I have been very happy with the furnace they installed 3 years ago. In June, I got a new AC unit. KC came out to inspect the old one and told me it would be best to replace rather than repair. As usual, everything was explained to me completely. Josh and Luis did the installation perfectly. Dot came by to do a final inspection. Everyone works as a great team, and I will continue to trust them to do a fantastic job.
city service page · Lake County
Heating, Cooling & Plumbing in Highwood, IL
24/7 emergency HVAC, planned comfort work and residential plumbing from a family-owned company based in nearby McHenry.
Median structure year19692020–2024 ACS estimate
Local housing context
Service that accounts for the home’s history.
Established housing makes compatibility-first diagnosis important when older distribution systems, plumbing runs and later equipment upgrades share the same structure.
The Census estimates roughly 2,076 housing units in Highwood, with 1939 or earlier as the largest build-era cohort at about 37%. Those figures help frame useful questions; they never replace an on-site assessment.
Popular ways we help
Complete home service in Highwood.
Start with the closest service. The office can route a symptom that crosses heating, cooling, plumbing or air quality.
01020304
Air Conditioning
AC repair, tune-ups and right-sized system installation.
Plumbing
Leaks, water heaters, fixtures, drains, sewer cameras and pumps.
Indoor Air Quality
Filtration, humidity and air-treatment options selected as a system.
Maintenance Plans
Planned care that builds a useful history for the home’s equipment.
A local planning lens
What the public data suggests—and what it cannot tell us.
- 01
Start with the 1969 medianAsk which parts of the distribution, electrical and plumbing systems are original and which were upgraded later. The median is context for the first questions, never a shortcut around an on-site assessment.
- 02
Account for Highwood’s housing rangeAcross roughly 2,076 estimated housing units, multiple build periods can create very different repair and replacement priorities from one address to the next.
- 03
Use Lake County data carefullyThe largest reported cohort is 1939 or earlier at about 37%; that still leaves most homes outside a single construction wave.
Local service questions
Planning service in Highwood.
The team operates from McHenry and serves communities throughout both counties.
Does McHenry Heating & Air serve all of Highwood?
Highwood is included in the published Lake County service-area build. Confirm the exact address and service type when scheduling, especially near municipal or county boundaries.
Is there a McHenry Heating & Air office in Highwood?
No additional office is claimed here. The verified business address is 1903 State Rte 31, McHenry, IL 60050, and the same local team serves the wider area.
What work can I request in Highwood?
Heating, cooling, indoor air quality, maintenance and verified residential plumbing services are available across the service area. Call to confirm a specialized project.
Verified Google reviews
Twenty local service experiences relevant to Highwood
4.9from 637 Google reviews
Real feedback from local homeowners who called McHenry Heating & Air.
Work was done professionally. The AC/ Furnace replacement installation was done while I was busy doing my own job which was very convienant. Other than the working unit you would never have known they were there. No scratched up walls from hauling the large units up and down stairs. Nothing went missing. No messes were left behind. And the follow up interview with Dot a few weeks after install was informative and pleasant. You get what you pay for: quality.
We had a great experience with this company. We called during a very hot week when our 22 year old ac unit no longer cooled the house properly. Service technician Jeremy arrived and diagnosed the problem and discussed with us our options. We decided that a new unit was the best plan. The next morning installation technicians arrived. Dot followed up with us assuring our expectations had been met. Customer service with this company is top shelf. We had a new unit cooling our house in less than two business days from our initial service call.
01 / 20
Highwood service