C3 is a great company. I'm so glad I hired them instead of other companies. His estimate was fair, and his communication was great. As I am sure most people get really upset finding out there could be black mold in their (newly remodeled) home. Nathan was very patient with my millions of questions, and also at handling my tenant who was very worried and angry. It took a little longer than expected but understandable with all the rain. Global warming, and the larger volumes of rain coming down all at once create standing water or water that can seep into cracks near properties..... going to make a lot more work for C3. I had called a bunch of other companies and they were a total nightmare to deal with and their estimates were 6x what Nathan charged. Not only were they horrible companies but they lied to my tenant when they gave the estimate which sent her into a tailspin. I highly recommend this company. They are honest and fair, and got the job done within a week or two of my initial phone call. Also I read the fine print t in the contract so I knew that they don't repair damages caused by tape on walls floor etc. my apartment has painted floors so I sort of expected tape would pull up paint. This company definitely made a bad situation better. read more

Casa California Condominiums experienced a serious drain backup on the first floor twice in two days in mid April 2025. His remediation team came within an hour, and stayed into the evening to clean up sewage water, set up fans for drying, mop floors and assess damage. The second day the drain backed up again. C3 showed up to clean up the water all over again. They were able to assess the damage to the tile and laminate floors, bring in a licensed electrician to assess the water sitting in raceways under floor outlets, check for mold and do damage control throughout the lobby, laundry and community room. C3 connected our association with another team of excellent sub contractors; electricians, cement technicians, flooring experts and cabinetry installers. Nathan's ability to work with our insurance adjuster every step of the way ensured that our extensive claims were covered and paid quickly. His billing system matches up with today's insurance standards. This was invaluable to the HOA and residents. There was never a time when we did not have full access to Nathan with any issue that arose. His communcation with daily schedules and workflow was excellent. Casa California highly recommends Nathan and his team for remediation and/or general contractor work. read more

Highly recommend Nathan and his team for mold remediation services. Their professionalism, efficiency, and responsiveness played a major role in helping us move forward with inspections and overall property improvements. Great communication throughout the process, and we truly appreciate all their hard work and support. read more

This is long overdue. During the rains in December and and January my roof leaked into my attic and let's just say it was a disaster with the Tenant relocated for 10 days (no fault of C3). I had a mold test done and there was mold remediation needed and I called C3 and they took all that off my plate and with fair prices. As a property manager, and my mom going in the hospital, seriously a bad month but C3 took a very difficult task off my plate. THANK YOU. read more

Nathan and his C3 team were great, we'd recommend them to anyone needing mold remediation. Our guest room ceiling had mold from a roof leak and C3 was helpful and efficient with the mold remediation. I even accidentally overpaid them and they were the ones to notice and reach out to refund me. read more

Unfortunately, our house was covered in soot & ash from the Eaton fire, and we needed a thorough cleaning. The entire house smelled like a campfire, and it was hard to be inside (even with a mask on) without our eyes stinging and our throats getting irritated. We chose C3 Restoration to make it safe for us to move back into our home, and we are so happy that we did. Nathan & Jacob (& their team) fully restored our home & our yard - making it look (& smell) new again. We are incredibly grateful for their help. Their pricing was very reasonable & they laid out all of the steps (including testing), for us to consider. read more

Although C3 had completed the job quickly and professionally, I had a deeply disappointing experience with their owner after discovering damage to my tile flooring. The issue wasn't so much the damage itself but the fact that when I raised this issue with the manager, they dismissed my concerns and claimed that such damages were not covered nor caused by them despite clear evidence to the contrary written in their contract. Upon further pushback he flatly denied any possibility of wrong doing and became extremely defensive. This lack of accountability is both frustrating and unethical. If you decide to work with them, make sure you document your home before and to ensure you avoid this situation as I wouldn't count on C3 to make things right. read more

C3 Restoration Services - Damaged caused by C3, response was just denial and rather unprofessional. - Damage Restoration Near Me - Los Angeles, California

Nathan and the team at C3 were responsive and able to quickly address our issue. Alex was very professional setting up and managing the job, and Nathan continued to be available for questions throughout the process. I definitely recommend C3 and would use them again, for sure. read more

C3 was one of the companies I contacted for an estimate for mold remediation. I had a problem where a toilet leaked through the floor into the ceiling below, causing a collapse of the drywall and revealing mold that grew from it. I was put in contact with Nathan who quickly and personally went to visit the property to provide an estimate that day. C3 provided very reasonable quotes; in line with others I received. While I was unable to use their services due to disagreements with my home insurance, I greatly appreciated their responsiveness and professionalism and understanding. If available, I would certainly reach out to them for opportunities in the future. read more

I contacted C3 for a second opinion after a contractor told my brother in law that he had black mold in his attic and was going to charge him upwards of $33K for remediation. Nathan came by, inspected the attic, showed us pictures he took and explained that what he saw was not black mold but rather the oils from the wood, black from asphalt leaking through gaps from roof repair, etc. He also explained what one would expect to see if mold was present. We appreciated his honest assessment and will be sure to contact C3 in the future if we ever have any actual mold issues. read more

C3 restoration is awesome and I will recommend them to everyone. They're honest, reliable, friendly, and professional. I reached out because we had mold growing in our closet. Having dealt with mold growth before, I was bracing myself for testing, demolition, clean-up, rebuilding and a very hefty bill. However Nathan assessed the situation and told me he didn't think it was necessary. Then proceeded to walk me through why he didn't think all that was necessary and ended up paying way less than I did previously. Will definitely use them again in the future if anything comes up. read more

If you want a great restoration experience C3 is a wise choice. We had a leak from a bathroom above the garage and developed mold. I chose C3 based on the estimates I had acquired from them and other services. C3 was reasonable. I also read all of the reviews on yelp. I was very happy with the communication with Nathan, and both Alex's who did the actual work were excellent. the entire experience was seamless. They were professional, efficient and the three days of work was painless. I highly recommend them. read more

Excellent quality of work. I had a terrible sprinkler pipe leak. These guys were prompt, meticulous, and most importantly, excellent communicators. They deal with insurance companies very well. Recommend very highly. read more

I can't say enough great things about Nathan and his whole team. The communication was always prompt and friendly, which is one of my biggest pet peeves and issues I've had with past contractors. He was very transparent and professional with the quotes he provided. And the quality and thoroughness of his work has been amazing. From mold removal to reconstruction, his team was great. Had mold in my closet due to rain getting in through a window. He removed the mold from places I didn't even know it was and then reconstructed it and couldn't even tell there was ever a problem to begin with. Would definitely recommend to others. read more

See all

Contacted C3 for leak/waterproofing in basement area. Exremely, timely and thorough estimate. Unfortunately, the scope of our project is out of the scope of this company. In the future, i'd be happy to reach out to them for their speciality. read more

We live in Altadena, and are very fortunate that no homes on our block or immediate surrounding blocks were burned. We also have fairly new windows and they kept out a lot of ash and smoke. So while our home was not severely damaged by ash or smoke, we wanted to have it professionally remediated as we have young children. After being ghosted by one company, I was on the search for another and was encouraged by the good reviews of C3. They are very responsive. I was contacted within the hour and I appreciated that they provided a price sheet in their email so it was transparent. I didn't love that you had to pay $250 before they inspect, but they said it would be given back if we went with them. We had a walk through, and again, very responsive, very personable. We were told that it would be a 2-3 day cleaning and an additional 2-3 days with hydroxyl fans running for a level 2 cleaning. Then the quote came in; we had asked for a quote on cleaning the ducts and cleaning some upholstered furniture. We went with another company to do the ducts so we asked to remove that. The updated quote came back with a $1,500 furniture moving fee. We asked about that, and were told they would remove that, and that they would not clean our upholstery, but would keep that fee on the quote. We were feeling apprehensive but desperately wanted a cleaning so we agreed. We also had to pay 100% upfront before the cleaning began. There is not a line item on the quote for the $250 deposit but we were told it was included. The rate was reasonable, especially compared to other quotes I have been hearing about from other companies. We had to remove all art from the walls and move all our furniture away from walls. We asked them to please clean the fireplace and to focus on the laundry room especially behind the appliances as that room received the brunt of damage. Cleaning day arrives. They start. My husband had to leave for a bit and when he came home a few hours later, the guys were sitting in their car. They ran back into the house when they saw him park. They cleaned for around 5 hours and then we were told the entire job was done. They did not clean the fireplace. Of course they need a lunch break, but they were not eating, and then they left for good 10 minutes later. We pointed out that the fireplace was not done, and they did end up doing it when they came back for the hydroxyl fans a few days later. My husband ran a paper towel under the dryer and it came up dirty. I want to give credit to them, the floors were very clean and they did a good job on the windows. They are very responsive and have good customer service. Did they remediate the house? Yes. Was it a thorough and detail oriented clean? I do not believe so. So many of us in Altadena will need remediation cleanings, and I think it is important to get the full picture before working with a company. read more

OMG. I got quotes from all over the place including the national guys. No one could match the quote from C3. But even more important is they were great to work with. Did what they said, when they said, and did it all so perfectly. You owe it to yourself to talk to Nathan and Jacob. These guys are the best. Fast, clear, and meticulous. I was so happy with the results of my remediation. read more

We discovered a rotted-out drain pipe in the exterior wall of our brand new (to us) condo as the outside stucco wall had "bowed away" from the sill plate leaving a substantial air gap which had allowed moisture to enter the wallspace. For years! Signs of moisture intrusion suddenly appeared on the inside wall board, which was consequently cut away. C3 Restoration services was engaged to do the mold remediation and subsequent certification. I contacted 5 candidates from (of course) Yelp. 2 were disqualified for bad phone communication. 3 were invited to come take a look and submit a bid. C3 was the first to respond that the first to arrive on site. The next day. C3 was quickest to submit a bid. And C3's bid was the most detailed. And C3's bid was the cheapest. C3's team cut out the wallboard further, installed a tent, installed equipment to do the dry-out all within a day after our approving the bid. Could not be faster. Dry-out completed, C3 came back and did the remediation and took samples for lab testing. C3 said if the mold tests showed mold, they'd come back and fix it but they assured us an unfavorable lab result was highly unlikely. We took this as a guarantee of their work. Lab results showed site clear of mold. So, yes, we are highly satisfied with the work itself and also want to mention that Nathan Carrasco, project manager, was responsive, communicative and solicitous. He forwarded photos from the site to document as work it progressed. Very reassuring. I don't think you can do better. Period. read more

Nathan came to evaluate the restoration work, as my garage had two walls covered with mold. His team came and performed the job promptly, and the results were excellent. Overall, there was very good communication. I highly recommend it! read more

Nathan, Jacob and crew were very professional and communicated in a clear way. They were very polite and a pleasure to work with. Most importantly, they seem to know what they are doing. I received a few bids, and their prices were fair. I would not hesitate to recommend them. C3 Restoration Services all the way! read more

I'm a homeowner in Pasadena/Alta Dena who was looking for restoration & cleaning services as a result of smoke caused by the recent fires. One of the most important things for me when hiring someone to do work on my home or vehicle is trustworthiness. There are A LOT of stories out there right now about homeowners being quoted $25K plus for a cleaning. Now, while I do not doubt that in some cases, that's necessary, I also know of some properties that were not close to the fire and were being quoted this much. We see this a lot with auto services, too, suggesting maintenance on parts of your car that really don't need it. What I appreciate about Nathan and his business is that they're honest. He came by for an inspection before quoting, came in person, tested air quality, looked at the entire property, and then provided a very fair quote. I specifically asked him about the list of services that I had seen online, again, hey gave an honest answer, "here's what you need, here's what you don't need." I think that's so important right now, especially when there are a lot of homeowners who could be in a vulnerable position. Really appreciate Nathan and his business. Then, in part II, Jacob, a member of Nahan's team, along with a fairly additional team, came by the house today and did a very thorough cleaning. Just like Nathan, Jacob was super open to questions and explained things very well (and both of these guys are also really likable guys; easy to talk to, just nice guys). They spent the day cleaning both the inside and outside. Result? Prior to cleaning - there was noticeable soot on certain areas of the house and it definitely smelled of smoke in the house. Post cleaning - all gone. Highly recommend. read more

Nathan Carrasco promptly responded to my mold service request. As soon as all my questions were answered, an appointment was made and a deposit was paid. Service was professional and on-time. I would definitely recommend C3 Restoration! read more

Our family reached out to several companies and ultimately we went with C3 Restoration services. Nathan was very knowledgeable and answered all of our questions and concerns regarding remediating some mold from a closet. They could have told us we had to tear down the dry wall and reconstruct the closet but they were honest and recommended a service treatment instead. Anna who inspected our home was very nice and knowledgeable and Jacob who performed the mold remediation was awesome and took photos of the process as well. I would definitely recommend C3 Restoration Services! read more

Clear communication. Local Northeast LA and Greater San Gabriel community business. Competitive bid for our work, doing some mold remediation in our garage. All around solid. read more

C3 Restoration Services - Damage Restoration Near Me - Los Angeles, California

See all

Nathan and Jacob and the rest of the C3 crew were courteous, professional, and thorough in conducting smoke remediation at my Altadena house that survived the Eaton Fire. They checked in with my tenant and me daily during the four-day cleaning project. Inside the house, outside the house, and even up in the attic -- everything was cleaned completely and thoroughly, and the house is now perfectly clean and smells as good as new. C3 was prompt when I requested a bid, and the price was right. C3 was the right choice for me. read more

Every community needs businesses like C3. They were prompt, responding to our closet mold inquiry within a couple hours after requesting a quote. They were punctual, showing up exactly on time. They were incredibly knowledgeable, assessing our situation with confidence and reassuring us in person with their special tools of the trade. Most admirably, they were honest. Luckily our situation didn't require significant demo work and we were never pressured into any job/project. It doesn't get much better, and I wish all the various industries operated just like C3. Do not hesitate to consult with and do business with them. No one wants to have a mold issue, but if we do again there's no one else in town to call but this company. Much gratitude and respect to Nathan and his C3 team. read more

What a gem! We had a mold concern in our closet this past long weekend. C3 team responded in a quick manner when we were in desperate need for guidance on what the next steps should be. They were able to come check the situation the next day. They checked our closet and thankfully we did not need further intervention. We are so grateful for their valuable consultation which they did not charge for and even more grateful for their honesty in their work. read more

From start to finish, Nathan and Jacob were nothing short of amazing -- they were responsive, respectful and gave me the best quote from all of the estimates I called about, their prices are reasonable, especially for their work ethic and demeanor. They showed up on time and worked quickly, diligently and communicative. I really feel like I lucked out with C3 and wouldn't hesitate to use them again! read more

Cannot recommend C3 and their services enough! We've had them out for multiple jobs in the past year and they are always incredibly professional and easy to work with. Great communication and very knowledgable, I've never doubted that the job will be done correctly and efficiently with these guys. Highly recommend!! read more

I contacted C3 Restoration services to address mold concerns in our home. Nathan quickly responded and scheduled an appointment. He was professional and detailed during the inspection process. They took care of the situation the very next day. I highly recommend their services. read more

C3 came to our house following the Eaton Fire. We had numerous houses on our block burn, and had lots of smoke, ash and soot intrusion. The C3 team did a great job returning the house to a livable condition. Looking to move back in shortly. Thanks Nathan and Jacob! read more

Nathan and his team did a great job cleaning our house following smoke damage from the Eaton fire. Communicative and prompt, highly recommend! read more

Hello everyone! I have a family of 3 , including one dog - Our 3 year old lab had frequent vet visits , and daughter had a reoccurring cough that would resurface on the first of each month ever since we moved into our new home in Los Angeles . Very disheartening to hear our doctor say she had no idea where and why our daughter's cough persisted . Our dog and daughter sleep in the same room , at first i thought it was the dog fur , but luckily a neighbor asked if we have checked the home for mold before moving in . We had Nathan and his team come inspect for mold free of charge - come to find out our dog and daughter have been breathing in remnant's of 'black mold' from pre existing water damage for nearly a YEAR from a adjacent restroom. its been 6 months since remediation and both our dog and daughters ailments have not resurfaced . Serve pro came to offer a bid prior to C3 but wanted to completely remove all the walls and ceiling of the room without using ANY equipment to inspect . but C3's team identified the original source of the problem using detectors and 'chased the mold' and removed it until it was no longer visible saving us thousands in reconstruction. Problem solved . Infinite gratitude . Sorry for the late review but it's been wonderful to live our life normally without anyone being sick! Mold is the silent killer if left unattended . Good price, excellent service, great quality of care. Took care of all insurance stuff for us so we did not have to pay a thing. Extremely professional . Thank you C3 . read more

Nathan and his crew did amazing work on my home in North Pasadena after the Eaton Fire. There was a ton of soot in ash inside, the whole place smelled like smoke. Nathan was incredibly knowledgeable and honest when talking about his proposed plan. We met with multiple smoke remediation companies and C3 was the only one that didn't feel like it was trying to SELL me something. They gave me a clear scope of work, a straightforward and fair estimate, and were able to start work in a matter of days. Their work was thorough and efficient, and they performed multiple clearance tests afterwards to ensure the work was done properly (surface and air tests for soot, lead, asbestos, and other heavy metals). I highly recommend them, especially if you need smoke remediation after the recent fires. read more

C3 helped us manage the removal of mold in our kitchen ceiling. They were knowledgeable and courteous in their management of the issue. I do wish they had more supportive contracting services around their mold removal services, but they are good at what they do, so can't complain there. read more

We had a major leak in our primary bathroom caused by a broken faucet. I wasn't happy with the restoration company I used prior so I gave Nathan at C3 a call. He came out immediately and assessed the damage, gave us a quote and an estimated completion date for the demo and mold remediation. Nathan sent Jacob and his crew out the next week and got to work! They were good communicators and performed the work efficiently. Unlike the previous restoration company they finished the job on schedule. They also went above and beyond in identifiying an additional leak in another part of the unit that was caused by a busted valve in the ceiling. They were able to locate it immediately and prevent any further water damage to our living room floor. I highly recommend this company! read more

C3 Restoration Services is a responsive and honest company, and for that, they get 5 stars from me. I reached out to schedule an appointment, got a response the following day, and had something scheduled for the next day. Upon inspection, they quickly realized that their service could certainly provide a short term solution but recommended that our best bet was to also consider longer term options (which would not necessarily be within their scope of work). They were helpful, well-informed, and honest. read more

C3 did a great job on our mold remediation! We had a few different companies come out and we felt that Nathan and his team were the most professional and to the point. Everyone was friendly and everything got done efficiently. We felt the price was competitive and fair. Definitely recommend these guys, thanks again! read more

Nathan and his team assisted me with mold remediation following a water leak in my storage unit. They responded promptly, assessed the damage, and provided a fair quote on the same day. The team was friendly, professional, efficient, and took the time to answer all my questions. What more can you ask for? I will definitely rely on them for any future work! read more

Our Pasadena home was affected by smoke/ash due to the Eaton fire. I contacted multiple companies for fire/smoke remediation services, and ultimately chose to work with C3. Nathan quickly responded to my Yelp query, patiently answered all my questions about the inspection and estimate, and provided a reasonable price quote, but did not oversell their services or pressure me in the decision process, which I greatly appreciated after experiencing that with other companies. Jacob and his crew came the next week and thoroughly cleaned the home over several days. He was communicative throughout the process and diligently addressed rooms that were of special concern to me. Overall, Nathan, Jacob, and their crew were kind, knowledgeable, and thorough, and a pleasure to work with. They separately helped address areas that required mold remediation services in an equally experienced and diligent manner. Would highly recommend them! read more