Most dirty power issues I see come from old wiring or big appliances hogging the circuits. We had a job last year where lights flickered and gear just shut down randomly. We fixed it by swapping out the panel wiring and adding whole-house surge protectors. You should really get an electrician to look at your panel first. If you have expensive stuff, grab a power conditioner or UPS. It saves you from frying your electronics later. If you have any questions, feel free to reach out to my personal email
Dirty power is more common in homes than most people realise, especially as households add more electronics, LED lighting, solar systems, and smart devices. The most common causes we see during electrical inspections are poor-quality power supplies, overloaded circuits, ageing switchboards, and large appliances that create electrical noise when they start up, such as air conditioners or pool pumps. Cheap LED drivers and low-quality phone chargers are also frequent culprits because they introduce harmonic distortion into the system. For homeowners, the first step is identifying the symptoms. Flickering lights, buzzing audio equipment, overheating chargers, and electronics failing earlier than expected can all point to power quality issues. The practical solutions usually involve three steps: * Installing surge protection at the switchboard to stabilise incoming power * Using quality power conditioners or filtered power boards for sensitive electronics * Having an electrician assess whether the switchboard or circuits need upgrading In some cases we also install dedicated circuits for sensitive equipment like home offices or media rooms. Cleaning up dirty power not only protects expensive electronics but also improves the overall stability of a home's electrical system.
The useful thing for homeowners to know is that dirty power usually leaves clues. If lights dip when the air conditioner or fridge starts, that suggests a voltage drop under load. If speakers buzz, screens glitch, or devices keep resetting, that points more to electrical noise or unstable supply. Those symptoms matter because they help narrow down whether the problem is tied to one appliance, one circuit, or the home's power more broadly. From there, the fixes are usually practical. A noisy appliance may need to be isolated. A weak connection may need repair. Sensitive electronics may need better protection at the switchboard or on the circuit itself. The point is not to throw random products at the problem. It is to match the fix to the symptom.
Hi Sean, I'm Ashley Kenny, Co-Founder of Heirloom Video Books; after renovating our nearly 100-year-old house and advising homebuyers about inspection clues, I can speak to how homeowners identify and prioritize potential electrical and power-quality problems during inspections and renovations. My strongest contribution is explaining which inspection signs tend to point toward power issues and what practical, non-technical steps homeowners can ask a licensed electrician or home inspector to take. I can also outline useful questions to pose to an inspector and share examples from our renovation that illustrate the inspection process. Best, Ashley Kenny