Nightline / Guide

Emergency call script for plumbing and HVAC shops

A copy-paste script for emergency calls: what to ask, how to tell a real emergency from one that can wait, what to promise.

When the phone rings at night, nobody thinks clearly, including the person answering. A written script keeps the call short and makes sure you get the address, the problem and the safety answers every time. Copy the blocks below, replace the items in [brackets] with your own details, and print it for whoever carries the on-call phone.

Opening lines

Start calm, give the company name, and get a callback number before anything else. If the line drops, you can still reach the caller.

"[Company name], this is [your name]. I'm sorry you're dealing with this tonight.
First, what is the best number to reach you if we get cut off?
Thank you. Now tell me what is happening."

Let the caller talk for a moment before you start asking. Listen first for the words that point to danger: gas, smell, alarm, smoke, sparks, fire.

Safety first lines

Do this check before the plumbing or HVAC questions, every call. If any answer is yes, read the matching line and stop the normal script.

Gas smell: "Please leave the building right now, with everyone in it, and do not turn any switches or lights on or off. Once you are outside, call 911 or your gas utility. Call us back after that."

Carbon monoxide alarm, or people feeling dizzy or sick with an alarm sounding: "Get everyone outside into fresh air now and call 911 from outside. Do not go back in until the fire department says it is safe."

Fire, smoke or sparking: "Leave now and call 911 from outside."

Water near electrical outlets, a panel or appliances: "Do not touch the water or anything electrical. If you can leave the building, do so and call 911 or your utility from outside. Call us after that."

For the caller whose emergency is only water, the one thing you can say is: "If it is safe to do so, shut off the main water valve." Do not walk callers through any repair.

Plumbing questions

Ask only what you need to decide if this is an emergency and what to send.

Leak:
1. "Where is the water coming from?"
2. "Is it still running, or has it stopped?"
3. "If it is safe to do so, can you shut off the main water valve? Do you know where it is?"
4. "Is the water reaching electrical outlets, a panel or the ceiling light?"
5. "Which floor, and is anyone below affected?"

Clog or backup:
1. "Is sewage coming up in a drain, toilet, tub or floor?"
2. "Is it just one fixture, or several?"
3. "Is it spreading into living space?"

No hot water:
1. "Is it all fixtures or just one?"
2. "Is there a leak around the water heater?"
3. "Do you smell gas near it?" (If yes, read the gas line above.)

Sewer smell:
1. "Where is it strongest?"
2. "Has any drain backed up?"
3. "Is the smell gas-like or sewage-like?" (If gas-like, read the gas line above.)

HVAC questions

No heat:
1. "What is the thermostat set to, and what does it show?"
2. "What is the temperature outside tonight, roughly?"
3. "Is anyone in the home a baby, elderly, or unwell?"
4. "Do you smell gas, or has a carbon monoxide alarm gone off?" (If yes, safety lines first.)

No cooling:
1. "What is the thermostat set to, and what does it show?"
2. "Is anyone in the home elderly, unwell, or an infant?"
3. "Is the outdoor unit running?"

Strange smell or noise:
1. "What does it smell like? Burning, gas, musty?"
2. "Did it start when the system came on?"
3. "Is there smoke?" (If yes, read the fire line.)

Any HVAC call:
"Is there an adult who can be home when the technician arrives?"

You are not diagnosing the system. You are collecting enough detail for the technician and to decide how urgent the call is.

Emergency now or morning list: a decision table

Use this as a starting point and edit it to match your shop. The owner should own this table.

What to promise

The fastest way to lose a customer at night is to promise a time you cannot hit. Promise only what you control: that a technician will call, and that you have the details.

Emergency:
"I have your address and the details. I am contacting our on-call technician now.
They will call you back at [callback number]. Please keep your phone nearby.
If the situation changes, or you smell gas, leave the building and call 911 first."

Morning list:
"I have everything written down. Nobody will come tonight, because this can wait.
We will call you when the office opens at [opening time] to set a time.
If it gets worse, call this number again."

Never give an arrival time at night unless the technician has confirmed it to you. Say "will call you back", not "will be there in".

Calls may be recorded by your phone system or a provider. Recording consent rules differ by US state, so check your state's rules before you record, and tell callers when you do.

Turn the script into a rule set

The script works because every call goes through the same questions. You can write the same logic as a short list of rules and keep it taped next to the phone, or hand it to whoever sets up your answering.

RULE 1: if the caller mentions gas, an alarm, smoke, fire or sparks: read the safety line, end the normal script.
RULE 2: if water is running and the valve is not shut: emergency now.
RULE 3: if sewage is in living space: emergency now.
RULE 4: if heat is out and it is below [your temperature]: emergency now.
RULE 5: if a baby, elderly or unwell person is without heat or cooling: emergency now.
RULE 6: everything else: morning list, with the opening time promised.
RULE 7: no confirmation from the on-call tech: try Backup 1, then Backup 2, then the owner.

If you want to see how the on-call part works day to day, read the guide on handling after-hours calls in a plumbing business. If you are comparing paid options for answering, see answering service cost for plumbers and HVAC.

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