Gartman Mechanical Services

Oshkosh, WI · Air conditioning contractor

Rating
4.5/5
★★★★★ 4.5
Reviews
20
Rank in Oshkosh
#38
of 173 home service pros
City Percentile
43%
rating percentile
Address
Gartman Mechanical Services, 520 W South Park Ave, Oshkosh, WI 54902
Phone
(920) 231-5530
Website
www.gartmanmechanical.com
Status
Closed · Opens 7 AM Mon

Gartman Mechanical Services is a home service pro located in Oshkosh, WI. It is one of 173 home service pros listed in Oshkosh. Its 4.5-star rating matches the Oshkosh city average of 4.5 stars. There are 9 photos associated with this location.

Hours

SaturdayClosed

Customer Reviews

★★★★★ 5.0 Eileen Stark · Feb 2026

My water heater went out they sent two professional hardworking men! Tom and Ethan were amazing and flawless with their execution and service! Very pleased with the service! Would recommend to anyone! God bless!

★☆☆☆☆ 1.0 Kaleigh Kacyon · Nov 2025

I contacted Gartman to inspect a noise coming from my AC unit. Their website states that they offer free estimates. After looking at the unit, they told me I needed a new compressor, claimed it was out of warranty, and recommended replacing the entire system—something that would have cost thousands of dollars. About a week later, I received an estimate for the repair, but no invoice or charge for coming out. I chose to get a second opinion and never responded to Gartman’s estimate. The second company contacted the manufacturer and was actually able to get the repair covered under warranty. Instead of paying thousands, I ended up paying only $800. Weeks later, I received a $170 bill from Gartman for a “diagnostic service.” What frustrates me is that they waited until after I declined their

★★★★★ 5.0 accounting department · Jan 2026

Have been exclusively working with Gartman for the past 10 years after a couple of other local heating and air conditioning companies let us down. Gartman has been awesome to work with. They are speedy and reasonably priced and we will continue to work with them in the future.

★☆☆☆☆ 1.0 Gale Martiny · Dec 2025

Paid over $6000 for a new radiant heat furnace and found out it had a ONE YEAR warranty. Ridiculous. Have had nothing but issues with it for the last 2 years. Always some new problem with it. Along with a leaking water issue every winter. Parts have been replaced. Just had a FAULTY pump replaced, this years issue, ( it cracked) and I was billed over $600. Would never recommend. Bad warranties, expensive and to many visits to resolve problems.

★☆☆☆☆ 1.0 Jennifer Clarke · Nov 2025

I unfortunately had a terrible experience with one of the employees who showed up at my client’s home today to address an issue with their heating system malfunctioning. I own a pet sitting business and since my client is out of town, I was the person who needed to explain the issue that was occurring. The employee, a short middle aged man, refused to listen to the issue, chastised me for doing what the client had asked me to do, then proceeded to completely dismiss me and walk away as I reiterated the issue that was going on. When I say dismiss, he completely ignored me, refused to look at the thermostats or heat registers that I was trying to tell him were involved in the issue, and walked into another room two different times as I was still trying to explain the issue. I realize I’m not

Services

Air conditioning contractor

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This listing is informational. Contact the business directly to verify credentials, services, and availability.