1. OJ Insulation

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Azusa, CA

OJ Insulation

4.2 (59 reviews)
Open • 7:00 am - 4:00 pm
Updated 1 month ago

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Response time

7 hours

Response rate

100%

Services - OJ Insulation

Insulation removal

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Garage wall insulatoin

Had these guys come back out and insulate my attic and garage outstanding work for a great price compared to all other quotes Next job will outside walls I cannot recommend this company enough spray foam insulation had my shed spry foam insulated, did not meet the crew myself but wife said they were very professional. The work they did looks wonderful. cleaned up everything when finished. will be doing my attic next will be using them as well

Love the real fire !

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10 years ago

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16 years ago

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5 years ago

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Griff J.

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10 years ago

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7 years ago

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Griff J.

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15 years ago

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11 years ago

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Ask the Community - OJ Insulation

Review Highlights - OJ Insulation

“I expect that most companies would sell the job even if it wouldn't produce very good results, but not Mark.”

Mentioned in 16 reviews

Read more highlights

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Marathon Insulation - Ceiling insulation install

Marathon Insulation

(148 reviews)

Sylmar

There's nothing negative to say. Jonathan was incredibly responsive, and his pricing is fair. He…read moredoesn't seem to have a great deal of overhead like some of the other companies out there. It's more of a boutique operation, which means he can offer you guidance without layers of people in between. Jonathan himself, or one of his team members from my understanding, will be up in your attic getting the job done, and they work fast. We requested insulation in our attic, and he came in and had it installed in just a couple of hours. He also replaced an attic fan that dated back to 1970, so our attic ventilation was addressed as part of the service as well. We noticed a major difference the same day, especially with the heat we've been experiencing here in Southern California. We recently bought a house that had inadequate insulation, probably somewhere around R-3, and now we're upwards of R-38. Our air conditioner was hardly ever cycling off. It was running almost the entire time since we bought our house in the middle of this hot summer. We were confused as to why the house kept heating up even while the AC was running. I called Jonathan to discuss the issue, and we talked through radiant barriers, attic ventilation, attic floor sealing, and the existing insulation that was there. He guided me through a cost-effective, value-driven process that made a whole lot of sense. He explained the benefits of each option, and ultimately we landed on starting with the insulation. That alone ended up curing the issue with our HVAC system not being able to keep up with the heat. Now the house feels cooler on hot days, and our AC isn't running nearly as much. We're incredibly happy we selected him as our service provider, and I would refer him to anybody who needs insulation or attic work done. Jonathan is the real deal. He's a genuinely kind and authentic human being, easy to communicate with, and someone who clearly cares about the work he does.

Jonathan came out on time to give me an estimate for insulation removal and new install. Even prior…read moreto him coming out, he already gives me the price per sqft so everything was very transparent. The day we scheduled the work, his team came out and got to work. They cover up everything with plastics and also turn on the filter around the house. They did an amazing job and took all the trash with them. I highly recommend this company, I think they're very honest with their pricing but doesn't fall short when it comes to the work.

911 Attic Insulation - 911 Attic Insulation. The right choice !

911 Attic Insulation

(219 reviews)

Hollywood

We recently relocated our furnace to the attic as part of a full HVAC overhaul, which meant finally…read moreconfronting a long-neglected attic situation. Old wood, minimal insulation, general chaos. Our HVAC contractor recommended pairing the new setup with fresh insulation and a radiant barrier to get the most out of our AC, so we got several quotes. 911 Attic Insulation came in mid-range on price, but they were the only company to include crawl space rodent proofing as part of the package, which pushed them to the top of the list. Daniel, the owner, was easy to reach and responsive throughout. When we talked numbers, he worked with us to fit our budget, which we really appreciated. The crew came out and handled everything in a single day. I'll be honest: our attic was a genuinely rough starting point. After the work was done, we noticed a recessed light had come loose. I reached out to Daniel and, without any hassle, he had someone out the very next day to fix it. On a weekend. That kind of follow-through says a lot. Overall, a great experience from start to finish. Competitive pricing, willingness to work with you, a thorough scope of work, and a company that stands behind what they do. Would recommend without reservation.

911 and Daniel, in particular, were incredible from start to finish. Daniel did our initial…read moreinspection and explained the entire process with photos and exact details, which made us feel secure in moving forward with him and his company. We got four different quotes and inspections for this project - which included a full attic cleanup of blown-in insulation and the re-insulation process - and Daniel held our hands the entire way. They were professional, communicative, quick to schedule, did everything in one day as promised, and took pictures along the way so that we could see what was, the ongoing process, and the results - which were phenomenal. We are very thankful and would absolutely recommend 911 to anyone looking for attic solutions. Thank you, guys!

Insulation Labs - Insulation Labs Logo

Insulation Labs

(97 reviews)

From the start, the people from Insulation Labs were professional and offered exceptional service…read more I had five different vendors (all 5 star-rated) come to see my house crawl space to give estimates for a vapor barrier (to stop humidity and the conditions that produce mold in the house). Before estimates came in, it was clear that Insulation Labs was the best-- Ray came on time, knew what he was talking about, answered all my questions, and followed up promptly with the estimate. In addition to being the best service of all five estimates, it was also the lowest price. Julio was in touch for all things scheduling. The team that installed the crawl space vapor barrier came on time when they said they would, cleaned up all debris following the work, and left the work area as they found it. Julio called after the work was done to ask how everything was-- and I told him that the crawl space door seemed to have been bent back a bit in a way that could let a rodent slip under the house (which is understandable given how much material they had to bring into the crawl space). Julio promptly made an appointment for his team to come and fix the issue, and they even added additional hardware cloth on two other spaces upon my request. Overall, I am extremely impressed with the professionalism, service, quality of work, and responsiveness. And the price was the best of all five estimates I got as well. I recommend hiring Insulation Labs for your job.

Insulation Labs is a good company, you will get more services for your attic insulation with a…read morecheaper price compared to other companies that I had requested for quotes. - Jon, the company's rep showed up on time and gave me a detail quote, all services prices were clearly listed and it was A VERY REASONABLE PRICE. - Unfortunately, due to time constraints, I couldn't go through with this company, however, I would highly recommend them to everyone.

Insulation Labs - Insulation Labs Logo

Insulation Labs

(361 reviews)

Van Nuys

Insulation Labs was recommended by my HVAC company (Titan Air Conditioning, Inc.) to completely…read moreoverhaul my attic & perform an "Attic Cleanup Bundle." After discovering some of my duct connections were wrapped in asbestos, a specialized asbestos abatement company was hired to remove the asbestos & everything in contact with it. After that was completed, Insulation Labs was hired to: Remove all of the old blown-in insulation (with a giant vacuum); sanitize the attic; Air Seal any openings into the attic including any electrical wiring or fixtures (ceiling lights, attic fans & plumbing/HVAC pipes or runs). Also included was Rodent Exclusion (performed by a pest control company) - sealing up any places that allowed entrance or exit into or out of the attic. And finally, Installing R38 roll-in fiberglass insulation (cut to fit inside of the rafters). The entire crew (up to 6 or 8 individuals) were AWESOME! Especially Victor & Domingo! They were constantly giving me updates & progress reports on what was happening, & if I asked a question, they would stop what they were doing & give me their full undivided attention, completely explaining things, & then make sure my question was answered, & then inquire if I had any more questions! They were amazing & top notch individuals - representing your company with honor & distinction, & reassuring me that you were definitely the right company for the job! THANK YOU for employing such wonderful & professional people!

I would stay away from this company based on my experience with their management and the complete…read morelack of professionalism I encountered. I contacted them regarding insulation work completed at my home in 2022 because I had recently been given concerns about its current condition. I was simply trying to get an explanation, verify what work had been completed, and let them know what other professionals had observed. I also explained that I would be having a city inspector evaluate it. Instead of having a professional conversation, Angel, the Operations Manager, raised his voice, spoke over me, and became extremely intense and intimidating. I was genuinely trying to understand the situation, not argue with him. Regardless of what the inspection ultimately finds, the way I was spoken to was enough for me to decide that I will not work with this company again. I no longer feel comfortable or confident having them perform additional work on my home. I will have the insulation independently inspected and address any necessary work elsewhere. Based on my experience with management alone, I cannot recommend this company.

OJ Insulation - insulationinstallation - Updated October 2026

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