Open 7 Days a Week

Heating, Cooling, & IAQ Services

Buffalo Grove, IL


Are you a resident in Buffalo Grove in need of HVAC repair, maintenance or new system installation? Ultimate HVAC is your heating, cooling, IAQ and duct cleaning specialist in Cook County. We offer residential and commercial service for furnaces, air conditioners, boilers, tank and tankless water heaters, IAQ systems and ductless mini splits. If you need repair, planned seasonal maintenance or a new or replacement system for your home or business call us for a free quote today.

Buffalo Grove is a village and suburb of Chicago with a population of 43,000. It's fantastic place to have your home or business and to raise your family and has a award winning school system, dozens of recreational facilities, parks, golf courses and seasonal festivals. Ultimate HVAC is your HVAC expert in Buffalo Grove, the next time you need emergency repair, a tune-up for your heating or cooling system, or a new installation give us a call.

System Shield Warranty

Need extra coverage? Get it with System Shield

This 10-year extended warranty provides 10 years of labor and a 12-year parts warranty for $350. Select this feature when registering the warranty online.

Boiler & Furnace Repair, Maintenance and Installation

Ultimate HVAC is your gas furnace installation and replacement expert in Buffalo Grove. If your home's furnace is getting older you should consider upgrading your system.

Gas furnaces being produced today are leagues ahead of those made a decade or longer ago in terms of effectiveness and efficiency ratings. At Ultimate HVAC we're proud to be an Armstrong Air and Ducane dealer here in northern Cook County. Both of these manufacturers have been industry leaders in the furnace space for decades and they have a full line of furnace units at varying capacities and efficiencies to meet every heating need. Winters in northern Illinois are long and harsh, keep warm all winter with a new furnace system and watch your energy bills go down.

Our team also can perform repair, maintenance and installation for residential and commercial boilers. For new installations our team features both Weil McLain and Navien gas and oil boilers. We stock traditional cast iron boiler systems for both water and steam distribution and more modern stainless steel condensing gas boilers. If you need emergency boiler repair or if your existing hydronic system needs a tune-up our team can help. Our technicians are trained to work on all system makes and models. We're proud to be a NATE certified and factory trained locally owned contractor. Call today for boiler maintenance, repair or new system installation.

Ultimate HVAC is your local A/C repair specialist.

We will thoroughly evaluate your heating system and prepare thorough job estimate.

Book Heating Service Now

Locally Owned

Ultimate HVAC is local owned and has decades of experience providing cooling solutions for metro Chicago homeowners and businesses.

Guarantee Peace of Mind

Ultimate HVAC is committed to your needs and satisfaction regarding HVAC or indoor air quality.

Book air conditioner repair and service with Ultimate HVAC today.

AC and IAQ Services in Buffalo Grove

Not enough home and business owners consider their IAQ (indoor air quality) when they think about what they can do to make their home cleaner, more comfortable and healthier. We spend the large majority of our time indoors, almost 90% on average, and generally the air we are breathing is un-clean if IAQ practices aren't in place. Ultimate HVAC is your IAQ expert in Buffalo Grove. We provide a number of indoor air quality systems for your home or business to help ensure a healthy indoor environment. We have a number of in-duct purifiers, air cleaners, Honeywell humidifiers and dehumidifiers, and environment control systems to maximize the quality delivered by your heating and cooling units.

We offer full AC services for residential and commercial applications here in Buffalo Grove. The next time you need AC repair, planned maintenance or a AC replacement call our team. Our technicians are factory trained, insured and certified to get your AC service done well and promptly. We feature Armstrong Air AC's for all new AC installations or replacement systems. Armstrong makes some of the most efficient and effective air conditioners in the industry. We have a full line of units varying by efficiency, output and price. If you're ready to talk to an expert about what Armstrong AC would be perfect for your Buffalo Grove home or business call Ultimate HVAC today and get a free quote for service.


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NATE certified: Nate Certified heating and cooling contractor.
EPA Certified: Ultimate HVAC is EPA refrigeration and air conditioning certified.
Accredited A+ Rated BBB Member: Ultimate HVAc has been an Accredited Better Business Bureau member since 2017, and we are more than proud of our A+ BBB rating!
Licensed and Insured: Ultimate HVAC is licensed and insured to do furnace, boiler, air conditioning, and water heating work throughout Cook County.

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