What should an HVAC or plumbing company's employee handbook include?

The trade-specific half of the book has to come from your own operations, not from an office template.

If your techs drive company trucks, carry shop tools, take callbacks or work inside customers' homes, the policies that govern each of those are yours to define.

The handbook is where those habits stop being habits and become rules applied the same way to every tech.

• Company vehicles. Who may drive, personal use, fuel, tickets, and accident reporting — even a one-paragraph summary beats silence. When the trucks go home with techs, keep the full signed agreement as its own document: our take home vehicle policy template covers eligibility, personal-use tax treatment, GPS and the accident sequence.
• Tools. What the shop supplies, what the tech supplies, the replacement process for lost or broken tools, and how a tool allowance is paid. The payroll limits on charging techs for tools are their own subject — they are covered in our tool allowance guide.
• On-call. The rotation, who answers the phone, the response window you promise customers, and how on-call time is paid. How on-call time is paid — the structure options and the FLSA rules — is covered in our on-call pay policy guide.
• Phones. Personal phone use on job sites, who answers the shop line, and photos: if you file before-and-after pictures, say so in the policy, and set a rule for anything else a tech might photograph inside a customer's home and for what happens to the pictures afterward.
• PPE and safety gear. What the shop provides, what the tech keeps up, where spares live on the truck, and who to tell when gear goes missing. Write this section from how your trucks and jobs actually run; the OSHA side — which hazards require training, and the injury records you keep — is in our OSHA guide for HVAC and plumbing contractors.
• Drug and alcohol policy. Whether you test, on which occasions, and what happens after a result. Pre-employment, random and post-accident testing — plus where states limit marijuana testing — are covered in our drug testing policy for contractors; if your screening also includes a background check, the consent and adverse-action steps that process requires are in our background check guide.
• Uniforms. Who buys them, who launders them, the replacement schedule, and what the truck-and-uniform combination looks like when a tech knocks on a customer's door — the uniform is your brand in the driveway.

The vehicle agreement and any tool chargeback are the two policies to pull out as their own signed documents rather than summary paragraphs.

Keep the handbook as the umbrella — one page per policy, a table of contents, and cross-references to the standalone agreements where the detail lives.

Start with the pieces that have named federal rules, because those land at hire.

The IRS asks employers to get a signed Form W-4 from each new employee when they start work, effective with the first wage payment.

Separately, federal law requires employers to report new and rehired employees to the state within 20 days of hire — and some states require sooner — so confirm your own state's deadline with its new-hire reporting agency rather than assuming the federal one.

Beyond hire reporting, the state-law areas our research flagged but did not cover state by state are: final-paycheck deadlines, paid-sick-leave laws, pay-transparency posting rules, written commission-agreement rules and wage-deduction limits.

Those rules were not researched state by state, so this page names no states and no deadlines — a generic template that prints another state's numbers may be wrong for yours.

Get the current requirements from your state labor agency, and have an employment attorney review every legal statement in the handbook before you hand it out.

One state rule our research did confirm concerns the at-will statement a handbook may open with.

Montana is the exception to at-will employment: after an employer's probationary period, discharge without good cause is wrongful under the state's Wrongful Discharge from Employment Act.

During the probationary period, either side may end employment for any reason or none.

If you operate in Montana, have the employment-status language reviewed against that statute; anywhere else, have your attorney confirm the at-will wording your state actually recognizes before it goes in the book.

Don't just hand the techs a finished PDF.

Walk the shop through the book — in one meeting or a section at a time — and have the service manager cover the policies that touch daily behavior: vehicles, phones, on-call.

Give techs the chance to ask questions before they sign.

The acknowledgment page records that the tech received the stated version, and it works best when that is true.

Use a dated acknowledgment page, and get one signed by every current tech, not just new hires — a short statement that the tech received the stated version of the handbook, with signature and date lines for the tech and the owner or service manager.

File the signed pages with payroll records.

When a policy changes later, hand out that section, collect a fresh signature, and keep the superseded page on file; the paper trail of which version was in force is the point of the exercise.

New hires get the book on day one as part of onboarding — the full first-day and first-90-days sequence is in our guide to onboarding new techs.

For the crew you already have, set an annual review in a slow month and read the book against how the shop actually operates: every policy that no longer matches reality gets revised and re-signed, and a policy the shop has quietly stopped following gets cut rather than left on the page.

A handbook is one page of the operator's job.

The rest, from finding candidates to keeping the techs you trained, is in our guide to hiring HVAC and plumbing techs.

This page is employer career and business information, not legal advice. The W-4 guidance summarized here is published by the IRS, the new-hire reporting requirement as published by the federal Administration for Children and Families, and the Montana rule by the Montana Wrongful Discharge from Employment Act. Confirm what applies to your company with those agencies and your state labor agency, and have an employment attorney review your handbook before you hand it out.