Why I Always Service My HVAC in April (And You Should Too)

Every year around mid-June, when Raleigh hits those first 95-degree days, my phone starts ringing off the hook. "My air conditioning stopped working!" they say. "Can you come out today?"

Here's the thing - by the time everyone realizes their AC isn't working, I'm already booked solid for two weeks. And what kills me is that probably 80% of these emergencies could have been prevented with a simple spring check-up.

The $150 Fix vs. The $3,000 Nightmare

Last April, I went out to a house in North Hills for a routine maintenance call. The homeowner mentioned their electric bill had been creeping up, but figured it was normal. When I pulled off the access panel, I found their evaporator coil was completely clogged with dust and pet hair.

Twenty minutes and a good cleaning later, their system was running like new. Total cost: $150.

Compare that to Mrs. Patterson in Garner, who called me in July during that heat wave. Same problem - clogged coil - but by then it had caused her compressor to work so hard that it burned out. New compressor, labor, emergency service fee: $3,200.

Same problem, different timing. That's the difference right there.

What I Check During Spring Maintenance

The Air Filter (Most Important Thing You Can Do Yourself)
I cannot stress this enough - change your filter every 3 months. I use the "flip the calendar" method: January 1st, April 1st, July 1st, October 1st. Set a phone reminder if you have to.

And please, don't buy the cheapest filters. Those $1 filters are basically worthless. Spend $8-12 on a good pleated filter. Your system will thank you.

The Outdoor Unit
Your condenser (the big unit outside) needs room to breathe. I see so many units boxed in by bushes or covered in leaves. Keep at least 2 feet clear on all sides. And that pollen we get in Raleigh every spring? Hose it off your condenser coils - gently though, you don't want to bend the fins.

The Ductwork
Here in the Triangle, most ducts run through crawl spaces or attics. I always check for loose connections, damaged insulation, or signs of moisture. Leaky ducts can increase your energy bills by 30% or more.

Warning Signs Your System Needs Help

Don't wait for a complete breakdown. Call an HVAC tech if you notice:

• Weird sounds - grinding, squealing, or clicking
• Inconsistent temperatures between rooms
• Higher electric bills without changing usage
• The system running constantly but not cooling well
• Musty smells when the AC kicks on

The Raleigh Reality

Our climate is tough on HVAC systems. We go from running heat in February to running AC in April. That constant switching puts stress on components. Plus, our high humidity in summer makes systems work harder to dehumidify, not just cool.

I always tell customers: your HVAC system is like your car. You wouldn't skip oil changes and expect it to run forever, right? Same principle applies here.

When to Call vs. DIY

You can handle: changing filters, keeping the outdoor unit clean, checking that your vents aren't blocked.

Call a professional for: refrigerant issues, electrical problems, strange noises, or if your system is over 10 years old and hasn't been serviced recently.

Trust me - spending $150-200 on spring maintenance beats spending your kid's birthday party weekend dealing with a broken AC. I've seen too many ruined summer plans because folks put off basic maintenance.

Stay cool, Raleigh!