We are a small company, so every review below is from a real job and every word is the client’s own. We do not edit them, and we do not pay for them. If you want to read them at the source, they are on our Google listing, where we hold a 5.0 rating across 10 reviews as of September 2026. Most of the people writing them found something in a basement, a ceiling, or a wall, had never hired an abatement contractor before, and wanted to know what would happen and whether it would be done right. Here is what they said afterward.
From Google
“Carlos and his team came promptly, communicated clearly about the process and timing, did a great job, cleaned up everything and handled all the paperwork. I can’t rank them high enough. Highly recommended.”
Bruce C., Google review ★★★★★
“Highly recommend!! Sebastian and his team were wonderful to work with. We received a quote that was very reasonable. We were able to get our basement tile mitigated very quickly. The end result was absolutely beautiful. We were so happy we went with this company!”
Cindy M., Google review ★★★★★
“I highly recommend zero hazard! Sebastian and his team were fantastic. They were very flexible with scheduling and Sebastian was always available to answer any questions I had. My contractor came in after the asbestos remediation/gut was complete and said he’s never seen such a clean gut job. No nails, no debris left behind. Made it very easy to move on with my reno project. I will definitely give zero hazard a call if I ever need any more asbestos help in the future. Thank you!!!”
Sophie G., Google review ★★★★★
“I was completely lost in the process of applying for a demolition permit for a home that I planned on rehabbing in central Connecticut. Upon receiving the checklist of items required, I immediately researched asbestos abatement contractors. I was fortunate enough to have found Carlos Rosales at Zero Hazard LLC. He patiently walked me through the process, and immediately went to work establishing the state notification and abatement work. The process was quick, efficient, affordable, and clean. Apart from his aspect of the scope of the job, he also prepared me for the upcoming building inspections without worry. Thank you, Carlos!!”
Matthew P., Google review ★★★★★
“Zero Hazard LLC is an outstanding asbestos and lead abatement contractor. The President & CEO, Mr. Carlos Rosales, personally oversees each project and reaches out to clients to ensure their complete satisfaction. I truly admire this level of dedication and highly recommend their services.”
Vidya T., Google review ★★★★★
“I Highly recommend using Zero Hazard, LLC. Top notch service from start to finish. The leader, Mr. Carlos, is responsive, professional, helpful and very knowlegable. His workers were very friendly, hard working, courteous, well trained. They showed up when they said they would, finished up when they said they would, cleaned up completely and made sure I was pleased with the their work. WOW. I could not have asked for more. A++++++”
Sue H., Google review ★★★★★
“Carlos and his crew were prompt and worked quickly. Project was completed ahead of schedule, we couldn’t be more thrilled with the results. THANK YOU!”
Nicholas L., Google review ★★★★★
“We have used Zero Hazard twice now at two different houses and both times have received excellent service. Carlos and team do a great job. I highly recommend them!”
Glenn D., Google review ★★★★★
“Communicative, fast and cleaned up after themselves. Carlos is fantastic”
Zachary D., Google review ★★★★★
Read all of our Google reviews →
From clients who wrote to us directly
“The team was prompt and courteous. They kept me updated with the progress. The work was done professionally. The team cleaned up. The process went very smoothly. It was a pleasure to meet the team! I was extremely pleased and satisfied with the work. I highly recommend this company to anyone that is looking for professionalism, courtesy and gets the job done efficiently.”
Wanda F., East Hartford, CT
“I recently used Zero Hazard, LLC for my asbestos abatement project. The work was done promptly. The cleanup was neat. The air quality report was very good. Carlos and his workers did a great job. He is a personable and professional businessman. And his price was, by far, the best of any company I considered.”
Richard M., Waterbury, CT
“Carlos came to my house the very day I called, he explained every aspect of what the job entailed and began the day he said he would and finished the day he said he would. Carlos and his helper were both very professional and answered any and all questions my wife and I had, his price I felt was very reasonable and he was very neat. I would highly recommend him to anyone with an Asbestos removal project.”
Jamie D., Newington, CT
What people mention most
Reading them together, three things come up again and again, and they are the three things we care about. The paperwork: the state notification, the air clearance, the disposal records, handled without the client having to chase anything. The cleanup: the work area left cleaner than we found it, so the next contractor can walk straight in. And the schedule: showing up when we said we would and finishing when we said we would. Price comes up too, and we are usually competitive, but nobody in these reviews hired us because we were the cheapest.
Worked with us? Tell the next person
If we did a job for you, a short Google review helps the next homeowner in Hartford County find a licensed contractor instead of a guy with a scraper. It takes two minutes: leave a Google review. Mention the town and what we removed if you can; it helps people with the same problem.
Have your own asbestos or lead question?
Call or text (860) 416-0229 or request a free on-site estimate. Hablamos español.
Zero Hazard, LLC · Licensed and insured asbestos and lead abatement contractor · Since 2009