Example plan · House with attached garage · data checked 2026-09-15
How many security cameras do I need for every side of a house with an attached garage without running new wires?
Plan on 5 outdoor cameras plus a video doorbell for every side of a typical house with an attached garage without running new wires. This plan costs $720 up front and nothing a month, $720 over 3 years. Everything required is covered, but the backyard is hard to see at night. Your layout will differ, so start from this plan and adjust it.
We picked the easiest install: no new wiring, as few devices and apps as possible. This is a template result, not a site survey: your doors, trees and outlets move the numbers. Open it in the planner to match your own home.
Cameras
5
+ video doorbell
Up front
$720
Buy now: $350
Monthly
$0
records locally
3-year total
$720
hardware + 36 months
| Area | Day | Night | Status |
|---|---|---|---|
| Front door Required | 100% | lit | Covered |
| Driveway Required · unlit at night | 92% | 90% | Covered |
| Side yard Nice to have · unlit at night | 58% | 58% | Partly |
| Patio Nice to have | 100% | lit | Covered |
| Backyard Nice to have · unlit at night | 90% | 52% | Dark at night |
- At night the view of the backyard drops to 52%: use a floodlight or spotlight model, or add a light.
Shopping list
Phase 1 covers your required areas; phase 2 can wait.
| # | Device | Where | Power | Phase | Price | |
|---|---|---|---|---|---|---|
| 1 | eufy Video Doorbell C31 | Front door frame | Rechargeable battery | 1 | $99.99 | Amazon.com ↗ |
| 2 | eufy eufyCam C37 4K | Above the garage door | Solar + battery | 1 | $129.99 | eufy store ↗ |
| 3 | eufy SoloCam E42 | Front eave, left corner | Solar + battery | 1 | $119.99 | Amazon.com ↗ |
| 4 | eufy eufyCam C37 4K | Back eave, right corner | Solar + battery | 2 | $129.99 | eufy store ↗ |
| 5 | eufy SoloCam E42 | Left side wall | Solar + battery | 2 | $119.99 | Amazon.com ↗ |
| 6 | eufy SoloCam E42 | Back eave, left corner | Solar + battery | 2 | $119.99 | Amazon.com ↗ |
| Hardware total | $719.94 | |||||
Monthly fees
None. Every device in this plan records locally without a subscription.
What you give up by skipping the plan
- eufy Video Doorbell C31: cloud backup
- eufy eufyCam C37 4K: cloud backup
- eufy SoloCam E42: cloud backup
- eufy eufyCam C37 4K: cloud backup
- eufy SoloCam E42: cloud backup
- eufy SoloCam E42: cloud backup
Wi-Fi check
Add two mesh nodes near the right side and back walls. 2 spots are likely out of reach.
- Front door frame -62 dBmgood
- Above the garage door -86 dBmpoor
- Front eave, left corner -69 dBmfair
- Back eave, right corner -76 dBmpoor
- Left side wall -61 dBmgood
- Back eave, left corner -71 dBmfair
Most cameras only connect on 2.4 GHz. If your mesh merges bands into one network, turn on a separate 2.4 GHz network for them.
Power and install, spot by spot
1eufy Video Doorbell C31 · Front door frame Rechargeable battery
Use the quick-release mount so the camera is easy to take down and charge.
Charging: About every 9 weeks at ~30 events/day (estimate; maker: 180 days, usage not stated (we assume 10 events/day)).
• Wi-Fi battery cameras can be knocked offline by a jammer. If you can, wire the camera at this key spot.
Planning reach: ~14 ft by day, ~10 ft at night, 160° wide.
2eufy eufyCam C37 4K · Above the garage door Solar + battery
Aim the panel toward the south, clear of shade.
Charging: Should stay charged most of the year in direct sun (estimate).
• Wi-Fi battery cameras can be knocked offline by a jammer. If you can, wire the camera at this key spot.
• Hold it in place with tape and check the live view before you drill.
Planning reach: ~40 ft by day, ~30 ft at night, 135° wide.
3eufy SoloCam E42 · Front eave, left corner Solar + battery
Aim the panel toward the south, clear of shade.
Charging: Should stay charged most of the year in direct sun (estimate).
• Wi-Fi battery cameras can be knocked offline by a jammer. If you can, wire the camera at this key spot.
• Hold it in place with tape and check the live view before you drill.
Planning reach: ~40 ft by day, ~30 ft at night, 130° wide.
4eufy eufyCam C37 4K · Back eave, right corner Solar + battery
Aim the panel toward the south, clear of shade.
Charging: Should stay charged most of the year in direct sun (estimate).
• Hold it in place with tape and check the live view before you drill.
Planning reach: ~40 ft by day, ~30 ft at night, 135° wide.
5eufy SoloCam E42 · Left side wall Solar + battery
Partial sun here: aim the panel south and keep it clear of branches and the roof shadow.
Charging: Solar helps, but the maker doesn't publish battery life, so we can't estimate low-sun months.
• Hold it in place with tape and check the live view before you drill.
Planning reach: ~40 ft by day, ~30 ft at night, 130° wide.
6eufy SoloCam E42 · Back eave, left corner Solar + battery
Aim the panel toward the south, clear of shade.
Charging: Should stay charged most of the year in direct sun (estimate).
• Hold it in place with tape and check the live view before you drill.
Planning reach: ~40 ft by day, ~30 ft at night, 130° wide.
What to know about this plan
- Most microSD cameras ship without a card. Budget for a high-endurance card; it isn't priced here.
Assumptions we had to make (4)
- night-vision range not published; assumed 10 ft
- sensor width taken as 3840 px from the "4K" label
- night-vision range not published; assumed 30 ft
- motion-detection range not published; capped at 40 ft (typical PIR sensor)
The settings behind this plan
- Areas
- Front door (required), Driveway (required), Side yard, Patio, Backyard
- Monthly fee
- Allowed
- Wiring
- Existing outlets, lights and doorbell wires only
- Budget
- No limit
- Smart home
- Any
- Climate
- Mild winters
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