Cooler weather is around the corner! Get your furnace ready for the heating season, give your A/C some end-of-season attention, and improve your indoor air quality as fall allergy season kicks into high gear.

🔥 $99 Furnace Tune-Up Special
Make sure your heating system is clean, safe, and ready before the first cold snap.

🔧 $35 OFF Any Service Repair
Take care of those HVAC issues now before you need your system the most.

🔥 $150 OFF a Single Unit Installation / $300 OFF a Full System Install
If your system is nearing the end of its life, fall is a great time to upgrade and prepare for the season ahead.

🌬️ 25% OFF Duct Cleaning
Fall allergens, dust, pet dander, and other debris can build up in your ductwork. Start the season with cleaner air circulating throughout your home.

❄️ Don’t Forget Your A/C!
Your cooling system worked hard all summer. An end-of-season A/C tune-up is a great way to address wear and tear now, so you're ready when warm weather returns.

🏆 Ask About Our Pot of Gold Maintenance Membership – Just $195/Year!

Make seasonal maintenance easy with:
-TWO annual tune-ups — A/C + Furnace
-Priority service scheduling
-No overtime fees
-10% OFF filters and replacement parts

One membership helps you stay ahead of both heating and cooling maintenance while saving throughout the year.

📞 Schedule your fall HVAC service today!
📍 St. Charles: 630-363-9067
📍 Crystal Lake: 815-344-0400
💻 www.mcnallyhvac.com