400 amp electric panel upgrades

  • 480-694-6531 
  • ⚡ Panel Problems? Talk to a Technician Now
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    • Guaranteed Lowest Price from Any Licensed Contractor

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    • Free Advice & Estimates

    • Family-Owned & Operated

    • 50 Years of Experience

    • Electric Panels Are All We Do

    Your panel problem is our business. Let us solve it today. 📞 Call Phil directly at 480-694-6531

400 amp panel upgrade, What's the process and cost for electric panel replacement

 

⚡ 400-Amp Panel Upgrade Guide – What Arizona Homeowners Need to KnowWe Handle Everything — Start to Finish

Upgrading to a 400-amp electrical panel in Arizona is a comprehensive project that includes coordinating with utility companies, securing city permits, performing trenching, and utilizing specialized equipment. Companies like RESArizona offer full project management, from the initial consultation to the final inspection.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 Step 1: Utility Company Coordination

  • We contact your utility company on your behalf.

  • They assign a Project Manager to:

    • Schedule a site visit (within a few days to a couple of weeks)

    • Inspect your current panel, wire size, conduit, and transformer

    • Assess whether your transformer can handle the upgrade

💡 In rare cases, transformer upgrades may be required. Typical cost: ~$5,000.

 

 Step 2: Electrician Planning & Panel Selection

  • The Project Manager provides instructions or plans to your electrician.

  • Your electrician will:

    • Estimate the full job cost

    • Select the appropriate 400-amp panel

Panel Options:

TypeDescriptionAdditional Cost
Standard400-amp panel with integrated buss and dual 200-amp breakersLeast expensive
Code-CompliantRequires two remote sub panels+$1,200 each
Solar-ReadyAvailable for both panel typesVaries
 
 

 Step 3: Grounding & Bonding

  • Ground rods may be required: $200+

  • Larger bond wire to water/gas lines (if not PEX):

    • 1/0 or 2/0 copper wire

    • $4–$6 per foot, plus installation

 

 Step 4: Trenching & Conduit

  • Based on utility drawings, we bid trenching and conduit installation:

    • 3" PVC conduit with mule tape: ~$20/foot installed

    • Trenching & backfill: ~$20/foot depending on soil and distance

 

 Transformer Costs

  • Transformer upgrades are handled directly between the homeowner and the power company.

  • Not typically included in the electrician’s bid.

 

 Engineering & Permits

  • Cities like Phoenix and Glendale require engineered drawings for permit submittals.

  • This adds approximately $1,500 to the project.

 

💬 Free Advice & Estimates

We’re here to make this process simple and affordable. 📞 Call Phil directly at 480-694-6531 — let’s talk about your panel upgrade today.

 

400 amp electric panel upgrade Cost

Base 400 amp panel upgrade in same loction

⚡ 400-Amp Panel Upgrade Pricing & Process

What Arizona Homeowners Need to Know

 

 Estimated Cost

Upgrading from a 200-amp main panel to a 400-amp main meter panel starts at $5,800. For a base 400-amp panel installation, expect to spend between $5,800 and $6,500 for parts and labor.

Additional Costs May Include:

  • Arc fault breakers: ~$65 each

  • Taxes & permits

  • Complexity of installation

  • Trenching to utility transformer or junction box (if feeders are undersized)

⚠️ Note: These panels are no longer legal in Phoenix and Scottsdale.

 

🔧 Grounding & Bonding Requirements

Certain conditions may require additional grounding and bonding work:

  • Ground rods: $200 and up

  • Bond wire to water/gas lines (if not PEX):

    • 1/0 or 2/0 copper wire

    • $4–$6 per foot, plus installation

 

 Electric Trench & Conduit

Trenching and conduit installation are based on utility drawings and project manager requirements:

ItemDescriptionEstimated Cost
Conduit3" PVC with mule tape~$20/foot installed
TrenchingStandard dig & backfill~$20/foot depending on soil & length
 
 

 Transformer Costs

Transformer upgrades are handled directly between the homeowner and the power company. These are not included in the electrician’s bid.

 

 Engineering & Permits

Cities like Phoenix and Glendale require engineered drawings for permit submittals. This typically adds $1,500 to the overall project cost.

 

💬 Free Advice & Estimates

We’re here to make your upgrade smooth and affordable. 📞 Call Phil directly at 480-694-6531 to get your quote and talk through your project.

 

Advice and Estimates are always free. Call Phil at 480-694-6531

400 amp solar ready electric panel upgrade Cost

Solar ready 400 amp panel upgrade in same loction

☀️ 400-Amp Solar-Ready Panel Upgrade

What Arizona Homeowners Should Know Before Upgrading

 

💰 Starting Price: $6,200

Upgrading from a 200-amp main panel to a 400-amp solar-ready main meter panel starts at $6,200. These specialized panels include:

  • 🔋 A dedicated solar input (up to 200 amps) that doesn’t affect your 400-amp usage

  • ⚡ A 200-amp breaker feeding a buss below

  • 🔌 A secondary slot to feed a 200-amp sub panel in another location

⚠️ Note: These panels are no longer legal in Phoenix and Scottsdale due to updated code requirements.

 

🔧 Grounding & Bonding Considerations

Your electrician may need to include additional grounding and bonding work:

  • 🪫 Ground rods: $200 and up

  • 🔗 Bond wire to water/gas lines (if not PEX):

    • 1/0 or 2/0 copper wire

    • $4–$6 per foot, plus installation

 

🛠️ Electric Trench & Conduit

Trenching and conduit installation are based on utility drawings and project manager requirements:

ItemDescriptionEstimated Cost
Conduit3" PVC with mule tape~$20/foot installed
TrenchingStandard dig & backfill~$20/foot depending on soil & length
 
 

🔋 Transformer Costs

Transformer upgrades are handled directly between the homeowner and the power company. These are not included in the electrician’s bid.

 

🏗️ Engineering & Permits

Cities like Phoenix and Glendale require engineered drawings for permit submittals. This typically adds $1,500 to the overall project cost.

 

💬 Free Advice & Estimates

We’re here to make your solar-ready upgrade smooth and affordable. 📞 Call Phil directly at 480-694-6531 to get your quote and talk through your project.

400 amp 2021 code compliant electric panel upgrade Cost

Base 400 amp 2021 code compliant panel upgrade in same loction

☀️ 400-Amp Solar-Ready Panel Upgrade

Expert Installation for Arizona Homes & Businesses

 

💰 Starting Price: $6,200

Upgrading from a 200-amp main panel to a 400-amp solar-ready main meter panel starts at $6,200. These advanced panels are designed to support solar integration without compromising your main power supply.

Key Features:

  • 🔋 Dedicated solar input (up to 200 amps) on the left side

  • Two 200-amp breakers feeding two remote sub panels

  • ➕ Each sub panel adds $1,200 minimum

  • ✅ Required in Glendale and Scottsdale

📐 Glendale requires engineered drawings and permit submittals — typically adds $1,500.

 

🔧 Grounding & Bonding Requirements

Additional electrical work may be needed depending on your property:

  • 🪫 Ground rods: $200 and up

  • 🔗 Bond wire to water/gas lines (if not PEX):

    • 1/0 or 2/0 copper wire

    • $4–$6 per foot, plus installation

 

🛠️ Electric Trench & Conduit

Trenching and conduit installation are based on utility drawings and project manager requirements:

ItemDescriptionEstimated Cost
Conduit3" PVC with mule tape~$20/foot installed
TrenchingStandard dig & backfill~$20/foot depending on soil & length
 
 

🔋 Transformer Costs

Transformer upgrades are handled directly between the homeowner and the power company. These are not included in the electrician’s bid.

 

🏗️ Engineering & Permits

Cities like Phoenix and Glendale require engineered drawings for permit submittals. This typically adds $1,500 to the overall project cost.

 

💬 Free Advice & Estimates

We’re here to make your solar-ready upgrade smooth and affordable. 📞 Call Phil directly at 480-694-6531 to get your quote and talk through your project.

Siemens 400 amp electric panel
ResArizona
200 amp Penel upgrade or replacement
400 am panel grounding and bonding
Electrical trnech and conduit
400 amp Siemens MC4040M1400SD panel
400 amp Siemens MC4040M1400SD panel
ResArizona
ResArizona
Factors Affecting Cost
  • Type of Panel: Modern 200-amp panels are more expensive but offer greater capacity for future needs.
  • Type of Service Supply: If you have an underground service, the cost might be higher than for an overhead service.
  • Materials: The panel itself, breakers, and other materials. The panel and breaker brand can vary.
  • Labor Costs: Our electric service rate is $80 per man our but can run as high as $150.00 from our competitors.
  • Complexity of the Project: Additional work like rewiring, adding outlets, or installing an EV charger can increase the cost.
  • Permitting Fees: Permits will be required for electrical work in Arizona. adding to the overall cost.
When to Consider an Upgrade
  • Older Panel: Panels have a lifespan of 25-40 years, and older panels may not meet current safety codes or handle modern appliances.
  • Frequent Circuit Breaker Trips: If your breakers trip often, it could indicate an overloaded system that needs a more capable panel. But more likely added circuitry.
  • Adding New Appliances: If you plan to install high-power appliances like EV chargers or new HVAC systems, or a instant hot water heater a panel upgrade may be necessary.
Benefits of Upgrading
  • Increased Capacity, More breaker spaces. A 200 or 400 amp panel can handle the demands of modern appliances and devices, future-proofing your home.
  • Upgrading ensures your electrical system meets current safety standards and reduces the risk of electrical fires.
  • A properly sized and upgraded panel can help your home run more efficiently and save energy.
Finding a Qualified Electrician
  • Check for Licensing and Insurance: Ensure the electrician you hire is licensed and insured.
  • Get Multiple Quotes: Compare quotes from different electricians to find the best price and service.
  • Read Reviews: Check online reviews and testimonials to assess the electrician's reputation and experience.
  • Find a specialist in panel upgrades. Experience and knowing the right people will save you money and grief. Someone that does everything usually doesn't do anything good.

PROFESSIONAL PANEL UPGRADES BY THE ELECTRIC PANEL SPECIALISTS

Cost of 400 amp electric panel upgrades

Cost of 400 amp service upgrade?

Get an idea what your panel upgrade

will cost here.

PROFESSIONAL PANEL UPGRADES BY THE ELECTRIC PANEL SPECIALISTS

⚡ Welcome to Quality Contractor Services

Arizona’s Panel Upgrade Experts — Best Service, Best Price

💡 Why We’re Different

At QUALITY CONTRACTOR SERVICES, we take pride in delivering top-tier electrical services at the best available price. Panel upgrades aren’t just part of what we do—they’re all we do.

  • 🛠️ Specialized in electric panel upgrades for over 40 years
  • 🤝 First-name relationships with utility company staff and city inspectors
  • 💸 Low overhead — we don’t spend tens of thousands on advertising like our competitors
  • 📉 That means better pricing for you

🔧 What We Offer

We specialize in 200, 400 amp, and larger panel upgrades for both residential and commercial properties:

  • ✅ Panel installations
  • ✅ Panel repairs
  • ✅ Preventive maintenance
  • ✅ Emergency same-day service available

👷 Our Promise

Our team of expert electricians is committed to:

  • 🧰 High-quality workmanship
  • 💬 Honest, clear communication
  • 🌟 Exceptional customer service
  • 🆓 Free advice and estimates

📞 Contact Us Today

Let us show you why we install more panels than any other electric company in Arizona. Call Phil directly at 480-694-6531 to get your quote and talk through your project.

The Electric Panel Specialists

We've been changing electric panels in Arizona since 1978. Over 45 years since I opened my business replacing electric panels. A lot has changed since then. That's why it's important to contact some one with the experience to know how things were done back then. We've seen all the changes in the equipment as well as the changes of all the codes through the years. Electric vehicle chargers, solar and swimming pool installs comprise a majority of our work. We changed 680 panels in Phoenix, Scottsdale, Mesa, Chandler, Queen Creek, Gilbert, Apache Junction, Sun City, Glendale and the metropolitan area in 2023. It takes experience and common sense to visualize the best method to go from a 1940 electric panel to a modern 200, 400 or solar ready panel. It takes some one with experience to determine which panel is needed for the new insta - hot water heaters, spa's and electric cars as well as solar back feeds. Feel free to pick my brain any time. Advice is free and we are typically hundreds if not thousands less expensive than out competitors. See for yourself. Estimates are also free.

Play Video

How to change a 200 amp overhead electric panel Arizona

Here's a quick video on how to change an electric panel. Questions give me a call at 480-694-6531 Phil. Check out our website RESArizona.com We provide prices to give you an accurate idea of what yu panel might cost to change or view other electric panel upgrades.

400 amp electric panel upgrade with solar ready section

Basic installation of a 400 amp electric panel upgrade Arizona

Play Video

Why Choose Us?

ResArizona

The electric panel is the most important and complicated system in your home. Codes advance every year adding safety to your system. But even more important are the past codes. We have been doing panel changes for over forty years. Long before most current electricians were born. Many things aren't taught these days that were common place in the past and most of todays electricians aren't even aware of such as aluminum wiring, two wire systems, sharing of the neutral wire, discontinued breakers and breakers that have lost there UL listing because of failure. You know as much about these items as most of today's electricians and this is not good. Improper installation of any of these items can create fire hazard or dangerous conditions for the rest of your electrical appliances. Electric panel upgrades in Phoenix Electric panel and Electric panel upgrades in Scottsdale

Most electric companies rarely do panel changes one or two a year. IT'S ALL WE DO. Over 500 last year alone. Some would think that would make us more expensive but it's quite the opposite. Becuase we are independent electrical contractors buy in volume, have the proper tools and materials for any issue we might run into we do the job in half the time of our competition.

Electric Panel Upgrade Specialists

ResArizona

We provide you with a full consultation to explain your available options so that you can choose the scope of work that’s right for your home or business - and your budget.

Flexible
Services

ResArizona

We strive to save you both time and money by combining our deep experience, the highest quality parts and equipment, and our dedication to delivering exceptional service. We will not leave the job until you are satisfied.

Customer Satisfaction Guaranteed

My name is Phil Kroff (480) 694-6531 Master electrician for over forty years and I’ll answer the phone if you call day or night with any questions you might have. I enjoy my job and helping others. Advice is always FREE.

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Affordable Electrical Solutions for Your Home and Business

ResArizona

Residential
Electrical Services

From electrical wiring to lighting installation, we offer a range of services to keep your home's electrical system in top condition. Our team of experienced electricians is here to help you with all your electrical needs.

ResArizona

Commercial
Electrical Services

We offer a variety of electrical services for businesses, including electrical installation, repair, and maintenance for offices, retail stores, and industrial buildings. Our electricians can help keep your business running smoothly.

ResArizona

Electrical
Safety Inspections

Our team of electricians can perform a comprehensive electrical safety inspection of your home or business to ensure that your electrical system is safe and up to code. We can help identify potential hazards and provide solutions to keep you and your property safe.