Get matched with top nest installation pros in Park Forest, IL

"Efficient and knowledgeable. Great company. Light switches replaced and exterior light installed. Would definitely recommend."

"The service guy came out very quickly. Had a smart thermostat installed. He walked me through setting up the app. Did a fast and a great job. I highly recommend this company if you want it done and done right."

"We had a full AC unit and furnace installed by Frostcore and the experience was outstanding from start to finish. The team was professional, punctual, knowledgeable, and took the time to explain everything clearly. The installation was clean, organized, and completed with great attention to detail. Our new system is running perfectly, keeping the house comfortable and efficient. You can tell they truly care about quality workmanship and customer satisfaction. I highly recommend Frostcore to anyone looking for honest, reliable, and professional HVAC service. Thank you again for the excellent work!"

We are dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.\n

R-N-J Construction, has a single mission, which is to achieve complete customer satisfaction! We strongly believe in giving our customers the most for their money. We work with only the highest quality materials and experienced professionals. With over 20 years of experience, we have consistently focused on the needs of our customers, providing personalized attention and a stress free experience. This approach has set us apart from our competition and keep our customers coming back! Give us a call today!

I take pride in delivering high quality services and solutions

Hello. My name is Kevin and I’m looking to take on a bit more workload. My work stands for itself in regards to care/quality/commitment. Thank you.

"Fast install. Completed in one day. Included a free post install duct cleaning."

My name is Carloa I have work 6 years as a hvac technician and installer. I work remodeling for 4 year. I’m honest and straight forward with my work

Electrical professional with 20 years of hands-on experience in residential, commercial, and heavy industrial electrical construction. Raised in a family-owned electrical company that grew from a 10-person shop to a 500-electrician operation serving projects nationwide and internationally.\n\nExtensive field experience across high-demand environments including power plants, steel mills, paper mills, chemical plants, oil refineries, coal mines, Air Products facilities, and large food manufacturing plants.\n\nHighly skilled in:\n • Low-voltage systems, fire alarm, controls, and automation\n • Medium-voltage installations and power distribution\n • Underground services and excavation coordination\n • Bucket truck and service work\n • Smart home and modern electrical systems\n • Residential, commercial, and industrial construction from ground-up to retrofit\n\nCertifications & Credentials:\n • Chicago Licensed Electrician\n • OSHA 10 & OSHA 30\n • MSHA Certified\n • CPR Certified\n • NCCER Certified\n\n