Airwave Heating and Cooling
HVAC Repair & Installation in McHenry County, IL
Licensed local HVAC contractor — same-day furnace repair, AC service, mini-split installation, and 24/7 emergency response throughout McHenry County. EPA 608 certified. All major brands.
Carrier · Lennox · Trane · Goodman · Rheem
Lake in the Hills · Crystal Lake · Algonquin · Cary · Huntley · Carpentersville
No dispatch centers — owner answers every call
HVAC Services for McHenry County Homeowners
From a furnace that won’t start at midnight to a new high-efficiency system installation, we cover every heating and cooling need — with no subcontractors and no runaround.
Furnace Repair
Gas furnace repair for ignition issues, heat exchanger failures, blower problems, and no-heat emergencies. Same-day service in McHenry County.
Air Conditioning Repair
Refrigerant leaks, compressor diagnosis, capacitor replacement, and condenser coil cleaning. EPA 608 certified refrigerant handling. Same-day AC service available.
HVAC Installation
Replace your furnace or AC with confidence. Expert installation, proper sizing, and full system setup by licensed technicians. Free in-home estimates.
HVAC Maintenance
Spring AC tune-ups and fall furnace inspections keep your system running efficiently, protect manufacturer warranties, and prevent the most common mid-season failures.
Also Available
Additional HVAC Services
Smaller repairs and specialty services — handled by the same certified technicians.
Boiler Repair
Pressure issues, zone valve failures, circulator pump replacement, and no-heat diagnostics for residential hydronic boiler systems.
Ductless Mini-Split Installation & Repair
Single-zone and multi-zone ductless systems for garages, home additions, and older homes without existing ductwork — properly sized and licensed installation.
Thermostat Repair & Installation
Thermostat calibration, wiring diagnosis, and smart thermostat upgrades compatible with all major HVAC brands and system configurations.
Ductwork Repair & Sealing
Duct leak detection, section repair, and sealing to restore proper airflow balance and reduce energy loss from your heating and cooling system.
Refrigerant Recharge
EPA 608 certified leak detection, repair, and refrigerant recharge for R-22, R-410A, and R-454B systems — no recharge without finding and fixing the leak first.
Air Filter Replacement
Correct MERV rating selection, filter sizing, and replacement for all HVAC configurations — the most commonly skipped maintenance item and most common cause of reduced efficiency.
Humidifier Installation & Service
Whole-home bypass and power humidifier installation and annual service to maintain proper indoor humidity during Illinois winters — protects woodwork, hardwood floors, and respiratory comfort.
Water Heater Repair
Tank and tankless water heater diagnosis and same-day repair for gas, electric, and heat pump models throughout McHenry County.
Emergency 24/7 HVAC Repair
Direct line to a licensed technician, any hour of the day — no dispatch queue, no callback wait. Same-day response throughout McHenry County for heating and cooling emergencies.
Why Airwave
A Local Contractor Who Actually Picks Up the Phone
Airwave is owner-operated. When you call, you reach Igor Talmazan directly — an EPA 608 certified, Illinois-licensed HVAC technician based in Lake in the Hills. Not a dispatcher. Not a call center. The person who answers is the person who shows up.
Large regional HVAC franchises route calls through central dispatch, charge franchise overhead, and often can’t offer same-day service. We keep our operation lean so we can respond faster and price honestly — without upselling equipment that doesn’t need replacing.
McHenry County has its own climate realities: harsh winters that stress furnaces hard, cottonwood season that clogs condenser coils in June, and lake-effect humidity that puts extra load on AC systems near Crystal Lake. We understand these patterns because we live and work here.
Igor Talmazan
HVAC Technician & Owner · Lake in the Hills, IL
- EPA Section 608 Universal Certification — refrigerant handling, all system types
- Illinois HVAC Contractor License #PF1C707231CB6F1L0
- Fully insured for residential HVAC work in McHenry County
- Same-day service available — direct line, no dispatch delay
- Honest repair-vs.-replace guidance — no commission pressure
- Transparent, itemized pricing before any work begins
Brands serviced
Carrier · Lennox · Trane · Goodman · Rheem · York · Bryant · American Standard · Daikin · and others
McHenry County HVAC
What Illinois Winters & Summers Demand from Your System
HVAC systems in McHenry County face a wider seasonal range than most of Illinois — and local climate factors create failure patterns that repeat year after year.
Winter Heating
McHenry County regularly sees sustained temperatures below 0°F in January and February. Furnaces and heat pumps run at maximum load for weeks at a time, which is precisely when igniter failures, cracked heat exchangers, and blower motor issues become most likely. Annual fall inspections catch these problems before they become midnight emergencies.
Cottonwood Season
Each June, cottonwood seeds blanket outdoor condenser units across the area — Lake in the Hills, Crystal Lake, and Algonquin are particularly affected. A clogged condenser coil forces your AC to work harder, raises refrigerant pressure, and can trigger compressor overheating within a few weeks. A seasonal coil cleaning in late spring or early summer prevents most of these failures.
Lake-Effect Humidity
Properties near Crystal Lake and the Fox River chain experience measurably higher summer humidity than inland McHenry County. Higher humidity means your AC runs longer cycles to maintain comfort, which accelerates wear on capacitors and contactors. Keeping refrigerant charge accurate and coils clean is especially important for homes in these areas.
Fall & Spring Windows
The weeks before heating season (September–October) and before cooling season (April–May) are the best time for preventive maintenance — when technicians have availability and before demand surges. Scheduling a tune-up during these windows typically means faster appointments and lower service call pressure compared to mid-January or late July.
Service area
HVAC Service Throughout McHenry County, IL
We serve Lake in the Hills and surrounding communities — responding directly, not via a regional dispatch network.
Lake in the Hills
Our home base. Fastest response times. Familiar with local subdivisions near Sunset Lake and newer developments along Haligus Road. Full service including 24/7 emergency.
Crystal Lake
Serving all of Crystal Lake including lakeside neighborhoods. Higher humidity load near the lake means AC systems need extra attention — coil cleaning and refrigerant charge accuracy matter more here than in drier parts of the county.
Algonquin
The Randall Road corridor and Fox River neighborhoods. Algonquin’s rapid growth in the 2000s means a lot of systems are now reaching 15–20 years old and entering peak replacement territory.
Cary
Full HVAC service in Cary including the older downtown neighborhoods and newer subdivisions. Same-day and emergency service available.
Huntley
Serving Huntley’s established neighborhoods and the Del Webb Sun City community. Huntley sits drier and slightly cooler than lakeside communities — well-suited to heat pump operation in shoulder seasons.
Carpentersville
Full coverage in Carpentersville. We service all neighborhoods and housing types — older ranch homes, newer construction, and everything in between.
Serving all of McHenry County. The cities above represent our primary service area, but we also cover surrounding McHenry County communities. Call us at (773) 849-7379 to confirm coverage for your location.
Common questions
Frequently Asked Questions
How quickly can Airwave respond to an HVAC emergency in McHenry County?
For 24/7 emergency calls, we aim to respond the same day — often within a few hours — throughout our service area. Because there's no dispatch center, you reach the technician directly when you call, which eliminates the typical delay of waiting for a callback assignment.
For non-emergency service calls, we typically offer same-day or next-day appointments depending on current schedule. Scheduling during the fall or spring shoulder seasons usually means the fastest availability.
Do you service all HVAC brands and system types?
Yes. We service all major residential HVAC brands including Carrier, Lennox, Trane, Goodman, Rheem, York, Bryant, American Standard, and Daikin, among others. Brand is not a limitation — gas furnaces, heat pumps, central AC, ductless mini-splits, and boilers all fall within our scope.
Is Airwave licensed and insured for HVAC work in Illinois?
Yes. Airwave Heating and Cooling holds Illinois HVAC Contractor License #PF1C707231CB6F1L0 and EPA Section 608 Universal Certification, which is required for refrigerant handling on all system types. We are fully insured for residential HVAC work throughout McHenry County.
How do I know if my HVAC system needs repair or full replacement?
The most useful rule of thumb is the "5,000 rule": multiply the age of your system (in years) by the estimated repair cost. If the result exceeds $5,000, replacement is often the better investment. A 15-year-old furnace facing a $400 repair is usually worth fixing. The same furnace facing a $1,200 heat exchanger replacement is closer to the line.
We always provide our honest assessment — we don't earn commissions on equipment sales, so there's no financial incentive to push replacement when repair is the right answer.
Do you offer free estimates for new HVAC installation?
Yes. New system installations — furnaces, central AC, heat pumps, and ductless mini-splits — always include a free in-home estimate. Estimates include a Manual J load calculation to ensure the equipment is properly sized for your home, not just swapped to the nearest available model.
What clients say
McHenry County Homeowners Trust Airwave
Niels Dekker
02:15 25 Feb 26
Had an issue with my heater, Igor was able to come out same day, in the evening hours and fixed it and did maintenance. He was honest and did not upsell on anything at all. Good price too. Thanks Igor.
Stefan Odobesco
04:07 21 Feb 26
I had an emergency with my heater in the middle of a very cold day, and AirWave Heating and Cooling came to the rescue! Technician Igor responded quickly, arrived on time, and diagnosed the problem right away.
He was professional, knowledgeable, and explained everything clearly before starting the repair. The work was done efficiently, and my heat was back up and running the same day.
If you need fast, honest, and reliable HVAC service, I highly recommend AirWave Heating and Cooling and Technician Igor. Truly five-star service from start to finish!
He was professional, knowledgeable, and explained everything clearly before starting the repair. The work was done efficiently, and my heat was back up and running the same day.
If you need fast, honest, and reliable HVAC service, I highly recommend AirWave Heating and Cooling and Technician Igor. Truly five-star service from start to finish!
Tatiana Bicherschii
06:19 15 Feb 26
⭐⭐⭐⭐⭐
Airwave Heating and Cooling provided excellent service! They were very professional, responsive, and honest from start to finish. The technician arrived on time, explained everything clearly, and fixed the issue quickly. The pricing was fair, and the quality of work was outstanding. I truly appreciate their reliability and highly recommend them to anyone needing heating or cooling services!
Airwave Heating and Cooling provided excellent service! They were very professional, responsive, and honest from start to finish. The technician arrived on time, explained everything clearly, and fixed the issue quickly. The pricing was fair, and the quality of work was outstanding. I truly appreciate their reliability and highly recommend them to anyone needing heating or cooling services!
Max N.
21:26 30 Jan 26
Had some issues with my furnace, called Igor, problem was fixed quick and cheap. I do highly recommend them!
Thank you
Thank you
Oleg Smal
02:18 27 Jan 26
Great HVAC service! The technician diagnosed the electrical issue quickly, cleaned the condenser coil, and got the unit running again. Everything was explained clearly, work area left clean, and no upselling nonsense. That’s what I call a true professional. Highly recommend.
Оleg Кim
03:48 25 Jan 26
Technician Igor arrived on time, he fixed my heater very quickly, price was reasonable, and the quality of his work greatly impressed me. Plus, he provided helpful advice over the phone when we needed assistance. Thank you so much for your help!
Andrii Pavliuk
18:00 24 Nov 25
I thought my furnace died and I would have to order a new one, but this guy is professional. He fixed the furnace very quickly and saved me my money!
Vasyl Figel
17:42 15 Nov 25
I had a great experience with this HVAC technician. My AC stopped working, and he came out quickly, diagnosed the issue right away, and fixed everything on the same visit. Super professional, honest, and friendly. The price was fair, and the AC has been running perfectly since. Highly recommend if you need fast and reliable service!