Arrived onsite and was let in by the resident and we discussed the 3 smoke detectors that are currently in the home. After an evaluation of them, 2 weren’t even hardwired and all of them are expired. They also were not combo detectors. I discussed what we would be doing and about how long it would take and then i went outside and developed pricing to get it done, and then gave the homeowner a call to get it approved. While on the phone she approved the work and i told her how long it would take, and also collected on the phone as well. Afterwards we went in the house and removed and replaced all 3 of the old detectors with our new 10 year backup battery, hardwired smoke/carbon combo units in their places. Once installed we tested and all 3 are verified working.