Hardwired smoke and carbon monoxide detectors with battery backup provide the most reliable life safety protection available for your home. Unlike battery-only detectors that can fail silently when batteries die, hardwired units receive continuous power from your home's electrical system and include backup batteries that take over automatically during a power outage. Unity Power & Light installs hardwired, interconnected smoke and CO detector systems throughout Aiken, SC and surrounding areas, ensuring every detector is properly placed, wired, and code compliant.
Interconnection is the other critical advantage of hardwired systems. When all detectors are connected by a common wire, triggering any single detector causes every detector in the house to alarm simultaneously. A fire that starts in the basement triggers the alarm in the second-floor bedroom, giving sleeping occupants the warning they need to evacuate. With standalone battery detectors, only the detector closest to the fire sounds -- and if it is two floors away, sleeping occupants may not hear it in time.
SC Code Requirements
South Carolina building code, based on the International Residential Code, establishes specific requirements for smoke and CO detector placement and power source.
Our Installation Process
Assessment
We walk the home to evaluate existing detector locations, identify all code-required positions, determine the best routing for new wiring, and assess attic and wall access. We count the exact number of detectors needed and identify any areas where routing will require drywall access.
Wiring
We run a dedicated circuit from the electrical panel to each detector location using 14/3 cable. The third conductor (red wire) serves as the interconnect wire that links all detectors together. In homes with accessible attics, wiring is typically fished through the ceiling without opening walls. Where attic access is limited, minimal drywall cuts may be needed, and we patch and finish all openings.
Detector Installation
We mount each detector in its code-compliant location, connect the wiring, install the backup battery, and secure the unit to the mounting plate. We use professional-grade detectors from trusted manufacturers that meet current UL listing standards.
Testing and Verification
We test every detector individually and verify interconnection by triggering one detector and confirming that all others alarm simultaneously. We also verify that the backup battery in each unit is functional by testing with the circuit de-energized.
Detector Types We Install
Smoke Detectors
We install photoelectric, ionization, and dual-sensor smoke detectors depending on the location and your preference. Photoelectric detectors are better at detecting smoldering fires and produce fewer cooking-related false alarms. Ionization detectors respond faster to flaming fires. Dual-sensor units provide both technologies in one device for the broadest protection.
CO Detectors
Carbon monoxide detectors are essential in any home with fuel-burning appliances or an attached garage. CO is colorless and odorless, making detectors the only reliable warning of a leak. We install CO detectors in all code-required locations and recommend additional units where fuel-burning appliances are concentrated.
Combination Smoke/CO
Combination units provide both smoke detection and carbon monoxide detection in a single device. These simplify installation in locations where both types of protection are needed and reduce the number of devices mounted on your ceiling while maintaining full coverage.
Brands We Trust
We install detectors from established manufacturers including Kidde, First Alert, and BRK. These brands have long track records of reliability and meet current UL 217 (smoke) and UL 2034 (CO) listing standards. We select the appropriate model for each location based on the detection technology needed and the environmental conditions of the room.
Retrofitting Existing Homes
Many older Aiken homes have battery-only smoke detectors or no detectors at all in some required locations. Retrofitting hardwired detectors into an existing home is a straightforward project that typically takes one day for an average-sized house.
The primary challenge in retrofit installations is routing the wiring without extensive drywall damage. In most homes, we access the attic to run cables above the ceiling, dropping down through small holes at each detector location. For second-floor ceilings in two-story homes, attic access makes the wiring essentially invisible. For first-floor ceilings in two-story homes, we route through interior walls or use other access strategies to minimize finish damage.
After installation, the only visible change is the detector itself on each ceiling. There are no exposed wires, conduits, or raceways. The installation looks exactly like new construction.
Maintenance Reminders
Protect Your Family with Hardwired Detectors
Serving Aiken, SC and surrounding communities including North Augusta, Graniteville, New Ellenton, Jackson, and Clearwater. Professional installation, code compliant, fully interconnected.