Sub-Panel Installation & Repair in San Jose — Clean, Code-Compliant, Warranty-Backed
When you’re out of breaker space — or adding an EV charger, ADU, shop, or kitchen — a sub-panel is the smart, cost-effective way to expand safely. We handle load calculations, permits, neat installation, and inspection so you can power upgrades without headaches.
Service call (diagnostics & firm quote)
Licensed, insured, and local
Lifetime workmanship warranty • 3-year parts
Permits & inspection handled
Priority scheduling (no “same-day” gimmicks)
📞 Call (408) 929-6100
When a Sub-Panel Makes Sense
You’re out of breaker spaces but your main service is otherwise healthy
You’re adding high-draw loads (EV charger, induction range, hot tub, workshop tools)
You want a clean circuit layout for a remodel or detached garage/ADU
You’d like to avoid a full service upgrade — or stage upgrades over time
What We Do (Our Process)
Site visit & safety check (trip hazards, clearances, grounding/bonding)
Load calculation and panel placement plan (garage, shop, ADU, or interior back-to-back where code allows)
Permit submission with clear scope & one-line diagram
Neat installation: conduits aligned, labeling legible, AFCI/GFCI where required
Inspection and homeowner walk-through (panel map + photos for your records)
We follow the current California Electrical Code and local amendments; no shortcuts, no messy runs.
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Why Dollens Electric
Family-run, local, and obsessed with clean work
Lifetime workmanship + 3-year parts warranty
We pull permits, meet the inspector, and label everything so future work is easy
Popular Sub-Panel Use-Cases
Detached garage / ADU: power, lighting, mini-split, washer/dryer
EV-ready home: sub-panel positions your Level 2 charger close to the vehicle
Kitchen remodel: dedicated circuits for induction, MW, DW, disposal, and more
What to Expect on Your First Visit
- A 15–30 minute walk-through and safety check
- Load calc and routing plan with photos
- Written, line-item quote before any work begins
“Dollens Electric upgraded our panel in Sunnyvale so we could go solar. They handled the permit, did clean work, and passed inspection without a hitch. Jason and his crew are the real deal.”
– Monica F., Sunnyvale homeowner
Frequently Asked Questions
Q1. Do I need a permit for a sub-panel in Santa Clara County?
Yes. We handle the permit and meet the inspector so everything passes cleanly.
Q2. What size sub-panel do I need?
Most homes choose 60A–100A depending on new loads and distance. We size it after a load calc.
Q3. Can a sub-panel replace a full panel upgrade?
Often, yes — if your main service has capacity. If not, we’ll quote both options.
Q4. How long does it take?
Most projects are half-day to one full day on-site once the permit is issued.
Q5. Will you label circuits?
Absolutely. Every sub-panel leaves with a clear, accurate directory and photos.
Get Ready for the Gas Appliance Ban in Santa Clara County
The Bay Area Air Quality Management District (BAAQMD) has passed new rules that affect nearly every homeowner in Santa Clara County:
❌ Gas Water Heaters will be banned starting 2027
❌ Gas Furnaces will be banned starting 2029
These changes are part of California’s push toward cleaner, all-electric homes—and they have real electrical implications.
Related Electrical Services You May Need
Thinking about a full upgrade? Learn more about our Electrical Panel Upgrades in San Jose.
Planning to install an EV charger at home? See our EV Charger Installation Services.
Living in an older home? We specialize in Knob & Tube Rewiring.
Remodeling your kitchen? Check out how we handle Electrical Upgrades for Kitchen Renovations.
Call (408) 929-6100
Book Service Online Now »
We accept most major forms of credit cards, including Visa and MasterCard.
Serving
San Jose | Santa Clara | Cupertino | Sunnyvale | Campbell | Los Gatos | Saratoga | Mountain View | Morgan Hill | Gilroy | Los Altos | Surrounding South Bay Areas
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