I had a pleasant experience with this company and the staff. Deion is friendly, knowledgeable, and goes the extra mile. The workers are competent, through, and polite. I would not hesitate to use them again in the future.​ read more

Can't say enough good things about Alliance. Brian Thomas was amazing to work with. He kept me informed and kept the project progressing quickly. He worked well with the other vendors ensuring everything stayed on track. After the abatement was completed, he even connected me with the HVAC repair person in another part of his company. The HVAC repair person came out quickly in the middle of a heatwave and got our unit running again. Would definitely work with them again. read more

Absolute nightmare of a company. Seven weeks of delays and I just gave up and went with someone else. I called more than 45 times before they put the person I was told was my project manager on the phone, and he said "oh I'm in LA, your project manager is this name that isn't on the contract or in any of the emails" Got hung up on almost every time I called. This included by the department manager and a vice president. I'm disgusted. Strong avoid. read more

I would very strongly caution anyone considering Alliance. Alliance was the HVAC contractor on our remodel. Since we moved in to our home in fall of 2024, we have experienced constant thermostat issues as well as three major AC-related leaks caused by their installation, severe enough that we had to take our mudroom, entryway, and primary bedroom closet down to the studs. Two of those leaks resulted in confirmed mold requiring professional remediation. From the beginning, things were not working correctly. Our thermostats behaved erratically (cooling triggering heat, large temperature swings), and it was extremely difficult to get them out to address the issues. Initially, I was communicating with them through our contractor and was told they were inflexible with scheduling. We were given one date (communicated the morning of) that did not work, and then told it would take two to three weeks to be seen, while we had a non-functioning, newly installed AC system. During that same time, they had no issue putting together and trying to sell us a $11.6k/year maintenance contract (photo attached). We eventually had to call another HVAC company just to get basic functionality restored. That technician was very helpful and identified numerous additional installation issues. He advised us to document them and have the original installer correct them under warranty. Despite the severity of the leaks and issues, the company never took full responsibility. Instead, they deflected blame; at one point even claiming that the second HVAC company we had to bring in had "sabotaged" their system and stolen their leak detection components, which was frankly absurd. At each step they have pointed the finger elsewhere, refusing any accountability. The situation escalated to the point where we brought in a forensic HVAC expert to determine fault. His report (photos attached) documented widespread defects: improperly installed condensate drains, missing safety components, poor support, airflow issues, debris left in the system, and more. We were also told one or more of the systems was incorrectly sized, which contributed to performance issues and at least one of the leaks. The report made it clear this was not an isolated issue: it was a system-wide installation failure. It documented major code and installation violations, including improperly sloped drains (directly causing the leaks), missing overflow safety switches, cracked and misconnected drain lines, damaged internal components, unsealed ductwork pulling in fiberglass and attic air, improperly supported ducts restricting airflow, and unsafe electrical wiring. Some units were even missing critical components or were not fully installed. This was not one mistake, it was a pattern of careless, incomplete, and below-code work across the entire system. This all happened while I was pregnant, with the third major leak occurring two weeks before I gave birth, requiring our entire entryway to be demolished. Even now, the system still does not function properly, with more than half of our units not working (including the nursery). Instead of fixing these issues, they implemented temporary workarounds and are now attempting to blame "user error." They have since stopped responding entirely. We chose not to pursue legal action despite incurring significant out-of-pocket costs. Our contractor's insurance company ultimately pursued a claim related to the damage, resulting in a $200,000 payout. This was not a minor issue or bad luck--this was systemic poor installation, lack of accountability, and extremely unprofessional behavior. I would not trust this company with any HVAC work. read more

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PRESTON was referred to me by ANNA BRANCH @ MY HOME MY HEALTH. There were elevated mycotoxin testing throughout house. Benny and his team were so cordial and accommodating, explaining the process thoroughly. Thank you to Antonio, Lloyd, Alexander and others who created superior containments and worked several days nonstop to capture and irradiate the issues. Looking forward to a clean healthy home! read more

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I had to have asbestos removed from the flooring in my rental unit and I needed it done quickly. I googled possible service providers and selected Alliance Environmental Group because they had solid reviews. Now I see why!! Deion, one of the managers, called me immediately and came to the property to make an assessment that same day. Within hours, we had an executed contract and work began the following day. The price was very reasonable as well. Deion and his crews were very experienced and they did a great job. In four days, all of the asbestos had been removed. When I had professional testing to make sure, I passed with flying colors. It was such a relief that everything went so well and my new flooring installation could proceed. I would recommend Alliance Environmental Group without hesitation. read more

I hired Alliance Environmental for an asbestos abatement project in July, 2025. During the process, I chose to optionally remove the asbestos "popcorn" material inside my HVAC utility closet. I was quoted $900 for that portion of the work. After they removed my HVAC system and had it sitting on the pavers in my backyard, I was then told they "forgot" to mention that there would be an additional fee of approximately $1,100 to disconnect and reconnect the HVAC system. That cost was never disclosed upfront. By the time they brought it up, my HVAC unit was already disassembled and out of the closet. I was essentially put in a position where I had no real choice. Had I been told from the beginning that the true total for this optional portion of the abatement would be around $2,000, I would not have authorized it. To make matters worse, six months after the work was completed, Alliance contacted me claiming they made an internal billing mistake and that I owe an additional $1,500. Reaching out half a year later to demand more money because of your own billing error is beyond unreasonable. This complete lack of transparency feels like a ploy to pressure customers into spending more money after the fact. It is unprofessional, dishonest, and unethical. I cannot and would not recommend this company to anyone. read more

Brian was communicative and very respectful of my tenants belongings. We had a lot to remove and they did a great job. I appreciated their commitment to getting the job done safely and making double sure that we passed all the mold and asbestos tests. I hope I never have to use them again, but if I do --- I would feel comfortable calling Alliance. read more

Alliance Environmental Group - My bathroom after the remediations - Demolition Services Near Me - San Diego, California

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Alliance Environmental did a great job with our cleaning. Alan and the IAQ Team were professional, timely, thorough and communicative. Scheduling was also reliable and organized. read more

I scheduled an appointment with project manager Jonathan Schott to review my situation and provide recommendations re potential mold. He was very cordial and listened to my concerns and the advice he gave me was very reasonable. I praise fairness above almost everything and I would definitely contact this company should I require their service in the future. read more

We had a chance to work with Alliance abatement on several occasions.I have to say that the company is very professional, always on time, provides quality abatement services. Their staff is knowledgeable and experienced. Thank you for job well done! read more

I had a pipe burst that could have easily been a nightmare situation. Thankfully Brittany with Alliance was a huge help. My living room ceiling had collapsed due to a leak in my attic and Brittany had her team come out the next day to help clean up and safely remove the remaining insulation and drywall for me. She was very professional and communicative. Much appreciated! read more

Alliance Environmental Group - Demolition Services Near Me - San Diego, California

For abatement work. This company is one of the best. I've been working with Brittany Locke for scheduling. She has always come through with a great crew and followed my timelines. The following 3 field personnel have been great. Always on time, very professional, and cleanup the work areas throughout the day. Alexander Garcia is the lead man of their crew. Great at keeping us on schedule. Very knowledgeable in the abatement process. Has passed every air clearance on the first call. Jose Hernandez and Armondo Aguilar are always working. They are part of a great crew. Would and will use them again. read more

We recently had a couple of issues that required mitigation. (Hooray, 1934 home!) Asbestos on roof mastic project- Respectful, efficient, communicative, and done! Water intrusion in attic that required going through our plaster ceiling- Again, respectful, communicative, and very happy with results! Alliance employees were very respectful about kids, our loud/interested doggies, and my work-at-home needs. I especially want to compliment the clean-up afterward. We would definitely use their services in the future. read more

Alliance Environmental Group - Appreciated photos of moisture readings sent to my husband and me to validate. (1 of several) - Demolition Services Near Me - San Diego, California

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We had a terrible su in two of our bathrooms and thriugh our insurance we had the team from Alliance come to our rescue. Our coordinator Britney was so polite, efficient and responsive. The on site crew, Juan and Hector, arrived promptly and set up a safe, protective work environment to demo the mold in the bathrooms. We were impressed and thankful for their hard work. read more

Alliance was a reliable partner in navigating an otherwise anxiety-inducing situation. Our contractor found a leak and exposed old mastic in a closet. Faced with multiple hazards to remedy, Brittany's guidance and patience were invaluable. She helped demystify the required abatement steps and rapidly mobilized the team. They were incredibly efficient, finishing a full 1.5 days sooner than expected. The speed and, most importantly, the reliable safety with which Alliance cleared the area gave me complete peace of mind for my health, my kiddos' health, and our home. read more

Had a water leak at my house 2 weeks ago. It was a stressful situation specially a family with two young children. It was my first time dealing with this situation, luckily my insurance was on top of it. Brian from Alliance Environmental was one of the gentleman I met during the process. Brian is very responsive, he's very accommodating when it come to scheduling the inspection and demolition. His team Rafael, Chris and Angel are professional & efficient, they got the work done one day, clean up everything. Brian and his team are awesome!!! read more

I had a mold problem in my new home. It was a difficult situation for many reasons. Preston Martin at Alliance Environmental was so compassionate, professional and thorough. He and his team did a great job cleaning up my house and now I feel safe in my home again. Working with them was easy. Their workers were all so nice and comfortable to have around. For a difficult time, they made it as painless as possible. They were quick, too. No one wants their house torn up for long. We passed all of our post mold testing. Their price was about 1/3 the price of another company I was considering. Also, there were no surprise up charges. Some companies do that routinely. I saved so much money going with them. Preston worked with me on my concerns and, where we did add extra work, the price was VERY fair and nothing was a problem. They have special knowledge and training on how to clean homes for people who are medically sensitive to mold, like me. Thank you Alliance Environmental. I hope I don't need you again, but if I do, you will be my choice. read more

Great customer service before, during, and after our asbestos removal. Preston organized it, answering texts on a Friday evening, and followed up after to ensure satisfaction. Angel was professional and courteous and completed the work promptly. read more

This team came in on time every time just like they said they would. Friendly, communicative, and professional! I would hire them again.

Recently had abatement done at my home following an unfortunate leak and flood. Brian Thomas was an amazing communicator and organizer. Every concern was addressed promptly and clearly with obvious care for my satisfaction. His crew of Jose Rodriguez, Jonathan Osuna, and Conrad Hernandez did a great job with the work and things went smoothly at every phase. Highly recommend. read more

Originally I posted and rated 1 star. I'm changing my review to 3 stars. Customer service wise they get a good rating because Brian took time to respond to my comment. Not just a half as "oh I'm sorry" he actually called and listen to my concerns and what happened. We determined some things were at fault of my property management company, but the things that warranted, did he took accountability for his team and investigated the matter. I do appreciate I felt heard and not just given some standard answer. Thank you Brian for assisting me with this matter. read more

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To Brian Kellerer and his awesome team Carl, Deion, Juan, Hector and Jesse. Thank you guys for being so amazingly kind and professional!!!

I worked with Alexander Garcia and Jose Hernandez on a Bank of America job. These guys always do a great job in a timely manner. The work area is always spotless by the time they leave. Appreciate the great work read more

Well I must say that it was refreshing to have timely and professional workers in my residence during a chaotic time. Raul and his team conducted their asbestos abatement work fast and efficient. The asbestos tester Cashmere, was cool as fan, great work ethic and communicates well. After all the work was done and testing completed....NO MORE ASBESTOS! Hat's off to Mr. Carl for cleaning up the work site in such a systematic way that left the place plastic free. However, all good running machines like this team, have to be lead by someone who know's what they are doing and is professional, patient and has verbal skills to help this process run seamless..for me it did..so thanks for being amazing Josh..your team rocked......I have to tell others...Ya'll Rock read more

Alliance came out to our property on super short notice to help abate some asbestos that had been found during an inspection that was done prior to a major renovation that was slated to start within days in our home. From contact Brittany was professional and courteous. She was easy to contact and was very understanding of our time crunch. The team showed up on time and worked quickly and efficiently and most importantly cleaned up everything!! Cost seemed fair and reasonable and to be honest - I was not in a position to haggle.. Our project was able to start on time and we're happy!! Would recommend Alliance for sure! read more

Highly recommend Aaron and his guys at Alliance! First, they got me in so quickly as I needed to get work done before mold remediation could start. Second attention to detail was absolutely amazing, so careful with everything around the house and their tools, super thorough and fixed some trouble spots with some of my vents. The crew, Alan, Pablo, Angel, and Bryan were so polite - all very hard workers! I think they even left the house cleaner than they found it . I especially love the before and after pictures of some of my really bad spots that Alan shared! Once again, highly recommend these guys! - Danielle read more

Great service from field manager Preston, easy to work with and very accommodating. Technicians Alexander G. and Jose H. were excellent, professional, clean and timely. Thank you Alliance Environmental group. read more

I have worked with Alliance for several years on the property management industry and now in a related field. Alliance has continually been there for any of my needs and has delivered services with quality and efficiency. Alliance has some of the best pricing around and has the most knowledge and helpful team. I look forward to utilizing them for many more years! read more

I had to have an abatement done on my townhome, and the Alliance environmental team was outstanding. First and foremost, Brittany Locke. Where do I begin? She reached out to me right away and I could tell she felt the same sense of urgency to get things done that I did. She was communicative every step of the way, and brought me so much peace of mind in a time where it was truly invaluable to me. I can't thank her enough for her kindness, understanding, swift action taking, constant contact, and just overall amazing service. Also, want to shout out Ellie on their billing team as she has been very kind in working with me and my situation, and has been very transparent along the way which I appreciated greatly. Please give these incredible people a raise. They deserve it. Finding people like them are rare, and I will always remember how they made me feel during this time. I can't recommend them enough!! Thank you Brittany! Thank you Ellie! read more

Alliance Environmental Group performed a Mold Remediation Service for us on a building my company bought. Both Blake and his boss Conrad did a great job handling all of the technical details, were prompt in returning calls and keeping us advised all while providing a very competitive price . They were on the job when thy said they would be, got the job done as quoted and made sure the quality of the work was excellent. They also worked closely with the Titan to help setup the certification testing making this process as seamless as possible for us. The building is now in excellent shape and I would highly recommend them for anyone considering them for these types of efforts. read more

I was quoted $1200 to clean my hvac system in my tiny townhome. Originally I decided to not go with these guys, because it was way overpriced for what I needed. Even Aaron who quoted me, admitted they were much more expensive than other companies. I wish I had walked away then. But-I needed this taken care of quickly, and Alliance was able to show up a week later. They were so quick, that they even finished the 4 hour job early...All was well until I came home to a huge tarp balled up and thrown onto my son's bed. My son is highly sensitive/allergic which I let them know prior to coming, so I was infuriated to find this-not knowing what it was used for. Talked to Aaron who was in charge of setting us up, he apologized and said it was just a piece of plastic but that the employee would be written up and will return later today to pick it up. He declined my request for any kind of discount and said since nothing was damaged- he couldn't give me any money off the $1200. In my opinion that's just poor business. I do not recommend these guys. We won't be using them again. read more

I've worked with Brittany at Alliance for many years. They are extremely professional, thorough and communicative. Highly recommend!!!

We had an HVAC leak requiring demolition and asbestos removal. Our insurance employed this company to do the work. When I received the bill, the amount charged was greater than insurance allowed. I attempted to resolve this by email and did not receive the courtesy of a response. read more

Khris from Alliance is amazing. he walked me through resetting the code on my mom's thermostat. He is very professional and courteous. I recommend him. read more

We reached out to Joe with Alliance for a quote to remove an old pipe that has asbestos in it. He requested photos, and was able to quickly get us a very fair quote for the job. Fortunately, we did not need to remove the pipe but we will definitely contact them if that changes in the future. read more

I want to take this opportunity to say how professional Alex and his partner were today. They were both so patient and allowed my son and I to move out the remaining items that needed to be moved out of our kitchen. George was not kidding when he said "My life would be turned upside down." George has a great crew! It made the process so much better. They were very sincere and caring! read more

I can definitely see why this company has such low ratings on yelp. I recently utilize this company because the ac installed insured I use them. Yelp is definitely hit or miss but isn't usually far off. I had this company come and give a bid to remove aspetus ducting from an older home. The person that gave the bid did not bring a ladder and gave the bid without looking at the attic. The house is small and I understood already there would be areas that were difficult to get to which I made sure to tell him. His quote was hire than the other companies. In addition a closet that the ac was in he said was most likely aspetus and would be removed as well. It was not. I called while the tech were on the job and he said the probably tested it and decided it wasn't aspetus. I asked the techs towards the end of the job if they did, and they said they did not. In addition, the techs then said they couldn't get to some areas and would have to come back a second day adding an additional 25 percent to the price. Overall not too happy that their estimate was high to me, and then raised more after the estimate. Techs were polite and seemed to do a clean job. No issue with the workers. More an issue with the estimate and then additional fees because of a incomplete estimate. I wouldn't utilize their service again. Assume it will be higher than estimated if the bid doesn't even look at the job. read more

We recently purchased an older home that had asbestos-laden popcorn ceilings throughout. In addition, there were other, potentially "hot" materials that needed to be removed before we could begin renovation. Not knowing where to start and acting on a tip, we contacted Joe Cuevas at Alliance Environmental Group. I'm not sure we could've found a better person or company for the job. Joe began with a thorough inspection of our home, educated us on the finer points of abatement, and helped us coordinate testing of all suspect materials with a third party. Knowing that we desired to move as quickly as possible, he devoted several crews to our project, demonstrating a facility for bringing all available resources to bear on the job at hand and scheduling them accordingly. Deion, the head Alliance technician for our project, did an excellent job leading a group of folks who exemplified quality, efficiency, and professionalism each and every day. Throughout the project, Joe kept us up to date on progress with descriptions and pictures of work as it was completed. When our project was done, we had complete peace of mind knowing that Joe, Deion, and Alliance crews had removed any and all potentially hazardous materials from our home. The stuff they deal with has a direct impact on one's health and safety... I'm not sure why anyone would skimp on their choice for an abatement company. I'd say it's one area where one should hire the very best. With Alliance Environmental Group, as represented by Joe, Deion, and the crews that worked on our home, you'll be getting just that. read more

I worked with Sal and would highly recommend it. He was easy to reach, responded quickly to messages, answered my many questions, and kept me well-informed of the different stages. He and the workers were willing to listen to and accomodate my needs when unexpected problems arose, even if it required a little more time or work. The workers got the work done efficiently and were personable. read more