Coil SMS Programs

Coil operates two separate SMS programs. Each has its own opt-in flow, message scope, and unsubscribe path. Both are described in full below.

Consent to receive SMS is never a condition of any purchase. The Coil web app, mobile app, scheduling, dispatch, customer management, and Front Desk inbound channels all work without enrolling any individual in either program.

Quick navigation: Program 1 — Coil SMS Agent (business owners text Coil's AI assistant) · Program 2 — Coil Front Desk (homeowners text an HVAC shop)

Program 1 — Coil SMS Agent

For HVAC business owners who want to text Coil's AI assistant from their phone. Available to AI Office subscribers who explicitly opt in.

What it is

The Coil SMS Agent lets owners and managers of HVAC businesses text our AI assistant to:

Check the day's or week's schedule.
Create or reschedule jobs ("Schedule Bob Smith tomorrow at 2pm for a service call").
Look up customer contact info or job status.
Get summaries of dispatch state.

It's a B2B-only program. Under this program Coil does not message homeowners. Coil does not send marketing or promotional content over SMS.

How to opt in (optional)

Sign up for the Coil AI Office tier on askcoil.com. SMS opt-in is not required to use AI Office.
During the optional "Link your phone" signup step, enter your mobile number and check the consent box — or click Skip for now to continue without SMS. Existing AI Office users can opt in from Settings → SMS Agent at any time, or never.
If you opt in, you'll receive one confirmation text. Reply YES to activate.

Consent disclosure shown next to the checkbox:
By checking this box, you agree to receive SMS messages from Coil at the number provided, including transactional messages and AI assistant responses. Message frequency varies. Message and data rates may apply. Reply HELP for help, STOP to cancel. See our Privacy Policy and Terms.

Sample messages

Coil: Reply YES to confirm enrollment in Coil SMS Agent. Msg frequency varies. Msg & data rates may apply. Reply HELP for help, STOP to cancel.
Coil: You're confirmed. Reply HELP for help, STOP to cancel.
Coil: Scheduled John Doe for Tue 4/30 at 2pm. Reply STOP to unsubscribe.
Coil SMS Agent. Support: support@askcoil.com. Reply STOP to unsubscribe. See askcoil.com/sms
Coil: You've been unsubscribed and will receive no more messages.

Frequency, rates, opt-out

Message frequency varies based on your use of the assistant.
Message and data rates may apply depending on your carrier.
Reply HELP for help.
Reply STOP to unsubscribe at any time. You'll receive a single goodbye message and no further texts.

Program 2 — Coil Front Desk

For homeowners and commercial customers who text an HVAC shop that uses Coil Front Desk. The shop publishes a dedicated phone number; customers initiate the conversation.

What it is

Coil Front Desk is the inbound customer-communication channel for independent HVAC service businesses that subscribe to Coil's Front Desk add-on. When a customer texts the shop's published Front Desk phone number, Coil's platform sends an automated acknowledgement reply on the shop's behalf, then the shop's office staff follow up over the same thread with scheduling, pricing, and service details.

Brand: Coil (a service of Coil HVAC LLC), operating the messaging infrastructure on behalf of the contracted HVAC shop.

How opt-in works

Customers initiate the conversation by texting the shop's Front Desk phone number, which the shop publishes through whatever channels they use to advertise to their customers (examples include the shop's website, Google Business listing, paper invoices, printed materials, and direct customer communication). By sending a message to that number, the customer opts in to receive an automated acknowledgement reply and follow-up communication from the shop's office staff on the same thread.

Front Desk is not used for promotional or marketing messages. Every message sent under this program is in direct response to a customer-initiated conversation.

Sample messages

Thanks for reaching out to J&T Cooling. We received your message and will be in touch soon.
Thanks — we received your message and will be in touch soon. Reply STOP to opt out.
Hi from J&T Cooling — your repair visit is confirmed for Tuesday between 8 AM and 11 AM. Reply with any questions.
Front Desk: Reply STOP to opt out. Msg & data rates may apply. For help, reply HELP or contact the shop directly.

Frequency, rates, opt-out

Message frequency is low — typically one acknowledgement per inbound message, plus follow-up replies from the shop as the conversation progresses.
Message and data rates may apply depending on your carrier.
Reply HELP or INFO for help. You'll receive a message with opt-out instructions and the shop's contact information.
Reply STOP, STOPALL, UNSUBSCRIBE, CANCEL, END, or QUIT to opt out at any time. You'll receive a single confirmation and no further messages from that shop's Front Desk number.
To re-enroll after opting out, reply START, UNSTOP, or YES.

Carrier disclaimer

Wireless carriers (including but not limited to AT&T, T-Mobile, Verizon, US Cellular, Sprint, and Boost Mobile) are not liable for delayed or undelivered messages.

Privacy (both programs)

Coil does not share, sell, or rent phone numbers or SMS opt-in data to third parties for marketing purposes under either program. Phone numbers and message content are used solely to operate the program the user enrolled in. See our Privacy Policy for full details, including how Coil handles inbound Front Desk message content as part of the contracted shop's customer-relationship data.

Support (both programs)

Email support@askcoil.com for help with either program. For Front Desk specifically, customers may also contact the HVAC shop directly using the contact information the shop publishes.

Get the AI Office plan → Learn about Coil Front Desk →