SBA lenders approved 183 7(a) loans to water and sewer line contractors from October 2023 to June 2026: $102,045,100 from 78 lenders. The median loan was $200,000, above the national $150,300, at a median rate of 10.5% against the national 10.25%. SBA Express made up 46.4% of loans. Acquisitions were rare, 7.7% of loans against 10.4% nationally, but large, at a median of $1,575,000. Lenders underwrite the work-in-progress schedule, the equipment fleet and the contractor's surety relationship together.
| Measure | Water and Sewer Line and Related Structures Construction | All industries |
|---|---|---|
| SBA 7(a) loans approved | 183 | 162,355 |
| Median loan | $200,000 | $150,300 |
| Middle half of loans | $66,750 – $492,500 | $50,000 – $500,000 |
| Loans of $1 million or more | 14.2% | 12.9% |
| Median rate at approval | 10.5% | 10.25% |
| Middle half of rates | 9.5% – 11.5% | 9.3% – 11.25% |
| Acquisitions (change of ownership) | 14 (7.7%) | 16,849 (10.4%) |
| Median acquisition loan | $1,575,000 | $693,000 |
| Lenders that made these loans | 78 | 1,648 |
| SBA 504 loans (real estate, equipment) | 14 | 16,714 |
Approvals FY2024 – FY2026 to date (1 Oct 2023 – 30 Jun 2026), cancelled loans excluded. Source: SBA 7(a) and 504 FOIA loan records, as of June 30, 2026.
- SBA 7(a) loans approved
- 183 (Oct 2023 – Jun 2026), from 78 lenders
- Median loan
- $200,000 (national $150,300)
- Median rate at approval
- 10.5% (national 10.25%)
- SBA Express
- 46.4% of loans
- Acquisitions
- 14 loans (7.7%), median $1,575,000 at 10%
- Loans of $1 million or more
- 26 (14.2%)
Heavy civil work at small-business scale
NAICS 237110 covers contractors that build water mains, sanitary and storm sewers, service connections, lift and pump stations, and treatment plant piping. Their customers are municipalities, water and sewer districts, land developers and general contractors. The work is equipment-heavy, done in open trenches under traffic, and paid for on progress billings that a public owner approves on its own schedule. Start-ups were only 6.6% of loans: few people start a utility contractor from nothing, because the equipment and the bonding take years to assemble.
| Figure | Water and sewer line construction | National |
|---|---|---|
| Median loan | $200,000 | $150,300 |
| Middle half of loans | $66,750 to $492,500 | |
| 90th percentile | $1,637,400 | |
| Loans of $1 million or more | 26 (14.2%) | |
| Median rate | 10.5% (middle half 9.5% to 11.5%) | 10.25% |
| Fixed-rate share | 15.8% | |
| Acquisitions | 14 loans (7.7%), median $1,575,000 at 10% | 10.4% of loans |
| Start-ups | 6.6% of loans | |
| SBA Express | 46.4% of loans | |
| SBA 504 | 14 loans, median $646,500 |
Nearly half the loans, 46.4%, were SBA Express, which goes up to $500,000 with a 50% guaranty. For a contractor that usually means a working capital line or a single machine, arranged with a lighter process. At the other end, 26 loans were $1 million or more; those finance fleets, yards and acquisitions. The 14 SBA 504 loans, at a median of $646,500, mostly finance contractors buying their own yard and shop; see SBA 7(a) versus 504.
The WIP schedule is the credit file
A contractor's P&L tells a lender what happened last year. The work-in-progress schedule tells it what is happening now: whether jobs are holding the margin they were bid at, and whether the company has billed ahead of its work or behind it. A WIP produced monthly and tied to the financial statements carries more weight than one assembled for the application.
| WIP column | What the lender reads from it |
|---|---|
| Contract value, with approved change orders | The size of the backlog and how much of it is signed |
| Estimated total cost | The margin the job was bid at, and whether estimates keep being revised upward |
| Cost to date and percent complete | How far along each job is, measured by cost, not by opinion |
| Billed to date | Cash the contractor has asked for so far |
| Over-billings | Cash collected ahead of the work; a liability, owed back in work |
| Under-billings | Work done but not yet billed; an asset lenders discount, because it can mean a disputed or losing job |
| Retainage receivable | Money the owner holds back until completion or acceptance, often for months |
A worked example in plain numbers: a job with a contract value of 1,000 and estimated cost of 800 has spent 400, so it is half complete and has earned 500. If the contractor has billed 600, it is over-billed by 100: it holds cash that belongs to work not yet done. A company that is over-billed across its jobs looks flush on its bank statements while carrying an obligation to finish the work without being paid again. Lenders adjust working capital for it.
Retainage is real money, but it is paid on the owner's timetable. Lenders count it as a slow receivable, not as cash.
Bonding and the bank are underwritten together
Public water and sewer work requires performance and payment bonds, and a contractor's bonding capacity sets how much work it can bid. Sureties underwrite much as lenders do, on working capital, net worth and the WIP, and they take a personal indemnity from the owners, often including spouses. That makes the bank loan and the bond program one conversation. A term loan whose current portion shrinks working capital, or a line fully drawn at year-end, can cut bonding capacity, and a contractor that loses bonding loses the ability to replace its backlog.
- Structure the debt around the bond. Longer amortization on equipment debt keeps the current portion small. SBA equipment financing runs up to 10 years, or 15 if useful life supports it.
- Fund the job gap with a line, not the term loan. Payroll and materials go out weekly while a municipality pays monthly after approval. SBA's contract and working capital lines, and conventional contract financing, are built for that timing. See SBA CAPLines, contract financing and lines for government contractors.
- Show the surety letter. Lenders read the surety's single-job and aggregate limits as a signal of how a specialist underwriter sees the company.
The fleet as collateral
Excavators, loaders, trenchers, directional drilling rigs, vacuum excavators, dump trucks, trench boxes and shoring: a utility contractor's equipment is usually its largest asset and its main collateral. Lenders value it at orderly liquidation value, not replacement cost or book value, and commonly want an appraisal on larger loans. See OLV and FMV appraisals. Much of the fleet is often already financed machine by machine, with purchase-money liens; an SBA loan that refinances those notes has to lower the payment by at least 10% and the debt must have been current for the last 12 months. See refinancing equipment loans and equipment financing versus SBA 7(a).
In colder regions trenching slows or stops in winter while equipment payments continue, so lenders look at monthly cash through the off-season. Some contractors fill that gap with merchant cash advances; SBA will not refinance an active advance, and from 1 October 2026 an advance becomes eligible only once converted to a term loan that has amortized for at least 24 months with no new advance since. See refinancing cash advances for contractors.
Buying a utility contractor
Only 14 loans, 7.7% of the total, financed a purchase, but their median, $1,575,000, was nearly eight times the industry median, at a median rate of 10%. The equipment shapes the deal. SBA's independent business valuation is triggered where the amount financed, less appraised real estate and equipment, exceeds $250,000, so appraised equipment is subtracted before that test, and in an equipment-heavy purchase it puts hard value under much of the price. What remains is goodwill, which rests on the backlog, the bonding and the people. See the SBA valuation requirement and financing an excavation company acquisition.
- The bonding does not come with the company. The surety underwrites the new owner, including a new personal indemnity. A buyer without a surety commitment cannot bid the next job.
- Prequalification and relationships. Municipal prequalification, relationships with district engineers, and the estimator and superintendents who price and run the work all need to survive the sale.
- The seller's role. The seller may consult for up to 12 months, or up to 24 months under SOP 50 10 8.1 from 1 October 2026, but may not stay as an owner, officer or employee.
- Coverage and diligence. From 1 October 2026 a change of ownership must show 1.25x on historical results; financial due diligence is required on every change of ownership, and a quality of earnings report on acquisitions of $3 million or more excluding real estate. SBA 7(a) loans go up to $5 million; larger deals need other structures. See financing above the SBA limit.
- Equity. At least 10% of total project costs; a seller note counts toward up to half only on full standby for the life of the loan, and SBA prohibits an earnout.
Preparing a utility contractor's SBA file
SBA's list applies: business tax returns for 2–3 years, a P&L and balance sheet with a year-to-date P&L through last month-end, a debt schedule with copies of notes being refinanced, and personal tax returns and a personal financial statement for each owner of 20% or more. A contractor's file also needs:
- A current WIP schedule that ties to the balance sheet, and the schedule at the last two year-ends
- Year-end statements prepared on the percentage-of-completion method, reviewed where the surety requires it
- An accounts receivable aging with retainage shown separately, by owner
- An equipment list with year, hours, estimated value and the lender on each piece
- The surety's bonding letter, with single-job and aggregate limits
- Backlog: signed contracts not yet started, with the owner and expected start date
- For a purchase: the letter of intent and the company's latest full year of figures, never an older year
Related industries: site preparation contractors, highway, street and bridge construction, power and communication line construction and other heavy and civil construction. Once the documents are in, Transparent builds the full lender package in a day; on SBA loans the lender pays Transparent, not the borrower.
Common questions
- What is a typical SBA loan for a water and sewer contractor?
- The median 7(a) loan in this industry from October 2023 to June 2026 was $200,000, with the middle half between $66,750 and $492,500, at a median rate of 10.5%. 26 loans were $1 million or more.
- Will an SBA loan affect my bonding capacity?
- It can. Sureties look at working capital and net worth, so the current portion of a term loan and a drawn line both matter. Structuring equipment debt over a longer term and keeping job funding on a line helps protect capacity.
- Why do lenders ask for a WIP schedule?
- Because it shows whether jobs are holding their bid margins and whether the company has billed ahead of or behind its work. Over-billings are a liability, and under-billings can signal a losing or disputed job.
- Can I buy a utility contractor with an SBA loan?
- Yes, though few buyers do: 14 loans financed a purchase, at a median of $1,575,000. An appraised fleet puts hard value under part of the price, but the buyer still needs its own surety commitment to keep bidding.