home › cost guides › Subpanel installation
Subpanel installation cost
A subpanel installation runs $900–$2,500 in the main dwelling; feeding a detached garage or shop runs $1,500–$4,000 with trenching. Subpanels are the play when your main panel is full but healthy.
Price at a glance
| Item | Typical |
|---|---|
| Job price range | $900–$2500 |
| Common variants | Detached garage/shop runs: $1,500–$4,000 with trenching |
| Labor share | Half to full day |
| Permit | Yes |
| Duration | Half to full day |
National job price data from the ee.ltd cost database, 2026 edition.
What drives the price
- Feeder size and length
- Main vs main-breaker style
- Detached structure grounding rules
- Future circuit headroom
DIY verdict
No
Other electrician job costs
Get free quotes for electrician work
Compare licensed local pros — typical prices on this page are national averages; your local quotes are the real numbers.
Before you hire
- Avoid contractor scams
- Electrician cost guide
- Ask for license + insurance certificates in writing