Free HVAC Estimate Template (PDF Generator)
Load calculation, AHRI-matched equipment, refrigerant type, permit and disposal lines, optional add-ons kept out of the total, and a deposit — as a signature-ready PDF that converts to the invoice in one click.
- Real PDF download, not a print dialog
- Optional add-ons priced outside the total
- Deposit line and signature block built in
- Converts to an invoice in one click
Build your estimate
Saved in this browser only — nothing is uploaded.
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An HVAC replacement estimate is a specification as much as a price. It has to say how the system was sized, which matched equipment is going in and on what refrigerant, what the electrical side needs, who pulls the permit, what happens to the old unit, and what you're not doing (ducts, panel, drywall). The generator below prints all of that with your options as optional add-ons and the deposit stated on the page.
Load the HVAC example to see a 3-ton heat pump change-out laid out that way, then swap in your equipment. The generic estimate generator is the same tool without the HVAC preset.
How to write an HVAC estimate
- Add your business and license
Company details, license number and logo, saved in your browser and reused on every document you make here.
- Enter the customer and the property
Name and contact details, plus the job address if the equipment is not at the billing address.
- Number and date it, and set the valid-until date
The number is prefilled. Equipment prices move; keep the validity window short and say so in the notes.
- Start with the load calculation and the matched equipment
The Manual J load calculation and duct static test as their own lines, then the condenser and air handler as material rows with the tonnage, efficiency rating, refrigerant and AHRI reference number in the details.
- Add the installation, electrical, permit and recovery lines
Installation labor as a flat row listing remove, set, braze, evacuate, charge and start up; the electrical requirements; the permit and who pulls it; recovery and disposal of the old equipment.
- Offer options as optional add-ons and set the deposit
Tick Optional on a surge protector or a smart thermostat so it prints priced outside the total. Set the deposit, the warranty statement and the exclusions.
- Download, send, and convert once accepted
Text or email the PDF the same day. When the customer signs, untick Optional on accepted add-ons and press Convert to invoice.
What to include on an HVAC estimate
What should an HVAC replacement estimate include?
The load calculation, the matched equipment, the refrigerant, the electrical, the permit, and the exclusions — in that order. Sizing comes first because it's the thing a bad estimate skips. Section M1401.3 of the International Residential Code requires heating and cooling equipment to be selected with ACCA Manual S using loads calculated under ACCA Manual J or an approved equivalent; matching the old unit's nameplate doesn't satisfy it. Whether your inspector asks for the calc is local. Either way, a row that says 'Manual J load calculation, room by room, results provided in writing' is what separates a bid from a guess, and it's the first thing a second-opinion contractor will look for.
Equipment gets its own rows: outdoor unit and indoor unit separately, each with tonnage or capacity, efficiency rating, the model family and the refrigerant. Put the AHRI certified reference number for the pair in the details — AHRI notes that rebate programs commonly ask for it and that a furnace only joins a certified match when it's the same brand as the outdoor unit. Then the electrical: heat-strip kW, breaker and disconnect, and a plain statement of whether the existing panel can support it.
- Exclusions to write every time: duct replacement or resizing, electrical service or panel upgrades, drywall and attic access repairs, platform or pad rebuilds, asbestos or mold abatement, and code corrections discovered after the old equipment is out.
- Hidden conditions: 'Conditions not visible at the site visit will be priced by written change order before work continues.' Then use one when the plenum turns out to be undersized.
- Price validity: tie it to your supplier's equipment quote — 'valid 30 days or until our equipment quote expires, whichever comes first'.
Good-better-best or one price? How to present HVAC options
Two workable approaches, and the wrong one is the single lump sum with 'options available' scrawled at the bottom. The first is one estimate with the base system in the main table and everything else as optional add-ons — media air cleaner, duct sealing, surge protection, an extended labor warranty, a maintenance plan. Optional rows print in a separate 'Optional add-ons' table and are excluded from the total, so the homeowner can say yes to two of five without a re-quote. The HVAC example is built this way.
The second is true good-better-best on equipment tiers, which needs three documents because the base price changes. Build the first, download it, then change the equipment rows and the number suffix (-A, -B, -C) for the next two; the browser keeps your draft so it takes minutes. Whichever you use, price the extended labor warranty as its own line: manufacturer coverage is parts, not labor, and Carrier's registration terms are a good illustration — registered within 90 days the homeowner picks 10-year parts or 5-year parts plus 3-year labor; unregistered, 5-year parts and no labor at all. Our estimating guide covers the markup math underneath all of it.
Which permit and inspection lines belong on an HVAC estimate?
A permit row, an inspection note, and a sentence about who pulls it. Washington, North Carolina's HVAC change-out guide is typical: permits are required when any heating equipment, air conditioning equipment or ductwork is installed, the permit is issued only to a state-licensed contractor unless the owner-occupant is doing the work, and the permit holder is responsible for scheduling each inspection. Gas-fired equipment often adds a second inspection from the gas utility or a separate authority. Your city's rule is on its building department site; the pattern is the same almost everywhere.
- 'Mechanical permit and final inspection — pulled under our license' as its own row, kind 'Other', with the fee. Pass-through permit fees are commonly not taxed, but confirm for your state.
- Inspection scheduling in the details: 'we schedule and meet the inspector' — it answers who is taking the morning off work.
- Gas and utility coordination when the fuel changes or a meter needs upsizing.
- Refrigerant recovery and disposal as a separate row, so the customer sees the old unit isn't going in a dumpster with a full charge.
How much deposit for an HVAC install, and when is the balance due?
Enough to cover the equipment order, collected on acceptance, with the balance due at startup and a passed inspection — subject to your state's cap. California limits the down payment on home-improvement contracts to $1,000 or 10% of the price, whichever is less; most states have no cap; a few have their own. The deposit guide lists amounts by job type and the state rules. Write what the deposit does — 'covers the equipment order' — and tie the balance to an event the customer can see: startup readings and the inspector's sign-off.
The generator prints 'Deposit due to schedule' with the amount and, on 'Convert to invoice', carries it over as a payment received so the balance due is correct without retyping. If the estimate goes quiet after you send it, that's normal for a five-figure HVAC decision — this follow-up cadence is what brings them back.
FAQ
Do I need a Manual J for a like-for-like HVAC replacement?
The International Residential Code (M1401.3) requires heating and cooling equipment to be selected using loads calculated under ACCA Manual J or an approved equivalent, and matching the old nameplate doesn't meet that standard. Enforcement varies by jurisdiction, but putting the load calculation on the estimate as its own line protects you when the customer's cousin says the old 4-ton was fine.
Should I quote R-410A or A2L equipment in 2026?
Quote what you can actually get and say which it is. EPA's transition rules limit new residential systems to refrigerants under 700 GWP, with an installation allowance, subject to EPA's conditions, for equipment whose components were all made or imported before January 1, 2026 running until January 1, 2027 (longer only for buildings permitted before October 5, 2023). State the refrigerant on the estimate and note that A2L equipment can't reuse an R-410A system's components without following the manufacturer's line-set rules.
How do I present three system options on one estimate?
If the options are add-ons to one base system, use optional rows — they print in a separate table and stay out of the total until accepted. If the options are different equipment tiers, make three estimates with the same number and a suffix (-A, -B, -C); the price base changes, so one document can't show all three cleanly.
What should the estimate say about the manufacturer's warranty?
Say what the parts warranty is, that it's the manufacturer's not yours, who is registering the equipment and by when, and what your labor warranty is separately. Carrier, for example, gives longer parts coverage only when the unit is registered within 90 days of installation; if you sell an extended labor warranty, price it as its own line.
How long should an HVAC estimate stay valid?
As long as your equipment quote holds — often 30 days, sometimes less when a supplier's price is moving. Write 'valid until [date] or until our equipment quote expires, whichever comes first', and use the date as the reason for your follow-up call.
What if the panel can't handle the new heat strip?
Exclude electrical service and panel work on the estimate, say you'll confirm panel capacity at the site visit, and price any upgrade as a separate estimate or a written change order from a licensed electrician. Never absorb it silently into the install price — it's the line most likely to blow the budget.
- IRC 2021 M1401.3 equipment sizing (Manual J / Manual S) — summary
- AHRI — Information for rebate applications
- Carrier — Residential warranty registration and coverage
- City of Washington, NC — Guide to HVAC change-out permits
- CSLB — What a home improvement contract must include (down payment cap)
- EPA — Technology Transitions HFC restrictions by sector
More free contractor tools
Keep reading
- Generic contractor estimate generatorThe same tool without the HVAC preset — for any trade.
- Free HVAC invoice templateWhere this estimate lands: the invoice with the deposit carried over and the serials on it.
- TrustPro CRM for HVAC contractorsSend, sign, collect the deposit and convert — with customer vetting first.
- How to write an estimate for a construction jobThe seven-step process and the markup-versus-margin math.
- Why customers ghost after an estimateThe day-by-day text follow-up that revives a quiet HVAC quote.
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