HVAC · free to use
HVAC software for service, installs and plans. …tune-ups that repeat, installs that close, payments that come in.
Run installs, service calls, and maintenance plans — manage customers, schedule the work, send estimates, and get paid from one app.
Free to use, no matter your size.
Built for how you work. Free at every size.
The short answer
Service Penguin is free HVAC software for small heating and cooling businesses. Set seasonal tune-ups once, send install estimates with options and a deposit, schedule by technician or crew, and collect by card or bank when the job wraps. $0 a month, every feature, every user.
- $0
- a month
- Every
- feature
- Every
- user
- Free
- app for your customers
Sound familiar?
The work is the easy part. This is the rest.
Without it
- Maintenance agreements tracked in a spreadsheet
- Install estimates that take all evening to write up
- Waiting weeks on payment for a big install
- No record of what was done at each home
With Service Penguin
- Maintenance plans with recurring billing
- Install estimates with options, approved on their phone
- Paid on big installs by card or bank, with deposits
- Every home's history on file
Hand the rest to the app.
Just your email to start. $0 a month.
HVAC software
From the first quote to paid.
One app for the whole job, built for how you work.
- Maintenance plans Recurring visits and billing.
- Install estimates Options and a deposit.
- Schedule by tech or crew With double-booking checks.
- Every home on file Notes and the full history.
- Paid on the install Card or bank, deposits too.
- Arrival times, sent Every morning, on their own.
Getting started
Up and running in three steps.
-
1
Add your customers and properties
Bring over your accounts. Each property keeps its notes and history.
-
2
Schedule the work
Book service calls, installs and repeat maintenance visits, and mark each one done.
-
3
Estimate, invoice and get paid
Send the estimate, let the invoice build from the finished work, and collect by card or bank.
Your first customer can be in today.
Just your email to start. $0 a month.
The customer app
Your business, on their phone.
Every customer gets a free app with your business in it.
- Arrival times Sent every morning, on their own.
- One thread with you Your number stays private.
- A summary after every visit With your photos.
- Pay in one tap Card or bank, saved for next time.
- Service history Informed customers are happy customers.
- Free for them And free for you.
Look like the big company from your first customer.
Just your email to start. $0 a month.
HVAC
Questions HVAC pros ask
- Is there free HVAC software?
- Yes. Service Penguin is free to use: $0 a month for every feature and every user. It charges one small all-in fee only when you take a card or bank payment.
- Can I run maintenance agreements?
- Yes. Set seasonal tune-ups once, and bill maintenance plans on a recurring schedule.
- Can I take a deposit on an install?
- Yes. Agree the deposit and milestone payments on the estimate. The customer pays by card or bank from their phone.
- Can I schedule by technician?
- Yes. One schedule by technician, truck or crew, with double-booking checks.
- How much does Service Penguin cost for an HVAC business?
- Nothing a month. Every feature and every user is included. Service Penguin charges one small all-in fee when you take an electronic payment, with card processing included, and recording a cash or check payment is free.
Built for pros who do the work at the customer's place
For a business of any size. It scales from a solo part‑timer to the largest multi‑crew operation.
Create your free account ›Free to use, no matter your size
Start with your first customer. Still here at your tenth crew.
Set up in minutes. Send your first estimate today.
- $0 a month
- Every feature
- Every user
One person or ten crews: the same app, the same price.
See everything else it does →