What services does the company offer?

The company offers a wide range of HVAC services, including AC, heater, and commercial services. Their services include AC repair, AC tune-ups, AC installation, heat pump repair, heat pump maintenance, heat pump installation, mini-split repair, mini-split tune-ups, mini-split installation, furnace repair, furnace tune-ups, furnace installation, and more.

Does the company offer financing options?

Yes, the company offers financing options for their services. They have financing available, and customers can learn more and apply today.

Does the company provide water heater services?

Yes, the company offers water heater repair and installation services in addition to their HVAC offerings.

What makes the company's pricing unique?

The company offers flat rate pricing for their services, as well as their "Rock*Star Program" maintenance plans. They also provide specials and savings for customers.

Voyager DB

Deep data on millions of local businesses, with verified decision-makers to reveal.

Contact Research

Hand-built prospect lists from human researchers, delivered in 24 hours.

People Search

Find owners and decision-makers by job title, seniority and department.

Chrome Extension

Coldlytics in your browser - prospect any business as you browse the web.

Integrations

Instantly, Smartlead, lemlist, Clay, HighLevel, plus Claude and ChatGPT over MCP.

Voyager DBDeep data on millions of local businesses, with verified decision-makers to reveal.Contact ResearchHand-built prospect lists from human researchers, delivered in 24 hours.People SearchFind owners and decision-makers by job title, seniority and department.Chrome ExtensionColdlytics in your browser - prospect any business as you browse the web.IntegrationsInstantly, Smartlead, lemlist, Clay, HighLevel, plus Claude and ChatGPT over MCP.

PricingPricing AgenciesAgencies BlogBlog

LoginLogin

Harmonic Heating & Air Conditioning

$2.4M revenue • 12 employees • 101 N Virginia St, Crystal Lake, IL, 60014, United States

Last Updated Apr 1, 2026

Own this business? Claim & update this listing →

Company Overview

Company Name

Harmonic Heating & Air Conditioning

Address

101 N Virginia St, Crystal Lake, IL, 60014, United States

Website

officialhvac.com

Phone

(800) 350-4822

Approx. Annual Revenue

$2.4M

Employees

Established

2004

Google Reviews

4.9 (443 reviews)

Google Business Category

HVAC contractor

About Harmonic Heating & Air Conditioning

Harmonic Heating & Air Conditioning, located in Crystal Lake, IL, is a leading provider of HVAC services. They offer a wide range of solutions, including AC, heating, plumbing, and commercial services. The company emphasizes energy efficiency, maintenance plans, and flat rate pricing to ensure customer satisfaction.

Business Profile

Read from the Harmonic Heating & Air Conditioning website on Oct 25, 2026. Hover an item to see the exact wording it came from.

How Harmonic Heating & Air Conditioning works

Licenses, certifications & awards

Carrier Factory Authorized DealerManufacturer certified

About the website

Website quality (AI-assessed): 8/10 · Current copyright 2026; Complete service and contact info

Recent changes

What changed on the Harmonic Heating & Air Conditioning website and Google listing, as detected by Coldlytics on each visit.

Oct 25, 2026
Google Ads pixel removed
Google Tag Manager is present, so it may have moved into the container.

Coldlytics tracks changes like these across millions of businesses, so you can reach companies the moment they add a pixel, start hiring, or switch software.

Find companies by what just changed →

HVAC Companies near Crystal Lake, IL

Browse all HVAC companies in Illinois →

Frequently Asked Questions about Harmonic Heating & Air Conditioning

Technologies Used

Key Decision Makers

Sherice Vermillion Owner

Cheyl Kern Owner