Our team at Campbell's TempraCure in Crystal Lake works hard to have the most comprehensive heating and cooling service around. One way we maintain our expertise and continue to expand our knowledge of HVAC products is by earning industry certifications. Discover more about the certifications our professionals have received below.

Lennox Premier Dealer

Campbell's TempraCure is proud to be recognized as a Lennox Premier Dealer. To uphold our status, we meet rigorous standards for technical expertise and customer service. Our team must participate in extensive factory training, install and service top quality Lennox products, employ NATE-certified technicians, maintain all required licenses, including insurance and liability coverage, and offer one year warranties on all Lennox system installations.

Better Business Bureau

Campbell's TempraCure is a member of the Better Business Bureau. That means we abide by ethical business behaviors and give trustworthy information to our customers. We have a solid rating and are proud to be part of this organization.


The Campbell's TempraCure team is entirely NATE-certified (North American Technician Excellence), ensuring your technician is experienced, knowledgeable, and certified to do the job right the first time. NATE-certification means our technicians maintain a high level, up-to-date knowledge of HVACR systems. NATE certification tests represent real world working knowledge of HVACR systems. Developed by a committee of industry experts nationwide, our NATE exams represent HVACR topics pertinent to contractors, educators, manufacturers and utilities alike. All of the NATE tests are rigorous, multiple-choice, knowledge-based tests and validate a technician’s knowledge.

Energy Star

Campbell's TempraCure is proud to offer Energy Star rated products.