Free HVAC Estimate Template & Generator
A changeout estimate is two documents in one: what is being removed and what replaces it. This template records the existing equipment by model and serial, states the capacity the replacement was sized at and what that sizing was based on, then itemizes equipment, installation labor, accessories, refrigerant recovery and disposal, duct transition work and the permit. Efficiency and duct upgrades sit below the total as priced alternates, so the base number stays comparable against another contractor's.
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| Description | Qty | Rate | Amount |
|---|---|---|---|
| HVAC equipment allowance | 1 | $6,200.00 | $6,200.00 |
| Installation labor | 20 | $135.00 | $2,700.00 |
| Permit and startup | 1 | $480.00 | $480.00 |
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Use-case checklist
What to include in a hvac estimate
Homeowners shop HVAC quotes side by side, and the bid that loses is usually the one that bundled. If your $10,422.00 base quietly includes a plenum rebuild, a new pad, whip and disconnect and refrigerant recovery while a competing $9,400.00 number assumes the old line set and the existing plenum, the customer sees a thousand dollars of nothing. Alternates blended into a total do the same damage in reverse, because an efficiency upgrade nobody asked for makes you look expensive. There is a technical version of the same problem: sizing off the old nameplate carries forward whatever mistake was made in 2008, and a system oversized for the house short-cycles and dehumidifies poorly, which becomes your warranty call rather than the previous contractor's.
- equipment type, capacity, and efficiency
- included controls and accessories
- installation labor and disposal
- permit, electrical, duct, and condensate assumptions
- warranty, rebates, alternates, and exclusions
Example starting lines
| Description | Qty | Rate |
|---|---|---|
| HVAC equipment allowance | 1 | $6,200 |
| Installation labor | 20 | $135 |
| Permit and startup | 1 | $480 |
Complete it cleanly
State the proposed system type and capacity, efficiency target, included accessories, warranty basis, removal, permit, electrical, condensate, and duct assumptions. Show upgrades as alternates rather than blending them into one total.
How to make a hvac estimate in 6 steps
Open the estimate generator
Start from this page so the estimate opens with fields and sample lines already set up for heating and cooling contractors. No account is needed to create or preview.
Enter both parties
Add your business name, address and contact details, then the customer name and address exactly as they should appear on the record.
Add the hvac lines
Replace each sample line with the real work or goods. Make sure the document shows equipment type, capacity, and efficiency, included controls and accessories, installation labor and disposal.
Check the figures
Totals calculate as you type. Confirm quantities, rates, any tax line and the final total against your own records before you send anything.
Set the reference and dates
Give the estimate a unique number and the correct date so it can be traced later and matched to related documents.
Review and download the PDF
State the proposed system type and capacity, efficiency target, included accessories, warranty basis, removal, permit, electrical, condensate, and duct assumptions. Show upgrades as alternates rather than blending them into one total. Preview is free; a PDF download costs $4.99, or is included with Unlimited.
Worked example
A failed compressor becomes a full changeout, with two alternates
Coldbrook Heating and Air was called to 812 Wren Court on Sept 8, 2026 for a 2008 split system that would not cool. The compressor on condenser model CN-36A, serial 0834K, is locked out, and the 1,780 sq ft single-story house sits on a slab with the furnace in a hall closet.
- Existing system and sizing basis: 2008 3-ton split, condenser CN-36A serial 0834K with a failed compressor. Replacement sized at 3 tons from a room-by-room load calculation performed Sept 8, not from the old nameplate
- 3 tons
- Base equipment: 3-ton 14.3 SEER2 condenser, matched cased coil, and 60,000 BTU 80% AFUE gas furnace, at the distributor's quoted price
- $5,240.00
- Installation labor, 2 technicians at 12 hours each, 24 hours at $118.00 per hour
- $2,832.00
- Accessories included in the base: 24 ft line set, new equipment pad, whip and disconnect, programmable thermostat, condensate safety switch, secondary drain pan
- $940.00
- Removal of the existing condenser and furnace, recovery of the remaining refrigerant, and haul-off
- $385.00
- Plenum rebuild and duct transitions at the furnace, 6 registers rebalanced. Existing trunk and branch runs are reused as found
- $780.00
- Permit allowance and mechanical inspection, passed through at cost
- $245.00
- Base estimate total, equipment plus installation as listed above
- $10,422.00
- Alternate A, not included above: upgrade to a 3-ton 16.2 SEER2 two-stage condenser with a matched variable-speed air handler, add $2,150.00, giving a total of
- $12,572.00
- Alternate B, not included above: replace 1,180 sq ft of attic supply duct with R-8 flex and seal the plenum joints, add $3,460.00. Base plus both alternates is $16,032.00
- $13,882.00
Do not let the alternates roll into one figure. Presented as $16,032.00, this job looks like a contractor upselling a broken air conditioner. Presented as a $10,422.00 base with two add lines the owner can take or decline, it looks like a quote they can actually compare.
When this document is the right choice
Use this estimate to set a realistic expected cost before the final scope is known. An estimate is an informed approximation, not a final invoice. State the assumptions that could move the price and replace it with a quote or invoice once scope is confirmed.
Frequently asked questions
Should I size the replacement off the old unit's nameplate?
The nameplate tells you what was installed, not what the house needs. Windows get replaced, attics get insulated, additions get built, and the original sizing may have been wrong to begin with. Perform a room-by-room load calculation and say on the estimate that you did and on what date, because a customer comparing three bids sees one contractor who measured and two who read a sticker. Oversizing is the failure that actually hurts you, since short-cycling and poor humidity control turn into service calls under your labor warranty.
How do I present efficiency upgrades without inflating my base price?
Price them as alternates below the total, each with its own add amount and its own one-line description, exactly as Alternates A and B do here. That keeps your base directly comparable to the other quotes on the kitchen table while still putting the upgrade in front of the owner. Say plainly that the alternate is not included in the base figure, and if taking both changes the labor hours or the electrical requirement, state that on the alternate line rather than discovering it at install.
Which accessories belong on the estimate instead of being assumed?
Anything a competing bid might leave out and you would still have to install: line set or a statement that the existing one is reused, equipment pad, whip and disconnect, thermostat, condensate safety switch, secondary pan, and any drain routing. On this changeout those items are $940.00, which is most of the gap between a complete bid and a cheap one. Listing them also settles the argument at commissioning about whether the old thermostat was supposed to be reused.
Can I put a utility or manufacturer rebate amount on the estimate?
Name the program if one applies, but do not print a dollar figure as though it is guaranteed, and never subtract it from your total. Rebate amounts, eligibility rules and funding all change, and a customer who budgeted around a number you quoted will hold you to it. Write that rebates, if any, are claimed by the homeowner and must be confirmed directly with the utility or the manufacturer's program administrator before they count on them. Price the job at what it costs.
The customer asks why they should not just replace the compressor. What does the estimate need to show?
Put the repair on the page next to the changeout instead of talking them out of it. Price the compressor replacement with its own parts, labor and refrigerant charge, then state plainly what the repair does not buy: the rest of a 2008 system stays 2008, the coil is still the original match, and a repaired unit carries a short parts warranty rather than a new system's. Note which refrigerant the existing equipment takes and whether your supply of it is steady, because that moves the math more than the labor hours do. Let the owner compare two real numbers on one page, then record which one they chose and on what date.
More estimate templates
Start with the closest business workflow and adjust the details.