If you should have any questions or would like more information about Gartman Mechanical Services or a specific portion of this site, please do not hesitate to contact us and we will be happy to assist you further.

General Information & Questions:

Gartman Mechanical Services
520 South Park Avenue.
Oshkosh, WI 54902

Business Hours:
Monday - Friday 7:00AM - 4:30PM
Phone:(920) 231-5530
Fax:(920) 231-0486
email:This email address is being protected from spambots. You need JavaScript enabled to view it.

Residential and Commercial HVAC and Plumbing:
Tim Weitz
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Commerical/Industrial and Residential Engineering, Plumbing and Refrigeration: 
Scott Olejnik
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Commerical/Industrial and Residential Engineering and Plumbing: 
Paul Libardi
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Client Testimonials

  • Came home from holiday break to find a large pool of water in my basement. Called GMS and they had a service man there within 15 minutes and was able to replace my hot water heater within two hours. Outstanding service! I am a very happy customer.  

    Laura Andre

  • Thank you, Scott. Kitchen temp went from 64 degrees to 70..so nice to be warm after 40 years of freezing Barb                          

    Barb

  • Your gentlemen successfully identified some faulty parts causing our never ending heating struggles.   We really appreciate what they are doing for us. 

    Andy

  • Thanks for the prompt response to our problem.

    Terry & Carol

  • Penny, wanted to thank you and the staff at GMS for coming through for us this week!  As always, total professionalism and and going above and beyond for  your customers is what makes GMS stand out as a top notch company in our eyes.  We’ll recommend GMS every time when asked for suggestions for mechancial technicians. 

    Mary & Kathy

  • Very pleased with your company’s work.  It doesn’t matter if it’s cleaning our furnace, installing our A/C or taking care of our kitchen plumbing problems.  All you people do excellent work.  

    Lois & David

  • Best technician I’ve had.  Very thorough and answered all my questions.  Will be requesting Tom for all future HVAC jobs.

      Andrew

  • I have been a satisfied Gartman customer for over 40 years.  Your crew went above and beyond to expedite installation of my new furnace.

    Bridget

  • Thank you for your prompt service.

    Mary

 
920-231-5530
pwilz@gartmanmechanical.com
520 W. South Park Avenue