HVAC equipment is one of the few parts of a building estimate where the price you write down and the price you pay can be a year apart. Skanska’s Summer 2026 report put HVAC equipment lead times at up to 52 weeks in some cases and forecast 2026 equipment prices up 10% to 12%, a forecast it had revised up from 8% to 10% earlier in the year. If you price a mechanical package the way you would have in 2022, you can lose a project’s margin before the equipment ships.
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This guide covers how to estimate HVAC equipment cost, how lead times belong in the number, and how to use allowances sensibly. For the duct and piping measurement side, see HVAC ductwork estimating.
Start with the equipment schedule
The mechanical drawings carry equipment schedules listing each unit with its capacity, electrical requirements, and often a basis-of-design manufacturer and model. Build the equipment list from the schedules and match each line to the drawings, since units appear on plans, risers and details and mismatches are common. Then separate the equipment into the items that are priced individually, such as chillers, boilers, rooftop units, air handlers and large pumps, and the smaller items that can be priced in groups, like fan coils, VAV boxes and exhaust fans.
Price from quotes, and date them
Published cost data lags this market, so equipment lines should come from manufacturer or representative quotes. Record the quote date, the validity period, what the price includes (freight, startup, controls, warranty) and the stated lead time. If the specification names a basis-of-design manufacturer but allows equals, price the specified unit and note any substitution assumption.
Check the escalation terms too. Some manufacturers fix the price at order, others only at shipment. That difference is a risk that should be visible, and the way to treat it is explained in tariffs and price changes in estimates.
Scope beyond the box
The equipment price is only part of the cost. Installation includes rigging and setting, which can need a crane for rooftop or large units. Add pads, curbs and vibration isolation, piping and duct connections, electrical connections and disconnects, controls, startup and balancing, and permits or inspections. For packaged equipment, check what the manufacturer’s startup includes. For the electrical connections, confirm who provides them, because this boundary is frequently missed between the mechanical and electrical bids. Our post on HVAC estimating software covers how tools handle these items, and mechanical estimating software and services goes into mechanical packages more broadly.
Lead time is a cost
A 52-week lead time is a schedule problem and a money problem. It can force early purchase and deposits, affect the cost of general conditions if the project waits, and raise the risk of a price change before delivery. Build a short long-lead register for the mechanical package, listing each item, quoted lead time, quote date and the latest order date. The method is in the post on long-lead equipment and procurement planning.
Lead times are not the same everywhere or for every product. Skanska’s own report noted that some electrical and mechanical equipment lead times have improved as manufacturers added capacity. Always confirm with the supplier at the time of bid, and treat any published number as dated.
Using allowances for HVAC equipment
When you cannot get a quote before the bid closes, carry an allowance. Write the allowance as a defined amount for a described item, say the capacity and type, and state what happens if the final price differs. Do not use a generic percentage on the whole mechanical package. Avoid mixing allowance with contingency. The difference is explained in the contingency guide.
Substitutions and value engineering
Long lead times often lead to substitution requests. A different manufacturer may deliver sooner, at a different price, with different performance, dimensions or electrical needs. Price substitutions as alternates with all consequential changes, such as different pad sizes, piping connections or electrical feeds, along with the equipment price difference.
For data centers and other technical facilities
Cooling plants for data centers are the extreme case: large chillers, heat rejection and distribution equipment in quantity, bought early. The way the scope fits together is in data center MEP estimating, and generators and switchgear are covered in data center electrical estimating.
Common questions
How do you estimate HVAC equipment cost?
List equipment from the schedules, price each major item from dated quotes, then add installation, connections, controls, startup and balancing.
How long are HVAC equipment lead times in 2026?
Skanska reported up to 52 weeks in its Summer 2026 report. They vary by product and manufacturer, so confirm at bid time.
When should I use an allowance for HVAC equipment?
When a quote is not available before bid close. Define the item, state the amount and say how differences will be handled.
Mechanical takeoff and pricing
Our MEP estimation service measures the duct, piping and equipment scope from your drawings, and our cost estimation service builds the full price. Send the plans and we will quote it.