I wish there is no star to give to John T McMahan Northwestern Nasal + Sinus and his team. This doctor was treating me for over 2 years. When I started I had appointments every two weeks, after a half year one appointment per month. I was taking so many antibiotics and steroids that my skin was very bad. I have even got very itchy rush all over my body. During these two years I was taking antibiotics almost every day. (With maybe 1 or 2 weeks break) steroids and other drugs/nasal spray all the time. His idea was to treat my nasal polyps. So he started with antibiotics that didn't help. He was making me the CT scans saying that polyps getting smaller after his treatment. Then he told me that I need surgery and so he did. After the surgery he said my nasal polyps are growing back so he put me on antibiotics for another year. (I went during that treatment to do my regular check up and my doctor was very surprise about how many antibiotics and steroids I am taking). She only mentions something to my understanding that I have very good insurance that pays for all that CT scans, surgery and treatment. (I had 11 CT scans during 2 years visits in John T McMahan office). I understood that these 2 years I was only using by this doctor to make money, because I didn't feel any better and he said that I will need another surgery. I had many side effects after taking so many antibiotics. My skin was horrible: my face was covered with pimples and very bad cold sores as never before. I had fungus in my feminine areas. I STILL HAD COUGH AND STUFFY NOSE. So, I stopped visiting John T McMahan. I gave break to myself and tried to recover after that crazy time and treatment. I was still coughing so after some time I went to see other doctor and I told him about last 2 years of eating so many steroids and antibiotic, CT scans, surgery, etc.. He checked me and prescribed me inhalers and said that I have asthma. I went to one more doctor that told me to avoid drinking cold water, eating cold food or ice cream because that making my symptoms worst (coughing and stuffy nose). Right now, I am using inhaler (during the cold winter season) and I am feeling good. During the summer I am not taking anything and I feel good as long as I am not eating ice cream or drinking cold water. I am usually starting to cough after being cold or eating cold food, so I avoid that. I am very sensitive to cold, especially for the air condition that I use in the car or when I go to cold grocery store during the summer. I always care sweater with me. It is hard to avoid cold during the winter in Chicago so I use inhalers during the wintertime. I also went to other holistic doctor try to recover and bring my organism back to health. So, I rebuild my bacterial flora, and I don't have any fungus in my body or pimples, or cold sore on my face anymore. I use very natural light medicine first when I have first symptoms. I tried homeopathic and Chinese medicine and it is very helpful and not harmful and without side effect. For the light coughing I use homeopathic or Chinese medicine and for bad coughing I use my inhalers. I wish to see my current asthma doctor at first instead of John T McMahan who is only care about making money. He shouldn't be calling a doctor, but rather a CT scan money maker. I really don't understand how he can prescribe so many drugs to me when he saw that it didn't help. Also the CT scans this is the biggest making money scanner in his office, in addition you can lose your health in his CT scans too (learn about side effect). The ladies from John T McMahan office were very nice when the insurance was covering everything and when I had best insurance, but when I changed my insurance they were totally different, not smiling and chatting with me as before, but bothering me only about the payments with totally different attitude. Please stay away from him if you want to be healthy because he can simply destroy your immunity systems and make you to be sick for other diseases. Also he can empty your bank account very fast. read more

I've never felt compelled to write a review until now. I've also never had a more positive experience. We had a pipe burst in our basement back in February 2019 which resulted in flooding and damaged floors, drywall and kitchen cabinets. We used McMahon Services to do ALL the work and couldn't be happier with the result. They came out within 48 hours of contacting to handle the remediation work (clean up, water mitigation, removal of all damaged materials). They were very professional and courteous throughout the entire process. John worked with us to help navigate the insurance claim process along with ensuring that we didn't get short-changed in terms of what was going to be covered. Never once did we feel like we were being taken advantage of nor left in the dark. John was also very good at communicating with us and setting expectations as to "when" work would progress and ultimately be completed. They were able to do all the water and damage clean up, install new flooring (switched from 70/30 carpet/vinyl to 100% vinyl), install new cabinets in the kitchen, built a net new storage closet and repainted the entire basement. Having multiple cats and dogs in the house, they were very conscious and respectful of the animals and made sure none of them tried to sneak out of the house. Communication was very key as there were a few days that we both needed to adjust the work schedule. They were very accommodating and flexible. Ultimately they essentially gave a brand new basement that we couldn't be more happy with. I would highly recommend this company for any water damage restoration, interior remodeling, construction, and renovations that your home may need. Thank you John, Peter, Rosa and Team!! read more

McMahon Services & Construction came highly recommended from several close friends. After arriving home very late at night after a week long vacation, I noticed extensive water damage in my home due to heavy snow and Ice. I called McMahon Services at their 24/7 emergency hotline and was called back within 5 minutes. They were very responsive and sent a team to cleanup and mitigate any further damage within a few hours. The project manager also guided me through the entire repair and insurance claim process without frustration. The team respected my home, family and personal belongings while working around our busy schedules. I highly recommend McMahon Services for any emergency or remodling services. read more

My experience with McMahon Services was wonderful. We used them for a new roof and had them back for new siding the following fall. I was most impressed with the honesty exemplified by John. I followed his guidelines as I am not a construction guy. We delayed the roof until spring per his suggestion as he had installation concerns completing the project in cold weather. The jobs were completed perfectly and I respect the hell out of a guy willing to delay his paycheck in the interest of doing what's right for the client. I will begin any future home improvement project by calling McMahon Services first. They're Good People. read more

Excellent service!! We had flooding in our basement and they did the clean up and repairs. Our basement looks beautiful!! It's our favorite room in our house! It looks so much better then it did before the flooding. They are very helpful with cost effective ideas to update your home. They were very professional. They communicated well and were always on time. They were great to work with and I would definitely recommend them! read more

Thank you John! No more broken pipes and no more mess. John was called out for an emergency and was prompt and professional. He was also very nice and didn't mind my kids running all over. The repairs were completed within 2 weeks even though the insurance company said it might take a month. I would tell anyone to use McMahons. Special Thank you to John! Can you babysit Sat night read more

I called and received immediate call back by Andrew. This went through insurance because of wind damage to my roof...the results were GREAT. I had an additional issue of an air conditioning unit on my roof to contend with--they took care of everything--IN ONE DAY! Rain came hard that night and all was well. read more

We hired McMahon Services to re-side and re-roof our house after a storm. They did an amazing job! I would and do highly recommend them for any work you need done on your home. They're extremely responsive and kept us informed through the whole process. We now have the best looking house on the block! read more

New roof installed in one day with zero mess on the ground to clean up after they left and it looks really good! Excellent communication with me and our insurance company. They also painted several interior room ceilings beautifully. I would use them again for sure. read more

Extremely responsive and reliable. Their work a perfect and their service is even better! They saved many of my clients from disaster situations. Very clean and very professional. Thank you McMahon services for helping me out many times! Jim read more

Had a great experience with this company, customer service was good. All details were discussed with me through out the project. Guys did the job well and within a reasonable time frame. I would recommend this company! read more