Upgrading
Note that each object can only have 1 upgrade at a time.
| Handy skill | Object | Upgrade | Failure |
| 3 | Cheap Dish Washer | Silences dishwasher | Makes louder noises |
| 3 | Doorbell | Can choose different sounds | Makes awful sound |
| 3 | Stereo | Increases area of effect | Electrocution |
| 4 | Sprinkler | Auto water | None |
| 4 | Stove | Never catches fire | Catches fire and burns up |
| 4 | Nectar Maker | 1 less bottle but raises value | None |
| 6 | Trash Compactor | More capacity | Electrocution |
| 6 | Tattoo machine | No more bad tattoos | None |
| 6 | Windmill, Solar panel | Better efficiency | None |
| 6 | Fortune Cookie machine | Always positive results | None |
| 6 | Washing machine | ‘fresh clothes’ moodlet lasts longer | None |
| 6 | Styling station | Customers are more satisfied | None |
| 6 | Hot tub | Bigger positive moodlet | None |
| 6 | Fireplace | Never catch on fire | None |
| 7 | Dart board | Never lose again | None |
| 7 | Fireplace | Starts when Sim enters room | Catches fire |
| 7 | Stove | Improves food quality | Electrocution |
| 7 | TV | Adds more channels | Electrocution |
| 7 | Microwave | Faster cooking | Electrocution |
| 7 | Nectar Maker | Produces 2 extra bottles of nectar | None |
| 8 | Stereo | Music plays in all rooms | Electrocution |
| 8 | Computer | Makes games more fun | Electrocution |
| 9 | Food Replicator | Can store more meals | None |
| 9 | Nectar Maker | Increases the value of nectar | None |
| 9 | Fireplace | Can change color of fire | None |
| 9 | Teleporter | Teleporter never fails | None |
Note: When your Sim is in the Firefighter career, you can also upgrade the fire alarm, the fire extinguisher and fire truck.
