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Whole-Home Surge Protection · Colorado
A whole-home surge protective device (SPD) mounts at the panel and limits voltage spikes before they reach your circuits. The current National Electrical Code requires one for new and replaced services in dwellings; it works best paired with plug-in protectors for electronics.
Hail and lightning on the Front Range, heavy snow in the mountains and a fast-growing EV fleet shape most electrical calls.
Across the Mountain West, homes deal with dry air, large temperature swings, wildfire seasons and heavy snow at elevation. Permit offices, utilities and housing stock differ by city, which affects how whole-home surge protection is planned and scheduled. These local guides cover the Colorado cities where we have written specific notes.
On summer afternoons, thunderstorms often build over the foothills and drift across Denver, and nearby strikes can send spikes through power, cable and phone lines into a house. The equipment most often damaged includes furnace and air conditioner control boards, garage door openers and the electronics in newer heat pumps and EV chargers.
Utility: Xcel Energy
Colorado Springs gets frequent summer lightning, and surges regularly damage furnace and AC control boards, garage door openers and electronics. A whole-home surge protective device at the panel, combined with plug-in protection for sensitive electronics, is the standard approach.
Utility: Colorado Springs Utilities (city-owned)
Colorado's Front Range storms bring frequent lightning to Aurora in summer, and surges commonly damage furnace and AC control boards, garage door openers, EV chargers and electronics. A whole-home surge protective device at the panel, combined with plug-in protectors, is the standard approach.
Utility: Xcel Energy
Summer thunderstorms along Colorado's Front Range bring frequent lightning, and surges can damage HVAC equipment, heat pump controls, EV chargers and electronics in Fort Collins homes. A whole-home surge protective device at the panel, combined with plug-in protectors for sensitive devices, is the usual approach.
Utility: Fort Collins Utilities
Summer thunderstorms on the plains bring frequent lightning to Pueblo, and surges commonly damage AC control boards, evaporative cooler controls and electronics. Strong winds that bring down lines can also cause surges when power is restored.
Utility: Black Hills Energy
Summer thunderstorms build over the Flatirons most afternoons, and Boulder homes see frequent lightning, along with surges when power returns after wind-related shutoffs. Homes with heat pumps, solar inverters, batteries and EV chargers have more sensitive electronics to protect.
Utility: Xcel Energy
1. Check grounding
Grounding electrode and bonding are inspected.
2. Install the SPD
The device is mounted on a breaker or lugs with short leads.
3. Verify
Indicator lights and connections are checked.
Electricians set their own prices; local permit fees and utility requirements add to these factors.
Permits come from the city or county where the home is. For example: Denver: Electrical permits in Denver are issued by Community Planning and Development; surrounding cities have their own building departments. Colorado Springs: Electrical permits in Colorado Springs and El Paso County come from the Pikes Peak Regional Building Department, which serves the city and much of the region. Aurora: Electrical permits inside city limits come from the City of Aurora's building division; parts of Aurora lie in Adams and Douglas counties. Fort Collins: Electrical permits inside city limits come from the City of Fort Collins' building services; unincorporated Larimer County has its own. Pueblo: Electrical permits come from the Pueblo Regional Building Department, which serves the city and county. Boulder: Electrical permits come from the City of Boulder's Planning and Development Services; Boulder County handles unincorporated areas.
Denver: Xcel Energy. Colorado Springs: Colorado Springs Utilities (city-owned). Aurora: Xcel Energy. Fort Collins: Fort Collins Utilities. Pueblo: Black Hills Energy. Boulder: Xcel Energy.
No. It handles large surges at the panel; point-of-use protectors handle smaller ones near sensitive electronics.
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