Mjzern
Company Overview
MJZern delivers expert heating and cooling services.
We install, maintain, and fix residential and commercial air conditioning units.
Trust us for hydronic heating and water boiler solutions.
Our sheet metal ductwork meets SMACNA and ASHRAE standards.
Your plumbing and gas systems are in expert hands with MJZern.
Commercial and residential refrigeration repairs are our specialty.
Count on us for fast, reliable appliance service.
Custom stainless steel fixtures crafted and installed with care.
General repairs? We tackle them all.
From remodels to new builds, we deliver quality.
Need data or video cabling? We install and service it all.
Electrical repairs done safely and efficiently.
My 40+ years in HVAC and plumbing ensure you get the best service.
I hold a Mechanical Engineering degree from Texas A&M and full licensing.
I launched MJZern in 1999 to focus on hands-on craftsmanship.
Every job gets the same care as my own home.
Business Services
- Appliance repair
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal repair
- Gas line installation
- Gas line repair
- HVAC installation or replacement
- HVAC system repair
- HVAC system maintenance
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
| Mon: | 9:00 AM - 5:00 PM |
| Tue: | 9:00 AM - 5:00 PM |
| Wed: | 9:00 AM - 5:00 PM |
| Thu: | 9:00 AM - 5:00 PM |
| Fri: | 9:00 AM - 5:00 PM |
| Sat: | 9:00 AM - 3:00 PM |
| Sun: | 9:00 AM - 3:00 PM |
Recommended Customer Reviews
Michelle C.I reached out to several plumbing companies regarding a smell coming from the shower drain. Marc responded immediately, asked a couple questions and was able to diagnose and resolve the problem through messaging! All I needed to do was run some water. The other companies I reached out to said they needed to come out and inspect. Marc saved me a lot of money, time and hassle. I really appreciate his honesty and helpfulness. I will definitely be using Marc's services for future needs.
Kyle B.Had a great experience with Mark. He came out, fixed the issue, charged me less than I had thought, and everything works perfectly! He is super friendly and was easy to work with!
Micha H.Thought we had a problem with our water heater, expansion tank and PRV at street. Called out a plumber from ARS Rescue Rooter and was told everything was broken and needed to be replaced. Cost $2700. Called Mark Zern the next day (based on recommendations) ... Mark came out, said not one thing was broken, tweaked a few levers, relieved some trapped air in system and it works great. Mark is the most honest Plumber/AC etc. specialist I have ever known. If you want the job done right, go with Mark! Thank you again, Mark, for your above and beyond excellent service!
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