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  1. Home
  2. Mchenry, IL
  3. 123 Mechanical

123 Mechanical

123 Mechanical is a HVAC provider serving Mchenry, IL. Rated 5.0★ with 5 Google reviews. See services, review signals, and request a quote.

5.0★ (5 reviews)HVACMchenry, IL
On this page▾
  1. 1.Company overview
  2. 2.Services offered
  3. 3.Photos
  4. 4.What customers say
  5. 5.Key highlights
  6. 6.Explore nearby research
  7. 7.Frequently asked questions

Company overview

  • TradeHVAC
  • Service areaMchenry, IL
  • Google rating5.0★ (5 reviews)
  • Phone(815) 800-3279
  • Address5706 Landcaster Cir, McHenry, IL 60050, USA

Services offered

  • installation
  • repair
  • inspection

Photos

  • 123 Mechanical photo 1
  • 123 Mechanical photo 2
  • 123 Mechanical photo 3
  • 123 Mechanical photo 4
  • 123 Mechanical photo 5

Photos from 123 Mechanical

What customers say

★★★★★

“I'm a local insurance broker. I refer my clients to Jim at 123 Mechanical. He is always timely, honest, and seems like a genuine person, always looking out for the best interest of the customer. I hig…”

— Joanna Syzmanski, 2 years ago
★★★★★

“Due to water seepage my electric panel was destroyed. I called Jim on Friday and he was over on Saturday to diagnose the problems. He noted that a new pane was needed and that it would take about a we…”

— julian fernandez, 2 years ago
★★★★★

“Jim and the team at 123 mechanical are top notch. They helped me with electrical work for a basement remodel, which was fairly extensive and included installation of 220v for an electric stove. They …”

— Dave Hathway, 2 years ago
★★★★★

“Top quality service & Honest! They came out diagnosed my furnace issue in short time. Luckily it was only a fuse which was a cheap fix. Nice to see there are still honest people out there. I was expec…”

— J Mac, 2 years ago
★★★★★

“Great service that was professional and affordable. I highly recommend them to anyone who may need to replace their HVAC system.”

— Clare Srajer, 2 years ago

Key highlights

Strengths

  • Highly rated (5.0★ average)

Things to ask

  • Confirm availability for your area and timeline
  • Ask about warranty terms on parts and labor
  • Request a written estimate before work begins
  • Ask about payment plans or financing

Explore nearby research

  • Mchenry, IL HVAC pros
  • Best HVAC in Mchenry
  • HVAC cost in Mchenry
  • Best HVAC in Chicago, IL
  • Best HVAC in Aurora, IL
  • Best HVAC in Rockford, IL
  • Best HVAC in Joliet, IL

Frequently Asked Questions

  • What services does 123 Mechanical offer?

    123 Mechanical provides: installation, repair, inspection. They serve residential and commercial customers in Mchenry, IL.

  • What is 123 Mechanical's rating?

    123 Mechanical has a 5.0 out of 5 star rating based on 5 Google reviews.

  • Is this company licensed in Illinois?

    All listed providers have a verified Illinois contractor license at time of publication. You can verify on the Illinois Department of Financial and Professional Regulation (state business registration) plus municipal HVAC licensing (e.g. City of Chicago Department of Buildings) lookup at https://online-dfpr.micropact.com/Lookup/LicenseLookup.aspx.

  • Does 123 Mechanical offer emergency service?

    Contact them directly to ask about emergency availability and after-hours service.

  • How do I request a quote?

    Use the CTA below to submit your ZIP. You can message this company alongside two or three other local pros for easy comparison.

✓ Licensing verified 2026-04-22. Reviews refreshed 2026-04-22.

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

See our editorial standards · Report inaccurate info about 123 Mechanical

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