Home|
Surge Protection

Surge Protection Services in San Antonio

Did You See That Light Flicker?

Mister Sparky^® electricians can help protect your home from electric surges and prevent costly and destructive power surges. A power surge occurs when the line voltage goes higher than it is rated for and stays there longer than ten milliseconds. In today’s high-tech world, computerized appliances and electronics can be damaged or destroyed by surges in electrical lines. Every day appliances are zapped by an average of 20 power surges. These surges are power fluctuations that go unnoticed except by your appliances. The end result can shorten appliance lifespan by as much as 30%. That’s like paying full price for an appliance, then getting to use 2/3 of what you paid for.

Two Types of Protection

Point of use surge protectors are designed to protect sensitive electronic equipment and major appliances in the home at their electric source. Point of use suppressors are usually devices that plug into the wall outlet and can handle surges up to 6,000 volts.

A whole-house surge protector is designed to protect your home again transient surges that enter through the home’s electric supply, but does not protect from surges created internally in the home when motors turn on and off. Whole home protectors are devices that are installed at the meter or electrical panel. These devices require the installation by a licensed electrical contractor.

The surge protector attempts to regulate the voltage supplied to an electric device by either blocking or by shorting to ground voltages above a safe threshold.

The Need for a Surge Protector

There are a number of reasons why power quality has become such an important issue. Today’s computer chips are more sensitive to even slight surges, and most homes and offices are using more equipment than ever before. Each time a device is turned on, transient voltages may be generated. Additionally, more microprocessor technology is being used than ever before, in personal computers, TVs, stereos, gaming systems, DVRs, refrigerators, washers, dryers, microwave ovens, dishwashers and just about any electrical device manufactured today.

Internal surges occur when devices with motors (like refrigerators and hair dryers) shut off. The energy these devices were consuming is suddenly redirected elsewhere in the form of excess voltage. Surges can also occur when the power company switches power from one geographic area of the grid to another to meet system demand. And, thunderstorms and lightening are the most dramatic and destructive causes of power line problems and electric surges.

Play It Safe &

Choose Mister Sparky® of San Antonio

100% Satisfaction
Guarantee

You’ll get an extra level of protection and peace of mind with our UWIN Guarantee.
Local Technicians
You Can Trust

All Mister Sparky techs are trained, licensed, insured, and local.
StraightForward
Pricing®

We’ll give you options for your service so you know exactly what you’re getting.
24/7 Emergency
Services

Our electricians are here for you, no matter the time of day…or night!

Mister Sparky mascot holding a clock with a lightning bolt on a red and black background.

Two electricians in uniform smiling in front of a home.

Sparks Fly Between Us and Our Customers

4.8

2932 reviews

4.8

2932 reviews

Sparks Fly Between Us and Our Customers

Read Our Reviews

Allen Aldrete (TRIPE)

We had an emergency situation or subpanel was going out causing the outside breaker to get up to 150 They answered my phone call and they sent Roberto out here who helped us get the stuff we need and the pricing just right and then the journeyman came and installed it all. which they also did an amazing job. Everyone quit this company was amazing and we thank you very much from the bottom of our heart

Ron Heredia

Excellent service and installation of a severely worn out sub panel and checking our oven that caught fire recently. Timothy, Matthew and his helper (sorry forgot your name) were respectful and professional. Very clean work. Also added a surge protector to the main panel. Thank you, well worth the investment.

Darryn Christian

I recently had Mister Sparky San Antonio replace my outside breaker panel and the sub panel located in my garage, and I couldn’t be more impressed or pleased. Matt and Keith worked together seamlessly and exceeded all my expectations. They were not only highly knowledgeable and professional, but also incredibly friendly—I felt like I had known them for years by the end of the day. What stood out most was how they handled unexpected issues in real time, taking the time to explain everything clearly so I understood exactly what was happening. They even went above and beyond their original scope of work—replacing a ceiling fan with a burned-out motor and fixing an improperly installed outdoor light from a previous contractor. It was a truly great experience from start to finish. I wouldn’t hesitate to call on them again for future electrical needs. Highly recommended!

Marco R

I needed a simple receptacle install to mount my LED mirror. Mr. Corey arrived to my house a lot earlier than expected. He was well mannered, knowledgeable, and easy going. Based on his work you could tell that it was professionally done and even cleaned up after himself. I will definitely be using this company so long as Corey works here. Thank you sir!

Julie Healy

I called Mister Sparky to install two pendant lights in my kitchen. Richard Cummings Jr. was my electrician and he did an amazing job. He was efficient, courteous, and extremely knowledgeable. Within minutes, I could tell that I had called the right company. I am very satisfied with my experience, and I would recommend Mr. Cummings and Mister Sparky to anyone. I will definitely be a repeat customer.

Part of the Authority Brands Family

Authority Brands is the leading provider of in-home services, building brands that support the success of franchisees as well as better the lives of the homeowners we serve and the people we employ.