Trusted Attic Cleaning & Rodent Proofing for Newport Beach Homeowners
Attic Cleaning & Rodent Proofing in Costa Mesa and nearby areas like Newport Beach typically costs $1,800-$4,500 for a complete service, and most jobs are completed in one to two days. We remove contaminated insulation, sanitize the space, seal all entry points, and restore your attic to a clean, efficient condition. Call (657) 261-8265 for a free written estimate with same-day scheduling available throughout Newport Beach, Corona del Mar, and the Balboa Peninsula.
We’ve been serving Newport Beach homeowners since 2016, and we’ve cleaned and restored attics in everything from 1950s ranch homes in Westcliff to newer builds in Newport Coast with our Attic Cleaning & Rodent Proofing - Newport Beach service. The coastal climate here creates specific problems: marine layer moisture settles into attic insulation, and the mature tree canopy in neighborhoods like Lido Isle and Dover Shores provides easy highway access for roof rats and squirrels. We’ve completed over 9,000 home envelope projects, and every one started with a written price and ended with a documented photo record. Our technicians are background-checked, uniformed, and arrive with a named appointment, not a four-hour window.
What Our Attic Cleaning & Rodent Proofing Service Includes
Attic Cleanout
Attic cleanout is the removal of all contaminated, compressed, or degraded insulation, debris, and organic matter from your attic floor and cavity spaces. In Newport Beach, we regularly find that original fiberglass batts from 1970s and 1980s builds have settled to half their labeled R-value, creating a layer that traps dust and rodent waste rather than insulating. We remove everything by hand and with commercial HEPA vacuums, bag it for proper disposal, and leave the attic structure exposed for inspection. A typical cleanout in a 2,000-square-foot Newport Beach home takes four to six hours and produces six to ten contractor bags of material.

Attic Sanitizing & Decontamination
Attic sanitizing and decontamination eliminates the biological hazards left behind by rodents, including hantavirus, leptospira, and salmonella bacteria that can become airborne when disturbed. We apply an EPA-registered enzymatic treatment to all surfaces, followed by a botanical disinfectant that breaks down organic matter without leaving a chemical residue that would compromise new insulation performance. In Newport Beach’s humid coastal environment, we pay particular attention to roof sheathing and top plates where moisture can linger and support mold growth after rodent activity. The sanitizing step is never optional in our process; we won’t install new insulation over a contaminated substrate.

Rodent Proofing & Exclusion
Rodent proofing and exclusion is the systematic sealing of every entry point larger than one-quarter inch, the width a young rat needs to access your attic. We inspect from the foundation to the ridge vent, using galvanized steel mesh, concrete patching, and specialized sealants for different penetration types; in Newport Beach, common entry points include deteriorated fascia boards in ocean-adjacent homes, gaps where palm fronds meet rooflines, and uncapped plumbing vents. Our exclusion work carries a one-year warranty because we document every sealed point with a photo in your job record. We don’t use expandable foam for rodent exclusion; rodents chew through it in weeks.

Attic Restoration
Attic restoration returns your attic to a thermally effective, code-compliant condition after cleanout and exclusion are complete. We install new insulation to the appropriate R-value for Orange County’s climate zone, typically R-38 to R-49 for attics, using materials from Owens Corning, Johns Manville, or GreenFiber depending on your home’s specific needs and your preference. Before any insulation goes in, we complete air sealing of top plates, can lights, and all penetrations; we never blow insulation over an unsealed attic floor. On applicable jobs, we provide before-and-after blower-door numbers so you can verify the air-sealing result in a single figure.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Attic Cleaning & Rodent Proofing

We work with the full range of insulation and building envelope products installed in Newport Beach homes, with particular depth of experience in CertainTeed fiberglass systems and Icynene open-cell spray foam. We’ve removed and replaced hundreds of CertainTeed batts and blown systems in local homes built between 1985 and 2010, and we stock compatible materials to match existing assemblies without thermal bridging. Our crews are trained in the specific handling requirements of Icynene spray foam, including the ventilation protocols needed for safe re-occupancy after installation in enclosed attic spaces.
We also regularly encounter Demilec closed-cell foam in newer Newport Coast and Pelican Hill area homes, where builders specified it for both insulation and structural rigidity in complex rooflines. Whether your attic contains CertainTeed, Icynene, Demilec, or any other make, we can assess its condition, remove it if contaminated, and specify the right replacement material for your home’s envelope performance. We don’t push proprietary products; we source from multiple manufacturers so the specification matches the need.
Before
AfterSigns You Need Attic Cleaning & Rodent Proofing Right Now
- Nocturnal scratching or scurrying sounds above ceiling drywall. Roof rats are most active between 10 PM and 4 AM, and their movement in attic spaces creates distinct scratching patterns different from thermal expansion pops. If you’re hearing consistent movement in Newport Beach’s older neighborhoods like Eastbluff or Harbor View Hills, you likely have active rodent traffic that will accelerate insulation contamination.
- Visible droppings or urine staining in attic access areas. Rodent droppings are dark, elongated pellets roughly the size of a grain of rice, and they accumulate along travel paths that rats reuse nightly. Fresh droppings are soft and dark; older ones gray and crumble; finding either means the attic environment is biologically active and unsafe for unprotected contact.
- Uneven temperatures between rooms or rising HVAC costs without explanation. When insulation becomes compressed, displaced by nesting, or saturated with urine, its thermal resistance drops measurably. We’ve measured attics in Newport Beach where contaminated insulation performed at less than 30% of its labeled R-value, forcing the HVAC system to compensate with longer run times.
- Damp or musty odors entering living spaces through recessed lighting or vents. Rodent urine contains ammonia compounds that volatilize in warm attic air and migrate downward through pressure differentials. In coastal Newport Beach, where ambient humidity already runs high, this moisture load can trigger mold amplification on attic sheathing within a single season.
- Daylight visible through roof penetrations from inside the attic. Every point of daylight is a potential entry point for rodents, and also represents conditioned air loss that you’re paying to generate. We document these penetrations during our initial inspection with photos you’ll receive in your job record.
Our Attic Cleaning & Rodent Proofing Process - Step by Step

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Written estimate and attic inspection. We arrive at the scheduled time, inspect the attic with full PPE including respirators, and document conditions with photos. You’ll receive a flat written price before any work starts, with a scope that specifies exactly what will be removed, what will be sealed, and what materials will be installed. This is Haven Standard Clause 1: no work begins without a written price.
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Containment and removal of contaminated materials. We seal the attic access and HVAC returns with plastic sheeting, then remove all insulation, debris, and rodent waste using HEPA vacuums and manual collection. Material is double-bagged and removed from your property same-day; nothing sits in your garage or driveway overnight.
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Structural sanitizing and decontamination. All exposed wood, ductwork, and electrical penetrations receive enzymatic treatment followed by botanical disinfectant application. We allow proper dwell time for the chemistry to work, then verify with ATP surface testing in sensitive areas.
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Rodent exclusion and air sealing. Using galvanized steel mesh, concrete, and specialized sealants, we close every entry point from the exterior and complete air sealing of all interior penetrations. This is where we differ from companies that clean attics but don’t seal the building envelope; without exclusion, rodents return, and without air sealing, you’re paying to heat and cool your attic.
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Restoration with documented completion. New insulation is installed to specified R-value, and we provide your Documented Photo Record showing before, during, and after conditions. On applicable jobs, before-and-after blower-door readings demonstrate the air-sealing result. The 365-Day Done Right Promise applies to all work.
How Much Does Attic Cleaning & Rodent Proofing Cost in Newport Beach?
A typical Attic Cleaning & Rodent Proofing pricing in Newport Beach runs $1,800-$4,500 depending on attic square footage, contamination level, and whether restoration with new insulation is included. Here’s how that breaks down for common scenarios:
- Attic cleanout only (no insulation replacement): $1,800-$2,800 for attics up to 1,500 square feet with moderate contamination
- Cleanout + sanitizing + rodent exclusion: $2,800-$3,800, the most common scope for active infestations
- Complete restoration including new insulation to R-38/R-49: $3,500-$4,500+, depending on material selection and air-sealing complexity
Several factors move the price within these ranges. Attic accessibility matters: homes with scuttle holes instead of pull-down stairs require more labor for material removal. The age of the home affects what we find; pre-1980 Newport Beach construction often contains vermiculite insulation that requires specialized abatement protocols. The extent of rodent damage to ductwork, wiring, or structural members can add repair scope we can’t fully assess until cleanout exposes the structure.
To avoid overpaying, get any competing estimate in writing and bring it to us for a Free Second Opinion. We’ll read it with you line by line and identify what’s actually included. Our estimates are flat prices, not open-ended time-and-materials arrangements. Everything is specified before anyone lifts a tool.
Attic Cleaning & Rodent Proofing Near Newport Beach - Our Service Area

We serve Newport Beach with typical response times of 30-45 minutes for initial inspections, and we regularly complete jobs in Corona del Mar, Balboa Island, Newport Coast, and the Port Streets. Our service radius extends to Attic Cleaning & Rodent Proofing in Costa Mesa, Attic Cleaning & Rodent Proofing in Laguna Beach, Fountain Valley, Irvine, Laguna Woods, Aliso Viejo, Huntington Beach, Santa Ana, Tustin, Laguna Hills, and Laguna Niguel. Whether you’re in a 1960s tract home off MacArthur Boulevard or a custom build in Crystal Cove, we arrive with the same documentation standards and the same written-price-first protocol.
Serving Newport Beach, CA - Our Local Coverage Area
We’re based in the Newport Beach area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Attic Cleaning & Rodent Proofing in Newport Beach

Fountain Valley Attic Cleaning & Rodent Proofing is a four-phase service that removes contaminated insulation and waste, sanitizes the attic structure, seals all rodent entry points, and restores thermal performance with new insulation. In Newport Beach’s coastal climate, this service also addresses moisture accumulation that accelerates contamination. Most homeowners need this service after detecting rodents, noticing HVAC inefficiency, or during a home sale inspection that reveals attic deficiencies.
Most complete projects take one to two days, with cleanout and sanitizing completed on day one and exclusion plus insulation restoration on day two. Larger homes in Newport Coast or those with complex rooflines may extend to three days. We don’t rush the sanitizing dwell time; it’s critical for safe re-occupancy. Call (657) 261-8265 for scheduling - we can often start within 48 hours.
Complete service typically runs $1,800-$4,500 depending on attic size, contamination level, and whether new insulation is included. Cleanout-only projects start around $1,800, while full restoration with R-38 or R-49 insulation can reach $4,500 for larger homes. We provide a flat written price before any work starts, and our Free Second Opinion ensures you’re not overpaying for scope you don’t need.
Yes. We regularly remove and replace CertainTeed fiberglass, Icynene open-cell spray foam, and Demilec closed-cell foam in Newport Beach homes. Our crews understand the handling requirements and re-occupancy protocols for each material type. Whether your attic contains these brands or any other make, we can assess, remove if needed, and specify appropriate replacement.
Yes. Calls are answered by a live person 24/7, and we prioritize active infestations where rodents are currently accessing living spaces or where contamination poses immediate health concerns. Same-day inspection is often available, and we can begin containment and exclusion immediately upon written approval. For emergencies, call (657) 261-8265 anytime.
Our rodent exclusion carries a one-year warranty backed by the 365-Day Done Right Promise. If rodents re-enter through any point we sealed, we return and re-seal at no charge. The warranty is documented in your written scope before work begins, not promised verbally after the fact. This is Haven Standard: Have it in writing.
Clear a path to the attic access and remove any stored items you want to keep from the attic floor; we’ll handle everything else. Ensure pets are secured away from work areas, and plan to be out of the home for two to four hours during the sanitizing phase if you have respiratory sensitivities. We bring all equipment, containment materials, and disposal containers; you don’t need to provide anything.
Schedule Your Attic Cleaning & Rodent Proofing Service in Newport Beach Today
Call (657) 261-8265 now for a free written estimate on attic cleaning and rodent proofing in Newport Beach. A live person answers 24/7, and we’ll schedule your inspection with a named technician who arrives on time, documents everything, and leaves you with a flat price before any work starts. Under the Haven Standard, every job ends with a Documented Photo Record and the 365-Day Done Right Promise. No voicemail loops, no callback windows, no surprises.
Written by Wes Okafor, Owner at Topside Attic Insulation Newport Beach, serving Newport Beach since 2016.