For Homes
We work in occupied homes every week and keep the dust out of your living space. You get a walkthrough, photos and a written scope before anything starts.
- Musty smell upstairs
- Roof leak soaked insulation
- Inspection flagged attic mold
Attic Decontamination Littleton CO for Cleaner, Safer Air
Attic Decontamination Littleton CO clears out mold spores, rodent waste, insulation dust and musty odors that drift down into your living space. If your attic smells after a roof leak, or a home inspection flagged growth on the sheathing, we handle the full clean-out. We serve homeowners across Arapahoe County with attic sanitization in Littleton CO that targets the source, not just the smell.
Moisture readingsThermal scanPhoto report- We check firstMoisture readings before any work
- Contain the spaceSealed hatch, negative air running
- Vacuum before wetHEPA first, then treatment
- Show the photosBefore and after, every job
What Is Included in Attic Decontamination
Every decontamination job covers the core work: inspection, containment, HEPA vacuuming, antimicrobial treatment, fogging and a final walkthrough with photos. Insulation replacement, ductwork cleaning and leak repair are quoted separately because not every attic needs them. Here is what the standard scope covers.
Moisture and Thermal Inspection
We check sheathing, trusses, insulation and ductwork with a moisture meter, thermal imaging camera and boroscope. You get photos and a straight answer on what is wet, what is growing, and what needs to come out.
Containment and Negative Air
The attic hatch gets sealed and a negative air machine keeps the space under pressure so dust and spores do not migrate into your living area. Air scrubbers run for the duration of the job.
HEPA Vacuuming of All Surfaces
Trusses, sheathing, rafters, ductwork exteriors and the attic floor get vacuumed with HEPA equipment. This step removes the loose contamination that sprays and foggers alone cannot reach.
Antimicrobial Treatment and Fogging
We apply antimicrobial spray to every exposed wood surface, then fog the open space to reach truss bays and tight corners. Products are matched to the surface and the severity of growth.
Debris and Contaminated Insulation Removal
Saturated insulation, rodent nesting and loose debris go into sealed bags and out through the hatch. We tell you how much has to come out and what it will cost to replace before we start.
Photo Documentation and Walkthrough
Before-and-after photos, moisture readings and a written summary of the work. You get a record you can hand to an adjuster, a buyer or your own files.
Homes and businesses.
The approach is the same for a home and a business. What changes is the access, the schedule and who needs the paperwork.
For Properties
We handle attic and plenum spaces in multi-tenant and commercial buildings. Work is scheduled around your operating hours, with documentation for property records.
- Tenant turnover cleanup
- Insurance claim documentation
- Multi-unit attic inspection
What Attic Decontamination Littleton CO Actually Involves
A plain-language look at what Attic Decontamination involves and when it is needed.
See how it worksAttic Decontamination Littleton CO is a full-surface cleaning and treatment process that removes mold spores, settled dust, pest debris and odor-causing residue from every exposed surface in your attic. We start with a moisture meter and thermal imaging camera to find where water is getting in, then run a boroscope into tight bays to check for hidden growth. A HEPA vacuum pulls loose contamination off trusses, wood sheathing and ductwork before any wet product touches the wood. From there we apply an antimicrobial spray, fog the open space, and set an air scrubber to capture airborne particles while we work.
Most Littleton attics we open up have the same story: a roof leak or poor attic ventilation let warm, humid air sit against cold sheathing, and condensation did the rest. Fiberglass insulation soaks up that moisture and holds it, which is why insulation mold and truss mold show up together so often. If you have been searching for attic decontamination in Littleton CO near me because of a musty smell in the hallway, that smell is usually the attic talking. We also handle attic decontamination for odor removal Littleton and attic decontamination for mold removal Littleton CO as part of the same visit.
Attic decontamination removes the contamination and treats the surfaces so it does not come back.
- What it is
- A full clean-out and treatment of attic surfaces to remove mold, dust, pest debris and odors.
- When you need it
- After a roof leak, an inspection finding, or when a musty smell keeps returning upstairs.
- What to expect
- Containment setup, HEPA vacuuming, antimicrobial treatment, fogging, and a photo walkthrough at the end.
How Our Attic Decontamination Process Works
Every job follows the same five steps, whether it is a 900-square-foot ranch in Heritage or a 3,200-square-foot two-story in Ken Caryl. Here is what you can expect from the day you call.
-
Inspection and Testing
We walk the attic with a moisture meter, thermal imaging camera and boroscope, checking sheathing, trusses, ductwork and insulation. You get photos of what we find and a straight answer on what needs to come out. This takes 45 to 90 minutes.
- Moisture check
- Thermal scan
- Photo findings
-
Containment and Setup
We lay drop cloths, seal the attic hatch, and set a negative air machine so dust and spores do not migrate into the house. A HEPA vacuum and air scrubber run for the duration. Setup usually takes 30 to 45 minutes.
- Seal hatch
- Negative air
- Drop cloths
-
Debris and Insulation Removal
Contaminated insulation, rodent nesting, and loose debris go into sealed bags and out through the hatch. On a typical 1,200-square-foot attic, removal runs two to four hours depending on how much material is saturated.
- Bag debris
- Pull insulation
- Seal and haul
-
HEPA Vacuum and Antimicrobial Treatment
Every exposed surface gets vacuumed with a HEPA vacuum, then treated with an antimicrobial spray. We use products like Concrobium and Benefect, and on heavier growth we apply RMR-86 or Fiberlock. Fogging reaches into truss bays a sprayer cannot.
- HEPA vacuum
- Antimicrobial spray
- Fog the space
-
Verification and Walkthrough
We re-check moisture readings, confirm the air scrubber has cleared visible dust, and walk you through the finished space. You get before-and-after photos and a written summary of what was removed and what was treated.
- Re-check readings
- Photo walkthrough
- Written summary
Tools and Methods We Use
Move across a circle, or focus it and press Enter, for an illustrative thermal view of the photograph.
Moisture meter and hygrometer
Measure moisture content in wood and relative humidity in the attic air. These readings tell us whether the problem is active or historical before we start work.
Thermal imaging camera
Reveals temperature differences that point to hidden moisture, missing insulation or air leaks behind finished surfaces. It finds water you cannot see.
Boroscope
A camera on a flexible rod that lets us inspect inside wall cavities, truss bays and ductwork without cutting anything open.
HEPA vacuum
Captures particles down to 0.3 microns at 99.97 percent efficiency. Used on every exposed surface before any wet product is applied.
Air scrubber and negative air machine
Keeps the attic under negative pressure and filters airborne particles during the job. Prevents dust and spores from migrating into the living space.
Thermal views are illustrative, generated from the photographs.
Methods
Fogger
Applies antimicrobial product as a fine mist that reaches truss bays, corners and surfaces a sprayer cannot cover evenly.
Dri-Eaz and Phoenix Restoration equipment
Commercial-grade air movers and dehumidifiers used when the attic needs drying before treatment. We do not treat wet wood.
IICRC remediation standards
We follow the IICRC framework for containment, removal, cleaning and verification. It is the same standard insurance adjusters and home inspectors recognize, which makes your documentation easier to accept.
Containment-first workflow
Nothing gets disturbed until the attic hatch is sealed and the negative air machine is running. This protects your living space and keeps the job from spreading contamination into the house.
HEPA before wet
We always vacuum loose contamination before applying any liquid product. Spraying first just glues dust to the wood and makes the cleanup harder.
Product matching
Light surface growth gets Concrobium or Benefect. Heavier staining gets RMR-86 or Fiberlock. Matching the product to the surface protects the wood and gets a better result.
When to Schedule Attic Decontamination
Storm leak cleanup
A roof leak soaked the attic insulation over a bedroom during a spring storm.
We inspect with a moisture meter and thermal camera, remove the wet insulation under containment, HEPA vacuum the sheathing and trusses, and apply antimicrobial treatment. If the leak is still active, we coordinate with a roofer before we start.
Outcome: The attic is dry, treated and documented. New insulation goes in after the moisture source is fixed, and the ceiling stain does not come back.
Pre-closing inspection
A home inspector flagged mold on the attic sheathing two weeks before closing.
We schedule within days, document the growth with photos and moisture readings, perform the decontamination, and provide a written summary with before-and-after images. The report is formatted for lender and agent review.
Outcome: The buyer gets a clean attic with documentation, and the closing stays on schedule.
Musty smell source
The upstairs hallway smells musty every summer but there is no visible leak.
We track the source with a thermal camera and hygrometer. Most of the time it is condensation on cold sheathing from poor attic ventilation, or a bath fan ducting into the attic instead of outside. We fix the moisture path and decontaminate the affected area.
Outcome: The smell stops, and the fix addresses the cause instead of masking it for another season.
Tenant turnover
A landlord needs an attic cleaned out between tenants after a pest problem.
We remove nesting debris and droppings under containment, HEPA vacuum the surfaces, treat the wood, and fog the space. The work is scheduled around tenant turnover so the unit can be re-listed quickly.
Outcome: The unit passes inspection and the next tenant does not inherit the smell.
Asthma concern
A homeowner with asthma wants the attic checked after years of dust buildup.
We inspect, take air samples if requested, and perform full decontamination with HEPA vacuuming and antimicrobial treatment. Pre- and post-work sampling gives measurable numbers to compare.
Outcome: The attic is clean, the spore count is documented, and the household has a baseline to monitor going forward.
How Attic Decontamination Runs in Littleton
Littleton sits at the edge of the Front Range, which means big temperature swings between day and night and a lot of freeze-thaw cycling through winter. That pattern drives condensation on cold roof sheathing, especially in attics with weak ventilation. Homes built before 1980 in Historic Downtown Littleton and Columbine often have undersized soffit vents and bath fans that dump warm air straight into the attic.
Newer builds in Sterling Ranch and Ken Caryl tend to have better ventilation but still fail at plumbing boots and ridge vent details. We see the same pattern across ZIP codes 80120, 80122 and 80123. If you are searching for professional attic decontamination Littleton, Colorado, the first thing we do is figure out which failure mode your attic has, because the cleanup is different for each one.
A 1,200-square-foot ranch in Heritage takes a different approach than a 3,000-square-foot two-story in Ken Caryl Valley.
- Historic Downtown Littleton: Older homes with original framing and undersized ventilation. Chimney flashing and plumbing boots are the most common leak points we find here.
- Ken Caryl: Mix of 1980s and 1990s construction with complex roof lines. Ridge vent and bath fan ducting issues show up regularly, especially on two-story plans.
- Columbine: Ranch homes with low-slope roof sections. We see condensation mold on sheathing here more than anywhere else in the area.
- Sterling Ranch: Newer construction with tighter envelopes. When moisture gets in, it stays in, so ventilation details matter more than in older homes.
- Roxborough Park: Homes near the foothills get more wind-driven rain and snow. Roof penetrations and flashing take more abuse here than on the valley floor.
- Large day-night temperature swings: Warm daytime attic air condenses on cold sheathing overnight. Over a season, that moisture feeds mold growth on the underside of the roof deck.
Walk the attic and explain what we find Seal the hatch and set up containment Re-check readings and walk you through
From problem to finished result.
Roof Leak Cleanup in Ken Caryl
Before: A failed plumbing boot let water into a 1,400-square-foot attic for most of a spring. The insulation over the master bedroom was saturated, sheathing showed dark mold staining across three bays, and the hallway smelled musty.
After: We removed 320 square feet of wet insulation, HEPA vacuumed the sheathing and trusses, applied antimicrobial treatment, and fogged the space. Post-work moisture readings were back to baseline. New insulation went in after the boot was replaced.
Check the plumbing boots and flashing every fall before the first snow. If you see staining on the ceiling, call before the next rain.
Rodent Debris Cleanup in Downtown Littleton
Before: A 1920s home had years of rodent nesting and droppings spread across the attic floor and into the insulation. The smell was noticeable in the upstairs bedrooms, and the homeowner was concerned about air quality.
After: We contained the space, removed 14 bags of contaminated insulation and debris, HEPA vacuumed every exposed surface, treated the wood, and fogged the attic. The odor cleared within a week, and air sampling showed spore counts back in the normal range.
Seal exterior entry points and keep trees trimmed back from the roofline. A yearly attic check catches new activity early.
Condensation Mold in Columbine Ranch
Before: A low-slope roof section with poor soffit ventilation had condensation mold across the sheathing. Roughly 40 percent of the roof deck showed surface growth, and the insulation had visible moisture staining.
After: We treated 600 square feet of sheathing with antimicrobial product after HEPA vacuuming, replaced 180 square feet of saturated insulation, and added intake ventilation to fix the airflow. Follow-up inspection six months later showed no new growth.
Keep soffit vents clear of insulation and check them each spring. If humidity in the attic stays above 60 percent, add ventilation before mold returns.
Attic Problems We Solve in Littleton
Attic contamination in Littleton almost always traces back to one of a few causes: water getting in, air not moving, or pests moving through. Here is what we see most often and how we handle it.
- Musty odorMusty odor drifting into bedroomsThe smell gets worse in summer and can trigger headaches, allergies and complaints from family members. It also signals active mold growth somewhere in the attic. We locate the growth with a thermal camera and moisture meter, remove the contaminated material, treat the wood, and fog the space. Attic decontamination for odor removal Littleton jobs typically clear the smell in one visit.
- Sheathing moldMold on roof sheathing and trussesSurface mold weakens nothing structurally at first, but it spreads along the grain and into adjacent bays. Left alone, it can reach the point where sheathing needs replacement. We HEPA vacuum the affected surfaces, apply antimicrobial treatment, and address the ventilation or leak issue that caused the condensation. Trusses get cleaned and treated rather than removed.
- Wet insulationSaturated insulation after a roof leakWet fiberglass and cellulose lose R-value and hold moisture against the ceiling drywall. That moisture feeds mold and can stain ceilings inside the house. We bag and remove the saturated sections under containment, decontaminate the exposed surfaces, and install new insulation once the attic is dry and treated.
- Rodent debrisRodent droppings and nesting debrisDroppings carry pathogens, and nesting material holds moisture and odor. The smell can travel through the HVAC system into every room. We remove the debris under containment, HEPA vacuum the surfaces, and treat the wood with antimicrobial products. We also point out the entry points so you can seal them after the cleanup.
- Ductwork moldMold inside attic ductworkEvery time the HVAC system runs, it pulls attic air into the living space. Ductwork with mold growth on it spreads spores through the whole house. We clean and treat duct exteriors and accessible interiors as part of the decontamination scope, and we check the duct connections for gaps that let attic air leak in.
Why Littleton Homeowners Book Attic Decontamination
A clean attic that stays clean because the source was fixed.
Cleaner Air Downstairs
Air scrubbers running at 500 to 2,000 CFM pull airborne spores out of the attic while we work. Homeowners with allergies or asthma often notice the difference within a few days, especially in bedrooms directly under the attic.
Odors Gone at the Source
Musty odors, rodent urine and dead-animal smell do not come out with a fan and a candle. We remove the contaminated material, treat the wood, then fog the space. Attic decontamination for odor removal Littleton jobs usually clear the smell in one visit.
Stops Mold From Spreading
Mold on wood sheathing and trusses spreads along the grain and into adjacent bays.
Protects Insulation Value
Wet fiberglass and cellulose insulation lose R-value fast and hold moisture against the ceiling drywall. We test with a hygrometer, pull saturated batts, and tell you exactly which sections need replacement versus which can stay.
What a written scope covers.
What a written scope covers and what shapes it. Prices are set by the business after the first look.
Included
- Full attic moisture and thermal inspection
- Containment with negative air machine
- HEPA vacuuming of exposed surfaces
- Antimicrobial spray and fogging
- Debris and insulation removal
- Photo documentation and written summary
Depends on
- Attic square footage and access
- How much insulation is saturated
- Severity of mold growth
- Whether ductwork needs cleaning
- Whether the leak is still active
- Attic height and working space
What you receive
Clear records you can keep and share.
Photo report
Before and after images of treated areas
Moisture log
Readings taken before and after work
Written scope
What was removed and what was treated
Job summary
One-page record for your files
Surface growth versus saturated materials
Not everything in a contaminated attic can be cleaned. Some materials have to come out.
Surface growth
Mold on wood that has not penetrated
- Clean and treat
- Wood stays in place
- Verify with readings
Saturated materials
Insulation and drywall that held water
- Remove and bag
- Replace after drying
- Fix the source first
Hidden moisture
Water behind surfaces or in cavities
- Find with thermal
- Check with boroscope
- Dry before treating
Surfaces and materials we work with
- Wood sheathing
- Trusses
- Fiberglass insulation
- Cellulose insulation
- Ductwork
- Ventilation fans
- Drywall
- Framing
Service ZIP codes.
A list like this tells people straight away whether you cover their street. Not listed? Call and ask: it only takes a minute.
- 80128
- 80122
- 80123
- 80120
- 80160
- 80165
- 80166
Towns we serve.
Based in Littleton and covering the places around it. Pick one for local details.
- Downtown Littleton
- Historic Downtown Littleton
- Sterne Park
- Ketring Park
- Heritage
- Southbridge
- Meadowbrook
- SouthPark
- Littleton Village
- Littleton Commons
- TrailMark
- Coventry
What Littleton Homeowners Say
Attic Decontamination Questions Littleton Homeowners Ask
A small attic with light surface mold and no insulation removal sits at the low end. Full insulation replacement plus ductwork cleaning pushes toward the top. We give you a written scope before any work starts.
Every job includes a moisture and thermal inspection, containment setup with a negative air machine, HEPA vacuuming of all exposed surfaces, antimicrobial treatment, fogging, and a final walkthrough with photos. Insulation removal and replacement, ductwork cleaning and leak repair are quoted separately because not every attic needs them. We tell you which ones apply to yours after the inspection.
A typical 1,000 to 1,500 square foot attic takes one day, usually six to nine hours on site. Larger attics, heavy insulation removal, or ductwork cleaning can push it to two days. If we are also replacing insulation, add three to four hours. We schedule the work so your household is not disrupted more than it needs to be.
Yes. Removing visible mold without decontaminating the surrounding surfaces leaves spores behind in dust, on truss faces and inside insulation. Those spores re-colonize the moment humidity climbs again. Decontamination is the step that clears the residue, treats the wood, and gives you a clean surface to rebuild on. Skipping it is the most common reason mold comes back within a year.
Related Attic Services in Littleton
Other services from the same team.
- Attic Odor RemovalThat musty smell is mold off-gassing. We remove the source, HEPA vacuum every surface, then fog with an odor-neutralizing agent. Most homeowners notice the difference within a day of the final treatment.
- Attic SanitizationAfter remediation we sanitize sheathing, trusses and ductwork with an EPA-registered antimicrobial. This is the step that gives you a clean surface ready for new insulation. We document the product used for your records.
- Attic Air Quality TestingWe pull air samples before and after remediation to confirm spore counts dropped. This is useful for allergy or asthma concerns and for real estate closings. Lab results come back in two to three business days.
Book Attic Decontamination Littleton CO Today
If your attic smells musty, showed up on an inspection report, or sat through a roof leak, get it handled before the problem spreads. Call (720) 953-3834 and we will schedule an inspection, walk the space with you, and give you a written scope.
Contact PeakShield Attic Solutions
Call (720) 953-3834 or email us and we will schedule an attic inspection, usually within a day or two. We work Monday through Friday, 8am to 6pm, and we answer the phone ourselves. If you have a leak or storm damage, tell us and we will prioritize the call.