| Quick facts | Answer |
|---|---|
| Cost range | About $847.66 to $1,695.33 in Austin; $500 to $1,700 nationally |
| Time | 4 to 8 hours on site; permit approval may take about 1 week |
| Who's qualified | Use a licensed electrician; verify the Texas electrical contractor license |
Do you need a permit for subpanel installation in Austin?
Yes. Austin guidance says adding a new circuit or subpanel requires an electrical permit. For a typical Austin sub-panel job, permit approval may take about 1 week, and a post-install inspection is typically required.
When is a subpanel better than replacing the main panel?
A subpanel branches off the main panel to serve part of a home or a large appliance. It can add capacity when the main panel still has enough overall amperage but lacks open breaker spaces. In that situation, a subpanel can be more cost-effective than replacing the main panel.
What is included in a subpanel installation quote?
A common installation includes the subpanel enclosure, feeder breaker, feeder cable and conduit, licensed electrician labor, and the electrical permit. Ask the pro for a written quote listing each of these items. Garage, ADU, or workshop projects in Austin may run about $1,600 to $3,200.
How do you check an electrician's license in Texas?
Check the Texas Department of Licensing and Regulation for electrical contractor licensing. The state requires a completed Electrical Contractor or Electrical Sign Contractor License Application with a non-refundable $110 fee. Ask the pro for proof of license and insurance before work starts.
What to do next
- Request a written quote itemizing the enclosure, feeder breaker, feeder cable, conduit, labor, and permit.
- Ask the pro for proof of license and insurance, and confirm the electrical contractor license with the Texas Department of Licensing and Regulation.
- Plan the project timeline around the roughly 1 week Austin permit approval before on-site work begins.
- Confirm whether your garage, ADU, or workshop project fits the $1,600 to $3,200 range or the lower standard range.
- Call (737) 367-2100 or email [email protected] for a free quote from a licensed, insured electrician.
Austin Volts is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.



