A line of credit is a standing limit. Money comes out in draws as bills arrive, interest accrues on the amount out, and each paydown reopens room under the limit. A partner sets the limit, any fees and the renewal date.
At a glance
- Plumbing, heating and AC contractors, Robertson County, TN
26 employer establishments (County Business Patterns 2023, NAICS 238220)
- Annual payroll of those contractors, Robertson County, TN
$9.2 million (County Business Patterns 2023)
- Plumbing and HVAC businesses without paid employees, Robertson County, TN
62 (Nonemployer Statistics 2024, NAICS 23822)
Business lines of credit in Robertson County, TN, followed through one general liability premium and its paydown
A yearly liability premium is a single large bill that comes due on a known date. Paying it from a line spreads the cost over the following months without taking out a new loan.
| Month | Balance drawn | Interest for the month |
|---|---|---|
| Month 1 | $14,200.00 | $149.10 |
| Month 2 | $10,650.00 | $111.83 |
| Month 3 | $7,100.00 | $74.55 |
| Month 4 | $3,550.00 | $37.28 |
Across the four months, the invented premium draw costs $372.76 in interest. Once the last $3,550.00 is paid, the full limit is open again for the next large bill.
Commercial line of credit draws for nursery stock at a Springfield, TN landscaping company
A commercial line of credit works the same way at a larger scale: one limit, many draws, each paid down when its job pays. A landscaping company can draw for shrubs and trees ordered for a contracted planting and clear the draw when the client pays.
Illustration only, invented figures: a $5,750 draw for nursery stock, cleared after 21 days at 12.6%, costs about $41.68 in interest on a 365-day year.
The partner sets the limit and may review it at renewal. A line that stays fully drawn for months behaves more like a term loan and may be priced like one.
When a line of credit is worth it, and when it is not: crew payroll at a Springfield, TN HVAC contractor
A line earns its keep when draws are short and repeated. It can cost more than it saves when it sits unused with a yearly fee, or when a draw stays out for a year.
Illustration only, invented figures: an HVAC contractor draws $9,100 twice to cover two payrolls, each cleared after 20 days at 12.6%. The two draws cost $125.66 in interest; with a $400 yearly line fee, the year costs $525.66. A six-month working capital loan of $18,200 at 13.5% for the same payrolls carries $723.28 of interest, or $197.62 more than the line.
If the contractor drew nothing all year, the fee would be the whole cost. The test is how often the line gets used.
Asking to increase a line of credit after a Springfield, TN contractor signs larger commercial contracts
A limit set for residential service calls can be too small once a contractor starts bidding commercial work with larger materials orders. A request to increase a line of credit is reviewed much like the first one.
- Recent bank statements showing draws paid down on time.
- The signed commercial contracts and their payment terms.
- Current revenue against the revenue at the original review.
- Loans or leases added after the line was first set.
Possible answers include a higher limit, the same limit, or a different product altogether. Nothing about an increase is automatic.
Business line of credit lenders, and the route a Springfield, TN plumbing contractor’s request takes to them
The money does not come from Swiftpine Loans. A plumbing or HVAC contractor calls (615) 694-4278 or sends the short request, the details come up on the call, and the request goes to funding partners. Each partner reviews it on its own terms and may ask for bank statements, tax returns and a list of current debts.
Plumbing, heating and air-conditioning contractors in Robertson County, TN numbered 26 employer establishments in 2023, with 162 employees, and 16 of the 26 had fewer than five people (County Business Patterns, NAICS 238220). Separately, the county counted 62 such businesses with no paid employees in 2024 (Nonemployer Statistics). Plumbing and HVAC contractors have a note on the industries page, next to builders and landscaping companies.
Builder line of credit: a Springfield, TN home builder’s lumber and truss packages, house by house
A builder line lets a home builder pay for each contracted house’s materials as the job reaches that stage and pay the draw down when the client’s payment for that stage arrives. Construction loans for the houses themselves are outside this site; the line here covers the builder’s own materials and subcontractor deposits.
| House | Draw | Days out | Interest |
|---|---|---|---|
| House 1 | $21,400 | 33 | $220.57 |
| House 2 | $18,900 | 41 | $242.02 |
| House 3 | $24,600 | 29 | $222.82 |
Interest on all three houses’ draws comes to $685.41. Permits issued in Robertson County, TN during 2025 authorized 823 new privately owned housing units (Building Permits Survey).
The business loans page sets the line beside the five other funding types, and the working capital page covers a one-time gap instead. Blog posts take draws further: three overlapping flooring jobs on one line, fittings and valves drawn ahead of booked plumbing jobs, a builder’s lumber draws kept apart from a telehandler loan, a repair shop’s battery and brake order paid down in halves and when a coffee bar might use a line draw instead of a card-sales advance.
By Swiftpine Loans · Updated


