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"Fantastic. I have already used them again."

"Great. Work was done well and on time."

"On time, easygoing and reasonably priced. Quote was simple and quick."

"Last fall as I prepared to deploy to the Middle East with the Minnesota National Guard, we decided to replace our boiler, so my wife wouldn’t have any added stress while I was gone. The opposite has occurred. After I left, the boiler and hot water system was installed in. That went fine though they left a big hole in the floor when they removed the old boiler. Shortly after the new boiler began having problems losing pressure and my wife smelled gas. When the pressure drops below a certain level the furnace shuts off, so the house gets cold and there is no hot water. McQuillan came out and looked at the system, determined that the expansion tank had failed and replaced it. They said the gas smell was just old pipes. Things worked for a bit, but then started losing pressure and shutting off again. McQuillan came out, added water and the system came back on. A week or so later, no pressure, no heat or hot water. McQuillan comes out and determines the expansion tank had failed again. It gets replaced, water added, the system is back on. They showed my wife how to add water to keep the pressure up In asking what was causing the problem, McQuillan kept telling us that its an old house, and you have leaky radiators. We looked. A couple of radiators had a little rust line from the valves, but no water and the pipes were dry when our carpenter touched them with a Kleenex to check for leaks or moisture. Through out the winter, this keeps happening with my wife having to regularly go down in the basement to add water. She keeps looking for any sign of water leaks around all the radiators and heating pipes. It is frustrating and stressful. In early March, after being gone for the weekend, she came home and the boiler was out and the house near freezing. McQuillan put in an automatic fill valve to add water whenever the pressure dropped. Still insisting that the pressure loss had to be leaky radiator valves. When I heard about this from my wife I asked if they had done a pressure test on the system to try to determine where the leak was occurring. McQuillan said no, that isn’t standard procedure. (Other boiler installers said it is the standard). We hadn’t been able to find any water leaks from any of the radiators or pipes we could see, so I didn’t want to keep pumping water in afraid that the leak might be hidden somewhere. So I had my wife turn it off unless she was going to be gone for more than a day. The pressure loss keeps happening. Also the gas smell is still there, so my wife called the gas company to come out and check. They found not one but two leaks in the gas connection creating a danger significant enough that the gas company immediately turned off our gas in the middle of the winter. At this point McQuillan had been out to the house 6-8 time and things were still not right. We tell them the systems isn’t working and they need to start over. McQuillan goes through the system again and fixes the gas leak. They determined that the expansion tank was actually too small for our system and replaced it with a bigger one. Soon again no pressure. Not being able to find any leaks throughout the house, but unable to account for the pressure loss, we start to consider replacing the valves that showed a little rust. But I wasn’t convinced that was the problem as we weren’t seeing any water. We continued to push to have them reinstall the system. After the tenth+ visit to the house, McQuillan arranged to have the local rep from the boiler manufacturer come out to look at the system. During this they finally decide to do a pressure test. When the boiler was isolated and a pressure test was done, it was discovered that there was a crack inside the boiler. This took no more than 45 minutes. The water leaking to create the pressure drop was running from the crack inside the boiler through the condensation hose to the laundry sink—which is why there was never any water on the floor. So at this point they replace the system and four radiator valves that showed some rust. We will see how this winter goes. Regardless of whether or not it is your standard protocol to pressure test at the time you install a boiler, about the second time you were called out because of a loss of pressure it would have been the prudent thing to do to determine what the actual problem was. Certainly it should have been done before installing the auto-fill device, which only masked the problem by adding more water whenever enough had leaked out somewhere. If there had been a hidden leak in the piping, all that continuous leaking could have led to significant damage. While they didn’t charge us to replace four radiator valves, because they didn’t pressure test the systems, we don’t know if the valves actually needed replacing. The value of replacing something that may or may not of needed replacing is speculative at best.  As a result of all this, my wife had to miss multiple days of work dealing with all these issues that we should never have had to deal with, and were exactly what we were trying to avoid with having McQuillian install a new boiler. Instead, a complete nightmare at a time when my family was under intense stress already. We still have a hole in the floor."

"Eric and John did plumbing work at my home a month ago, and I was happy to see their familiar faces arrive to replace our broken bathroom sink. I had purchased a replacement sink that was ready for installation. The cracked sink was removed and the new sink installed. Eric quoted the job before the work was done so I had no surprise costs upon completion. Because I had previously purchased Aquarius’ annual plumbing repair plan, I was able to save on the service fee and saved an additional 15% on the job. Once again, I was impressed with Eric and John’s professionalism and attention to detail. The replacement is installed better than the original had been by my previous plumbing company."

"Small business is defined by their ownership. Ownership determines leadership, accountability, and service. It's pretty straightforward when things go right. The company is defined by how they handle difficult situations. Without going into great detail, there was a good faith mistake made. As soon as Robert, the owner of the company, was made aware of the situation, he immediately called, took responsibility for the situation and rectified it. He was professional, a good listener, and insightful in his responses and solutions. As far as the company is concerned, the estimates are accurate and thorough, the electricians are prompt, courteous, neat, and knowledgeable. Every company has weaknesses, but overall this is a strong company and I would highly recommend them for your electrical project needs. Frank R."

"Sandau Construction recently completed a window replacement project at my home. They were one of five contractors that I had out to evaluate my project and bid the job. The sales presentation was low pressure, comfortable and offered adequate time for question and answer. The company’s subsequent follow-up to the various questions and issues that I had was prompt, direct and informative. They never tried to “sell” me anything and focused solely on my desires and priorities. Their overall project pricing was competitive overall, versus the other contractors who visited. Pricing was clear and upfront and included no promotional games or gimmicks. With any major home improvement, one doesn’t want to overpay just to ensure quality. The Sandau Price to Quality dynamic was right where it needed to be. Given the high home improvement demand that has been experienced during the pandemic, along with supply chain issues, there was a very lengthy delay from the project down payment to the actual commencement of the job. Once underway, the project installation proceeded quickly. Installers were skilled, agreeable and proceeded in an efficient manner. The final results exceeded expectations. As window replacement is a major investment and expense for any homeowner, getting that all important comfort level from the contractor you’ve chosen is critical. I felt good with my initial selection and was also rewarded at the project’s conclusion. I highly recommend the company to anyone who is interested in a high quality experience in sales, service and product offering. Thanks both to Graham in Sales and to Stephen my Project Manager. Well done."