Brand Certified
Hartwig Mechanical
3.6(42 reviews)
Certified by Hartwig Mechanical • May 17, 2026
Business Details
20800 East Brink Street, Harvard, IL
60033, United States
Certified by Hartwig Mechanical • May 17, 2026
(815) 943-4430
Certified by Hartwig Mechanical • May 17, 2026
https://hartwigmechanical.com/
Certified by Hartwig Mechanical • May 17, 2026
About
Certified by Hartwig Mechanical • May 17, 2026
Construction CompanyPlumberHVAC ContractorBackflow PreventionEmergency PlumbersHeating ContractorCommercial Building ContractorAir Conditioning ContractorConstruction Estimates
Hartwig Mechanical, Inc. is consistently recognized as one of the top commercial plumbing, engineering, mechanical, facility maintenance, and HVAC contractors in Illinois and Wisconsin
Location
Certified by Hartwig Mechanical • May 17, 2026
Hours
Certified by Hartwig Mechanical • May 17, 2026
Monday7:00 AM - 4:00 PM
Tuesday7:00 AM - 4:00 PM
Wednesday7:00 AM - 4:00 PM
Thursday7:00 AM - 4:00 PM
Friday7:00 AM - 2:30 PM
SaturdayClosed
SundayClosed
Reviews
3.6
42 reviews
5 stars
24
4 stars
4
3 stars
1
2 stars
1
1 star
12
- TSThor SchillerMay 4, 20265.0The team at Hartwig has consistently been one of the strongest subcontractors we have had the pleasure of working with year after year. Their team’s attention to detail and ability to deliver on their commitments is outstanding.
- BBbobFLIPPMay 1, 20265.0Just had Hartwig come out and repair our furnace. Needed a board and it was too late to get one yesterday. Both techs, Cesar and Pat were very knowledgeable. We’ve used Hartwig’s services for years. This is a good HVAC company to do business with.
- VVVikki VegetabileMar 26, 20265.0Hartwig Mechanical has proven to be an excellent partner and a valued extension of our property management team. Their responsiveness consistently stands out—service requests, questions, and follow-ups are addressed promptly, helping us keep operations running smoothly and minimize disruptions for our office. The Hartwig team is professional, communicative, and proactive, making coordination easy from initial outreach through project completion. They demonstrate a clear understanding of our properties and priorities, and they take a collaborative approach to problem-solving rather than a transactional one.
- BJBrittny JablonskiDec 30, 20251.0One of your drivers just straight up ran a red light in downtown west Dundee just now. And then when I passed him I saw he was on his phone. Please tell your drivers to be safe, as some of us have precious cargo (kids) in our vehicles.
- JRjosh roweDec 3, 20251.0Hopefully you do better work than your team drives. Plate number 3750157 thinks he’s in a race van. Not a very good impression for a business. After going through the other reviews I just had to edit. Do you actually verify drivers licenses??
Frequently Asked Questions About Hartwig Mechanical
Does Hartwig Mechanical provide emergency 24/7 service?
Hartwig Mechanical always has a plumber and HVAC technician available 24/7 for emergency service needs. Call us at 815-943-4430.
Does Hartwig Mechanical offer emergency services?
Yes, Hartwig Mechanical provides 24/7 emergency plumbing and HVAC services. You can reach them at 815-943-4430 for emergencies.
What are the regular business hours for Hartwig Mechanical?
Hartwig Mechanical is open Monday through Thursday from 7:00 AM to 4:00 PM and on Friday from 7:00 AM to 2:30 PM. The business is closed on Saturday and Sunday.
Where is Hartwig Mechanical located?
Hartwig Mechanical is located at 20800 East Brink Street, Harvard, Illinois, 60033, USA.
In which counties does Hartwig Mechanical provide services?
Hartwig Mechanical serves multiple counties including McHenry, Lake, Boone, Winnebago, Stephenson, Carroll, Ogle, DeKalb, Kane, Cook, DuPage, Will, Kendall, LaSalle, Bureau, Lee, Whiteside, Walworth, Racine, and Kenosha Counties.
What types of services does Hartwig Mechanical specialize in?
Hartwig Mechanical specializes in commercial plumbing, engineering, mechanical, facility maintenance, HVAC contracting, backflow prevention, heating and air conditioning contracting, and construction estimates.
How can I contact Hartwig Mechanical?
You can contact Hartwig Mechanical by phone at +1 815-943-4430 or +1 855-427-8944, or by email at greg.harle@hartwigmechanical.com. Their website contact page is https://hartwigmechanical.com/contact-us/.
Is Hartwig Mechanical active on social media?
Yes, Hartwig Mechanical is active on LinkedIn, Facebook at https://www.facebook.com/166285393397873, and Instagram under the handle hartwigmechanical.
What automotive services are available near Hartwig Mechanical?
Nearby automotive service providers include Harvard Automotive, Carl's Windshield Replacement, Gator Auto Parts LLC, Advance Auto Parts, and Checkmate MX for motorcycle repair. Customers near Hartwig Mechanical can easily access these services for their vehicle needs.
Are there dining options close to Hartwig Mechanical?
Yes, nearby dining options include Burger King, Little Caesars, Delicias Tapatias, and Harvard Donut, which customers can visit before or after appointments with Hartwig Mechanical.
What self-storage facilities are near Hartwig Mechanical?
Close to Hartwig Mechanical, customers can find self-storage options at Lock N Roll Storage Solutions and Maya Storage Units LLC, useful for those needing storage solutions while visiting the area.
Brand Certified Facts from Hartwig Mechanical
This information is certified by Hartwig Mechanical and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified May 17, 2026Yext Knowledge Graph
- Address
- Categories
- Geo coordinates
- Legal business name
- Hours of operation
- Phone number
- Official website