The Attic Insulation Specialists
Licensed insulation contractor in Woodland Hills, Los Angeles, California
The Attic Insulation Specialists holds CSLB licence 1139733, active, licensed since 1 Jul 2025, rated 4.9 from 142 Google reviews. Bonded for $25,000 with American Contractors Indemnity Company. Clean CSLB record, with no citations, complaints or legal actions disclosed.
Report card
- Licence activeCSLB #1139733, class C-2. Issued 1 Jul 2025, expires 31 Jul 2027.
- Licensed 1 yrSince 1 Jul 2025.
- Bonded$25,000 with American Contractors Indemnity Company, since 1 Jul 2026. California requires the same $25,000 bond of every contractor.
- Workers' comp insuredThe Pie Insurance Company, policy WCPI4216891, valid to 11 Jun 2027.
- Clean CSLB recordNo citations, complaints or legal actions disclosed.CSLB record
- Website shows the licenceTheir own site displays licence #1139733.
- BBB AccreditedIts BBB rating, complaints and reviews are on its Better Business Bureau profile.BBB profile Complaints Reviews
Checked against the Contractors State License Board (CSLB) register on 4 Nov 2026.
About The Attic Insulation Specialists
- People on the licence
- Sergey Or (qualifier, CEO and president)
Google reviews
4.9(142 reviews)California Certified Paralegal★★★★★ 3 weeks agoView on Google
I had an absolutely outstanding experience with The Attic Insulation Specialists! They are true professional insulation contractor from start to finish. Their knowledge, workmanship, attention to detail, and customer service are exceptional. They helped us with insulation throughout the property, including attic, ceiling, wall, and floor insulation, and the difference was incredible. They also provided soundproof…
Lisa Feder Castenskiold★★★★★ 2 months agoView on Google
These guys were efficient, attentive, and professional. They did a great job. Sergei made sure I had all the documentation I needed for a large DWP rebate. My house is cooler, my attic cleaner, it was fast and they were clear in their communication about the process . I can’t recommend enough. Nice workers too despite being in a hot cramped dirty attic all day. I’m impressed.
Michael McIlhenny★★★★★ 4 months agoView on Google
Sergey and his team were wonderful to work with. They removed decades old insulation from our 2 car garage in 3 hours with a team of 4. Prices were fair and quality of work was great. They were able to listen to my needs as dust prevention/containment was a priority for me and my family. They kept it as dust free as possible and cleaned up afterwards. Would recommend and would hire again! Thank you AIS!!
Telmah Mali★★★★★ 6 years agoView on Google
Don't go anywhere else. This company did a great professional attic cleaning & insulation job for my property, now you can have lunch in the attic. Also the price was at least $1 less than the other estimates I had plus you could get 80% rebate. Alex was very nice and professional. Ill recommend them and will use in future again.
Art Yeghiazarian★★★★★ 9 months agoView on Google
These people are amazing, fixed my fan in no time. The price was affordable compared to other providers, time was under 3 hours. Sergey and his crue will take care of you. I highly recommend anyone. Thank you for the flawless work. God Bless.
Read all 142 reviews on Google Reviews and photos from Google, 4 Nov 2026.
Why it ranks #19 of 57 insulation contractors in Los Angeles
Score 69.2 / 100. Claiming this listing or using Theo never changes it. How we rank
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