¢
BIZBITE

Air Duct Cleaning Service

The EPA says your indoor air is 5x dirtier than outdoors — you get paid to fix that

Bottom line

Accessible entry point; validate local supply before buying.

Air duct cleaning businesses clean the HVAC ductwork in residential homes and commercial buildings using industrial vacuums and brushes. The EPA estimates indoor air can be 2–5x more polluted than outdoor air, and HVAC ducts accumulate years of dust, mold, pet dander, and debris. A single technician with a van and commercial equipment can generate $200K–$500K/year in revenue with margins of 30–40%. Commercial clients — hospitals, schools, property managers — provide repeat annual contracts.

67
Acquisition score
Strong

Avg Revenue

$300K

Profit Margin

35%

Acquisition Multiple

2x - 3x

Startup Cost

$10K - $35K

How It Works

Technicians use truck-mounted or portable negative-air machines, rotary brushes, and compressed air whips to dislodge and vacuum debris from supply and return ducts. Residential jobs take 3–5 hours and run $300–$800. Commercial jobs (offices, hospitals, schools) run $1,500–$10,000+. Most operators build recurring commercial accounts that pay every 1–3 years per NADCA standards.

Revenue Range

Low End
$150K
Typical
$300K
High End
$700K

BizBite underwriting snapshot

Watch / verify

Air Duct Cleaning Service has enough high-level data for a first look, but BizBite has not assigned a category-specific operating model yet. Treat the score as preliminary.

46
Speculative / 100
Data confidence
medium
52/100
Financing fit
medium

Category-level fit before lender-specific diligence.

Confidence cap
78

Weak source data caps the final score.

Why it may work

  • +Attractive 35% estimated margin profile
  • +SBA dataset shows 67 recent comparable loans

Be careful

  • !Source link status has not been verified yet
  • !No last-checked date yet
  • !No category operating model yet
  • !No category model yet

Real Acquisitions in This Category

SBA 7(a) change-of-ownership loans · NAICS 561790 · Other Services to Buildings and Dwellings

Deals tracked
182
67 in last 24 mo
Median loan
$448K
$245K–$978K p25/p75
Implied deal size
$527K
median · ~85% LTV
Charge-off rate
not enough resolved loans

Deal Size Distribution

<$150K
23
$150K–500K
75
$500K–1M
40
$1M–2M
36
>$2M
8

Deal Flow Over Time

12-month momentum
-13.9%
deal volume vs prior 12 mo
Median loan Δ
-51.7%
31 recent · 36 prior

Financing Profile

Median rate
9.75%
9% fixed · last 24 mo
Median term
120 mo
standard 10-yr
Collateralized
0%
of loans secured
Median jobs
7
supported per deal
Top lenders in this space
Live Oak Banking Company23
The Huntington National Bank13
Customers Bank7
Stearns Bank National Association6
Columbia Bank5
Where deals happen
FL23
TX21
CA17
AZ11
OH9
CO8
WA6
IL6
KS5
MA5
Franchise vs independent
Franchised acquisitions finance at $350K median vs $471K for independents — a -26% franchise discount. Franchises make up 20% of deals tracked.

Recent Comparable Deals

ClosedStateLoanImplied deal
Mar 2026TX$350K$412K
Mar 2026NJ$1.2M$1.4M
Feb 2026LA$402K$473K
Feb 2026FL$55K$65K
Feb 2026FL$615K$723K
Feb 2026FL$50K$59K
Jan 2026TX$270K$318K
Jan 2026KS$171K$201K
Jan 2026FL$650K$765K
Jan 2026KS$211K$248K
Volume rank #44/544Deal-size rank #438/544Momentum rank #222p90 loan: $1.6MData as of Mar 2026

Source: SBA 7(a) FOIA dataset, filtered to acquisitions (loans where business age is "Change of Ownership"). Implied deal size assumes an 85% loan-to-purchase ratio, a common SBA change-of-ownership structure. Charge-off rate shown only when 10+ loans have resolved (paid in full or charged off). Interest rates reflect last 24 months only. Actual deal values vary with equity injections, seller financing, and working capital terms.

Pros

  • +Very low startup cost — van + equipment for under $30K
  • +Commercial contracts provide predictable recurring revenue
  • +EPA indoor air quality awareness is driving demand growth
  • +Owner-operator can clear $150K–$200K working solo with one helper

Cons

  • -Residential customers only call every 3–5 years, limiting repeat frequency
  • -Physically demanding — crawling in attics and tight spaces
  • -Industry plagued by scammers, so trust and reviews matter enormously

Best For

Owner-operators who want a low-barrier route business with a growing commercial client base

Operating Costs

Primary costs: van payment/fuel, equipment maintenance, NADCA certification (~$500/year), insurance, and marketing. COGS per job is very low — mostly labor. Margins improve significantly once commercial recurring contracts are established.

SBA Financing Estimator

Adjust the deal — see if it cash flows after debt service

+$3K/mo
after debt service
Deal price — $530K
Range: $450K (2×) to $1.2M (3×+)
Down payment — 15% ($80K)
SBA minimum equity injection is 10% for change-of-ownership
Interest rate — 9.75%
SBA median for this category: 9.8%
Loan term — 10 years (120 mo)
SBA median for this category: 120 months
Down payment
$80K
15% equity injection
Loan amount
$451K
85% SBA-financed
Monthly payment
$6K/mo
$256K total interest
Monthly profit
$9K/mo
at 35% margin
Monthly cash flow after debt service
+$3K/mo
Down payment paid back in ~28 months — strong return

Estimates only. Excludes owner compensation, capex, working capital draws, and taxes. Margin assumes average occupancy and volume. Actual SBA terms vary by lender and borrower profile.

Where to Buy

BizBuySell

Search air duct and HVAC cleaning businesses for sale across the US

NADCA

National Air Duct Cleaners Association — industry standards, certification, and contractor directory

BizQuest

Find air duct cleaning and specialty cleaning acquisitions

67/100Strong

Acquisition Score

Profit margin
23/30
Entry multiple
25/25
Market depth
9/20
Risk (charge-off)
8/15
Deal momentum
2/10

Scores margin (30), entry multiple (25), SBA market depth (20), category risk (15), and deal momentum (10). Higher = better acquisition candidate.

Quick Facts

Category
route
Difficulty
2/5
Buy price
$600K$900K

Get the full breakdown in your inbox

Weekly boring business breakdowns

One boring business. Real numbers. Every week. Free.

Buy a air duct cleaning service
via BizBuySell
See listings →