A credential check is a set of dated findings, not one permanent “verified” badge. Match the installer’s identity to official license records, ask the insurer or agent about the actual coverage, and confirm the manufacturer role for the proposed equipment. The FTC recommends checking contractor licenses with state or county government and requesting proof of insurance.[1]
This is the operational walkthrough. If you first need to establish which trades and permissions belong on the list, read What Licences Should a Generator Installer Have?. For choosing between qualified proposals, return to the installer-selection checklist.
Before you start: collect the identity and scope
Ask the candidate for the following in writing:
- Legal business name on the proposed contract, trading name if different, business address and relevant license numbers.
- Names of the electrical and fuel contractors, including subcontractors, and the responsible license holders where applicable.
- Proposed generator and transfer-switch model numbers, fuel, and whether the generator is air-cooled or liquid-cooled.
- Insurance certificate or other current evidence, identifying the issuing insurer and agent.
- The exact manufacturer relationship claimed: seller, authorized installer, startup provider, maintenance provider or authorized warranty-service provider.
- Who applies for permits, who corrects inspection issues, and the intended work dates.
Keep the documents privately with your quote file. Do not post policy numbers, signatures or personal contact details in a public review or directory. This guide does not verify any named provider or confirm anyone’s insurance.
Step 1: identify the correct licensing authority
Ask the building department serving the project address which licenses or registrations apply to the electrical, fuel and other construction work. Then open the issuing authority’s official website, rather than relying on a link or screenshot supplied as the only evidence. The FTC directs consumers to state or county government for license confirmation.[1]
Useful first-party starting points include:
| Coverage checked for this guide | Official entry point | How to use it |
|---|---|---|
| Texas electrical licensing | TDLR electricians | Follow Search Licenses; check the electrical contractor business and relevant individual credential.[2] |
| Florida electrical contractor/business relationship | DBPR electrical business verification instructions | Follow Verify a License; search the business and the qualifying individual.[4] |
| California contractor status and classification | CSLB Check a License | Search by contractor number or business/personnel name and open the detail record.[3] |
These are selected electrical/contractor lookup paths, not complete generator licensing research for all states or fuel trades. Use the local authority to identify missing regulators and address-specific requirements.
Step 2: search the number and match the legal entity
Enter the license identifier as supplied, following the authority’s format instructions. If it does not fit the published format, ask the contractor to clarify it; do not quietly change digits or remove letters until a record appears. For example, CSLB says a California contractor number contains no alphabetic characters, while its home-improvement salesperson registration uses a different format.[3]
Open the full result rather than stopping at a search-result list. Compare the legal business, trading name, business address, license holder and associated company against the proposed contract. If needed, search by business or individual name as a separate cross-check and preserve the original number in your notes.
Florida’s instructions make the relationship check explicit: after finding the business, repeat the search for the individual contractor to ensure that person properly qualifies the entity.[4] A person with a valid credential is not automatically evidence for every similarly named business.
If the names differ: ask for the explanation and supporting official record. A trading name, reorganization or branch arrangement may need clarification. A mismatch is an unresolved finding, not proof of fraud. Do not change the contract or record names in your notes to make them appear identical.
Step 3: check status, expiry and scope separately
Record these fields from each applicable detail page:
- Status: copy the authority’s exact wording. Do not translate “inactive,” “pending” or another restricted status into “licensed for this job.” Ask the authority what an unclear status permits.
- Expiry or renewal date: copy it if displayed. If absent, record “not shown” and ask how to establish currency. Check again if the work will begin after renewal is due.
- Classification and scope: compare the category with the actual electrical, fuel or construction task. Ask the authority about limitations, supervision and location restrictions you cannot interpret.
- Business relationship: identify the contracting entity and any required qualifying individual, not only a worker’s name.
- Disclosures: read any public disciplinary or complaint-disclosure information provided. CSLB expressly includes complaint disclosure in its lookup.[3] Save the wording and ask about its relevance; do not infer a clean history merely because a field is empty.
Repeat this for the electrical and fuel subcontractors. TDLR, for example, says non-exempt electrical work must be performed by licensed people through a licensed electrical contractor, making the business check material as well as the individual check.[2]
A permit number belongs in a separate project record. Ask the local office to confirm that it concerns the correct address and scope when a permit has been issued. A license check is not an inspection result.
Step 4: follow up on insurance with the issuer
Start with current proof of insurance, as the FTC recommends.[1] Then use this practical follow-up process; it is a homeowner due-diligence procedure, not a promise that a policy covers every loss.
- Read the document. Note the named insured, insurer, policy period, coverage types, limits and any listed operations. Compare the insured entity with the business on your contract. Request evidence for subcontractors rather than assuming the lead company’s document answers for them.
- Find an independent contact route. Locate the insurer’s or issuing agency’s official website and public business contact details. Use that route to reach the relevant department or agent; do not rely solely on the number printed on a forwarded certificate.
- Ask the contractor to authorize the inquiry if necessary. The insurer or agent may need its customer’s permission before discussing details. A privacy-related refusal is not evidence that coverage is absent. Mark the check unresolved until the appropriate evidence arrives.
- Describe the job precisely. Give the issuer the contracting entity, generator installation scope, fuel piping or trenching involved, subcontractor arrangement and planned dates. Ask it to confirm the evidence it issued and explain whether the described operations are covered, subject to which exclusions, limits or conditions.
- Separate coverage questions. Ask about general liability and the workers’ compensation coverage or applicable exemption relevant to the work. Have the state authority or your own insurance adviser explain local requirements and the consequences of an exemption. Do not assume all states require the same policy package or minimum limits.
- Save the response and its limits. Request current evidence directly from the issuer where available. Record who responded in your private file, when, what was actually confirmed, and what remains unanswered. Recheck if the policy renews before work starts or the job changes.
A certificate should not be treated as the policy itself or a guarantee of a future claim payment. Texas’s insurance regulator explains that a certificate cannot alter, amend or extend policy coverage and that a certificate holder may ask the agent about specific policy language or exclusions.[8] That is Texas guidance; ask the relevant regulator or your adviser about rules elsewhere.
If additional-insured status is part of your agreement, ask the insurer or agent to explain the applicable policy endorsement. Do not assume that being named as certificate holder grants that status. Texas guidance expressly limits what the certificate-holder box can confer beyond the policy or endorsement.[8] Do not ask an agent to certify blanket “coverage for everything”; request the actual terms and a clear explanation.
Step 5: verify the exact manufacturer role and equipment coverage
Search the manufacturer’s official dealer or service locator for the business and branch. Choose the correct product category: a portable-generator or battery relationship is not evidence for home-standby service. Generac’s locator, for example, separates product categories and offers distinct sales and service filters.[5]
Next, ask the manufacturer through its public support channel to resolve any ambiguity in the claimed role. Preserve the wording of the result: “authorized installer” and “authorized service dealer” are different findings. Generac’s documentation distinguishes installation, sales and warranty-service roles, and says air-cooled and liquid-cooled service require separate specialized training and certification.[10]
Use this request with the proposed provider, and ask the manufacturer to clarify its own authorization records where needed:
Please identify the current manufacturer role held by this business/branch and the person who will perform startup or service. Does that role cover my exact generator model and transfer equipment, its air-cooled or liquid-cooled product family, installation/startup, routine maintenance, and warranty diagnosis or claims? Which of those services will you actually provide at my address?
Then separate authorization from availability. Ask the service business to confirm its service area, supported model, working hours, travel charges and any written response commitment. A locator result alone does not establish that it will accept your job or provide emergency service.
For Generac, its IASD document says warranty repairs and claims go through authorized service dealers.[10] Do not generalize that program to another manufacturer or claim that every non-dealer installation automatically voids a warranty. Obtain the current warranty statement and installation instructions for the exact product, then have the manufacturer explain any disputed eligibility condition. Keep manufacturer warranty coverage separate from the installer’s workmanship warranty.
Step 6: use a dated, blank verification record
Copy this record once per business and repeat the trade rows for subcontractors. All fields below are intentionally blank. Nothing in this template asserts that a license, policy or certification has been confirmed. The date to enter is the date you performed the check, not this article’s source-review date.
| Record field | Your entry |
|---|---|
| Check date and time, including time zone | ____________________ |
| Project address/reference and planned work dates — keep private | ____________________ |
| Contracting legal entity and trading name | ____________________ |
| Electrical business / fuel business / other subcontractor | ____________________ |
| Issuing authority and official record URL | ____________________ |
| Original license number and exact matching record | ____________________ |
| Qualifying individual and business relationship | ____________________ |
| Status copied exactly; expiry/renewal date or not shown | ____________________ |
| Classification, geographical limits and confirmed task scope | ____________________ |
| Public disclosures and authority clarification | ____________________ |
| Insured legal entity and document date — keep policy identifiers private | ____________________ |
| Independently located insurer/agency contact route | ____________________ |
| Issuer response date and coverage terms actually explained | ____________________ |
| Policy period, exclusions/limits and subcontractor questions | ____________________ |
| Workers’ compensation evidence or exemption clarification | ____________________ |
| Manufacturer, model, cooling type and transfer equipment | ____________________ |
| Official locator/support source and exact authorization role | ____________________ |
| Model coverage, startup and warranty-service scope | ____________________ |
| Provider’s written service-area and availability response | ____________________ |
| Remaining questions and evidence still needed | ____________________ |
| Next check date and reason | ____________________ |
| Decision: proceed to quote comparison / pause for clarification | ____________________ |
In your notes, distinguish document received, official record checked, issuer response received, and unresolved. Avoid a single “pass” that conceals unanswered fields. This record is for your own decision-making, not a government certificate or an insurance coverage determination.
When to pause the hiring decision
Pause if a required license cannot be matched, the authority cannot confirm that its scope fits the task, insurance questions remain material and unanswered, or the promised manufacturer role cannot be established. Ask for clarification rather than making a public accusation. If the business, subcontractor, equipment or timing changes, repeat the affected checks before relying on the earlier findings.
You can discover candidates in the generator provider directory, but listings are unverified: Backup Generator Guide has not independently confirmed their licensing, insurance, manufacturer authorization or ability to serve your address. Once your checks are complete, use the installer-selection parent guide to compare scope, support and written proposals—not just badges.
Sources
- 1: FTC — Avoiding home-improvement scams
- 2: Texas TDLR — Electricians
- 3: California CSLB — Check a licence
- 4: Florida DBPR — Electrical contractor business information
- 5: Generac — Dealer locator
- 8: Texas Department of Insurance — Certificates FAQ
- 10: Generac — Independent Authorised Service Dealer role