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BIZBITE

Dock Door Repair

Warehouse downtime is expensive, so busted bays get fixed fast

Bottom line

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

Dock door repair businesses service sectional doors, levelers, seals, restraints, bumpers, dock lights, and related loading-bay equipment for warehouses, food plants, cold storage, and logistics facilities. The surprising angle is that one damaged bay can bottleneck an entire facility, which makes this a speed-driven B2B niche with strong repeat work once you know a site's equipment.

53
Acquisition score
Strong

Avg Revenue

$480K

Profit Margin

25%

Acquisition Multiple

2.3x - 3.6x

Startup Cost

$35K - $200K

How It Works

Technicians inspect and repair dock doors, motors, springs, levelers, seals, and safety accessories, then sell preventive maintenance agreements and equipment upgrades. Revenue comes from emergency repair, PM contracts, replacement installs, and multi-site agreements with industrial landlords, distributors, and 3PLs.

Revenue Range

Low End
$160K
Typical
$480K
High End
$1.3M

Real Acquisitions in This Category

SBA 7(a) change-of-ownership loans · NAICS 811310 · Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance

Deals tracked
142
59 in last 24 mo
Median loan
$779K
$250K–$1.6M p25/p75
Implied deal size
$916K
median · ~85% LTV
Charge-off rate
not enough resolved loans

Deal Size Distribution

<$150K
18
$150K–500K
33
$500K–1M
35
$1M–2M
33
>$2M
23

Deal Flow Over Time

12-month momentum
-31.4%
deal volume vs prior 12 mo
Median loan Δ
+64.4%
24 recent · 35 prior

Financing Profile

Median rate
9.50%
22% fixed · last 24 mo
Median term
120 mo
standard 10-yr
Collateralized
0%
of loans secured
Median jobs
10
supported per deal
Top lenders in this space
Live Oak Banking Company18
The Huntington National Bank15
First Internet Bank of Indiana5
First National Bank of Pennsylvania5
Beacon Bank and Trust5
Where deals happen
TX20
CA13
PA8
CO8
FL7
MI7
IL6
OH6
OR5
MO5

Recent Comparable Deals

ClosedStateLoanImplied deal
Mar 2026NY$3.3M$3.8M
Mar 2026FL$2.8M$3.2M
Feb 2026WA$900K$1.1M
Feb 2026AZ$1.4M$1.7M
Feb 2026TX$1.2M$1.4M
Feb 2026TX$250K$294K
Jan 2026TX$200K$235K
Jan 2026NY$500K$588K
Jan 2026TX$1.3M$1.5M
Jan 2026MD$965K$1.1M
Volume rank #54/544Deal-size rank #229/544Momentum rank #275p90 loan: $2.4MData 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

  • +Urgent downtime supports premium service pricing
  • +Recurring maintenance is easy to attach after the first repair
  • +Sticky customer relationships once equipment history is known
  • +Strong adjacency to commercial doors and facility maintenance

Cons

  • -Technicians need mechanical skill and good safety discipline
  • -Parts inventory and callbacks can hurt sloppy operators
  • -Industrial sales cycles are relationship-driven

Best For

Industrial service operators who want repeat B2B work tied to warehouses, food distribution, and logistics facilities

Operating Costs

Major costs include service trucks, springs and hardware inventory, leveler parts, labor, insurance, lift equipment, and fuel. Margins improve with preventive maintenance contracts and geographically dense industrial accounts.

SBA Financing Estimator

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

$-119/mo
after debt service
Deal price — $920K
Range: $860K (2.3×) to $2.2M (3.6×+)
Down payment — 15% ($138K)
SBA minimum equity injection is 10% for change-of-ownership
Interest rate — 9.50%
SBA median for this category: 9.5%
Loan term — 10 years (120 mo)
SBA median for this category: 120 months
Down payment
$138K
15% equity injection
Loan amount
$782K
85% SBA-financed
Monthly payment
$10K/mo
$432K total interest
Monthly profit
$10K/mo
at 25% margin
Monthly cash flow after debt service
$-119/mo
Margin does not cover debt service at these terms. Lower the deal price, increase the down payment, or extend the loan term.

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

MHI

Material handling industry association covering the warehouse and loading-dock ecosystem

Vortex Doors – Loading Dock Equipment

Example operator page illustrating the breadth of dock-door and loading-bay service work

BizBuySell – Building and Construction Services

Marketplace category where commercial door and industrial repair operators are often listed

53/100Strong

Acquisition Score

Profit margin
17/30
Entry multiple
21/25
Market depth
8/20
Risk (charge-off)
8/15
Deal momentum
0/10

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

Quick Facts

Category
service
Difficulty
3/5
Buy price
$1.1M$1.7M

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