ASTERA has been providing expert HVAC, refrigeration, and appliance repair services in McHenry, IL, and nearby communities for years.
As a family-owned company, we bring decades of experience alongside a commitment to quality workmanship and reliable service.
Our certified technicians make sure every home or business enjoys consistent heating, cooling, and appliance performance, keeping your systems operating efficiently all year long.
With years of experience serving McHenry, IL, ASTERA delivers dependable HVAC, refrigeration, and appliance repair services for both residential and commercial properties. Our skilled technicians stay current with the latest industry technologies and standards, ensuring every repair, maintenance, or installation meets local building codes and manufacturer guidelines. From heating and cooling systems to commercial refrigeration units and home appliances, we handle every job with precision and care.
Comprehensive Consultation: We assess your HVAC, refrigeration, or appliance needs and provide expert recommendations for the most effective solutions.
Accurate Diagnosis and Planning: Each service begins with a detailed evaluation to ensure repairs or installations are correctly sized and optimized for efficiency.
Professional Service: Our licensed and insured technicians perform all repairs, installations, and maintenance with attention to detail and strict adherence to industry standards.
Testing and Verification: We rigorously test all systems and appliances to guarantee reliable performance and long-lasting results.
Discover why ASTERA is a trusted name in Chicago.
Call us today to schedule your Appliance Repair and enjoy a cool, comfortable home or office!
As an official dealer for top brands like High-Velocity System Unico, Bosch, Napoleon, American Standard, Goodman, and Daikin, we bring you the best in quality and performance





















At our service company, we proudly provide comprehensive HVAC, refrigeration, and appliance repair services throughout McHenry, IL. Our experienced technicians are equipped to serve every district and neighborhood in McHenry, ensuring prompt, professional repairs for all your heating, cooling, refrigeration, and appliance needs—whether for residential or commercial properties.
Here are the main districts and zip codes we serve in McHenry, IL:
McHenry (60050, 60051) – The core of the city, McHenry features a vibrant mix of residential neighborhoods and commercial centers. We offer expert HVAC, appliance, and refrigeration repair services throughout the area, ensuring reliable comfort and convenience for homes and businesses alike.
Downtown McHenry (60050) – The historic downtown district is home to many small businesses, restaurants, and older homes. Our team is skilled in handling both modern and legacy HVAC and appliance systems, providing specialized repair and maintenance services.
McCullom Lake (60050) – Nestled near the lake, this area includes a mix of cottages, permanent homes, and recreational properties. We provide fast and efficient heating, cooling, and appliance repairs to keep your lakeside living comfortable year-round.
Holiday Hills (60051) – This quiet, residential village located near the Fox River is part of our extended McHenry service area. We’re ready to deliver dependable HVAC and refrigeration repair solutions to homes in Holiday Hills.
Lakemoor (60051) – Straddling both McHenry and Lake counties, Lakemoor is a growing suburban area with many new developments. We offer reliable HVAC and appliance repair services tailored to both new construction and existing homes in the area.
Ringwood (60072) – Located just north of McHenry, this peaceful community features more rural properties and estates. We provide specialized HVAC and appliance repair for larger homes and systems in this area.
Johnsburg (60051) – Just northwest of McHenry, Johnsburg is known for its family-friendly neighborhoods and scenic surroundings. Our technicians are familiar with local housing styles and can service all types of heating, cooling, and household appliances.
Whether you live in downtown McHenry, near McCullom Lake, or in one of the surrounding villages, our dedicated team is here to provide high-quality, dependable HVAC, refrigeration, and appliance repairs. No matter the size or scope of the issue, we’re ready to keep your systems running smoothly and your home or business comfortable all year long.
Don’t let a malfunctioning system or appliance interrupt your daily routine. Contact ASTERA today to schedule expert HVAC, refrigeration, and appliance repair services in McHenry, IL. Our experienced technicians provide thorough assessments, professional repairs, and ongoing support to keep your systems and appliances operating safely and efficiently.
We offer competitive pricing, flexible service options, and a satisfaction guarantee on every job. Trust ASTERA for reliable, high-quality HVAC, refrigeration, and appliance repair services that ensure your home or business runs smoothly year-round.

EXCELLENT Based on 665 reviews Posted on Nell SchneiderTrustindex verifies that the original source of the review is Google. Excellent service--on time--reasonable pricing.Posted on Terrie SobeskiTrustindex verifies that the original source of the review is Google. George was professional and very nicePosted on Cheryl KennedyTrustindex verifies that the original source of the review is Google. Val was extremely professional and helpful. He was upfront with the total cost, came back same day with the needed parts, worked to find the best price for the parts saving me money, and made recommendations for future trade-in service on a humidifier. Will definitely use Astera services again and recommend them to other condo unit owners.Posted on Sam NelsonTrustindex verifies that the original source of the review is Google. Vlad was on time & great customer service.
Owner's reply
Thank you for your feedback! We’re glad to hear that Vlad was on time and provided great customer service. We appreciate your support!Posted on John NapolitanoTrustindex verifies that the original source of the review is Google. I contacted Astera because I was not getting any heat in my baseboard heating system on the first floor of my home. Upon emailing them I received a response within the same day as well as numerous options for a in-home appointment and service. So they sent Steven who is one of the technicians for HVAC. Upon talking with him as well as inspecting the boiler in my basement he immediately came up with a plan. Steven spent a lot of time making sure I understood about what happened and why I was not getting any heat. He discussed with me what needed to be done and he made sure I understood. He completed all of the required work and I was very happy with the money that I spent for my total repair. This is the third time I have used Astera for issues in my home as well as my sister's home. I have been so happy with the service that I receive from Astera and will definitely continue to use them down the road. Thanks Steven John N Westchester
Owner's reply
Thank you John, for your positive review! We're happy to hear that our company provided quick and efficient service.Posted on David M. LewinTrustindex verifies that the original source of the review is Google. Great service. The guy knew what he was doing. Timely. Got the job done right. Price was reasonable. I would definitely use them again.
Owner's reply
Thank you for your great review! We’re happy to hear that you had a positive experience and that our technician got the job done right. We appreciate your support and look forward to serving you again in the future!Posted on Mike FriedlanderTrustindex verifies that the original source of the review is Google. Super responsive, professional, knowledgeable. HIGHLY RECOMMENDED!
Owner's reply
Thank you for your kind words! We’re glad you had a great experience with our service. Your recommendation means a lot to us!Posted on Reed StevensTrustindex verifies that the original source of the review is Google. So far they are among the best service providers I have hired.
Owner's reply
Thank you for the wonderful feedback! We’re so glad to hear that you had a great experience with our service. We always strive to provide the best for our customers and your kind words mean a lot to us!Posted on Crystal NovakTrustindex verifies that the original source of the review is Google. Astera was able to come look at our appliance a few hours after my initial outreach. The technicians were friendly, trustworthy, and repaired our SubZero with no problem. I recommend them without reservation!
Owner's reply
Thank you so much for your kind words! We’re thrilled yo hear that our technicians were able to help and that you Subzero is working perfectly again. We truly appreciate your recommendation and look forward to assisting you again in the future!