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Quick facts
- AreaMchenry
- StateIL
- Providers14
- Climate zone5A-Cool-Humid
- Heating degree days6,200
- Recommended systemdual fuel
Why HVAC matters in Mchenry
Mchenry sits in IECC climate zone 5A-Cool-Humid with average January temperatures of 24°F and July highs around 74°F. With 6,200 heating degree days, a reliable heating system is essential for comfort and safety.
IL (McHenry County) falls in IECC 5A-Cool-Humid. HDD 6200 / CDD 900 per NOAA 1991–2020 state averages drive a dual fuel HVAC strategy. Climate data is zone-level; consult a contractor for site-specific load calcs.
Dual-fuel system recommended for Mchenry
A dual-fuel system pairs a heat pump with a gas furnace backup — the heat pump runs efficiently on mild days while the furnace handles deep cold.
With 6,200 heating degree days and winter lows reaching 24°F, standard heat pumps lose efficiency. The dual-fuel approach gives you heat pump savings on 80% of winter days plus reliable gas heat when temperatures drop below 15-20°F.
About Mchenry HVAC
Mchenry's suburban profile means most HVAC work is replacement rather than new-build. 14 HVAC providers list active service in Mchenry — a small but workable shortlist. Getting three quotes is realistic if you plan a week out.
Mchenry's winter design temps (January averages near 24°F) sit at the edge of standard heat-pump efficiency, which is why dual-fuel setups — heat pump plus gas furnace backup — have become the contractor-preferred configuration here. ComEd (Commonwealth Edison)'s ComEd Energy Efficiency Heat Pump Rebate currently offers up to $1,800 toward a qualifying system, which meaningfully shifts the cost-of-ownership math.
Top local providers
Request quotes →- McHenry Heating & Air, Inc.Top rated
What customers say “We have a tankless water heater that needed flushing. Chris came out, determined what needed to be done and verified…”
- Jetts Heating and AirTop rated
What customers say “Does it get any better than this? A balmy 65 degrees in my garage and it's currently 20 degrees outside. Thanks to the…”
- Comfort Air Heating & Cooling IncTop rated
What customers say “We were referred to Comfort Air by our usual maintenance Company, who did not have anyone to send out to us…”
- Combined Services HVACTop rated
What customers say “I couldn't be more pleased with my experience with Combined Services. From the moment I called, their customer service…”
- CRS Heating & Air Conditioning, Inc.Top rated
What customers say “Mike Howell was very curious and professional, he show me all the areas of the leaks and he answered all my questions…”
- Loud BrothersTop ratedinstallationrepairinspection
What customers say “I've had my fair share of experiences with HVAC companies, and unfortunately, many seem more interested in taking…”
- American Comfort CentralTop rated
What customers say “American Comfort Central did an outstanding job installing my new A/C unit. From start to finish, the experience was…”
- Phoenix HVAC LLCTop rated
What customers say “The techs were both very professional. The company was able to work with me and my finances. The office let me know…”
What customers say “Koch Indoor Weather is fantastic! My furnace recently conked out during freezing weather and their technician Nate was…”
- installationrepairinspectionemergency
What customers say “We’ve used this company twice now to service our furnace and AC. Each time, the person coming to service equiptment is…”
- installationrepairinspection
What customers say “Due to water seepage my electric panel was destroyed. I called Jim on Friday and he was over on Saturday to diagnose…”
What customers say “We have used Ace for 10 years. Very friendly customer service. Jeremy is are technician that services our house. Very…”
What customers say “During the last cold snap our heater wasn't working and we called Rudd Heating and Cooling to come out. They responded…”
What customers say “Bill is a great guy and will treat you fairly. Always shows up on time and prepared to get your equipment up and…”
What Mchenry homeowners say
“We were referred to Comfort Air by our usual maintenance Company, who did not have anyone to send out to us immediately, for resolving an issue that came up late in the evening with our Air Conditioner. Garrett came out and had our problem fixed in u…”
“We’ve used this company twice now to service our furnace and AC. Each time, the person coming to service equiptment is professional, friendly and very knowledgeable. Jordan, who serviced our AC went above and beyond to find any other issues, without …”
“The techs were both very professional. The company was able to work with me and my finances. The office let me know when issues came up and where able to rectify any issues that came up. I would definately recomend Phoenix HVAC to any of my friends a…”
Local pricing snapshot
Repairs typically run $150–$600. Full system replacements range from $4k for a basic furnace to $12k+ for a premium heat pump. Dual-fuel systems (heat pump + gas backup) are recommended for this area's cold winters.
Available rebates in Mchenry
- ComEd (Commonwealth Edison): ComEd Energy Efficiency Heat Pump Rebate — $500–$1,800 for heat pump
- ComEd (Commonwealth Edison): ComEd Smart Thermostat Instant Rebate — $75–$100 for thermostat
- Nicor Gas: Nicor Gas High-Efficiency Furnace Rebate — $200–$500 for furnace
- Nicor Gas: Nicor Gas Smart Thermostat Rebate — $50–$75 for thermostat
Federal tax credits (up to $2,000 for heat pumps) can stack with utility rebates. See full cost breakdown →
Nearby service areas
Illinois hub →Explore more Illinois markets from the state hub.
Popular comparisons in Mchenry
- McHenry Heating & Air, Inc. vs Jetts Heating and Air4.9★ vs 4.9★
- McHenry Heating & Air, Inc. vs Comfort Air Heating & Cooling Inc4.9★ vs 4.7★
- Jetts Heating and Air vs Comfort Air Heating & Cooling Inc4.9★ vs 4.7★
- Jetts Heating and Air vs Combined Services HVAC4.9★ vs 4.8★
- Comfort Air Heating & Cooling Inc vs Combined Services HVAC4.7★ vs 4.8★
- Comfort Air Heating & Cooling Inc vs CRS Heating & Air Conditioning, Inc.4.7★ vs 4.6★
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Frequently Asked Questions
What's the best heating system for Mchenry?
Mchenry has cold winters (avg January: 24°F) with 6,200 heating degree days. A dual-fuel system (heat pump + gas furnace backup) is recommended — the heat pump handles mild days efficiently while the furnace takes over during deep cold snaps below 15-20°F.
How important is air conditioning in Mchenry?
Very. With 900 cooling degree days and summer highs regularly exceeding 74°F, AC is essential in Mchenry. Central AC or a heat pump (which provides both heating and cooling) is strongly recommended. Budget $3,500-$7,000 for a quality cooling system installation.
What HVAC rebates are available in Mchenry?
Mchenry homeowners can stack multiple incentives: ComEd (Commonwealth Edison) offers up to $1,800 for heat pump installations. Add the federal 25C tax credit ($2,000), and total savings can reach $3,800+. Ask your installer to itemize which rebates apply to your specific project.
How much does HVAC work cost in Mchenry?
In Mchenry, typical costs range from $150-$600 for repairs, $4,000-$8,000 for a standard furnace or AC replacement, and $6,000-$14,000 for a heat pump system. After available rebates, heat pump installations often net out to $4,000-$9,000. Get 2-3 written quotes to compare — prices vary significantly between contractors.
How do I verify a HVAC contractor is licensed in Illinois?
Illinois does not license HVAC contractors at the state level — the IDFPR only verifies general business registration. Trade licensing is handled municipally: Chicago requires a Mechanical Contractor license through the Department of Buildings, and most suburbs require local registration plus a plumbing/mechanical license for gas and ductwork. Always confirm an active local license, general liability insurance, and any bond required by the municipality.
Licensing verified weekly. Reviews refreshed within the last 30 days.
Licensing data: Illinois Department of Financial and Professional Regulation (state business registration) plus municipal HVAC licensing (e.g. City of Chicago Department of Buildings) · Company data: verified business records + Google Business profile
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