Los Angeles homeowners face a unique set of attic challenges that most of the country never deals with. Wildfire season sends smoke particulates into attic spaces through ridge vents and soffit openings, leaving behind residue that degrades insulation and air quality. The city's iconic Spanish tile roofs create ventilation gaps that invite roof rats and squirrels. Earthquake retrofitting work often disturbs existing insulation, and the warm Southern California climate makes proper attic insulation critical for keeping energy bills manageable — an under-insulated attic in LA can add hundreds of dollars per year to cooling costs alone. Whether you're dealing with rodent contamination, post-fire smoke damage, or simply aging insulation that's past its useful life, hiring the right company matters. There are 37 attic cleaning companies in Los Angeles with an average rating of 4.8 stars.
How We Chose These Companies
Every company on this list meets a strict set of criteria. We evaluated Los Angeles attic cleaning companies based on verified Google review ratings, total review volume, breadth of services offered, and demonstrated expertise in attic-specific work. All five hold a 5.0-star rating, but we weighted review count heavily — a perfect score backed by over a hundred reviews carries far more significance than one backed by a handful. We also prioritized companies that offer multiple attic services rather than a single specialty, since LA attics frequently need a combination of insulation removal, pest remediation, and restoration work performed together.
The Top 5
1. The Attic Insulation Specialists, Inc
10940 Wilshire Blvd, Los Angeles, CA 90024
“This attic guys are the best insulation company I have ever dealt with . I highly recommend them to every body who needs attic cleaning services and insulation supplies . Looking forward to work with them again .”
— Boghrat Sadeghan
The Attic Insulation Specialists earn the top spot with a commanding 136 reviews at a perfect 5.0 rating — the largest verified review count of any attic cleaning company in the Los Angeles market. What sets them apart is the breadth of their service offering: insulation removal, mold remediation, and full attic restoration under one roof. That combination matters in LA, where a rodent infestation often leads to contaminated insulation that then develops mold in the warm, poorly ventilated space. Rather than coordinating multiple contractors, homeowners can get the entire scope handled by a single experienced crew. Their specialization in attic work — not general contracting, not handyman services — means they've seen every variation of LA attic problem and built their process around solving them efficiently.
2. Next Level Insulation of Los Angeles
3397 Barham Blvd, Los Angeles, CA 90068, United States
“Next Level Insulation of Los Angeles provided an outstanding experience from start to finish. The team was professional, knowledgeable, and took the time to explain the entire insulation process clearly. They worked efficiently and paid close attention to detail. Since the installation was completed, our home feels significantly more comfortable and maintains a consistent indoor temperature.”
— Fletcher Miley
Next Level Insulation has built a strong reputation across the LA metro with 34 five-star reviews and a focus on insulation removal and replacement. Their name reflects their approach — they treat insulation work not as a commodity service but as an energy performance upgrade. For Los Angeles homeowners dealing with sky-high summer cooling bills, that mindset translates to real savings. The company is particularly well-suited for straightforward insulation projects where the existing material has degraded from age, heat exposure, or minor pest activity and needs a clean removal and upgrade to current California Title 24 energy code standards. Their focused specialization means you're getting a crew that does insulation work day in and day out, not a company that dabbles in it alongside other trades.
3. Atlas Insulation Los Angeles County
3023 Leeward Ave, Los Angeles, CA 90005, United States
“Great customer service! Easy to work with.”
— jay Muleka
Atlas Insulation covers the full Los Angeles County footprint, making them a strong choice for homeowners in outlying areas like the San Fernando Valley, San Gabriel Valley, and South Bay who want a company with deep local knowledge. With 31 five-star reviews, they've earned consistent praise for responsive communication and thorough insulation removal work. Los Angeles County spans an enormous geographic area with varied microclimates — attics in Pasadena bake under direct sun while those in coastal Santa Monica deal with more moisture — and Atlas has experience adapting their approach to these different conditions. If you're outside the central LA basin but still want a top-rated insulation specialist, Atlas is worth contacting.
LA Attic Anatomy: Climate-Specific Considerations
4. Attic Wizard
“The attic insulation in our home had been in place for decades and was no longer effective. Attic Wizard came in, removed the old material, and replaced it with high R-value spray foam. The difference in temperature throughout the upper rooms is noticeable. Their crew finished the project in just a few days and made sure the entire roofline was properly sealed.”
— Emmett Carrington
Attic Wizard may have the smallest review count on this list at 18, but every single one is a five-star rating, and the company name alone signals what they're about — attic work, exclusively. That laser focus on attic spaces means they understand the nuances that general insulation contractors often miss: how LA's older homes (many built in the 1940s through 1970s) have attic configurations that require careful navigation, how vermiculite insulation in pre-1990 homes may contain asbestos, and how California's fire hardening requirements are changing what materials should go into an attic. For homeowners who want a true specialist rather than a large operation, Attic Wizard delivers the kind of attentive, detail-oriented service that comes with a focused company.
5. Building Doctors
5042 Wilshire Blvd #268, Los Angeles, CA 90036, United States
“They are absolutely the best contractors I have dealt with in over 30 years as a homeowner. Their proposal was accurate and complete. Their work is excellent quality and was done on time. When there were problems due to unexpected issues (as there always are), they came up with great solutions and were always fair and reasonable. After they upgraded the insulation and replaced the HVAC in my house, my utility costs have been cut by over 60% and my home is significantly more comfortable to live in. I've gone from a 3 zone system (with two 3 1/2 ton units) thet always had hot and cold zones to a 1 zone system with one 3 1/2 ton unit. It's always the same temperature throughout the house for all seasons and I almost never have to think about adjusting them temperature because it now "just works". I wish I had done this 20 years ago. Since the initial remodel I've used Building Doctors multiple times on smaller jobs and they've always done top rate work at a fair price. I highly recommend them!”
— Rich Sondheimer
Building Doctors rounds out this list with a diagnostic approach to attic work that lives up to their name. Offering both insulation removal and full attic restoration, they treat the attic as a system rather than an isolated space — examining how ventilation, insulation, air sealing, and ductwork interact before recommending a scope of work. That systems-thinking approach is particularly valuable in Los Angeles, where ductwork running through a 150-degree attic can account for 20-30% of a home's total energy loss. With 14 five-star reviews and a service model built around thorough assessment, Building Doctors is an excellent choice for homeowners who want a comprehensive evaluation before committing to a project. They're especially well-suited for older LA homes where multiple attic issues have compounded over decades.
What to Look For in a Los Angeles Attic Cleaning Company
Choosing an attic cleaning company in LA requires attention to a few region-specific factors beyond the basics covered in our guide on choosing an attic cleaning company.
California contractor licensing is non-negotiable. Insulation work in California requires a C-2 (Insulation and Acoustical) license or a B (General Building) license. Ask for the license number and verify it through the Contractors State License Board.
Wildfire and smoke damage experience matters more here than almost anywhere else in the country. If your home has been affected by nearby fire activity, you need a company that understands how to assess and remediate smoke particulate contamination in attic insulation. For more on this topic, read our guide to California attic fire safety.
Pest exclusion knowledge is essential. LA's roof rat population is aggressive, and any insulation removal job should include an assessment of entry points and exclusion recommendations. A company that removes contaminated insulation without sealing entry points is setting you up for a repeat problem within months.
Title 24 compliance should be standard. California's energy code mandates specific R-values for attic insulation based on your climate zone. Your contractor should know your zone (most of LA is Climate Zone 8 or 9) and install insulation that meets or exceeds the requirement.
Typical Costs in the Los Angeles Market
LA attic cleaning prices run 15-25% above the national average due to higher labor costs, stricter regulatory requirements, and the prevalence of multi-issue attics. For a detailed breakdown of what each service involves, see our attic cleaning cost guide.
| Service Type | LA Cost Range | What's Included |
|---|---|---|
| Basic attic cleanout | $250–$750 | Debris removal, light dust cleanup, no insulation work |
| Insulation removal only | $1,200–$3,000 | Industrial vacuum removal of blown-in or batt insulation, disposal |
| Insulation removal + replacement | $1,800–$5,500 | Full removal, air sealing, new insulation to Title 24 R-value standards |
| Rodent cleanup and restoration | $1,800–$6,000 | Contaminated insulation removal, sanitization, exclusion work, re-insulation |
| Mold remediation | $1,800–$7,500+ | Containment, mold removal, antimicrobial treatment, source correction |
| Comprehensive attic restoration | $3,500–$10,000+ | Combined services — removal, pest remediation, sanitization, air sealing, new insulation |
Most LA homeowners spend between $2,000 and $5,000 for a full insulation removal and replacement project. Projects involving rodent contamination or mold typically run $3,500 to $7,000 depending on severity and attic size.
Frequently Asked Questions
Do LA attic cleaning companies handle wildfire smoke damage?
Yes, several companies on this list — particularly The Attic Insulation Specialists and Building Doctors — have experience with smoke-damaged attics. Wildfire smoke carries fine particulates that embed in insulation fibers, and these particles continue to off-gas into the living space for months or years after a fire event. Remediation typically involves complete insulation removal, HEPA vacuuming of all attic surfaces, antimicrobial treatment, and installation of new insulation. If your home was in a fire zone or you notice a persistent smoky smell, schedule an attic inspection. Insurance may cover the remediation if you can document the fire exposure.
How do earthquakes affect attic insulation?
Seismic activity can shift and settle blown-in insulation, creating thin spots and gaps that reduce thermal performance. More significantly, earthquake retrofitting work — bracing cripple walls, bolting the foundation, adding shear panels — often requires disturbing attic insulation to access framing members. After any retrofit project, have your attic insulation assessed to ensure it still meets the required R-value. Insulation that has been walked through, compressed, or moved aside during structural work may need to be removed and replaced to restore its thermal performance. The shaking itself can also open new gaps around penetrations that were previously sealed, creating air leaks that undermine even intact insulation.
What pests are most common in LA attics?
Roof rats are the most prevalent attic pest in the Los Angeles area by a wide margin. They enter through gaps as small as a quarter, travel along power lines and tree branches to reach rooflines, and nest in the warm insulation. Their droppings and urine contaminate insulation and create health hazards including leptospirosis and hantavirus exposure risks. Beyond rats, LA homeowners also encounter squirrels (particularly in neighborhoods with mature trees), raccoons (which can cause severe structural damage), and various bird species that nest in soffit and ridge vent openings. Any attic cleaning project in LA should include a thorough inspection for pest activity and a plan for exclusion to prevent re-entry.
Find a Top-Rated Attic Cleaning Company in Los Angeles
All five companies on this list have earned perfect ratings from their customers, and each brings a different strength to the table — from The Attic Insulation Specialists' comprehensive multi-service approach to Attic Wizard's focused specialization. The right choice depends on your specific situation, budget, and the scope of work your attic needs. Get estimates from at least two or three companies before committing, and don't hesitate to ask the questions outlined in our choosing an attic cleaning company guide.
