Two heat pump quotes can be $8,000 apart and both look reasonable until you line up the scope.
Do not compare the total first. Compare what the total includes.
Quick Answer
A usable heat pump bid should name the equipment, matched indoor and outdoor units, sizing basis, duct work, electrical work, backup heat strategy, thermostat controls, permits, rebates, warranty, and exclusions. If a quote skips those lines, the price is not comparable yet.
This page is the blank worksheet. Start with Heat Pump Quotes: Compare Before You Sign for the line-by-line explanation, then return here and put each bidder in the same columns.
Worked example: two real proposals compared
These two illustrative quotes show why the total alone cannot rank a bid. They are examples built from this site's own published cost bands, not a real homeowner's data.
Quote A: 3-ton ducted, dual fuel. Keeps the home's existing 92% AFUE gas furnace as backup and reuses the existing ductwork.
| Quote A line item | Amount | Status |
|---|
| Outdoor heat pump, coil, and labor (matched to the retained furnace) | $12,400 | Named |
| Electrical: dedicated 240V circuit and disconnect (no strip kit needed for dual fuel) | $900 | Named |
| Permit (mechanical only) | $300 | Named |
| Duct condition: static-pressure or leakage test | Not stated | Excluded, ducts "assumed usable" |
| Commissioning and startup records | Not stated | Excluded |
| Contractor labor warranty | 1 year | Named |
| Total before incentives | $13,600 | |
Quote B: four-head ductless, all-electric with strip backup. New construction of a whole-home ductless system, existing 100A electrical service, no ducts.
| Quote B line item | Amount | Status |
|---|
| Outdoor unit, 4 indoor heads, electric strip kit, and labor (strip kit bundled into this line, not itemized) | $14,900 | Named |
| Electrical: dedicated circuit and disconnect only | $1,100 | Named |
| Permit | $450 | Named |
| Panel load review or upgrade for 4 heads plus strip backup | Not stated | Excluded |
| Commissioning and startup records | Not stated | Excluded |
| Contractor labor warranty | 2 years | Named |
| Total before incentives | $16,450 | |
Quote B looks $2,850 more expensive. That comparison is not settled yet: Quote A never confirmed the ducts will pass a static-pressure test, and Quote B never confirmed the panel can carry a fourth head plus electric strip backup. Both are real costs if they turn out to apply, and neither bidder priced them.
Add back what's missing before comparing totals
Price each excluded or unstated line at this site's own published range, the same one used elsewhere on the site, rather than assuming it costs nothing.
| Missing scope | Which quote | Published range to add back | Source |
|---|
| Duct repair if the static-pressure test fails | Quote A | roughly $6,000-$7,000, the gap between this site's "ducts usable as-is" and "duct repair or panel/electrical work added" whole-home bands | Ducted vs mini-split |
| Panel upgrade if the existing service cannot carry the added load | Quote B | $1,500-$4,000 | Heat pump buying guide, panel upgrade guide |
| Commissioning and startup records | Both | No published dollar range exists; treat this as a required written deliverable, not a line to price | How to read a heat pump quote |
Adding the worst case of each risk: Quote A becomes roughly $19,600 to $20,600, and Quote B becomes roughly $17,950 to $20,450. The $2,850 raw gap mostly disappears once the two open questions are priced, because each quote is hiding a different risk of comparable size.
Scope-adjusted price per ton
The heat pump quote calculator screens a quote by subtracting only the named electrical and duct or distribution work from the total, then dividing by nominal tonnage:
Scope-adjusted price per ton = (total - named electrical work - named duct or distribution work) ÷ nominal tons
Applied to the two named-only totals above, both sized as roughly 3 tons of combined capacity:
- Quote A: ($13,600 - $900 electrical) ÷ 3 tons = $4,233 per ton
- Quote B: ($16,450 - $1,100 electrical) ÷ 3 tons = $5,117 per ton
Both sit inside the calculator's broad US screen of roughly $3,000 to $7,333 per ton on a 3-ton baseline, so price alone does not disqualify either bid. Once the worst-case add-backs above are folded in, Quote A moves to roughly $6,200 to $6,600 per ton and Quote B moves to roughly $5,600 to $6,500 per ton, converging instead of diverging. That is the actual lesson: the per-ton math only means something once the same unresolved items are priced into both sides.
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When the cheaper bid is genuinely cheaper
Use this rule before ranking two quotes by price:
- Confirm both proposals cover the same rooms and comfort goal. A ducted system and a four-head ductless system are not directly comparable until you have made the distribution decision separately from price.
- For every blank, "TBD," or excluded line, either get the bidder to confirm in writing that the scope does not apply to this home (a passed static-pressure test, a panel load calculation that already accounts for backup heat), or price it using a published range and add it to that bidder's total.
- Compare the resulting scope-adjusted price per ton, not the raw total.
A lower raw total is not a lower price. It is an unpriced question until the bidder answers it in writing.
Comparing backup heat strategies fairly
Dual fuel and electric-strip backup rarely show up as the same line item, so a side-by-side quote can hide the real tradeoff in three places.
Installed cost. Dual fuel adds no new backup equipment because the furnace is already there, but it depends on that furnace being healthy enough to keep running; see the repair-or-replace guide for when an old furnace's own age should factor into the decision. Electric strips are usually bundled into the equipment price, as in Quote B, so the real hidden cost is not the strip kit itself. It is the panel and circuit capacity strips need, since electric backup strips can add a 40 to 60 amp load that a 100A panel may not have room for.
Operating cost. Electric resistance backup costs money at the full electric rate every time it runs, with no efficiency multiplier. Dual fuel shifts that cost to whatever the retained furnace burns, and only below the system's balance point. Ask for that balance point and the estimated hours per winter it triggers, using the shortfall arithmetic in verify a heat pump's output at your design temperature and the fuel-cost comparisons in heat pump vs gas furnace and the backup heat guide.
Panel load. Ask directly whether the panel and service size were evaluated with the backup heat load included, not just the compressor's own draw. That is exactly the question Quote B above leaves open.
Your blank bid comparison template
Put your own proposals in the same columns as the worked example above.
| Line item | Quote A | Quote B | What to ask |
|---|
| Load calculation | | | Manual J or other sizing basis? |
| Outdoor unit | | | Exact model, capacity, cold-climate rating? |
| Indoor units or air handler | | | Matched system? |
| Duct work | | | Existing ducts tested or modified? |
| Electrical | | | Circuit, panel, disconnect, permit? |
| Backup heat | | | Integrated, retained furnace, or none? |
| Refrigerant lines | | | Included and routed how? |
| Rebates | | | Source and date? |
| Warranty | | | Labor and parts separated? |
| Exclusions | | | What can become a change order? |
Sizing first, brand second
A good brand installed with weak sizing is still a bad project. Ask how the contractor sized the system and how they accounted for insulation, windows, ducts, design temperature, and backup heat. The industry-standard method is ACCA Manual J, and we explain what a real one looks like in heat pump sizing and Manual J.
If the answer is "we replace like for like," keep asking. Brand ranking comes after that conversation, not before, and our best heat pump brands guide explains why.
Warranty is two separate promises
The "Warranty" row above hides a common trap: the manufacturer's parts warranty and the installer's labor warranty are two different documents with two different terms, and the manufacturer's longest coverage usually depends on a registration deadline the homeowner has to meet after signing. See the heat pump warranty guide for what to check before treating a "12-year warranty" headline as settled.
Rebate claims need dates
Heat pump incentives change. A quote that subtracts a rebate should show the program name, effective date, eligibility assumptions, and who files. If the contractor cannot source it, treat it as an estimate, not a discount.
A rebate is not a design.
Exclusions are where the quote hides
Read the exclusions before the equipment model. Common missing lines include panel upgrades, duct sealing, asbestos, condensate pumps, line-hide, wall repair, permits, thermostat wiring, and disposal. Our guide on how to read a heat pump quote walks through each line.
The best quote is not the longest. It is the clearest.
Frequently Asked Questions
Should I choose the cheapest heat pump quote?
Only after the scope matches. A lower quote can be fair if it includes the same sizing, equipment, labor, electrical work, permits, and warranty.
Is Manual J required?
Local rules vary, but serious sizing should be based on load, not guesswork. Ask what calculation or method the contractor used.
What is the biggest heat pump quote red flag?
A rebate-adjusted price with no dated source, or a system size chosen without explaining the load.
Should I send my quote for review?
If the quote is expensive, unclear, or rebate-heavy, yes. A second read before signing is cheaper than fixing a bad scope. Our quote review is free.
How do I compare two heat pump quotes that use different equipment, tonnage, or backup heat?
Do not compare the totals directly. First confirm whether each excluded or unstated line applies to your home, then price any that do using a published range and add it to that bidder's total. Only compare the resulting scope-adjusted totals, and the price per ton, once both quotes reflect the same finished scope.
What is scope-adjusted price per ton?
It is the total quote minus any named electrical and duct or distribution work, divided by nominal system tonnage. The heat pump quote calculator uses this method to screen a quote against a broad editorial range. It flags questions. It does not approve sizing, equipment, or installation quality.
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