beware!!!!!! work never completed. left numerous messages & never got a return call. had to hire…read moreanother company & pay for another permit. they're still sending a bill for work they didn't do.

I've been in their showroom a few times. It is very impressive for a small town like Shelby. I…read morehaven't used them yet, but they seem to know whats they're doing. I wouldn't hesitate to use them.

Our furnace died on a Friday night and we had a technician out in less than an hour! Thorough and…read morefriendly and knowledgeable, things were up and running quickly. Highly recommend!

The technician's name was Corey…read more The technician who came to my home told me I had a diagnosis of a cracked heat exchanger.. He freely acknowledged he did not open up to do an actual visual inspection on the unit. He said it was because the flames were Orange. Another contractor came and told me the Orange was caused by dirty burners in crossover tubes. He told me my furnace was a safety hazard and had to turn it off and I must buy a new heating system.. You wouldn't offer me a replacement part option even though the parts are under the factory warranty I do. He told me that he'd exchange her how to factory recall and I asked for a manufacturer's bulletin. The bulletin he provided stated The furnace needs an additional grounding wire for a lot of models in my model was not one of them.. Dishonest, Deceptive, And clearly is not trained in basic service and maintenance on heating equipment. He clearly only cared about selling me new equipment equipment and not resolving my basic me this thing my basic maintenance problem.

We recently had gutter guards put on our house. From the initial call with Grace, then meeting with…read moreAaron to view the product, discuss pricing, and schedule installation, and last but not least seeing the job get done by their professional installers, Chris and Joe, we couldn't be more pleased. Working with this company was seamless and top notch! Loretta and Pierre

One way installed my gutters a year ago and I had them back today to install gutter guards and to…read morerepair a downspout that was damaged by an ice dam This past winter. Branden was out first to do an inspection and a consultation and quote. Very professional, very knowledgeable without the high pressure. I signed the quote and he went over it twice for me. The install was completed today by Collin and Chris. Again, efficient, friendly and completed the job in a timely manner And had me inspect it before leaving. Collin left his card and said to call him if I have any question or problem. Larry Plaisier

Absolutely amazing local company! We do not have irrigation on our blueberry farm in Shelby and…read morethey have been working hard all week and weekend to hydrate our blueberries! Amazing group of people. Thank you, Hallack, for giving Jazz Blueberry Farm the help so we can have a great season!

Well, they did a job for me on one of my cottages a few years back and I had framed out the…read moredriveway and they did a very nice job of putting the crushed stone down. I have another project for another property and they have give a very competitive quote. Because of their quality of work and the time of the year there is a lot demand for their services. The only complaint here is now I have another project for asphalting a driveway on another property and because of their busy schedule they are unable to give a time estimate for them to come out, even if the timeframe is somewhere two months out or more, it doesn't matter to me. After having a conversation with Dan, who is very nice, he explained the dynamics of the business and what factors contribute to not being able to define a time. I still hope to do business with them because of their high reputation even if it means a later time down the road.

The whole house generator was running really rough and I discovered a bolt had sheared off in the…read moreintake manifold of the engine. Korthase and Sons gave us all of our options and took the time to bring the whole unit back to their shop and rebuild the engine, saving us thousands over a new unit! They were incredibly upfront and professional, and the generator runs like a dream now! We will use them for all of our electrical needs.

My 95 year old mom lives on a fixed income, in her own home, which was built in 1936…read more Her kids (including me) have been worried that she needed her electrical updated bc we had no idea if it ever had been. We got 3 estimates from licensed, insured electrical companies in the Muskegon area. The estimates were all fairly similar. BUT Korthase was the only one that was honest in telling us that her current electrical actually looked pretty good (it must have been updated from when the house was built, but we had no way of knowing that) and given that she would not likely be in her home for all that much longer, they said in their assessment, a big upgrade was not necessary. This saved my mom 5k! Apparently, there ARE honest companies and Korthase appears to be one of them.

malburg's is excellent, came out pumped the septic tank and we couldn't be happier…read more excellent employee scott; taught me a few things about my engineered septic system. a big thank you.....:)

Draining issues summer 2024. Called Malburg's to come out and pump tank and check over for issues…read more Charged $280, said looked good in August. Returned to cottage spring 2025, issue was worse. Called Barney's. Used camera to diagnose - roots in pipe & could see by small trickle emptying into tank. Fixed, charged $245.

Love these guys. The guys are always super pleasant and easy to talk to. Have used them probably…read more4-5 times now for plumbing, cooling, heating, and I think even a dryer vent issue. We've definitely used them for any service they offer at this point. Always quick to fix the issue, prices are reasonable. Very knowledgeable and give guidance on maintenance to avoid future problems.

Called them last fall for a simple furnace conversion which I had all the parts for...they told me…read morethey would cap the service call at 2000.00 and that is the price they could quote me. Called another place...they told me 150 to 200 over the phone...ended up being 150.00. Tried to schedule a quote from them thru work...they didn't show for the appointment...called me 20 minutes late to tell me they had just arrived and wanted me to come back to the building. NO THANKS.

I am very pleased with our replacement geothermal heat pump. It is much quieter and more efficient…read morethan the 20 year old water furnace. Matt is knowledgeable and he was the only one that would even come out and look at the job. I tried 6 others and none wanted the job, content to let us old people freeze to death. Tetco is not a name I am familiar with, but so far I am enthusiastic with the perfo