How Often Should AC Be Serviced?

Staying on top of AC maintenance keeps systems efficient and dependable. For most homes, one service a year—ideally in early spring—gets your system ready before summer temperatures rise. Systems in high-demand environments like rentals or business spaces face more wear and tear. These benefit from service twice a year to avoid costly repairs and performance loss.
Key Takeaways
- Book AC maintenance once a year, preferably in early spring, to get ahead of hot weather.
- Service high-use systems—found in rental units, commercial spaces, or aging homes—twice annually to maintain performance.
- Delaying maintenance can drop efficiency by up to 15%, raising power bills and the chance of system failure.
- Look out for warning signs like poor airflow, warm air, odd sounds, and sticky indoor air.
- A complete service includes cleaning the coils, inspecting refrigerant levels, testing airflow, and replacing filters.
How Often Should You Schedule AC Service? Here’s the Straight Answer
In Methuen and across the Northeast, air conditioners work hardest during our hot, humid summers. To keep your system running smoothly and avoid the mid-July nightmare of warm air blowing through your vents, we recommend scheduling AC service once a year. The best time? Early spring—before you even think about turning it on for the season.
For systems that see heavy use—like in restaurants, rental units, older properties, or those running almost year-round—twice-a-year maintenance is smarter. We typically perform those checkups in spring and again in late summer or early fall. This tightens up your system before and after peak demand.
Following annual service schedules isn’t just about avoiding breakdowns. EnergyStar and most AC manufacturers recommend these visits to keep equipment under warranty and prevent performance dips. Sticking to their guidance gives peace of mind and helps you avoid unexpected bills.
If you’ve ever wondered how often to service your AC or what’s considered routine AC tune-up frequency, once annually is the short and honest answer. If your system works harder than most, aim for twice.
What Happens If You Skip It: Real Risks You Can Avoid
It’s easy to let AC service slip off the to-do list, but there’s a real cost in waiting. Skipping a tune-up can drop your AC’s efficiency by 5%–15%. That means higher utility bills and a cooling system that struggles to keep up—especially when the summer heat kicks in hardest.
We’ve seen it firsthand. A recent service call in Andover found a clogged drain pan in a condo unit. Left alone, it would’ve overflowed and caused ceiling damage—not to mention mold growth. A quick spring checkup avoided a major repair and a bigger bill.
Without routine maintenance, the chance of a sudden system failure goes up—especially on high-humidity days when the HVAC techs are already booked solid. That wait can leave your home uncomfortable for days.
These are just a few of the clear benefits of routine AC service: lower bills, less risk, and a system ready when you need it most.
Know the Signs: How to Tell Your AC Needs Service Now
Even if you’ve kept up with yearly maintenance, your AC may still need help between visits. Pay attention to the warning signs. Here’s what to look for:
Common signs AC needs service:
- Warm air blowing from vents, even with the thermostat set low
- Sudden spike in your electricity bill
- Weak airflow or uneven temperatures from room to room
- Odd noises—rattling, buzzing, or hissing
- Unusual smells—musty, burnt, or chemical odors
- Short-cycling (unit turns off and on repeatedly) or constantly running
- Rising indoor humidity levels
These symptoms can mean dirty coils, refrigerant issues, worn-out parts, or airflow blockages. Regular upkeep catches these problems early—before they lead to costly repairs or a total system shutdown.
To understand more about what causes sudden failures, check out this detailed post on what causes an HVAC system to stop working suddenly.
What a Proper AC Service Includes (Without the Jargon)
A full AC service visit isn’t just a quick glance. It’s a focused inspection and tune-up that ensures your cooling system will operate efficiently all season. Here’s what a professional service call typically includes:
- Cleaning indoor and outdoor coils
- Checking refrigerant levels and inspecting for leaks
- Testing electrical connections and safety controls
- Inspecting and tightening belts and moving parts
- Measuring airflow and checking for blocked ducts
- Replacing or cleaning air filters
- Diagnosing early wear on key components, like capacitors and sensors
You won’t hear fancy terms from us—just what’s done and why. A solid service call gives you peace of mind: your AC is clean, safe, efficient, and won’t leave you sweating when it matters most.
We follow a proven HVAC maintenance checklist that covers every detail the right way.
When’s the Best Time to Book? Avoid the Rush and Stay Ahead
The smartest move is to schedule your AC maintenance in spring. That way, your system is ready before June heatwaves and summer scheduling jams hit. It also gives us time to fix any issues—without making you wait during peak season.
In Methuen, North Andover, and nearby areas, the air tends to turn sticky around July. Getting ahead of that curve is key. You avoid long wait times and possible surge pricing due to hot-weather demand.
Running a business? Offices, salons, and restaurants often have higher AC demands. For these systems, we recommend service in both spring and early fall. It helps ensure comfort for clients, employees, and guests.
Following a basic AC maintenance schedule is one of the most effective ways to save money and reduce stress long-term.
Who to Call When It Can’t Wait: Local Help You Can Count On
When your AC stops working in the middle of a 90° day, every minute counts. That’s why we respond fast—no gimmicks, no pushy add-ons. Just honest work, done right.
JP Heating & Cooling Services is the trusted name for AC servicing in Methuen MA and surrounding towns like Haverhill, Salem NH, and North Andover. Whether it’s an annual checkup or urgent repairs, we show up ready to solve the issue on the spot.
Looking for a reliable HVAC company near me in an emergency? Count on us. We offer 24/7 emergency response with no surprise fees.
Need ongoing support or considering starting regular care? Reach out and see how easy it is to get started through our service team. You’re never just another work order—we treat your time and comfort with respect. Help is already on the way.
Frequently Asked Questions
Most residential air conditioners should be serviced once a year. Annual maintenance, typically done in early spring, helps ensure efficient cooling, lower energy bills, and fewer breakdowns during peak summer months. Systems that run heavily or are older may benefit from more frequent checkups.
Yes, servicing an AC twice a year is recommended for high-use systems, such as those in rental properties, commercial spaces, or homes with older equipment. A spring and fall service schedule helps catch wear early, improves reliability, and reduces the risk of mid-season failures.
Skipping regular AC service can reduce efficiency by up to 15%, increase energy costs, and raise the likelihood of unexpected breakdowns. Dirty coils, low refrigerant, or clogged drains can also lead to water damage, poor cooling performance, and shortened system lifespan.
The best time to service an air conditioner is early spring, before heavy summer use begins. This timing allows technicians to identify issues early and helps homeowners avoid long wait times and emergency repairs during heatwaves.
Signs your AC needs service include warm air from vents, weak airflow, unusual noises, musty or burning smells, frequent cycling, or rising indoor humidity. Addressing these symptoms early can prevent more serious damage and costly repairs later.





