Your old window AC not cooling like it used to? Here’s why a split AC could be your best upgrade

You clean the filters and get it serviced on time, and yet, your window AC still struggles to keep the room cool. The loud humming keeps you up at night, and worst of all, your electricity bill seems to climb higher every month even if you use it less. That’s because, over time, even the most well-maintained window ACs start losing efficiency. Years of continuous use lead to weaker cooling, more noise, and power consumption that burns a hole in your pocket.

But does that mean a split AC is the ultimate solution? Window ACs work well in compact spaces and budget-conscious households. But if your current unit isn’t keeping up with the summer heat, a split AC might offer better cooling, energy savings, and a quieter experience.

So, what’s the right choice for you? Let’s break it down so you can make the smartest upgrade for your home!

Why is your window AC not cooling like it used to?

If your window AC is not cooling like it used to, you’re not alone. Many people face this issue, even after regular servicing. So, what’s going wrong?

Age and wear & tear: Just like any other appliance, ACs don’t last forever. Over time, the compressor and cooling coils lose their efficiency. The refrigerant gas might also leak, reducing cooling power. If your AC is more than 7-10 years old, chances are it’s struggling to keep up with the heat.

Energy consumption: Older window ACs consume more electricity compared to modern models. Their technology isn’t as advanced, so they have to work harder to cool the room, leading to higher electricity bills.

Noise factor: That’s because the compressor and motor wear out over time, making them noisier. It can get annoying, especially at night when all you want is a peaceful sleep.

Maintenance struggles: Servicing your AC can help for a while, but it can’t fix long-term wear and tear. Even with regular cleaning, an old AC will eventually lose its cooling efficiency. You might find yourself calling the technician more often, yet still sweating in the heat.

If your window AC is showing these signs, it might be time to consider an upgrade. But does that mean a split AC is the only solution? Before we move on to that section, here are a few options to consider while buying a split AC.

The best split ACs on Amazon

How is split AC a better choice for your home?

A split AC isn’t just a fancy alternative, it comes with several practical benefits that can make a real difference in your comfort and savings.

Superior cooling: Split ACs are designed to cool larger spaces more efficiently. Whether you have a big bedroom or a spacious living room, they distribute air evenly, ensuring that no corner is left warm.

Energy savings: Worried about high electricity bills? Modern split ACs come with inverter technology, which adjusts cooling based on the room’s temperature. This means they consume less power, reducing your monthly bills. In the long run, a split AC can be more cost-effective despite its higher upfront price.

Quieter Operation: One of the biggest complaints about window ACs is the constant buzzing and rattling. Since a split AC’s compressor is placed outside, you’ll barely hear a sound indoors. If you’re a light sleeper or just want a peaceful and noise-free cooling experience, this is a major plus.

Smart features for extra comfort: Many new split AC models come with Wi-Fi connectivity, allowing you to control the temperature from your phone. Some even have air purification filters, ensuring cleaner indoor air, while others come with auto-adjust technology that adapts cooling based on the temperature outside.

When to consider a window AC?

Not ready to switch to a split AC? In some cases, a window AC is still a good choice! Here’s when it makes sense:

Budget-friendly option: If you’re looking for an affordable cooling solution, a window AC is the way to go. It costs less than a split AC and doesn’t require extra expenses for installation. If you’re not ready for a bigger investment, a window AC can still keep you cool.

Perfect for small rooms: Got a small bedroom, office, or rental apartment? A window AC works just fine for compact spaces. Since it cools a limited area efficiently, you don’t really need a bigger, more expensive AC.

Easier installation: Unlike split ACs, which require drilling walls and setting up an outdoor unit, a window AC is simple to install. If you have a window slot, you’re good to go!

Decent cooling for limited use: If you only use your AC for a few hours a day or during peak summer months, a window AC gets the job done. It may not have fancy features, but for occasional use, it’s a practical and cost-effective choice.

Best window ACs to consider while upgrading!

Window AC vs split AC: Is the higher cost justified?

A split AC costs more upfront, but is it worth it? While window ACs are cheaper, split ACs consume less electricity due to inverter technology, leading to lower monthly bills. Over time, these savings can balance out the higher price.

Maintenance is another factor. Split ACs need professional servicing but less frequently than window ACs, which require regular clean-ups to maintain efficiency.

If you ever plan to sell or upgrade, split ACs have better resale value due to their durability and energy efficiency. So, while the initial cost is higher, a split AC can be a smarter long-term investment if you use AC daily and want lower running costs.

Similar articles for you

Do not turn on your AC this season until you’ve checked off these essential AC maintenance tips

You won't believe how budget friendly these 1.5-ton ACs are on Amazon right now

Split AC vs window AC: Top 10 picks comparing cooling, energy efficiency, installation ease, and overall value

Best window ACs in February 2025: Top 10 air conditioners with low energy consumption

Best split ACs in India in 2025 are here to make your summer season comfortable: Here are our recommendations

Best AC brand in India: Top 10 cooling powerhouses for ultimate comfort and energy savings

Disclaimer: At Livemint, we help you stay up-to-date with the latest trends and products. Mint has an affiliate partnership, so we may get a part of the revenue when you make a purchase. We shall not be liable for any claim under applicable laws, including but not limited to the Consumer Protection Act, 2019, with respect to the products. The products listed in this article are in no particular order of priority.