Key takeaways
- A surge is a spike of voltage that can arrive from a storm, a lightning strike, or the utility switching the grid, which happens often in Texas.
- A whole-home surge protective device installs at the panel and clamps spikes before they reach your hardwired equipment.
- Power strips only protect what is plugged into them, which leaves out HVAC, appliances, and anything hardwired.
- A panel-mounted device pairs naturally with a panel upgrade and is a small install for a large amount of protection.
Ask most San Antonio homeowners how they protect their electronics from a surge and they will point at a power strip behind the TV. That strip is doing something, but it is protecting a fraction of what matters, and it does nothing at all for the most expensive electrical equipment in your home. In a state where the grid gets stressed and storms roll through hard, that gap is worth closing.
What is a power surge, really?
A surge is a short spike of voltage above the normal level your home runs on. Some surges are large and rare, like a nearby lightning strike. Most are small and frequent, and they come from inside and outside the house: the utility switching loads on the grid, a large motor like your air conditioner cycling on and off, or equipment kicking in next door. Each small spike does a little damage to the sensitive electronics in modern appliances, and it adds up over time.
Why does this matter more in Texas?
Two reasons. First, the weather. Texas gets serious thunderstorms and the lightning that comes with them, and lightning does not have to hit your house to send a surge down the lines into it. Second, the grid. Texans have learned to pay attention to grid events, and the switching and load management that keeps the grid balanced can send spikes into homes. More grid activity means more of those small, cumulative surges.
What does whole-home surge protection actually do?
A whole-home surge protective device is installed at your electrical panel, where power enters the house. When a spike comes down the line, the device diverts the excess voltage to ground before it can travel through your branch circuits. It clamps the surge at the front door instead of letting it reach every outlet, appliance, and hardwired system in the house.
This is the equipment a power strip cannot touch: your HVAC system, your oven and range, your dishwasher, your garage door opener, and the LED drivers in your recessed lighting. We install whole-home surge protection at the panel so all of it sits behind one layer of defense.
Do I still need power strips at my outlets?
A layered approach is best, and the two work together rather than competing. The panel device handles the large spikes and the bulk of the everyday ones before they spread. Quality point-of-use protectors at your desk or media center add a second layer for the most sensitive gear, like computers and home theater equipment. The panel device is the foundation. The strips are the finishing touch.
How much does whole-home surge protection cost in San Antonio?
It is one of the more affordable pieces of electrical protection you can add, because it is a compact install at the panel rather than a project spread across the house. TODO(operator): add your flat-rate install price here, and note the discount for bundling it with a panel upgrade. The value math is straightforward: a single serious surge can take out thousands of dollars of electronics and appliances in an instant, and a whole-home device costs a small fraction of that.
The best time to add one is during a panel upgrade, because the panel is already open and the device goes in with almost no extra labor.
How long does a surge device last?
A surge protective device absorbs energy every time it does its job, so it wears over time and depending on how many hits it takes. Quality units have a status indicator, usually a light, that tells you at a glance whether it is still protecting. When the indicator changes, you replace the module rather than the whole unit. We show you what to watch for so you are never guessing.
We install surge protection across the San Antonio metro, from newer all-electric homes in Cibolo to established homes closer in. Call for a flat-rate quote and protect the equipment a power strip forgets.