Our service area includes Burnet, Georgetown, Taylor, Elgin, Bastrop, Lockhart, San Marcos, Wimberley, Blanco, Johnson
City, Round Mountain, Marble Falls, Austin and everywhere in between.
Save Up To 40% On Your Next Project
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Our Customers Comments:

"I highly recommend Guaranteed
Electrical Services to do your
electrical job.  Ron and Tom did a
marvelous job on my services
upgrade.  Absolutely zero
problems with the permit process
and inspection after the work."
Leland
Austin, TX
Many homeowners believe that adequate surge protection begins and ends with plugging their computer into a
power strip. Unfortunately, that's seldom the case. First of all, not all surge protectors live up to their name; some
are little more than glorified extension cords. Second, a surge will follow any wire into a house — phone and
cable lines included — and threaten fax and answering machines, televisions, satellite systems, computers, and
modems. And third, as the owners in the Acton remodel discovered, delicate electronic circuitry has proliferated
throughout our homes, leaving common appliances as vulnerable as computers to the effects of surges.  A
power surge may last for only a few millionths of a second, but at its worst, it carries tens of thousands of volts,
enough to fry circuit boards, crash hard drives, and ruin DVD and home-entertainment systems. Lightning-
induced surges are the most powerful and most feared: A 200,000-amp jolt crashing through a power line will
burn standard 20-amp wiring like a light bulb filament. But a lightning strike has to be less than a mile from the
house to cause harm, and in fact most surge-related damage is not caused by lightning.  Far more common, if
not as dramatic, are surges caused by downed power lines, sudden changes in electricity use by a nearby
factory, or even the cycling on and off of laser printers, electric dryers, air conditioners, refrigerators, and other
energy-sucking devices in the home. The damage inflicted by these minor power fluctuations can be
instantaneous, and may not show up for some time.
The Best Defense
Guarding against surges requires a two-pronged approach: a whole-house suppressor to tame the big,
dangerous power spikes and an individual circuit (or "plug-in") surge suppressor for vulnerable appliances and
electronic devices. Both types essentially act like pressure-relief valves. Normally they just sit there, allowing
electric current to flow through them. But with higher-than-normal voltage, the devices instantly divert excess
voltage to the ground wire. (The best ones react in less than a nanosecond.) As soon as voltage levels return to
normal, the flow of electricity is restored, unless the surge was big enough to melt the fuse built into some units.

Typically, whole-house suppressors are hard-wired to the service panel, a process that takes a licensed
electrician about two hours. Whole-house systems should be rated to stop a
40,000-amp surge, at minimum.
Features to look for include thermal fuses, and lights or alarms that indicate when a device has taken a hit.
Protection for an average house with 200-amp service will run from $266.00 - $500.00 which normally include
the electrician's labor. Separate but smaller whole-house units are recommended for the phone and cable lines.
These protect fax and answering machines, televisions, and modems.  Guaranteed Electrical Services can
provide you with a wide range of Surge Protection devices.
Whole House Surge/Lighting Protection
The information in this page is an excerpt from:
Jim Collins, This Old House magazine, November 2002
Guaranteed Electrical Services has the experience and knowledge to inspect your current electrical panel and
service type to recommend the surge equipment that best suit your needs.
Our installation is covered by our best of industry 5 year transferable warranty with a lifetime product warranty from
the manufacture.  The line of surge protection devices we carry have some of the highest protection ratings in their
class.  For instance, our residential single phase 120 - 240 volt hard wire panel surge protector is rated for a peak
of 150,000 surge amps with a response time of < 5 nanoseconds.  We also provide surge devices for digital and
analog coax along with voice and data situated at the point of entry.
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