Smoke & CO Alarm Repair in Denver, CO : Jim Needham Heating, Cooling, Plumbing, Drain & Electrical

Alarms that aren’t working properly create a dangerous false sense of security—and when seconds count, every alert matters. Jim Needham Heating, Cooling, Plumbing, Drain & Electrical provides expert repair for both smoke and carbon monoxide detectors across Denver. We troubleshoot unresponsive units, fix power or wiring problems, and test devices for proper function before calling the job done. Whether your alarms are chirping without cause, failing to reset, or showing no signs of life at all, we’ll quickly determine the issue and resolve it. The goal is simple: restore protection, fast—and make sure your system is fully ready the moment it’s needed.

What Problems Can Signal a Malfunction in Detection Devices?

Even high-quality alarms aren’t immune to wear, damage, or connection issues. Small warning signs—like random chirping or a failed test—can point to bigger problems hidden in your system. We take these signs seriously and dig into the real cause, so you’re not left with silent equipment during an emergency.

Common symptoms that indicate a repair is needed:

Constant beeping despite new batteries

No response when test buttons are pressed

Frequent nuisance alerts with no clear cause

Power loss in hardwired units

Flickering or missing indicator lights

Interconnected systems not triggering together

Smoke or CO systems triggering during normal appliance use

Old units that pass visual inspection but fail diagnostics

Once we complete repairs, we test every connected unit to confirm it’s not just fixed—but working as intended. It’s the kind of behind-the-scenes detail that keeps your home safer without drawing attention until it’s needed.

Can interconnected alarms be repaired, or do they all need to be replaced?

In many cases, individual alarms within an interconnected system can be repaired or swapped out without replacing the whole setup. We isolate the faulty device and verify communication across all remaining units. If the problem is with wiring or the connection hub, we’ll address it directly. The goal is to get the full system working together again—not just one piece.

Why does my alarm keep chirping even after I replace the battery?

A persistent chirp can indicate a deeper problem than just a low battery. It may be a sensor failure, improper installation, or a unit that’s reached its expiration. We’ll determine the exact cause and either repair the device or recommend a proper replacement. Fixing the root issue eliminates the guesswork and restores peace of mind.

How long does it take to repair detection units?

Most service calls are completed in under an hour, depending on the number of devices and type of issue. We come prepared with tools, testers, and replacements so we can resolve issues quickly. After the repair, we run a full function test to confirm your system is back in working order. You’ll know exactly what was fixed and why.