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Electrical wiring or panel upgrade pros in Danville
With over 20 years of experience in the electrical industry, OSJ ELECTRIC is your industry expert in Contra Costa County. We pride ourselves on our extreme professionalism, attention to detail, and high quality work. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family and locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!
"Very friendly and knowledgeable."
Karen C on November 2022
With over 20 years of experience in the electrical industry, OSJ ELECTRIC is your industry expert in Contra Costa County. We pride ourselves on our extreme professionalism, attention to detail, and high quality work. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family and locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!
"Very friendly and knowledgeable."
Karen C on November 2022
Alrob Building Services, is committed to excellence in 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.
"Absolutely phenomenal service. My first Angie’s Handyman and Danny set the bar very high. Ran into some hiccups due to weird nonstandard preexisting setups and he took everything he encountered on the chin. Danny explained everything he did at every step and proposed creative solutions."
Yanick M on January 2023
Alrob Building Services, is committed to excellence in 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.
"Absolutely phenomenal service. My first Angie’s Handyman and Danny set the bar very high. Ran into some hiccups due to weird nonstandard preexisting setups and he took everything he encountered on the chin. Danny explained everything he did at every step and proposed creative solutions."
Yanick M on January 2023
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!
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!
ED'S ELECTRIC is currently serving Sacramento and the surrounding areas. For a job well done with your residential services, please give us a call today. All estimates are free for perspective customers.
"Eduardo was very professional and helpful! Will definitely call him again when I have another project in mind."
Debbie M on January 2023
ED'S ELECTRIC is currently serving Sacramento and the surrounding areas. For a job well done with your residential services, please give us a call today. All estimates are free for perspective customers.
"Eduardo was very professional and helpful! Will definitely call him again when I have another project in mind."
Debbie M on January 2023
Here at Five-O-Electric, we have over 40 years of experience and we take great pride in our 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 the 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. Give Five-O-Electric a call today, we look forward to working with you!
Here at Five-O-Electric, we have over 40 years of experience and we take great pride in our 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 the 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. Give Five-O-Electric a call today, we look forward to working with you!
We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/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.
"Jesse handled multiple cancellations due to illness on our part. The installation took only 1 hour, and they found a way to make it simple to put the outlet inside my garage. Would hire them again for other electrical projects."
John O on May 2025
We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/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.
"Jesse handled multiple cancellations due to illness on our part. The installation took only 1 hour, and they found a way to make it simple to put the outlet inside my garage. Would hire them again for other electrical projects."
John O on May 2025
Hamblin Electric is a family owned business locally owned and operated in Danville, CA. With over 10 years of combined experience, we are experts in our trade. We take pride in every project we complete and make sure you are always educated on the status of your project. Have an electrical problem? Call us today for a free estimate!
"Josh Hamblin was so helpful for our projects. He was very responsive and communicative, showed up right on time, and was very respectful in my home. He worked expertly and quickly and was transparent about his (reasonably) pricing. Couldn’t ask for better! They will now be our go-tos for electrical work and more."
Chris M on February 2025
Hamblin Electric is a family owned business locally owned and operated in Danville, CA. With over 10 years of combined experience, we are experts in our trade. We take pride in every project we complete and make sure you are always educated on the status of your project. Have an electrical problem? Call us today for a free estimate!
"Josh Hamblin was so helpful for our projects. He was very responsive and communicative, showed up right on time, and was very respectful in my home. He worked expertly and quickly and was transparent about his (reasonably) pricing. Couldn’t ask for better! They will now be our go-tos for electrical work and more."
Chris M on February 2025
Single Line Electric is committed to excellence in 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. 20 years exp
"Installation of an upgraded electrical panel box. Electrician did an excellent job and was very knowledgeable. He was courteous and professional."
Gary G on February 2025
Single Line Electric is committed to excellence in 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. 20 years exp
"Installation of an upgraded electrical panel box. Electrician did an excellent job and was very knowledgeable. He was courteous and professional."
Gary G on February 2025
All types of electrical, Heating, ventilation, and air-conditioning works. include the following: Upgrading Electrical panels. EV chargers, Recess lights, electrical problems repairs, New construction, remodel houses and kitchens, fans, Air conditioning installations, furnace replacements Contractor's license number # 1041021 C10 & c20 Are you considering replacing your old furnace or air-conditioning unit. contact us to give you a competitive quote. license contractor # 1041021 C20
"Rashid was very professional. He always shared progress and was a great communicator. Project was completed within a couple weeks!"
April S on March 2025
All types of electrical, Heating, ventilation, and air-conditioning works. include the following: Upgrading Electrical panels. EV chargers, Recess lights, electrical problems repairs, New construction, remodel houses and kitchens, fans, Air conditioning installations, furnace replacements Contractor's license number # 1041021 C10 & c20 Are you considering replacing your old furnace or air-conditioning unit. contact us to give you a competitive quote. license contractor # 1041021 C20
"Rashid was very professional. He always shared progress and was a great communicator. Project was completed within a couple weeks!"
April S on March 2025
At R & S Electric & Builders, we focus on getting the job done right the first time and we pride ourselves in all of our work. We believe in being proactive when dealing with all of our customers and we never are finished until our customers are fully satisfied. Call us first for a professional job well done.
"Josue,s work was excellent and the work was made on time"
Roman L on April 2025
At R & S Electric & Builders, we focus on getting the job done right the first time and we pride ourselves in all of our work. We believe in being proactive when dealing with all of our customers and we never are finished until our customers are fully satisfied. Call us first for a professional job well done.
"Josue,s work was excellent and the work was made on time"
Roman L on April 2025
Electrical wiring or panel upgrades FAQs
A whole-house surge protector blocks voltage spikes from lightning, grid issues, or even large appliances before they can fry your wiring or electronics. By diverting excess current at the main panel, it shields everything from your HVAC to your phone chargers and can extend the life of pricey appliances. Homeowners in storm-prone regions or with older panels see the biggest payoff, but any home that relies on sensitive electronics benefits.
Most whole-house surge protectors work for two to three years. Low-level spikes—too small to notice—hit your panel every day and slowly wear down the internal components. Once the unit’s capacity is depleted, it can’t prevent a larger surge, so plan to replace it on schedule (or sooner if a major lightning strike occurs) to keep your electronics and HVAC equipment safe.
A surge protector begins guarding your circuits the moment an electrician snaps it into place. Whether the spike originates from a nearby lightning strike or your fridge kicking on, the protector shunts the extra current to ground before it can reach outlets or hard-wired systems, such as your AC. That instant response is why a small upfront cost can save thousands in appliance repairs.
The unit mounts on or next to your main electrical panel. Type 1 models sit on the supply side, catching outside spikes before they hit the breaker. Type 2 devices snap inside the panel and tame surges that start within the house. Either way, placement at the panel lets the protector guard every circuit at once.
Plan to swap the device every three to five years—or sooner if you upgrade your panel, add high-demand appliances, or notice flickering lights and tripped breakers. Relying on a maze of power strips is another red flag that your current setup isn’t keeping up. Replacing the surge protector at these milestones keeps your electrical system on safe footing.
- Circuit Breaker / Electrical Panel Installation
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- Electrical - Multiple Projects
- Electrical Multi-Item Installation
- Doorbell / Security Camera Repair
- Electrical Multi-Item Repair
- Electrical Item Repair
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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
- Lightning Protection - Install or Repair
- Circuit Breaker / Electrical Panel Repair
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- Light Fixture Repair
- Switch Replacement
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