Guides

How Much to Charge for a Service Call: Trip Charges and Diagnostic Fees for HVAC and Plumbing

Typical trip charge and diagnostic fee ranges, a five-minute way to set your own, whether to credit it toward the repair, and how to say the fee on the phone.

Ijharul Islam October 18, 2026 7 min read

Most residential HVAC companies charge a diagnostic fee of about $70 to $200, with $89 a common number, and many plumbers charge a $75 to $100 trip charge or none at all. Set yours from your own cost to put a truck at the door (labor, vehicle, overhead for about an hour), then decide whether the fee is credited toward the repair if the customer goes ahead.

More on this topic: Pricing, estimates and getting paid, every guide in one place.

A service call fee is the first price a customer hears, usually on the phone, before anyone has seen the problem. Get it wrong in one direction and you drive across town for free; get it wrong in the other and callers hang up and ring the next company on the list. This guide covers the three names for the fee, typical 2026 ranges, how to work out your own number, and the words that keep callers on the line.

Key takeaways

Trip charge, service call fee and diagnostic fee overlap. A trip charge covers getting there; a diagnostic fee covers finding the problem. Most shops charge one, not both.
Typical ranges: HVAC diagnostics run about $70–$200; plumbing trip charges cluster around $75–$100, and plenty of plumbers charge nothing.
Price from your costs, not your competitor. Your fee should at least cover one technician hour fully loaded with truck and overhead.
Crediting the fee toward the repair is common and makes the fee easier to accept on the phone.
After-hours and weekend calls are usually charged at 1.5× to 2× the daytime fee.
Say the fee once, plainly, with what it includes. Hesitation on the phone loses more bookings than the number does.

Trip charge vs diagnostic fee vs service call fee

The terms get used loosely, but they mean different things to a customer:

Fee	What it pays for	Where it's common
Trip charge	Getting a licensed technician, the truck and tools to the address	Plumbing, electrical, appliance repair
Diagnostic fee	Time spent finding out what is wrong, often with test equipment	HVAC, where systems are complex and the cause isn't obvious
Service call fee	A catch-all for either of the above	Every trade; customers know this name best

Name matters. “Trip charge” can sound like paying for gas; “diagnostic fee” tells the customer they're paying for expertise. HVAC shops lean on the second for that reason. Whichever you choose, use the same name on the phone, the booking page, the confirmation text and the invoice.

What other shops charge in 2026

Trade	Typical daytime fee	Notes
HVAC	$70–$200 diagnostic; $89 is a common price point	After-hours and weekends often 1.5–2×
Plumbing	$75–$100 trip charge where charged	A sizeable share of residential plumbers charge none and price it into the job
Electrical	Similar to plumbing	More often a flat service call fee when the customer already knows the problem

These ranges come from software vendors and contractor pricing guides (linked at the end), not a government survey, and they swing with your market. A metro shop with $40 parking and 45-minute drives prices differently from a rural shop. Use them to sanity-check your number, not to set it.

How to work out your own service call fee

Price the fee from what one visit costs you, before a single part is sold:

Technician time. Drive time plus about 30–45 minutes on site to diagnose. Use the fully loaded hourly cost (wage, payroll taxes, workers' comp, benefits), not the wage alone.
Truck. Fuel, insurance, payment and maintenance divided by the billable hours the truck works. Many small shops land at $15–$30 an hour.
Overhead share. Office, phones, software, marketing and insurance divided by your billable hours.
Margin. Add your target margin on top; the fee is a product, not a courtesy.

A worked example: a technician costing $42 an hour loaded, a truck at $22 an hour and overhead at $35 an hour comes to $99 for an hour-long visit. At a 20% margin, the floor is about $124. If the local market sits at $89, you have three honest choices: charge more and explain why, cut the time a visit takes, or make up the gap on repairs and say so in your pricing. To work out the labor, truck and overhead per billable hour from your own payroll and yearly costs, use the free labor rate calculator.

Should the fee go toward the repair?

Crediting the fee toward the repair when the customer approves the work is the most common approach, and it answers the caller's real worry: “Will I pay twice?” If they decline the repair, they pay the fee alone. Some shops waive the fee for maintenance plan members, which makes the plan easier to sell.

Whatever you decide, write it down in one sentence and put it in the same place every time. A fee that is credited on some calls and not others turns into an argument at the door.

After-hours, weekend and emergency calls

Night and weekend calls cost more to run: overtime, on-call pay and a technician who isn't available the next morning. Most shops charge 1.5× to 2× the daytime fee. Tell the caller before you book, not at the door, and say when the regular rate starts again (“from 7 a.m. it's our normal $89”). Some callers will wait; the ones who don't wait are the ones who value the fast visit.

What to say on the phone

Callers ask “how much?” before almost anything else. A short, confident script keeps the booking:

“Our diagnostic visit is $89. A technician comes out, finds the cause and gives you a price before any work starts. If you go ahead with the repair, the $89 goes toward it. I have Thursday at 9 or 1. Which works better?”

Three things make it work: the number comes first, the value comes second (a price before work starts), and the question at the end is about time, not about whether they want to book. If the caller pushes back, don't drop the fee; explain what they get, then offer the earliest slot.

Mistakes that cost shops money

Free service calls with no plan to recover them. Free can win the booking, but only if repair pricing covers every visit that doesn't convert.
Different prices from different people. The owner says $79, the office says $99, the booking page says nothing.
Surprise fees at the door. A fee the caller didn't hear about is the fastest way to a one-star review.
Never revisiting the number. Wages, fuel and insurance went up; review the fee once a year.

Where CrewRobin fits

CrewRobin's AI receptionist answers the “how much?” question the same way on every call: it only quotes the price range you set for each job type, says the technician confirms the price on site, and then offers open times. Your fee goes on the booking page and the job's invoice from the same price book, so every channel says the same number.

Frequently asked questions

What is a fair service call fee for HVAC?

Most residential HVAC companies charge between about $70 and $200 for a diagnostic visit in 2026, with $89 a common price. A fair fee covers a technician's loaded hour, the truck and overhead, and many shops credit it toward the repair.

Do plumbers charge a trip fee?

Many do, typically $75 to $100, but a sizeable share of residential plumbers charge no trip fee and build the cost into their job prices instead.

Is a diagnostic fee the same as a trip charge?

Not quite. A trip charge pays for getting a technician to your home; a diagnostic fee pays for the time spent finding the problem. Most companies charge one or the other on a visit, and some call either a service call fee.

Should I credit the service call fee toward the repair?

Crediting the fee when the customer approves the repair is the most common approach and makes the fee easier to accept on the phone. If the customer declines, they pay the fee alone.

How much more should I charge after hours?

Most shops charge 1.5 to 2 times the daytime fee for nights, weekends and holidays. Tell the caller before booking and say when the regular rate applies.

Put it to work this week

Set your fee once and have every call, booking and invoice say the same number. CrewRobin is free until your first 10 booked jobs, no card up front. Start free or see pricing.

Sources

Figures from outside CrewRobin were checked against these pages in October 2026. Most industry benchmarks come from vendors and agencies, so treat them as ranges, not rules.

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