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Duct cleaning & repair removes debris and fixes damaged sections to restore healthy airflow throughout your house.
We've been doing duct work since 2008, and here's the truth: most Chicago homes don't need duct cleaning. We'd rather lose the sale than scam you. Free camera inspection shows you what's actually in your ducts—no scare tactics, no upsells.
Let's start with the truth. Here's when duct cleaning companies are lying to you:
Made up by duct cleaning companies. There's no EPA, ASHRAE, or NADCA guideline that says this. It's marketing.
If you had mold issues in your ducts, you'd smell it. Real mold requires moisture problems—if you don't have condensation or leaks, you don't have mold.
Usually it's a dirty filter or outdoor allergies. Your filter catches 95% of dust before it reaches the ducts. Change it monthly ($20/year) before spending $600 on duct cleaning.
Classic bait-and-switch. They show up, "find" mold/damage/extra vents, upsell to $500-$1,000+. Legitimate NADCA cleaning can't be done for $99.
Visible Mold Growth
Inside ducts (rare, requires moisture problem)
Rodent/Insect Infestation
Droppings, nests, or dead pests in ducts
After Major Renovation
Drywall dust throughout system (6-12 months post-construction)
Excessive Dust Accumulation
1/4"+ layer visible when you look in registers
Never Cleaned, Pre-1980 Home
50+ years of dust (but inspect first)
"Honest answer: Most Chicago homes don't need duct cleaning. We'd rather lose the sale than scam you."
Bernie's follows the NADCA standard. Here's our honest process:
We run a scope camera through your ducts and show you what's actually there. No guessing, no scare tactics. If your ducts look fine, we'll tell you to save your money.
Time: 15-30 minutes | Cost: FREE
We attach a high-powered vacuum at your furnace to create negative pressure throughout the duct system. This pulls debris toward the collection unit (not into your house).
Scam companies skip this—they just blow compressed air, which stirs up dust but doesn't remove it.
We insert rotating brushes through each supply and return vent to physically dislodge debris from duct walls. This is NADCA's "source removal" requirement—the debris must be physically removed, not just stirred up.
Typical debris: Dust, pet hair, drywall dust from renovations, occasional toys/socks kids dropped in vents.
We document what we removed. You'll see the debris we collected and before/after camera shots of your ducts. Transparency builds trust.
Time required: 3-5 hours for typical Chicago bungalow
NADCA Certification: National Air Duct Cleaners Association sets the industry standard. Bernie's uses NADCA-certified equipment and processes—source removal, negative pressure, full system inspection.
Most Chicago homes need duct repair, not cleaning. Disconnected or damaged ducts waste 30-40% of your heated/cooled air.
Problem: Boot joints separate in crawlspaces/attics—room gets no airflow
Symptoms: One room always too hot/cold, weak airflow from register
Common in: Chicago bungalows with basement ducts, homes where ducts weren't properly secured
Repair cost: $150-$300 per duct
Problem: Flex duct flattened by stored items, insulation, or poor installation
Symptoms: Reduced airflow, rooms don't heat/cool properly, furnace runs constantly
Fix: Replace crushed section with proper-sized rigid or flex duct
Repair cost: $200-$400 per section
Problem: Can't balance airflow between floors—upstairs too hot in summer, downstairs cold in winter
Fix: Install manual or automatic dampers to control airflow to zones
Benefit: Even temperatures throughout house, lower energy bills
Install cost: $100-$250 per damper
Causes: Rodents, age, poor installation (sharp bends, no support)
Result: Conditioned air leaks into attic/crawlspace instead of your rooms—wastes 20-40% of heating/cooling
Fix: Replace damaged section with properly sized, insulated flex duct
Repair cost: $150-$350 per section
Common in: Pre-1980 Chicago homes with original metal ductwork
Problem: Holes leak air, reduce efficiency, pull in dusty attic/basement air
Fix: Patch small holes with mastic/mesh, replace badly rusted sections
Repair cost: $200-$500 (depends on access)
Chicago homes fact: Most ductwork runs through unfinished basements in bungalows—easy to inspect and repair. Two-flats often have shared ductwork that can spread odors between units (we can install isolation dampers).
No bait-and-switch. No "surprise fees" for "mold we found." Here's what it actually costs:
Camera Inspection:
FREE
We'll show you if cleaning is actually needed
Duct Cleaning (if needed):
$400-$800
Typical home: 1,200-2,000 sq ft, 10-15 registers
Sanitizing (optional):
$150-$250
EPA-approved antimicrobial, only if mold/odors present
What we DON'T charge: "Surprise fees" for "extra vents" or "mold we found"
Most homes need 1-3 repairs. We quote before work starts—no surprises.
Average Cost for Typical Chicago Home
$600
Duct cleaning for 1,500 sq ft bungalow with 12 registers
Chicago housing stock has specific ductwork challenges. Here's what we see:
Ducts often run through unfinished basements—easy to inspect and repair. Common issues: disconnected boot joints, crushed flex duct from storage, asbestos-wrapped trunk lines (pre-1950).
We can inspect your basement ducts during free camera inspection
Shared ductwork can spread odors between units (cooking smells, smoke). We can install isolation dampers to prevent cross-contamination while maintaining airflow.
Damper install: $100-250 per zone
Contractors often don't protect registers during drywall work—fine dust throughout system. This is one of the few times duct cleaning is actually necessary. Wait 6-12 months post-move-in for dust to settle.
Camera inspection shows if cleaning is needed
May have asbestos-wrapped ducts. DON'T disturb or clean these yourself—requires licensed abatement specialist. We can identify asbestos-wrapped ducts during inspection and refer you to specialists.
Asbestos abatement required before duct cleaning
Realistic timeline based on 15+ years of Chicago HVAC experience:
Clean 6-12 months after construction dust settles. Contractors rarely protect registers—drywall dust gets everywhere.
Cost: $400-600 typical
Maybe every 10-15 years IF you see visible dust accumulation (1/4"+ layer in registers). Most homes never need cleaning.
Free camera inspection shows if cleaning is needed
Doesn't change much. Pet hair gets trapped in your filter, not the ducts. Change filter monthly ($20/year) before spending $600 on duct cleaning.
Good filter > duct cleaning for pet allergies
Change your filter monthly ($20/year) before spending $600 on duct cleaning. Most allergies are outdoor pollen or dirty filters, not duct dust.
Try monthly filter changes for 3 months first
"We're HVAC techs, not duct cleaning salespeople. If your ducts look fine in the camera, we'll tell you to save your money."
Honest answer: Most Chicago homes don't need duct cleaning every 3-5 years like cleaning companies claim. Unless you have visible mold, rodent infestation, major renovation dust, or 1/4"+ dust accumulation in registers, you probably don't need it. We'd rather lose the sale than scam you. We offer free camera inspections—we'll show you what's actually in your ducts.
Duct cleaning costs $400-800 for a typical Chicago home (1,200-2,000 sq ft, 10-15 registers) using NADCA-certified equipment. Camera inspection is FREE. We don't do bait-and-switch $99 specials that turn into $1,000+ after they "find" problems. Transparent pricing, no surprise fees.
Probably not. Most allergies are caused by outdoor pollen or a dirty filter (costs $20 to replace monthly). Dust in ducts is minimal compared to what your filter catches. Before spending $600 on duct cleaning, try changing your filter monthly for a few months. We're HVAC techs, not duct cleaning salespeople.
Proper NADCA-certified duct cleaning takes 3-5 hours for a typical Chicago bungalow. Companies that promise "2 hours for your whole house" are cutting corners—probably just blowing compressed air without actually removing debris. Real duct cleaning requires negative pressure systems and rotary brushes at each register.
Duct cleaning removes dust and debris from inside ducts. Duct repair fixes physical damage—disconnected flex ducts, crushed sections, torn ductwork, rust holes. Honestly, duct REPAIR is more common and more useful than cleaning. Disconnected ducts waste 30-40% of your heated/cooled air.
Yes. We offer FREE camera inspections—we'll scope your ducts and show you what's actually there. If cleaning is needed, we quote it on the spot. If your ducts look fine, we'll tell you to save your money. No pressure, no bait-and-switch.
Free camera inspection. No scare tactics, no upsells. If your ducts look fine, we'll tell you to save your money. That's the Bernie's difference.
Camera inspection takes 15-30 minutes. We show you what's there before recommending anything.