Recently had routine maintenance for my AC and furnace, no charge, no upselling, love Intelligent.
Steve Domsky
E"Great Service!"
I am a customer for 5 years! Wonderful staff!
Evette Thurman
B"Confident in the Quality"
Knowledgeable, easy to work with and schedule, considerate, and great cleanup.
Bob Sippel
S"Super pleased with how professional they are"
I am super pleased with how professional they are.
Sharon Vargas
J"Our technician went above and beyond"
Our technician went above and beyond, even returning to the shop to get a replacement part for us.
John Bono
L"Polite and Professional Workers"
They are very experienced and will do an excellent job for you.
Lee Loney
Been a happy customer for many years
Been a happy customer for many years. Recently had routine maintenance for my AC and furnace, no charge, no upselling, love Intelligent. Also recently had James out for a minor plumbing issue and problem resolved and very, very reasonable. Big thank you to Jason and the team at Intelligent!!
Steve Domsky
Great Service!
I am a customer for 5 years! Great service! I always feel it is honest! Wonderful staff!
Evette Thurman
Confident in the Quality
I was/am confident in the quality of the product and work. Knowledgeable, easy to work with and schedule, considerate, and great cleanup, always have been.
Bob Sippel
Super pleased with how professional they are
First time using the company, and I am super pleased with how professional they are. I will definitely be reaching out again for future service!!
Sharon Vargas
Our technician went above and beyond
Our technician went above and beyond, even returning to the shop to get a replacement part for us. Also, he was very willing to describe anything he was doing.
John Bono
Polite and Professional Workers
This company has polite and professional workers. They are very experienced. They will do an excellent job for you.
Serving Cook County and beyond
HVAC Repair Company Mount Prospect
Nothing disrupts your life quite like an HVAC breakdown. That's where Intelligent Service comes in, offering prompt and professional HVAC repair services to get your system running smoothly again—so you can get back to your day.
Intelligent Service’s friendly and professional team tackles each HVAC repair with care, using the latest tools and techniques to ensure lasting solutions. We can repair all types of heating, cooling, and ventilation systems and are often able to troubleshoot and fix the problem on the spot. From handling minor issues to complete breakdowns, Intelligent Service is there to get the job done right!
Facing HVAC troubles? Reach out to Intelligent Service at (847) 393-0853 for expert HVAC repair services that keep you comfortable.
At Intelligent Service, we’ve been keeping Northwest Chicago homes safe, comfortable, and efficient since 1979. From plumbing emergencies to heating and cooling upgrades, we combine modern technology with old-fashioned, neighborly care. Our licensed team focuses on honest guidance, transparent pricing, and solutions that truly fit your home and budget.
Why Choose Us:
Trusted local experts since 1979
Licensed, highly trained technicians
Transparent, upfront pricing with no surprises
24/7 emergency plumbing and HVAC service
Genius Club membership with perks and guarantees
Flexible financing for larger repairs and replacements
Round-the-clock HVAC repairs to keep your home safe and comfortable.
Trusted HVAC Care Since 1979
Decades of expert heating and cooling for Northwest Chicago homes.
Genius Club Comfort Protection
Priority HVAC service, discounts, tune-ups, and a forever guarantee.
Honest, Upfront HVAC Pricing
Clear estimates, no hidden fees, and options that fit your budget.
Intelligent Service Offers
FREE
Second Opinion on HVAC Repair or Replacement
Offer covers arrival of technician and diagnostic of HVAC system. Additional diagnostics and costs may apply if extensive investigation is necessary. Must be in the immediate service area.
Cannot be combined with any other offers or discounts. Coupons must be presented at time of payment. Not valid for trip charge or diagnostic fee. Valid on standard pricing only. Redeemable for on-time use per home.
Valid
Jun 1, 2026
- Jul 31, 2026
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FREE Second Opinion on HVAC Repair or Replacement