Illustrative midpoint: $14,400
What this 2026 estimate assumes
A broad national allowance spanning midrange and premium residential Lennox systems; actual dealer scope and model selection control the quote.
The range is a research starting point, not a promise of local price. It deliberately keeps uncertainty visible so you can compare the same equipment, labor, electrical, controls, permits, ductwork, warranty, and commissioning scope across bids.
What moves the final price
- Premium efficiency and variable capacity can widen the equipment-price range.
- Controls, filtration, zoning, and accessories must appear as separate line items.
- Parts and labor warranty coverage are different promises.
Three checks before you sign
- Verify exact efficiency for the matched system.
- Document controls and accessory model numbers.
- Compare labor warranty exclusions.
Ask each contractor to identify exclusions in writing. A clear exclusion is easier to compare than an undefined allowance discovered after demolition or startup.
Use the range without oversizing the system
Price pages cannot size equipment. Floor area and brand are useful search dimensions, but the final selection should follow a documented load calculation and certified performance at local design conditions. The installation should close with recorded airflow, static pressure, refrigerant or combustion checks, controls, drainage, and safety testing.
Customize the replacement estimateCommon questions
Is $9,800–$19,000 a quote?
No. It is a broad 2026 planning range built from transparent national allowances. Site conditions, local labor, exact equipment, code work, incentives, and contractor scope can move a real bid outside it.
Can square footage or brand determine the right system?
No. Capacity requires a building load calculation, and brand does not replace matched-system performance, installation quality, airflow, commissioning, or local service support.