Business Details
Emergency
services
Your Trusted HVAC and Plumbing Partner in Oshkosh, WI
Gartman Mechanical Services has built a reputation as a trusted mechanical contractor serving residential, commercial, and industrial clients. With decades of combined experience, our team of licensed engineers, certified plumbers, and skilled technicians delivers comprehensive HVAC, refrigeration, plumbing, and engineering solutions. Our union-certified staff undergoes rigorous training, including a five-year apprenticeship with over 12,000 hours of combined classroom and fieldwork. We specialize in system installations, emergency repairs, and preventive maintenance for both new and existing systems. Our 24/7 emergency service ensures immediate support for critical mechanical failures.Backed by over 40 years of industry leadership, we combine technical expertise with personalized service to address unique client needs. Our engineers excel in energy efficiency analysis, equipment selection, and system optimization for complex commercial projects. Residential clients benefit from prompt, reliable service for heating, cooling, and plumbing systems. We maintain full transparency in operations, offering free estimates and adhering to strict quality control standards. Our commitment to excellence has earned us long-term partnerships with satisfied clients across Oshkosh and surrounding areas.
Services
HVAC Installation
Plumbing Services
Refrigeration Systems
Engineering Solutions
Emergency Repairs
Boiler Maintenance
Air Filtration
Sheet Metal Fabrication
System Upgrades
Preventive Maintenance
Highlights and features
- We offer 40+ years of combined experience in mechanical contracting and engineering.
- Our union-certified technicians complete 5-year apprenticeships with 12,000+ training hours.
- We provide 24/7 emergency service for urgent heating, cooling, and plumbing issues.
- Our engineers specialize in energy efficiency analysis and system optimization.
- We service all makes and models of mechanical systems for residential and commercial clients.
What people say
Excellent Service
Employee of the Month
Prompt service
Professional technicians
Reliable solutions
Services
HVAC Installation
We install residential and commercial HVAC systems including furnaces, air conditioners, heat pumps, and ventilation units. Our technicians ensure proper sizing and energy-efficient operation for optimal comfort. Systems are installed to manufacturer specifications with full compliance to local codes.
Plumbing Services
Our licensed plumbers handle residential and commercial plumbing installations, repairs, and maintenance. Services include water heater replacement, drain cleaning, gas line work, and fixture installations. We service all system types with 24/7 emergency support available.
Engineering Solutions
Professional engineering services cover HVAC system design, energy efficiency analysis, and code compliance for new construction or renovations. Our engineers optimize system performance while meeting budget requirements for commercial and industrial clients.
Emergency Repairs
24-hour emergency response for heating, cooling, and plumbing failures. Our technicians prioritize rapid diagnosis and repair to minimize downtime for residential and commercial clients. Available year-round with no additional after-hours fees.
Boiler Maintenance
Preventive maintenance and repairs for commercial boiler systems, including pressure testing, burner tuning, and efficiency optimization. Our certified technicians service high-pressure boilers and steam systems to ensure safe, reliable operation.
People
Tim Weitz
HVAC Specialist
Experienced HVAC technician specializing in residential and commercial system installations and repairs. Provides expert guidance for heating and cooling solutions.
Scott Olejnik
Refrigeration Expert
Refrigeration specialist with expertise in commercial refrigeration systems, including walk-in coolers and ice storage units. Ensures optimal temperature control for food service businesses.
Paul Libardi
Plumbing Engineer
Licensed plumbing engineer managing complex commercial plumbing projects. Focuses on code compliance and efficient water distribution system design.
Questions
What services does Gartman Mechanical offer?
We provide HVAC installation/maintenance, plumbing services, refrigeration systems, engineering solutions, and 24/7 emergency repairs for residential and commercial clients.
Do you service both residential and commercial properties?
Yes, we handle projects for homeowners, apartment complexes, industrial facilities, and commercial buildings across Oshkosh.
Are your technicians licensed and insured?
All our technicians are certified professionals with required licenses for plumbing, HVAC, and refrigeration work in Wisconsin.
What areas do you serve?
We primarily serve Oshkosh, WI and surrounding communities for both emergency and scheduled service appointments.
How quickly can you respond to emergencies?
Our 24/7 emergency team responds promptly to critical heating, cooling, or plumbing failures at 920-231-5530.
Do you offer preventive maintenance plans?
Yes, we provide customized maintenance agreements to ensure optimal system performance and extend equipment lifespan.
Reviews (7)
M. Eh
Mar 26, 2021
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Good service, excellent workmanship, the install guys did a good job. Followed through with everything listed in the contract.
Rick Roeder
Feb 01, 2021
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GMS went out of there way to make sure my new furnace was installed properly. Penny is very helpful and a big thanks to Jake. It's nice to see honest contractors still exist.
Shaheda Govani
Feb 25, 2020
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Excellent service, and very good communication. The team continues to impress me from the office reception to the service guys. Refreshing to get decent customer service! Big thanks!
Jenn Jensen
Feb 11, 2020
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My furnace blower motor went out and they were able to repair it within 2 hours. I had someone on site within 20 minutes of my call. Very professional. Will hire them again.
Barry Puhl
Oct 25, 2019
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We have used GMS for service over the years and have been very happy with their service. They just finished installing a new A/C unit and we could not be more pleased. The workmanship from Chad and Brian is awesome. They came in did the work in a very professional manner and the finished project quickly. Wish I had before pictures. Great job guys, much appreciated.
J. M.
Apr 27, 2019
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Lowest price I found around ripon and searched 50miles + friendly, hardworking, honest, and provide Trane products top rated hvac systems. Owner came out personally to give the quote. So glad I went with GMS
Patrick Kuhl
Mar 14, 2019
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My furnace went out a couple weeks ago, just before a serious cold snap, and they came out on a Monday and by Wednesday afternoon I had a new furnace up and running. They would have been there on Tuesday, but they already had another emergency furnace replacement booked.
