Jeff helped us out when our Air condition gave out and temps were high 80’s. My wife works from home and we have a 3 month old baby, we were in a real pickle. Jeff was super knowledgeable, quick and honest. Thank you Jeff for the help
village service page · McHenry County
Heating, Cooling & Plumbing in Union, IL
24/7 emergency HVAC, planned comfort work and residential plumbing from a family-owned company based in nearby McHenry.
Median structure year19572020–2024 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 278 housing units in Union, with 1939 or earlier as the largest build-era cohort at about 30.9%. Those figures help frame useful questions; they never replace an on-site assessment.
Popular ways we help
Complete home service in Union.
Start with the closest service. The office can route a symptom that crosses heating, cooling, plumbing or air quality.
01020304
Heating Service
Furnace, boiler and heat-pump repair, maintenance and replacement.
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.
A local planning lens
What the public data suggests—and what it cannot tell us.
- 01
Start with the 1957 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 Union’s housing rangeThe ACS estimate covers about 278 housing units, so individual homes can vary substantially from the community-level pattern.
- 03
Use McHenry County data carefullyThis is a smaller ACS estimate and carries more sampling uncertainty, so the figures are useful prompts—not a diagnosis or a parcel-level claim.
Local service questions
Planning service in Union.
The team operates from McHenry and serves communities throughout both counties.
Does McHenry Heating & Air serve all of Union?
Union is included in the published McHenry 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 Union?
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 Union?
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 Union
4.9from 637 Google reviews
Real feedback from local homeowners who called McHenry Heating & Air.
Our air conditioner went out and Chris was out right away and got us back up and running! Amazing service and very professional at explaining everything he was going to do and what was wrong. Will definitely be using McHenry Heating & Air, Inc again if needed!
Had an overall great experience with McHenry Heating & Air today. AC went out last night and my call was retuned first thing this morning. Jason, our technician, was working on our AC unit by noon same day. He was knowledgeable, identified the problem quickly and came up with a solution on the spot. Every detailed was explained. Greatly appreciate the authentic and honest approach!
01 / 20
Union service