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
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
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!
"Alexis arrived when he said he would. He found the problem quickly and fixed it. He checked to make sure everything was fixed. He was friendly and pleasant. He suggested some updates but was not pushy to have them completed now. I would certainly call him again for future problems"
Bety S on March 2025
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!
"Alexis arrived when he said he would. He found the problem quickly and fixed it. He checked to make sure everything was fixed. He was friendly and pleasant. He suggested some updates but was not pushy to have them completed now. I would certainly call him again for future problems"
Bety S on March 2025
We are 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.
We are 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.
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
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 are an Electrical Contracting Company providing top quality electrical services to South Bay, East Bay, and the Peninsula! David Lee, the owner of Dalcon Electric, started doing electrical work in the San Jose area over 30 years ago. Then, in 1993, he started Dalcon Electric in San Jose. With over 30 years of experience in both residential and commercial work, we take pride in our expertise and professionalism. We always give you a fair price and can often recommend ways to save you money on your electrical job. We are family owned and operated company! We are also licensed, bonded, and insured! Give us a call today! You’ll be in good hands! Ask about our Angie's List coupon and senior discounts. Award winning. Certified Copalum Installers. SPAN Certified Installers.
"Two minutes! Problem solved."
Susan G on March 2025
We are an Electrical Contracting Company providing top quality electrical services to South Bay, East Bay, and the Peninsula! David Lee, the owner of Dalcon Electric, started doing electrical work in the San Jose area over 30 years ago. Then, in 1993, he started Dalcon Electric in San Jose. With over 30 years of experience in both residential and commercial work, we take pride in our expertise and professionalism. We always give you a fair price and can often recommend ways to save you money on your electrical job. We are family owned and operated company! We are also licensed, bonded, and insured! Give us a call today! You’ll be in good hands! Ask about our Angie's List coupon and senior discounts. Award winning. Certified Copalum Installers. SPAN Certified Installers.
"Two minutes! Problem solved."
Susan G on March 2025
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.