969, Allied Air Conditioning & Heating has been the trusted air conditioning company for homeowners throughout the Northwest Suburbs of Chicago. As a locally owned and operated AC contractor, we specialize in expert service, honest guidance, and lasting comfort solutions.

Whether you need a fast repair, energy-saving upgrade, or a fresh air conditioner quote, we’re here to help. Our NATE-certified technicians work with all major brands and offer personalized recommendations tailored to your home’s size, layout, and budget.

Our Full Range of Air Conditioning Services

Air Conditioning Repair

Experiencing warm air, unusual noises, or complete system failure? Our reliable repair team is available when you need us most. We diagnose problems quickly and restore your system’s performance using quality parts and expert craftsmanship.

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Air Conditioning Maintenance

Air conditioning maintenance helps your system last longer, run more efficiently, and avoid costly repairs down the road. Our comprehensive AC tune-ups ensure every component, from filters to refrigerant, is in peak condition before summer hits.

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Air Conditioning Installation

Time to replace your old unit? We offer expert installation of high-efficiency air conditioners that can help lower energy bills and improve overall comfort. As a Carrier Factory Authorized Dealer, we provide top-quality systems and help you find the perfect fit.

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High-Velocity HVAC Systems

If your home wasn’t built with central ductwork, high-velocity HVAC is the perfect retrofit solution. These systems use flexible mini-ducts and compact equipment to deliver powerful, even cooling, without major renovations.

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Ductless HVAC

Ductless mini-split systems are ideal for additions, attics, sunrooms, or entire homes without traditional ductwork. Enjoy zoned comfort, quiet operation, and improved energy efficiency while keeping installation fast and minimally invasive.

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Duct Repair & Maintenance

Poor ductwork leads to airflow loss, uneven temperatures, and wasted energy. Our team inspects, seals, and repairs damaged ducts to restore performance and help you get the most out of your AC system.

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Heat Pumps

Looking for a versatile solution that heats and cools your home year-round? Our high-efficiency heat pumps are quiet, reliable, and perfect for moderate climates. We install and service all types of heat pump systems.

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Preventative Maintenance

Don’t wait for your system to break down. Preventive maintenance ensures optimal performance and catches small issues before they become costly problems. We tailor each maintenance visit to your equipment and usage patterns.

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Annual Maintenance Plan

Our Annual Maintenance Plan includes regular tune-ups, priority scheduling, and discounts on repairs. It’s the easiest way to protect your HVAC investment and enjoy peace of mind year-round.

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Emergency AC Services

When the heat rises and your AC quits, you can count on Allied. We’re available 24/7 for emergency service, providing fast diagnostics and dependable solutions to get your system back up and running.

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Why Choose Allied Air Conditioning & Heating?

Northwest Chicagoland residents choose Allied’s AC contractors for dependable, detail-oriented service with a customer-first approach.

Here’s what sets us apart:

  • 16-Time Carrier President’s Award Winner: Recognized for outstanding customer service and operational excellence every year for the past 16 years.
  • Over 54 Years of Experience: We’ve been helping homeowners in the Northwest Suburbs stay comfortable since.
  • 24-Hour Emergency Service: Comfort can’t wait. Our technicians are available around the clock for urgent repairs.

From our highly trained, NATE-certified technicians to our honest recommendations and commitment to quality, Allied Air Conditioning & Heating is the team you can trust to keep your home cool and comfortable, no matter what.

Request a Personalized Air Conditioner Quote

Looking for a reliable air conditioning company to keep your home cool and efficient? Allied Air Conditioning & Heating is ready to help. Whether you’re replacing an old system or need a quick repair, our team is just a call or a click away.

Contact Us Today!

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Schedule Service Today!

Call 847-262-3349 to schedule service, or click here for a free quote.
Experience the Allied difference today.

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Allied Air Conditioning & Heating

What Our Customers
Say About Us

We moved into a new house recently and Allied was recommended to us by my best friend.

We had them install a new humidifier and zone the system. On moving day (Friday) at 3 pm when we showed up we found the AC wouldn't shut off. I texted my tech with hopes of getting on the schedule for the following week since it was late Friday. He said someone would be there in 30 min. They stayed for 2 hours and fixed a faulty wire and it was all covered under warranty. Can't argue with customer service like that. Highly recommend if you want dependable folks that are very responsive.

Molly Struve

Palatine, IL
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We were extremely pleased by the service that Allied provided us.

Our A/C went out over the 4th of July we knew we needed a new system installed asap (we knew it was on its last leg). We contacted them and two other companies for comparison quotes. Allied was out here first thing July 5th to assess and provide a quote. In the end we decided to go with them. They were professional, thorough and very detailed in options and quotes.

Donna Rosen

Palatine, IL
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Moved into the neighborhood and Allied HVAC had been recommended from my brother to replace both our furnace and ac unit.

Very professional from the start with a quote from Chris B. in sales which lead to an install date of my choice. On the day of the installation Jeff and Jackson arrived right on time as requested. The installation was prompt and done in a timely matter, and it they explained exactly what needed to be done from start to finish.

J. Almdale

Libertyville, IL
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