Electrical Panel Upgrade And Installation | Licensed, Permitted, and Backed by a Lifetime Labor Warranty
DNZ Electrical Services has upgraded electrical panels in Thousand Oaks Panle Upgrades , Agoura Hills Paanel Upgrade , Calabasas, Westlake Village Panel Upgrade, Moorpark, Simi Valley Panel Upgrade and surrounding cities for over 23 years. We upgrade 100-amp and 150-amp panels to 200-amp service, replace failing breakers, pull all required permits, and schedule the city inspection. Every panel upgrade comes with our lifetime workmanship warranty. Most jobs are done in one day.
California contractor license B and C10, license number 1010883. Call 818-514-1417 to schedule a same-day assessment.
4.8 Star Google Rating|23+ Years Experience|10,000+ Homes Served|Licensed CA Contractor #1010883|BBB A+ Accredited
What is an electrical panel upgrade?
An electrical panel upgrade means replacing your old breaker box with a new one that can handle more power. Your panel is the gray metal box — usually in a garage, hallway, or utility room — that controls all the electricity in your home. Each circuit in your home has its own breaker inside that box.
Homes built before 1990 often have 100-amp panels. Modern homes need 200 amps to run air conditioning, electric dryers, EV chargers, and smart appliances safely. When a 100-amp panel tries to run too much at once, breakers trip, lights flicker, and in the worst cases, wiring can overheat.
A 200-amp panel upgrade gives your home the capacity it needs. It also brings your electrical system up to current California code — which matters when you sell your home and when you try to get permits for other work.
Trusted by Homeowners Across Agoura Hills, Thousand Oaks & the Conejo Valley
7 signs your electrical panel needs to be replaced
Most homeowners don't think about their panel until something goes wrong. Here are the signs that tell you it's time to call a licensed electrician in Thousand Oaks or Agoura Hills for an assessment.
Sign 1 — Your breakers trip all the time
If you're walking to the breaker box more than once a month to reset a tripped breaker, your panel is telling you something. Breakers that trip constantly mean your panel is being asked to handle more power than it was built for. This isn't just annoying — it's a warning sign of a system under stress.
Sign 2 — Lights flicker when you turn on appliances
You turn on the microwave and the kitchen lights dim. You run the dryer and the TV flickers. This happens because your panel doesn't have enough capacity to handle multiple loads at the same time. A 200-amp panel upgrade fixes this completely.
Sign 3 — Your panel is 25 to 40 years old
Electrical panels last 25 to 40 years. If your home was built before 1990 and the panel has never been replaced, it's worth having a licensed electrician look at it. Age alone doesn't mean it needs replacing — but age combined with any other sign on this list is a strong signal.
Sign 4 — Your panel is a Federal Pacific, Zinsco, or Pushmatic brand
These three brands have well-documented safety problems. Federal Pacific panels are known to fail to trip when overloaded — meaning they don't shut off when they should, which can cause electrical fires. If you have one of these panels, replacement is strongly recommended. DNZ can identify your panel brand during a free assessment.
Sign 5 — Your panel is full — no room for new breakers
Want to add an EV charger? A hot tub? A dedicated circuit for a home office? If your breaker box is full, you can't add new circuits without first upgrading the panel. DNZ checks panel capacity on every EV charger and major appliance quote.
Sign 6 — You smell burning near your panel or outlets
A burning smell near your panel or outlets is an emergency. Turn off the main breaker and call DNZ at 818-514-1417 immediately. Do not wait. A burning smell means something is overheating inside your walls or panel — this is how electrical fires start.
Sign 7 — You're planning to add an EV charger, solar, or major appliance
A Level 2 EV charger needs a dedicated 40 to 60-amp circuit. Solar systems add load to your panel. A new central AC unit, electric vehicle, or induction range all draw significant power. Before adding any of these, DNZ runs a load calculation to tell you whether your current panel can handle it or whether an upgrade is needed first.
⚠️ If you smell burning, see scorch marks, or hear crackling near your panel — call 818-514-1417 immediately. This is an emergency.
Is Your Panel Ready for an EV Charger or New Appliance?
Not sure if your electrical panel has enough capacitybefore you call? Use our free online panel load calculator. Enter your appliances, select your panelsize, and get an instant answer based on NEC 220.82 residential load calculation methodology -- the same approach licensed electricians use.
Most Conejo Valley homes built before 1987 have 100-amp panels that cannot safely support a Level 2EV charger alongside existing household loads. The calculator tells you in under two minutes whetheryour home is in that category.
Check Your Panel Capacity -- Free Calculator
If the calculator flags a capacity issue, call 818-514-1417. DNZ completes panel upgrades and EV charger installations on the same day in most cases.
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We offer financing
We’ve partnered with Wisetack to offer our customers flexible financing options, so you can pay over time rather than all at once. The application takes about a minute to complete, and checking your options does not impact your credit score.
Finance projects up to $25,000*
Terms from 3 to 120 months*
APRs from 0 to 35.9%*
No hidden fees or compounding interest
Prequalify today with no impact to your credit and contact us to learn about financing your next project!
*All financing is subject to credit approval. Your terms may vary. Payment options through Wisetack are provided by our lending partners. For example, a $1,200 purchase could cost $104.89 a month for 12 months, based on an 8.9% APR, or $400 a month for 3 months, based on a 0% APR. Offers range from 0-35.9% APR based on creditworthiness. State interest rate caps may apply. No other financing charges or participation fees. See additional terms at https://wisetack.com/faqs
How much does an electrical panel upgrade cost in Thousand Oaks or Agoura Hills?
Most electrical panel upgrades in Thousand Oaks and Agoura Hills run $2,500 to $5,000. That price includes:
- The new 200-amp panel and all breakers
- Labor — typically 6 to 8 hours of work
- City permit and inspection fees
- Coordination with Southern California Edison for the service disconnect and reconnect
- Cleanup — we leave the area the way we found it
The price varies based on three things. First, the size of the new panel — most residential upgrades go to 200 amps, but larger homes may need 400 amps. Second, the condition of your existing wiring — if the wiring going into the panel is outdated or not up to code, it may need to be replaced at the same time. Third, what the city charges for permits — this varies by city across LA and Ventura County.
DNZ gives you a firm written price before any work starts. The price we quote is the price you pay. No calls mid-job saying we found something extra.
✅ Most DNZ panel upgrade jobs in Thousand Oaks and Agoura Hills fall between $3,500 and $5,500 — all permits included.
Our panel upgrade processe
What happens during a DNZ Electrical Services panel upgrade — step by step
Here's exactly what to expect from the first call to the inspection sign-off:
- 818-514-1417 or book online — we schedule a same-day or next-day assessment at your home
- We assess your current panel, run a load calculation, and give you a firm written price — no pressure
- You approve the quote — we pull the city permit immediately
- On install day, we coordinate with Southern California Edison to schedule the service disconnect
- SCE disconnects power at the meter — your home will be without power for a portion of the day, typically 4 to 6 hours
- Our licensed electricians remove the old panel and install the new 200-amp panel with all new breakers
- We test every circuit in the house before restoring power
- The city inspector comes out to review the work — usually within 1 to 3 business days
- Inspection passes, SCE reconnects service — your home is back to full power with a modern, code-compliant panel
- We hand you the inspection sign-off paperwork and your lifetime workmanship warranty documentation
Most DNZ panel upgrades are fully complete — permit pulled, work done, inspection passed — within one week from your first call. The physical installation takes one day.
Why homeowners in Thousand Oaks and Agoura Hills choose DNZ
Lifetime workmanship warranty — no other electrician in this area offers this
Most electricians warranty panel work for one year. DNZ warranties all labor for as long as you own your home. If anything we installed ever fails because of our workmanship, we come back and fix it at no charge. We offer this because we only do the job one way — the right way. California contractor license #1010883, in business since 2001.
Upfront pricing — the number we quote is the number you pay
We give you a firm written price before we touch anything. No surprises when the job is done. Our service assessment fee is $85, waived when you move forward with the upgrade. Emergency assessments are $125, also waived when work is done.
SCE Approved Contractor — we coordinate the utility work for you
DNZ is a Southern California Edison approved contractor. We handle the entire coordination process with SCE — the permit, the disconnect request, and the reconnect scheduling. You don't have to make a single call to the utility company. We manage all of it.
23 years and 10,000+ homes in this area
DNZ has been upgrading panels in Thousand Oaks, Agoura Hills, Calabasas, Westlake Village, and Moorpark since 2001. We know the local permit offices, the SCE coordination process, and what inspectors in each city look for. That experience means fewer delays and a smoother process for you
Panel brands and types we work with
Common panel brands in Thousand Oaks and Agoura Hills homes
Many homes in the Conejo Valley and LA County were built between 1960 and 1990. Here are the panel brands we commonly find — and what we recommend for each:
Federal Pacific (Stab-Lok) — replacement recommended
Federal Pacific panels, common in homes built from the 1950s through 1980s, are known to fail to trip when overloaded. This is a documented safety issue. If your home has a Federal Pacific panel with Stab-Lok breakers, DNZ strongly recommends replacement. This panel type cannot be safely repaired — it needs to be replaced entirely.
Square D, Eaton, Siemens, Leviton — upgrade when capacity is needed
These are reputable brands that are generally safe but may need upgrading due to age or capacity — not safety defects. If you have one of these brands in a 100-amp configuration, an upgrade to 200 amps may be needed as your home's power demands grow.
Electrical panel upgrades across LA and Ventura County
DNZ Electrical Services performs electrical panel upgrades throughout the following cities. Our shop is at 5627 Kanan Rd, Agoura Hills — central to the Conejo Valley.
Cities we serve
Our shop is at 5627 Kanan Rd, Agoura Hills — right in the middle of the Conejo Valley. We cover most of LA County and Ventura County, including the cities below
- Thousand Oaks
- Agoura Hills
- Calabasas
- Westlake Village
- Moorpark
- Oak Park
- Simi Valley
- Van Nuys
- Canoga Park
- Camarillo
- Ventura
- Oxnard
- Malibu
- Woodland Hills
- West Hills
- Chatsworth
- Northridge
- Encino
Not sure if we cover your area? Check our Service Area Page or Call or Text 818-514-1417. We'll tell you straight
FAQ
Questions homeowners ask about panel upgrades
Straight answers about electrical panel upgrades in Thousand Oaks, Agoura Hills, and all of LA and Ventura County.
Q: How much does a panel upgrade cost in Thousand Oaks or Agoura Hills?
Most electrical panel upgrades in Thousand Oaks and Agoura Hills cost $3,500 to $5,500. That includes the new 200-amp panel, all breakers, labor, permit fees, and SCE coordination. The exact price depends on the size of the new panel, the condition of your existing wiring, and what the city charges for permits. DNZ gives you a firm written price before any work starts. Call 818-514-1417 for a same-day assessment.
How long does a panel upgrade take?
The physical installation takes one full day. Your home will be without power for roughly 4 to 6 hours during the install. After the work is done, a city inspector reviews it — usually within 1 to 3 business days. From your first call to a passed inspection, most DNZ panel upgrades in Thousand Oaks and Agoura Hills are complete within one week.
Do I need a permit for a panel upgrade in California?
Yes — a permit is required for all electrical panel upgrades in California. DNZ handles the entire permit process for you. We pull the permit, schedule the work to meet code, and arrange the city inspection. You don't have to deal with any paperwork. Unpermitted panel work is a serious problem — it can cause issues when you sell your home and may void your homeowner's insurance for related incidents.
Do I need a panel upgrade to install an EV charger?
Not always. Most homes with a 200-amp panel that isn't already at capacity can add an EV charger circuit without a panel upgrade. If your panel is 100 amps, or if it's already very full, you may need an upgrade first. DNZ runs a load calculation on every EV charger job to check your panel before recommending anything. We are EVITP certified and Tesla Wall Connector certified. Call 818-514-1417.
Is there financing available for a panel upgrade?
Yes. DNZ offers financing through Wisetack. You can finance up to $25,000 with repayment terms from 3 to 60 months and rates from 0% to 35.9% APR based on credit. Checking your rate takes about one minute and does not affect your credit score. Ask us about financing when you call 818-514-1417
Does a panel upgrade increase home value?
Yes. A new 200-amp panel is a selling point — especially for buyers who want to add an EV charger or solar. Buyers and their home inspectors flag old or undersized panels as a concern. Replacing it before listing removes that objection. The estimated return on investment for a panel upgrade is around 50% in most markets.
How do I know if I need a panel upgrade?
Watch for these signs: breakers that trip often, lights that flicker when you turn on appliances, a panel that's over 25 years old, a panel that's full with no room for new breakers, a burning smell near the panel or outlets, or a Federal Pacific or Zinsco brand panel. If you see any of these, call DNZ Electrical Services at 818-514-1417. We check your panel and give you a straight answer with no upsell.
Can I get an EV charger and panel upgrade done at the same time?
Yes — and it's usually more cost-effective to do both at once. One permit, one SCE coordination, one inspection. DNZ installs Level 2 home EV chargers for Tesla, Ford, Rivian, and all other EV brands. When combined with a panel upgrade, we make sure the charger circuit is sized and positioned correctly from the start. Call 818-514-1417 to discuss your project.