Subpanel Installation
A detached garage, workshop, or addition often needs its own subpanel instead of running every circuit back to the main panel.
We size the subpanel to the space’s actual load, run the feeder circuit correctly, and wire it in so it’s safe, code-compliant, and ready for whatever you’re powering next.
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A licensed electrician will contact you within 2 hours.
No obligation · 100% confidential · Licensed & insured
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CA Licensed
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Secondary Power
Extending Power Without Overloading the Main Panel
A subpanel is a secondary breaker panel fed from your main panel, used to distribute power to a specific area — a detached garage, a workshop, a finished basement, or an addition — without running every individual circuit all the way back to the main panel. It’s often the more practical solution when a space needs several circuits at once, since a single feeder to a subpanel is cleaner and easier to expand later than a dozen separate runs.
We calculate the load the new space actually needs, confirm your main panel has enough spare capacity to feed it, and size the feeder wire and subpanel amperage accordingly. If the main panel doesn’t have room to spare, we’ll say so before starting rather than installing a subpanel that can’t be reliably powered.
When You Need a Subpanel
Detached Garage, Workshop, or Shed Needs Power
Finishing a Basement or Adding Multiple New Circuits
Main Panel Has No Open Slots for New Circuits
Planning a Home Addition With Its Own Electrical Needs
All Services
Related Electrical Panel Services
Circuit Breaker Replacement
Fix a single faulty or outdated breaker without replacing the whole panel.
Panel Installation
Full new panel installation for new construction or complete replacements.
Panel Repair
Fix isolated issues — corrosion, loose connections, damaged components — in an otherwise adequate panel.
Panel Upgrade
Replace your outdated or undersized panel with one rated for your actual power needs.
Which Is Right For You?
Subpanel Installation vs. Panel Upgrade — Which Do You Need?
Subpanel Installation vs. Panel Upgrade
Compare solutions to choose the right service for your home
Subpanel Installation
Panel Upgrade
Note: *Pricing shown is a starting reference only. Final pricing depends on site conditions, materials, and permit requirements — call for a free on-site estimate.
WHY CHOOSE US
Why Choose Electrical Land
Capacity Checked First
We confirm your main panel can actually feed a subpanel before installing one.
Sized for the Space
Amperage matched to what the area will actually run.
Clean, Expandable Wiring
Feeder and subpanel sized with room to add circuits later.
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Professional installation for home EV charging
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testimonial
What Our Clients Say
★★★★★
“The question I always ask before quoting a subpanel is how much spare capacity the main panel actually has left. Skipping that step is how people end up with a subpanel that can’t be loaded the way they planned.”
D
Dominic Vasquez
Electrical Land Technician
★★★★★
“We turned our garage into a workshop and needed real power out there, not just one extension cord circuit. Electrical Land put in a subpanel with room for the welder and the compressor both running at once.”
S
Sasha Ollerton
Homeowner
Questions
Subpanel Installation FAQs
How much does subpanel installation cost?
Subpanel installation starts from $1,000, depending on the feeder distance from the main panel and the amperage the new space needs. We provide a written estimate before work begins.
Can my main panel handle a new subpanel?
It depends on how much spare capacity is left. We calculate your main panel’s available load before recommending a subpanel size, and let you know if an upgrade is needed first.
What can a subpanel power?
A subpanel can run anything a main panel can — outlets, lighting, appliances, even an EV charger — as long as it’s sized for that load and fed by a feeder circuit with enough capacity.
Do I need a permit for a subpanel installation?
Most jurisdictions require a permit for a new subpanel since it’s tied into your main electrical service. We handle the permit as part of the installation.
Ready to Get Started
Get a free subpanel installation estimate from a licensed electrician near you.