The price is the price.
No call for a quote. These are the numbers.
Checkup visit
$89
We test every detector in the house.
Book a replacement the same day and this fee comes off the bill.
Detector replacement
$129 each
Kidde i4618, installed. UL-listed hardwired smoke alarm.
Adapter included when the old unit needs one, such as a Firex with the Kidde 0919.
Smoke and CO combo
$129 each
Kidde KN-COSM-IB, installed. Smoke and carbon monoxide in one unit.
Same per-detector price. This is the unit we use near bedrooms in homes with gas or an attached garage.