Highly recommend!!! We loved everything about our experience with them and so grateful for them…read morehelping us after a basement flood. 10/10

My parent's water heater suddenly burst the day after Christmas. Cornerstone was recommended to…read morecome in to help with mitigation. When I say these were the nicest, most charing people in a time of chaos and anxiety, I am not kidding. Jason and Brandon were amazing. My parents felt safe, heard, seen and valued. Brandon was helpful, supportive and kind. I certainly hope to never experience a water problem but if I did, I wouldn't hesitate to call Cornerstone. I truly can't thank them enough for helping out my parents. The speed, value, empathy and kindness won't ever be forgotten. Thank you!

Dangerous lack of communication: Two stars because the teams who did the work were responsible,…read morerespectful and we passed the health department inspection for lead removal on old paint windows after one re-test. However, communication was incredibly lacking about vital details like how long our family with two small children would need to be entirely out of the house for the project (not just the rooms in question), despite an in person meeting, signed documentation without those instructions and confirmations of project start date. Lack of clear instructions and communication on a matter so essential to the health and safety of our family caused a last minute scramble to find somewhere safe to live for over 2 weeks and additional worry as parents as they began the work while children were in the home. In response to these concerns, they offered a slight discount (and less than we amount we requested).

Wonderful experience from start to finish. Hired them for vermiculite removal in our attic. A few…read moreweeks after they had finished, we had some HVAC work done and more of the vermiculite fell out. I contacted A&B to ask what to do about it and they sent someone out the next morning to clean up and didn't charge extra. They were always prompt, professional, and had competitive pricing. Highly recommend!

After another recommended contractor never bothered calling me back, I requested an online quote…read morefro DuPage Radon Contractors. An excellent exerience from start to finish. Tim the designed called me back the next day and scheduled an appointment to come and assess the housse. Our radon level had been testing between 6 and 8. Tom did a thorough assessment inside and out and created a proposal including a sketch of the installation, including the EXACT cost, which was just under $2000 - very reasonable. I was impressed that they use a large diameter downspout (matching our existing downspout color) extending to the roof line instead of PVC pipe. They also install a housing over the outside fan unit which looks great. They also seal the sump pump with a new lid and seal all the cracks around the perimiter of the basement. The technician Jorge came out two weeks later and performed the entire install. He was amazing! He explained everything, and left it all very clean. Very professional and courteous. I retested the radon level a couple of days later and it tested at .27!!!!!I HIGHLY recommend Dupage Radon Contractors. You will not be disappointed.

The motor in my radon fan was failing and needed replacement. It is less than 3 months outside the…read more5 year warranty. I called DuPage Radon and the very nice woman who answered the phone made it sound like they might cover it, but when she talked to her boss, he said no. Their quote to replace the unit was $400 (they were originally paid approximately $1,200 five years ago) and the soonest they could do it was New Year's Eve. I was able to find the exact same model radon fan at Home Depot for $150 and it literally took me no more than 15 minutes to remove the old unit (and I've never done this before). I'll install the new one when it arrives in the next few days. I don't know about you, but $500 an hour for labor seems excessive to me. Obviously I'm in the wrong profession. Meanwhile, I'm going to remove the DuPage Radon sticker from the cover just out of spite.

We were very happy with VSI's services. When we called them we got an appointment for just a few…read moredays later. They installed radon mitigation equipment with no muss, no fuss, at a reasonable price. They installed the outdoor pipe in the location we wanted, whereas another company told us we had to put it in the front of the house which would have been an eyesore. They cleaned up very well when the job was done. We would recommend them to anyone.

The VSI Team is knowledgeable and does excellent work. We were extremely pleased with their…read moreprofessionalism and flexibility in scheduling.

Jensen Environmental Management performed air testing in our home for asbestos. This company was…read morevery professional and well versed in asbestos related matters. I worked with both Erik and Brandon. Erik took time via email and phone thoroughly discussing my worries about asbestos as well as educating me quite a bit about asbestos. Brandon performed the testing, he as well also provided great insight. The air testing report that we received provided great detail. I highly recommend this company.

Professional and incredibly responsive! During a construction project, our workman found what he…read morethought might be asbestos in our home. At 5:00 on a Friday, I called Jensen to see if they could help. They came out to do a test and had results on Monday morning. (Luckily, no asbestos!) I highly recommend this firm.

If you watch YouTube videos, you'll see house fires caused by not clearing out the vent, leading…read morefrom your dryer to outside the house.. Overtime, that can get backed up by dust, lint, birds' nests, etc. I've had all of this stuffing up my vent, making my clothes even harder to dry, if at all.. Anyway, my neighbor recommended Steve and Zach, a father and son team, and they're both very down to earth and hard working... Take a look at my pics, that's only half of the stuff that came out. I'm thinking of doing this for the entire house next with Airborne. FYI, even if you use the high level/top tier Aprilaire filters for your home, there will still be build up... Thank you, once more, Steve and Zach!! Give them a ring if you want to sleep and breath better...

I just purchased my first home and noticed the vents were...gross to say the least. After quite a…read morebit of research, I found Steve and Zac at Airborne and I'm so glad I did! They were upfront with pricing, availability, and what to expect ahead of time. Day of they were on time, friendly, communicative, able to work with me to keep my cats safe yet out of the way, and my vents are now so clean. Afterwards, they walked me through what they found in the vents and even let me know that they smelled gas downstairs, which led us to find out we had a gas leak. Genuinely went above and beyond expectations. I definitely recommend Airborne if you need your vents cleaned.

Just about everything. John the owner, helped me make the solutions for my attic insulation…read moreproject. The Installers were outstanding, especially Corey. He made choices they made sense and my wife happy. The crew was professional and respectful and knowledgeable. Highly recommendable

I cannot recommend Koala highly enough! Excellent company. I had John, the owner, out last year to…read morediscuss service options and to get a quote. We didn't end up doing business then, but I invited him back this past February and he gave me the same great quote and had his guys over to our place within 10 days fulfilling the contract we had agreed to. The workmen who handled the job, Corey, Steve, Damian and one other whose name I didn't catch, were exceptional, thoughtful and courteous in every way. The consummate professionals. If you're considering home insulation, you would do well to give Koala a long, hard look above any other option out there. Thanks again for everything, John!

They installed a replacement gutter over our front porch along with gutter guards…read more They also installed gutter guards on our 2 second story gutters as well. They were half the price as there competitor's and did an excellent job.

I hired them to do a small job @$600 of gutter extensions. They cancelled the day of due to…read moresomeone being sick and then rescheduled me for what was to be the first stop of the day so I would not have to miss work again for this to be done. When they were not here on time, I called and they said I was on the schedule for midday. I repeated the commitment to be the first person of the day and they rerouted someone to me and said they would still be able to complete the job by 10 am for me to get to work. When he arrived he informed me that he didn't have all the materials and needed to run to home depot - which at 9:15 would definitely not complete the job by 10 am. I told him to just cancel the work. There are other, more dependable contractors. Then when they refunded me, they did not include the credit card fees that they had charged! I called and they said they'd send that to me right away - it has been 4 weeks! I just don't find them trustworthy -