Smoke & Carbon Monoxide Detector Installation in New Jersey

Integrated Electrical Solutions installs, replaces and upgrades smoke and carbon monoxide alarms across New Jersey: hardwired interconnected systems, 10-year sealed battery units, combination smoke/CO alarms and smart detectors. 

We also get homes ready for the smoke and CO certificate required when a home is sold or rented. Licensed NJ electrical contractor, License #34EB01852700, based in Jackson Township. For local service, see our Ocean County and Monmouth County smoke detector pages.

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remote smart smoke detector in nj home

With the latest technology, you can also integrate smart smoke detectors for remote monitoring and control. 

Trust our professional installation services to guarantee safety and peace of mind in your New Jersey home.

  10% Discount!

Discount eligible for all ​Military, Senior, Police, Firefighter & Healthcare workers.

What New Jersey Requires

New Jersey's Division of Fire Safety adopted a rule in 2019 requiring 10-year sealed battery smoke alarms wherever a home relies on battery-powered alarms. The sealed battery can't be pulled out when the alarm chirps or the toast burns, which is the most common reason a battery alarm fails. Combination smoke/CO units that run on batteries have to be the 10-year sealed type too.

What your home needs depends on when it was built. Older homes can usually use 10-year sealed battery alarms on each level. Homes built later generally need hardwired, interconnected alarms in specific locations, with sealed battery units on the remaining levels. One rule catches a lot of sellers: municipal resale checklists, such as Sayreville's 2026 requirements, say alarms must be less than 10 years old, and many towns won't let a hardwired alarm be replaced with a battery-only one.

What New Jersey Inspectors Actually Check

Inspectors want a smoke alarm in every bedroom, one outside each sleeping area, and one on every level including the basement. Carbon monoxide alarms belong near sleeping rooms and on each habitable floor. In most sales, renovations and rental turnovers, that means hardwired, interconnected units with battery backup, not a lone 9-volt puck. Combination smoke/CO units are fine in most of those spots. We leave you the paperwork buyers and landlords use for the municipal smoke/CO certificate.

Coastal rentals get extra attention before the season, because expired heads fail the sale inspection.

Why Do Interconnected Alarms Matter?

Discover the True Value of Smoke Detector Services

With interconnected alarms, when one sounds, they all sound. The U.S. Fire Administration recommends interconnected alarms in every bedroom, outside each sleeping area and on every level, and notes that half of home fire deaths happen between 11 p.m. and 7 a.m. Kidde notes that the national fire alarm code has required interconnected alarms in new homes since 1989. Older homes without that wiring can use wireless interconnected alarms instead of opening walls.

Our Smoke & CO Detector Services 

Our Professional Process 

  1. Free Home Assessment — We check existing detectors and recommend the best solution.
  2. Code-Compliant Design — Plan interconnected system per NJ requirements.
  3. Professional Installation — Clean, quiet work with minimal drywall patching.
  4. Testing & Training — Full system test and show you how everything works.
  5. Documentation — Provide proof of compliance for insurance or resale. 

Frequently Asked Questions

How often should smoke and CO detectors be replaced?

Smoke alarms every 10 years. CO alarms usually every 7 to 10 years depending on the model. Check the date on the back.

Does New Jersey require 10-year sealed battery smoke alarms?

Yes, wherever a home relies on battery-powered alarms. Hardwired homes keep hardwired alarms.

Can I replace a hardwired smoke detector with a battery one?

Generally no. Many New Jersey towns fail a resale inspection if a hardwired alarm has been swapped for a battery unit.

Does New Jersey require interconnected smoke detectors?

In newer homes, major renovations and many resale situations, yes. We recommend interconnection in every home.

What do I need for the smoke and CO certificate when I sell?

Working alarms in the right places, less than 10 years old, of the right type for the year your home was built. Your town's fire official issues the certificate. We get the alarms ready and leave you the paperwork.

Do I need a permit?

Not for simple replacements. A new hardwired circuit needs one, and we handle it.

Can you install smart smoke detectors?

Yes, including Kidde, First Alert Onelink and Google Nest Protect.

Are you available for same-day service?

Often. We regularly do same-day or next-day installs.

How We Wire It

On an existing 3-wire interconnect, we swap heads and test that one alarm sets off the whole house. Battery-only houses get a new run and listed heads: photoelectric or combination units, not bargain ionization-only alarms near the kitchen, to avoid burnt-toast nuisance trips. For smart systems we install Kidde, First Alert Onelink, Google Nest Protect, or a Ring listener on a conventional system. Hush buttons and battery backup are standard.

Simple head swaps usually don't need a permit. A new hardwired circuit does, and we pull it.

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Integrated Electrical Solutions

Phone #: (609) 752-6074

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What it costs in New Jersey (2026)

Service Type
Estimated Cost Range
Single Detector Replacement
$199
Full Home Basic Upgrade (6–8 units)
$650 - 1,200
Interconnected Hardwired System$1,250 - 2,500
Smart WiFi Smoke + CO Detectors$1,800 - 3,500
Commercial / Multi-Family Custom Quote

Service calls are $199, including the first 30 minutes of diagnosis. Additional labor is $75 per half hour, and a second electrician adds $55 per hour. We explain any extra charges before work begins. 10% discount for military, seniors, police, firefighters and healthcare workers.

Why Upgrade Your Smoke & CO Detectors? 

We provide comprehensive coverage to enhance the security and well-being of your living space.

Regular inspections and timely replacements ensure your smoke detectors are always in top working condition, offering reliable protection.

Inspections, Installs done by Experts.

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Ready to Protect Your ​H​ome?

Call (609) 752-6074 for a free assessment and quote. Integrated Electrical Solutions, 100 Cedar Swamp Rd, Jackson Township, NJ 08527. Licensed and insured, NJ License #34EB01852700.

Smoke Detector Service Ocean County

Smoke Detector Service Monmouth County