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Better Business Bureau (BBB) A+ Rating

National Comfort Institute, Inc. member

Located in Crystal Lake, Illinois, proudly serving all Chicagoland

Bella Temperature Service

Not all heating and air conditioning companies are created equal, especially in Illinois. Unfortunately, the State of Illinois does not mandate or regulate any technical skills or aptitude testing for HVAC technicians that enter your home. That is why Bella takes great honor in our Factory Certified Technician Training Program. All of our technicians must complete Factory Certification with a score of 90 or above, then enter into a rigid 2-year training program with our National Technical Trainers. Having been background checked and drug tested before they are ever allowed into your home. Our technicians are also mandated to complete ongoing annual certification training and random drug testing. We have the utmost confidence in our skilled, polite, knowledgeable and courteous technicians and you will too, we guarantee it!

We won’t let anyone into your home that we wouldn’t trust in our own homes.

Click here to view Bella’s Furnace & Air Conditioner Installation Difference

Click here to view Bella’s Furnace & Air Conditioner Tune-Up Difference

Click here to view Bella’s 100% Satisfaction Guarantee

What does it take to be a Bella Team Member?

DRUG FREE - We will conduct a pre-employment drug test and all team members are tested random every month.

CLEAR BACKGROUND - We will conduct an extensive nationwide criminal background check.

CLEAN CUT - We are looking for well groomed professionals. Business-like appearance and no facial hair. No visible tattoos.

CLEAN DRIVING RECORD - Our team members must show that they are considerate law abiding drivers.

TOBACCO FREE - Our team does not use tobacco in or around our vehicles, building, or clients home or our service is free.

EXCELLENT COMMUNICATOR - Communicationskills are of the utmost importance to a Bella Team Member. These skills are required by all.

WHATEVER IT TAKES ATTITUDE - Each team member must do whatever it takes to have each client say "I love those guys!


Our organization offers:

Fixed Right or it's Free - When we service your system, it is done right the first time or it's FREE.

True 24 Hour Service - Your call will be answered live by one of our friendly specialists, 24 hours a day 365 days a year.

Technician Seal of Safety - Your technician will be drug free, background checked, highly trained and will have undergone a rigorous selection process where only 1 out of 113 make the cut.

Straight Forward Pricing - You will always know "to the penny" what your investment will be - with no surprises.



Technician Seal of Safety
Energy Star logo
Natures Home
NATE Certified Technician logo
Air Conditioning Contractor's Association of America Member