How much does a Fire & Smoke Damper Inspection cost to buy?

A typical Fire & Smoke Damper Inspection sells for 2.2x to 5.5x seller's discretionary earnings. With estimated SDE of $224K, expect to pay roughly $493K to $1.2M before adjustments for assets, debt, growth, and local market quality.

How much does it cost to start a Fire & Smoke Damper Inspection?

Startup costs range from $45K to $240K depending on location, equipment, and scale.

Service

Fire & Smoke Damper Inspection

Hidden HVAC doors turn into mandated compliance revenue

Bottom line

Worth studying, but do not buy without strong local proof.

Fire and smoke damper inspection companies test, document, repair, and re-test the dampers buried inside commercial HVAC systems. NFPA 80 and NFPA 105 create a recurring inspection cycle: initial testing after installation, then periodic testing every four years in most buildings and every six years in hospitals.

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Acquisition score

Margin · multiple · SBA data

58Strong

Avg revenue

$700K/yr

$180K–$2.2M range

Profit margin

32%

~$224K SDE

Multiple

2.2–5.5×

of SDE

Est. buy price

$493K–$1.2M

startup: $45K–$240K

How It Works

Technicians locate dampers above ceilings and inside ductwork, access panels, test closure, document deficiencies, replace fusible links or actuators, and provide compliance reports for facility managers, hospitals, schools, high-rises, and inspectors. Revenue comes from scheduled inspection cycles, deficiency repairs, and re-testing.

BizBite verdict

Watch / verify

Fire & Smoke Damper Inspection 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.

58Strong

low data confidence · 40/100medium financing fit

Why it may work

+Attractive 32% estimated margin profile

Be careful

!Source link status has not been verified yet
!No last-checked date yet
!No SBA category enrichment yet
!No category operating model yet
!Low data confidence

Deal Calculator

Priced off $224K SDE — can this deal service its own debt?

1.91×

DSCR · Lender-comfortable

Purchase multiple — 3.6× SDE ($805K)

Category range: 2.2×–5.5× SDE

Down payment — 10% ($81K)

SBA minimum equity injection is 10% for change-of-ownership

Interest rate — 10.50%

Typical SBA 7(a) range: 9.5–12% (prime-based)

Loan term — 10 years

Standard SBA 7(a): 10 years for business acquisition

Purchase price

$805K

3.6× of $224K SDE

Cash to close

$105K

$81K down + ~3% closing

Debt service

$10K/mo

$117K/yr on $725K loan

Cash-on-cash

102%

cash back in ~12 mo

Debt service coverage · what the lender sees

1.91×+$9K/mo after debt

Most SBA lenders want ≥1.25× coverage; 1.5×+ is a strong file.

SDE = revenue × margin estimate for this niche; it includes owner compensation, so budget your salary out of cash flow. Excludes working-capital injection, capex reserves, and taxes. Actual SBA terms vary by lender and borrower.

Pros

+Code-driven recurring demand
+Hospitals, schools, and high-rises can have hundreds of dampers
+Documentation creates sticky customer relationships
+Pairs well with fire protection and HVAC service accounts

Cons

-Access can be awkward and labor intensive
-Credentials, documentation, and liability matter
-Sales cycles can involve facilities, compliance, and fire marshals

Best For

Operators with fire protection, HVAC, facilities, or life-safety compliance experience

Operating Costs

Costs include trained technicians, lifts and ladders, inspection software, access-panel tools, insurance, vehicles, and replacement parts. Margin improves when large facilities are mapped once and placed on recurring inspection schedules.