Matched, not mixed
The outdoor unit and indoor coil must form an allowed combination; the existing furnace or air handler also needs compatibility review.
AC REPLACEMENT / GREATER BOSTON
AC replacement priced as an installed system.
An outdoor unit is only one part of the replacement. The indoor coil, existing furnace or air handler, refrigerant line, drain, electrical work, access, and matched-system compatibility all influence the installed scope.
NO SIGN-INRESULTS BEFORE CONTACT DETAILS“NOT SURE” IS OKAY
01 / THE USEFUL PART
What matters before anyone quotes the work.
Existing size is a clue
Current tonnage is a starting point and sanity check, not automatic sizing for the new system.
Installed means more
Equipment, standard materials, labor, access, allowances, disposal and permit assumptions belong in one installed range.
02 / SYSTEM BRIEF
What narrows an AC replacement range
The free System Check asks only what changes the recommendation or installation allowance.
Open the free System Check →- 01Current AC tonnage or model number
- 02Indoor coil and furnace or air-handler information
- 03Indoor equipment location and access
- 04Outdoor-unit location
- 05Duct modifications and condensate route
- 06Optional thermostat, filtration, and surge protection
03 / COST & SCOPE
Why a responsible price is a range first.
Capacity and match
Size, efficiency, refrigerant, indoor coil, and existing indoor equipment determine eligible combinations.
Installation access
Attic, tight-space, roof, or small-opening access changes labor and safety allowances.
Drain and electrical
Condensate routing, safety devices, disconnect, circuit, and code conditions are verified before fixed pricing.
A complete proposal accounts for equipment, standard materials, labor, installation configuration, access, required accessories, allowances, disposal and permit assumptions. A site review confirms the final scope.
04 / STRAIGHT ANSWERS
Before you decide.
No contact form is required to read these answers or use the System Check.
01Can I replace only the outdoor AC unit?+
Sometimes the scope can retain existing indoor equipment, but compatibility and the permitted matched combination must be verified first.
02Does square footage determine tonnage?+
No. The served area is used as a sanity check. Final equipment sizing is verified before installation.
03Is the online range a fixed quote?+
No. It is a preliminary installed range. HVAC PM verifies sizing, compatibility, access, and scope before a fixed-price quote.
USE THE SITE AS A TOOL
Get the plan first. Decide what to send second.
The System Check can return a broad result early, then narrow it with equipment, installation, venting, condensate, access, and optional photos.