Head-to-head · HVAC Estimating Software
STACK vs ComfortQuote Pro
STACK leads on 1 check, ComfortQuote Pro on 2, and 0 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreComfortQuote Pro · 5.9/10
- Free planonly STACK
- Most featuresComfortQuote Pro · 2 of 6
ComfortQuote Pro scores higher on our rubric for hvac estimating software: 5.9 against 5.0 out of 10; our editors rank them #7 and #3.
STACK offers free plan; ComfortQuote Pro doesn't. ComfortQuote Pro offers hvac cost database; STACK doesn't publish it. ComfortQuote Pro offers proposal builder; STACK doesn't publish it.
STACK is the better fit for teams needing broad takeoff and estimating workflows. ComfortQuote Pro is the better fit for small HVAC firms building equipment replacement proposals.
- STACK fits best
Teams needing broad takeoff and estimating workflows
- ComfortQuote Pro fits best
Small HVAC firms building equipment replacement proposals
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Side by side
| Feature | STACK 5.0/10 Visit ↗ | ComfortQuote Pro 5.9/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 5.0 | 5.9 |
| Ranking | #3 in HVAC Estimating Software | #7 in HVAC Estimating Software |
| Best for | Teams needing broad takeoff and estimating workflows | Small HVAC firms building equipment replacement proposals |
| Pricing model | Free plan + paid | Paid |
| Starting price | Not published | Not published |
| Free plan | ✓ (best) | — |
| Free trial | — | — |
| Free trial length | 7 days · no card needed | 7 days · no card needed |
| Deployment | Cloud, Desktop, Mobile | Cloud |
| Platforms | Web, Windows, iOS, Android | Web |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business |
| Features STACK 0/6 · ComfortQuote Pro 2/6 | ||
| HVAC cost database | Not published | ✓ (best) |
| Labor-rate database | Not published | Not published |
| HVAC takeoff tools | Not published | Not published |
| Proposal builder | Not published | ✓ (best) |
| Job costing | Not published | Not published |
| QuickBooks sync | Not published | Not published |
| Specs | ||
| Mobile apps | Not published | None |
| Our review | ||
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| Cons |
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| Our verdict | STACK is a cloud-based construction preconstruction platform for specialty contractors, general contractors, suppliers, manufacturers, owners, and developers. Its Takeoff & Estimate product lets HVAC teams upload digital plans, mark up… Read the review → |
ComfortQuote Pro is browser-based estimating and proposal software for HVAC contractors and sales teams. Its central workflow builds Good, Better, and Best equipment options from configured pricing, then adds warranties and accessories… Read the review → |
Strengths and trade-offs
STACK — where it wins
- Digital measurements, markups, overlays, and drawing comparisons
- Labor, material, item, and assembly estimating worksheets
- Web, desktop, mobile access with accounting and ERP integrations
Where it doesn't
- Workflows are construction-wide rather than HVAC-specific
- ERP connectors are available only as a Pro add-on
- Free plan focuses on viewing, markup, and core takeoff tools
ComfortQuote Pro — where it wins
- Good, Better, and Best estimates include equipment, warranties, and accessories
- Branded proposals can be emailed and tracked as pending, won, or lost
- Company plan adds checklists, repair parts, job history, and bulk Excel import
Where it doesn't
- Web-only product with no native mobile applications
- Technician Only Plan is limited to a solo technician
- Company Plan supports up to 10 technician accounts
- STACK5.0/10 · Free plan · 7-day trial
Broad digital takeoff and estimating for HVAC teams that need construction-wide workflows.
Visit STACKFull verdict → - ComfortQuote Pro5.9/10 · From $15/mo · 7-day trial
A focused HVAC proposal tool with equipment pricing, branding, and status tracking.
Try ComfortQuote ProFull verdict →
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All HVAC estimating software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026