Built for HVAC contractors, technicians, and estimators
From load calculations and equipment sizing to client-ready proposals, Calkom unifies the HVAC workflow that's currently spread across spreadsheets, PDFs, and disconnected tools.
What Calkom does
Everything an HVAC contractor needs to design, estimate, and close jobs — in one workspace.
Lead, customer, and job tracking
Client & Project Management
Centralize leads, customers, projects, files, and history. Run a more organized HVAC operation as you scale.
Key Features
- Centralized lead and customer records
- Project workspace with files and notes
- Status tracking from lead to close
- Client communication history
- Document and proposal storage
- Team-friendly project organization
Manual J, sizing & estimation
HVAC Calculations
Run residential load calculations, equipment sizing, and technical estimates inside the same workspace as your projects.
Key Features
- Manual J residential load calculations
- Equipment sizing workflows
- Structured technical estimates
- Calculations linked to projects
- Reusable calculation history
- Designed for accuracy and speed
Client-ready PDFs in clicks
Proposals & Documents
Turn calculations into branded, professional proposals automatically. Look more professional, win more bids.
Key Features
- Branded proposal PDFs
- Project summaries and reports
- Auto-populated from your calculations
- Consistent quoting across the team
- Faster turnaround per estimate
- Documents stored in the project
Who Calkom is for
Built around the way HVAC teams actually work.
HVAC Contractors
Small HVAC Businesses
HVAC Estimators
Residential HVAC Teams
Technicians
Design & Proposal Teams
Your HVAC workflow, unified
From the first lead to a signed proposal — in one place.
Lead
Capture new leads and customer details in a single workspace, ready to be turned into projects.
Project
Spin up a project workspace with files, notes, and the data needed to estimate the job.
Calculation
Run Manual J loads, sizing, and technical estimates connected directly to the project.
Proposal & close
Generate a branded proposal PDF, send it to the client, and track approval and follow-up.
Ready to run a modern HVAC operation?
Try Calkom free and see how a unified workflow changes how your team estimates, proposes, and closes.
Start free with Calkom