If you want fast, friendly and reliable service, we're ready, willing and eager to provide it. You can experience that service when you partner with Molo Petroleum or Molo Plumbing & Heating. Or enjoy it every time you visit one of our Big 10 Mart stores. Whatever you need, Molo is ready to deliver. We are not a huge multi-national company. We are a family business whose goal is to take care of other families. Starting in Dubuque, Iowa, we have grown steadily over the years into the six states where we operate today.

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24 Hour Emergency Service

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Sometimes, the unpredictable happens. When it does, it's great to know that we're there for you with emergency service 24 hours a day, seven days a week. We're always just a phone call away. Molo Maintenance Plan customers can get that emergency, after-hours service at reduced rates.

Molo Petroleum

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Molo Petroleum and Lubricants divisions are one of the premiere providers in the upper Midwest. We pride ourselves on a unique business model where the customer is first. Every year, we sell millions gallons of gasoline, diesel fuels and lubricants to more than 2,000 customers. These customers come from a wide variety of industries, including convenience stores, retail, industrial, construction, agricultural, rail, marine and government.

Plumbing, Heating & Air Conditioning

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From plumbing and water conditioning to heating and cooling, we're ready to serve your unique needs with the same level of professionalism all of our Tri-State commercial and residential customers enjoy. That's what it means to be committed to your comfort and peace of mind. That's what you get when you turn to Molo for plumbing, water conditioning, heating adn cooling.

Careerswith Molo

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Molo Companies has been family-owned since 1870. It's who we are. More importantly, it's how we treat everyone who works with us. Whether it's at our home office in Dubuque, Iowa or at more than 25 other locations, we believe in treating everyone as a valued member of the family. This could explain why so many employees stay with us for decades.

Elizabeth Gilles

Oct 31, 2019

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Always have had great experiences and we've been with this company for years!

Mason Brenke

Apr 27, 2019

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Molo Plumbing Came out on Saturday around 4 ish stayed an hour to do some plumbing during this time his cell phone was going off he said it was his wife and he didn't tell her that he had another job to do. so with him feeling rushed i do not believe in his heart he wanted to stay and do the work needed instead he said well we are an hour into this and if you want i can continue or we can schedule you on Monday or Tuesday. well considering the only work done was he had cut a pipe i thought lets get this guy out of here he does not want to work and i do not want him here no longer increasing the bill.

So i was charged 150.00 for this guy to cut out a pipe and tell me what he would do to fix the pipe. so the next day i went out and purchased the supplies he said i needed and attempted to do it myself. well it leaked. So I called Top Notch Out of Galena, Illinois on Monday and they sent out a plumber at 8 am on Tuesday. he looked at what i did and said well if that did work it wouldnt last as long as if you were to do it like this. So he got the job done and so far no leaks. Thanks Again Top notch

Timothy Grass

Mar 11, 2018

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Actually went there once to set something up for a project and never heard a anything back even after we set up something.

Laura Grones

Jan 13, 2018

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Terrible business practices! They charged me $80.00 for an estimate on a water heater! I called 2 other companies and they did not charge me anything to do the same. I tried to reason with the office manager Melissa -who was extremely rude and she just wouldn't listen at all and kept repeating the $80 stands-and that she would put the $80.00 towards purchase of a new water heater from them-- They were also the highest estimate out of all 3 companies I called! Stay away from this company! $80 for an estimate =robbery!

Matt W.

Dec 20, 2017

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Molo is a top notch company! Jesse and his crew are the best in the business! From start to finish everyone involved has been very professional. They have done everything as promised and on time. I would highly recommend Molo & Jesse for your heating and cooling needs.

Aaron Morrow

Nov 19, 2017

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We've used them a lot over the last few years, everything from water heaters to furnace & AC stuff. Great technicians & competent office manager. We'll definitely continue to use them.