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Electrical wiring or panel upgrade pros in Diamond Bar
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Excellent workmanship and always on time."
Rosemary L on June 2022
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Excellent workmanship and always on time."
Rosemary L on June 2022
We have over 20 years of experience in the business. Here at DP Electric, Inc., we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Frank and his team were on time and professional. It is obvious they know what they are doing. I highly recommend using DP Electric, Inc."
Anne W on June 2020
We have over 20 years of experience in the business. Here at DP Electric, Inc., we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Frank and his team were on time and professional. It is obvious they know what they are doing. I highly recommend using DP Electric, Inc."
Anne W on June 2020
We work extremely hard for the owner and our company strives to take care of all our client's unique needs and always have the owner's best interest at heart. We are very detailed and meticulous in our work. Our long-term vision is for us to become your go to Contractor with capabilities to do multiple types of projects. Call us today youll be relieved you did. Thank you
We work extremely hard for the owner and our company strives to take care of all our client's unique needs and always have the owner's best interest at heart. We are very detailed and meticulous in our work. Our long-term vision is for us to become your go to Contractor with capabilities to do multiple types of projects. Call us today youll be relieved you did. Thank you
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job
"Honest, they did good work, and I highly recommend them."
Cathy C on February 2020
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job
"Honest, they did good work, and I highly recommend them."
Cathy C on February 2020
We offer over 28 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as generator installs, wiring and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. Were committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"Carlos and his crew are awesome. This is the 2nd project. The first one was a 200 amp panel upgrade for my house. This one was a 100 amp panel clear on the other side of the house and a RV box. They even accommodated a last minute request. Got it all done in one day. "
deon r on April 2025
We offer over 28 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as generator installs, wiring and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. Were committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"Carlos and his crew are awesome. This is the 2nd project. The first one was a 200 amp panel upgrade for my house. This one was a 100 amp panel clear on the other side of the house and a RV box. They even accommodated a last minute request. Got it all done in one day. "
deon r on April 2025
We can take on a wide range of residential and commercial electrical projects, including full installation for additions and remodels, as well as wiring and panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
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Barry B on March 2024
We can take on a wide range of residential and commercial electrical projects, including full installation for additions and remodels, as well as wiring and panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
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Barry B on March 2024
Whether you need electrical services for your Riverside County business or home, Mr. Electric of Ontario has the perfect solution. From installation to upgrades, we do it all. Contact Mr. Electric to make your life easier and your pockets fuller. We take pride in serving local businesses and neighbors. Workmanship guaranteed. Prompt reply to your request. Residential and commercial projects welcome. Call us today @ 951-446-0064.
"The person who installed my ev charger really know what he’s doing and did good job. Great customer service."
Jhunne C on March 2024
Whether you need electrical services for your Riverside County business or home, Mr. Electric of Ontario has the perfect solution. From installation to upgrades, we do it all. Contact Mr. Electric to make your life easier and your pockets fuller. We take pride in serving local businesses and neighbors. Workmanship guaranteed. Prompt reply to your request. Residential and commercial projects welcome. Call us today @ 951-446-0064.
"The person who installed my ev charger really know what he’s doing and did good job. Great customer service."
Jhunne C on March 2024
TRINITY ELECTRIC is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business
"Highly recommend, honest, great quality, very good at what he does, and great with people."
Steve X on April 2020
TRINITY ELECTRIC is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business
"Highly recommend, honest, great quality, very good at what he does, and great with people."
Steve X on April 2020
We're dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
"I would say this is the BEST SERVICE YOU CAN FIND for HVAC. I had an intermittently functioning heat system where we almost replaced the $300 Next thermostat and ran a 40 foot power wire through the walls, which would have cost quite a bit. Instead, a very capable man did the right testing and found we only needed a capacitor and he had one on his truck. He then spent another hour removing the dirty fan and cleaning the whole system with Shopvac and garden hose. We'd been breathing all this dusty air and did not know it. They came the day we called and everything was handled expertly after two weeks of problems with heat and incorrect solutions suggested. Highly recommended and I will save their number!"
PRESTON B on March 2024
We're dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
"I would say this is the BEST SERVICE YOU CAN FIND for HVAC. I had an intermittently functioning heat system where we almost replaced the $300 Next thermostat and ran a 40 foot power wire through the walls, which would have cost quite a bit. Instead, a very capable man did the right testing and found we only needed a capacitor and he had one on his truck. He then spent another hour removing the dirty fan and cleaning the whole system with Shopvac and garden hose. We'd been breathing all this dusty air and did not know it. They came the day we called and everything was handled expertly after two weeks of problems with heat and incorrect solutions suggested. Highly recommended and I will save their number!"
PRESTON B on March 2024
State certified electrician & Electrical License Contractor with fair pricing.I take pride in my craftsmanship and hold high standard of code compliance. I want my clients to enjoy all the amenities that technology has gifted us with by making sure that the electrical system in your home or business is equipped to take on the load demand. I have a range of experience in residential and commercial electrical services from underground work, ground-up building, load calculation demand, panel upgrade, single line to branch circuitry, lighting control systems, lighting updates, back-up generator systems, electrical vehicle charging station. I provide service calls for EMERGENCY ,troubleshooting & maintenance.
"Great electrician, always on time and works quick and good at troubleshooting."
Sean J on July 2024
State certified electrician & Electrical License Contractor with fair pricing.I take pride in my craftsmanship and hold high standard of code compliance. I want my clients to enjoy all the amenities that technology has gifted us with by making sure that the electrical system in your home or business is equipped to take on the load demand. I have a range of experience in residential and commercial electrical services from underground work, ground-up building, load calculation demand, panel upgrade, single line to branch circuitry, lighting control systems, lighting updates, back-up generator systems, electrical vehicle charging station. I provide service calls for EMERGENCY ,troubleshooting & maintenance.
"Great electrician, always on time and works quick and good at troubleshooting."
Sean J on July 2024
Electrical wiring or panel upgrades FAQs
While homeowners with substantial electrical knowledge might technically attempt a subpanel installation, most local building departments require permits and inspections for this type of work. Professional electricians understand local code requirements, can obtain necessary permits, and ensure the installation meets safety standards. Given the significant safety risks associated with incorrect electrical work, most homeowners benefit from hiring a licensed professional.
A standard subpanel installation takes an average of four to eight hours. This timeframe may extend if you're installing multiple subpanels or adding specialized circuits like those for spa equipment. Factors such as difficult access points, complex wiring paths, or permit processing times can also affect the overall project duration.
Adding a subpanel doesn't directly reduce electricity consumption or lower your utility bills. A subpanel simply redistributes power from your main panel to additional circuits. However, organizing your electrical system more efficiently may help prevent overloaded circuits and the associated problems. For actual cost savings, consider energy-efficient appliances and lighting instead.
The appropriate subpanel size depends on your specific electrical requirements. Consider the number and type of devices you'll be powering, potential future needs, and the capacity of your main electrical panel. An electrician can perform a load calculation to determine the most suitable amperage rating for your situation, ensuring you have adequate power without overpaying for unnecessary capacity.
A main electrical panel connects directly to your utility's power supply and contains your home's primary service disconnect. It distributes electricity throughout your entire house. A subpanel, by contrast, receives power from the main panel and redistributes it to a specific area of your home. Think of the main panel as the primary distribution point and the subpanel as a secondary branch that extends your electrical system's reach.
While electrical upgrades aren't as immediately visible as kitchen or bathroom renovations, they can contribute to your home's functionality and safety. Prospective buyers often appreciate updated electrical systems that can accommodate modern power demands. A properly installed subpanel that provides additional capacity for workshops, home offices, or future expansions could be an attractive feature for certain buyers, though the direct impact on home value varies by market.
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- Electric Vehicle Charger Installation
- Ceiling / Bath Fan Replacement
- Light Fixture Installation
- Smoke Detector Repair
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- Doorbell / Security Camera Replacement
- Power Outlet Repair
- Smoke Detector Replacement
- Ceiling / Bath Fan Installation
- Electrical Item Installation
- Electrical Switches, Outlets & Fixtures - Install or Repair
- Switch Installation
- Light Fixture Replacement
- Electrical for Home Addition or Remodel - Install
- Electric Vehicle Charger Repair
- Ceiling / Bath Fan Repair
- Light Fixture - Install
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