Advanced Environmental Services Inc

We had 3 different contractors give us estimates. One didn't even come to our house, just gave us a quote over the phone. The first two both wanted to put the pipe in the basement utility room, which would have it running up the back of the house beside our deck. Roger Dahlby looked at that location, which would have the fan between and in close proximity to a propane shutoff valve and a central air conditioner. He said that that would be a code violation, which he would know since he helped write the codes. He suggested putting it in a basement closet which ran the pipe up the back of the house, out of sight. I offered that location to the other two contractors, and they refused. Roger showed up about an hour late and forgot to bring a ladder, but otherwise did a fantastic job. The work only took about 2-1/2 hours, was very clean and neat. He explained all the details of the work he did, and explained the warranty on the work clearly. The pipe in the closet is not in the way of anything, and once the clothes were put back in we can't hear the fan noise at all. The radon reading 2 days later was down to 1.3 pCi/L, well below the EPA limit of 4. He would not accept payment until proof of mitigation. We could not be happier with the work and the extra thought and care in placement. We are very impressed with Roger and his team.

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He was professional, prompt, and provided proper service. I would trust him to do more work.

After deciding to go forward with purchasing and having a Radon mitigation system installed, we never imagined having one in place by the weekend. This was made possible by Roger and his prompt reply to our phone call and his willingness to meet with us quickly as he happened to be finishing a job in our remote area. He explained in detail how a mitigation system works and developed two options paired with a cost estimate for each build. He then made arrangements to install our system that very weekend after he finished a job earlier in the day. The install was very systematic, no doubt aided by his training as an engineer. He is very interesting to talk to as I followed him around watching him that afternoon. He maked it look easy giving us peace of mind relatively instantly. He left his instant read meter to monitor the reduction of Radon over the next 4 days before returning to check the system. Only then after confirming mitigation below acceptable EPA Radon levels did he leave a billing statement. Good business! Four months later we have had zero problems and do not expect any. His warranty is also transferable to new home ownership if necessary. As a business owner involving daily customer service, I greatly appreciate his attentiveness, confidence and expertise. I would highly recommend his product and services. Good on you Roger! <br />

unknown

Perfect. As always. <br /> I am a Realtor. I use Roger Dahlby's services often for radon measurement and mitigation. He is super-conscientious about the work done. His jobs often look better than others thanks to his extra thought and care in placement and design. His prices are competitive in our market. He is my go-to guy for radon issues. <br />