Gesser OSFOR HVAC, REFRIGERATION AND TRADE CONTRACTORS
Answer every call.Book the visit.Run the job.Get paid.
Gesser OS is one system for the whole day of a field service company: an AI receptionist on your phone line, online booking, work orders, estimates, invoices and payments.
Built and used every day at Gesser Services LLC, Atlantic City, NJ.
- 01Call answered24/7 · AI receptionist
- 02Visit bookeda real open slot
- 03Job documentednotes · parts · equipment
- 04Estimate approvedprice book · PDF · link
- 05Paidcard · pay link · plan
HVAC ✕ Commercial refrigeration ✕ Kitchen equipment ✕ Electrical ✕ Plumbing ✕ Preventive maintenance ✕ HVAC ✕ Commercial refrigeration ✕ Kitchen equipment ✕ Electrical ✕ Plumbing ✕ Preventive maintenance ✕
01EVERY LEAD, ANSWERED
No more missed calls or forgotten messages
01.1
AI receptionist
Answers your line 24/7, asks the right questions, offers real open time slots from your calendar and saves the request. Recordings and robocalls are filtered out; a real person who asks for you gets transferred.
01.2
Chat that books
The same assistant answers your website chat, and Messenger and Instagram once Meta approves your page. It quotes your diagnostic fee from your own price catalog — never an invented price.
01.3
Quizzes for your ads
Short questions, the visit fee before the contact form, and a request that lands in your leads with its campaign attached.
02RUN THE JOB
One work order with everything on it
02.1
Work orders
Visits, typed notes, parts, estimates, invoices and payments on one page. The day board flags stalled jobs and orders with no date.
02.2
Estimates that close
Price book lines, a clean PDF and an approval link for the customer.
02.3
Equipment history
Every unit you touched, with what was wrong and how it was fixed.
03GET PAID
Money in, without chasing it
03.1
Online booking with deposit
Customers pick a time and leave a deposit by card, under your own cancellation policy.
03.2
Invoices and payments
Send an invoice with a pay link. Payment status comes from real payments, not from a number someone typed.
03.3
Maintenance plans
Monthly plans signed online with an electronic signature and billed automatically.
04GROW
Marketing you can measure
04.1
Campaign funnels
Ad → lead → booked → paid, by campaign, so you know which dollar came back.
04.2
Local SEO agent
Drafts local service articles for your WordPress site and publishes the ones you approve.
04.3
Reviews
After the job, a review request with your official Google link.
05YOUR AI, YOUR DATA
Work with the AI you already use
05.1
ChatGPT and Claude
Connect them to your business with read-only access to ask about leads, jobs and unpaid invoices.
05.2
Morning brief
One email each morning: who to call, what to collect and what is scheduled.
05.3
Your business, isolated
Every company's data is separated, with two-factor login for the owner.
How it works
1 · Create your account
Your company name and your trade.
2 · Paste your website
Gesser OS proposes your service catalog and prices for you to review and edit.
3 · Turn on your line
Get an AI phone number, forward your business line to it and start taking requests.
Built in the field
“I don't guess: I measure.”
Gesser OS was built by Sergio Brito, an HVAC and commercial refrigeration technician, to run his own company. Every feature here is used on real jobs before it reaches you.
Stop losing jobs to a missed call
Create your account, or write to us and we will set it up with you.