The best Home Depot air conditioner through wall units for 2024 deliver powerful, energy-efficient cooling with easy DIY installation. Top picks like the Frigidaire Gallery and GE Profile models stand out for their quiet operation, smart controls, and reliable performance in spaces up to 550 sq. ft.—perfect for bedrooms, offices, or additions.

Key Takeaways

• Top Picks: Choose from Home Depot’s most efficient 2024 through-wall ACs.
• Energy Savings: Opt for ENERGY STAR models to cut utility costs.
• Easy Installation: Look for units with included kits for DIY setup.
• Smart Features: Upgrade to Wi-Fi enabled ACs for remote temperature control.
• Quiet Operation: Prioritize low-decibel models for peaceful indoor comfort.
• Warranty Matters: Select brands offering 5+ years of compressor coverage.

Why a Through-the-Wall Air Conditioner Might Be Your Home’s Best Friend

Picture this: It’s a sweltering summer afternoon. The sun beats down, your clothes stick to your skin, and even your ceiling fan feels like it’s just moving hot air around. You’ve tried every trick—ice water, open windows, a portable AC unit—but nothing cools the room like it should. That’s when you start wondering: What if I could just install something permanent, something powerful, something that actually makes a difference?

Enter the Home Depot air conditioner through wall—a game-changer for homes without central AC or rooms that just won’t cool down. Unlike window units, which can be drafty and block your view, through-the-wall air conditioners are sleek, efficient, and built to stay. They’re not just a summer fix; they’re a long-term comfort solution. And thanks to Home Depot’s wide selection, you can find models that fit your space, budget, and energy goals. Whether you’re cooling a studio apartment, a sunroom, or a guest bedroom, a through-the-wall AC could be the upgrade you never knew you needed.

What Is a Through-the-Wall Air Conditioner (And Why Home Depot Is a Great Place to Buy One)

If you’ve ever seen a boxy AC sticking out of a wall instead of a window, you’ve spotted a through-the-wall air conditioner. These units are installed directly into an exterior wall, creating a permanent, weather-tight seal. Unlike window units, they don’t block your view or let in drafts, and they often look more integrated with your home’s design. But what really makes them stand out is their efficiency and performance.

How Through-the-Wall ACs Differ from Window and Portable Units

Let’s break it down:

• Window units are easy to install but can be noisy, block sunlight, and sometimes don’t seal well, leading to energy loss.
• Portable ACs are flexible but often underpowered and require venting through a window, which can be messy and inefficient.
• Through-the-wall ACs offer a permanent solution with better insulation, quieter operation, and higher BTU output—ideal for larger spaces or rooms that get extra hot.

And when it comes to shopping, Home Depot stands out. They carry top brands like Frigidaire, GE, Friedrich, and LG, all with clear specs, real customer reviews, and often professional installation services. Plus, their “buy online, pick up in-store” option makes it easy to see units in person before committing. You’re not just buying a product—you’re getting peace of mind.

Why Home Depot’s Selection Makes a Difference

Not all through-the-wall ACs are created equal. Home Depot’s inventory is carefully curated to meet real-world needs. For example:

• Energy Star-rated models help you save on electricity—especially important if you’re running the AC all day.
• Smart features like Wi-Fi control, voice assistant compatibility (Alexa, Google Assistant), and scheduling let you cool your room before you even get home.
• Multiple sizes and BTU ratings mean you can find one that matches your room size without over- or under-powering it.

And if you’re worried about installation, Home Depot offers professional through-wall AC installation services—a huge plus if you’re not comfortable cutting into your wall or wiring the unit. You can even schedule a free in-home consultation to make sure everything fits perfectly.

Top 5 Home Depot Air Conditioner Through Wall Picks for 2024

After testing, reading hundreds of reviews, and talking to HVAC pros, I’ve narrowed down the best Home Depot air conditioner through wall models for 2024. These picks balance performance, value, and real-world usability. No fluff—just honest insights.

1. Frigidaire FHWW103WC1 – Best Overall for Value and Performance

This 10,000 BTU model is a fan favorite—and for good reason. It cools rooms up to 450 sq. ft. (think a large living room or master bedroom) and comes with a 24-hour timer, sleep mode, and remote control. The Energy Star rating means it’s efficient, and the washable air filter is a nice touch for allergy sufferers.

• Pros: Quiet (52 dB), easy to install, excellent customer reviews (4.7/5), Energy Star certified.
• Cons: No Wi-Fi or smart features—so if you want app control, look elsewhere.

Perfect for: Homeowners who want reliable, no-fuss cooling without breaking the bank. Priced around $450, it’s one of the best Home Depot air conditioner through wall deals you’ll find.

2. GE AHEK08LZ – Best for Smart Homes and Tech Lovers

If you love controlling your home from your phone, this 8,000 BTU model is for you. It connects to Wi-Fi, works with Alexa and Google Assistant, and even has a mobile app for remote control. It’s ideal for rooms up to 350 sq. ft.—great for bedrooms or home offices.

• Pros: Smart features, quiet operation, Energy Star rated, easy setup with the app.
• Cons: Slightly higher price (~$520), and the app can be glitchy during peak usage.

Perfect for: Tech-savvy users who want to turn on the AC from their phone before walking in the door. It’s a standout among Home Depot air conditioner through wall smart units.

3. Friedrich Kuhl+ KCH12A10A – Best for Large Rooms and Commercial Use

Need serious cooling? This 12,000 BTU beast handles rooms up to 550 sq. ft. and comes with a built-in heater—yes, a heater! That makes it a year-round climate solution. It’s also commercial-grade, with a rugged design and advanced air filtration.

• Pros: Dual cooling/heating, ultra-quiet (48 dB), durable build, Energy Star certified.
• Cons: Expensive (~$750), requires professional installation due to weight and wiring needs.

Perfect for: Large sunrooms, home gyms, or small offices where you need consistent, powerful climate control. A premium pick, but worth it for the performance.

4. LG LW1017IVSM – Best for Energy Efficiency and Quiet Operation

This 10,000 BTU model is a quiet achiever. At just 49 dB, it’s one of the quietest on the market. It also has LG’s SmartThinQ app for remote control and scheduling, plus a dual inverter compressor that saves energy by adjusting output based on room conditions.

• Pros: Super quiet, Energy Star certified, smart features, easy-to-clean filter.
• Cons: App setup can be tricky for non-tech users, and the remote is basic.

Perfect for: Bedrooms or nurseries where noise matters. It’s a top-tier Home Depot air conditioner through wall choice for light sleepers.

5. Midea U-Shaped – Best for Retrofit and Easy Installation

Okay, this one’s a bit different—it’s technically a U-shaped window AC, but it installs through a wall sleeve (sold separately). The genius? It opens like a door, making filter changes and cleaning a breeze. It also has Wi-Fi, Alexa compatibility, and 10,000 BTU output.

• Pros: Unique design, easy maintenance, smart features, Energy Star rated.
• Cons: Requires a wall sleeve (~$100 extra), not as sleek as built-in models.

Perfect for: Renters or homeowners who want the benefits of a through-wall AC without a full permanent install. A smart compromise in the Home Depot air conditioner through wall category.

How to Choose the Right Through-the-Wall AC for Your Space

Buying an AC isn’t just about picking the highest BTU number. A few key factors can make or break your comfort—and your energy bill.

1. Match BTU to Room Size (Don’t Over- or Under-Power)

BTU (British Thermal Units) measures cooling power. Too low? Your room stays hot. Too high? The AC cycles on and off too fast, wasting energy and not removing humidity properly.

Here’s a quick guide:

• 300–450 sq. ft. → 8,000–10,000 BTU
• 450–550 sq. ft. → 10,000–12,000 BTU
• 550–700 sq. ft. → 12,000–14,000 BTU

Pro tip: If your room gets direct sunlight, is poorly insulated, or has high ceilings, add 10% more BTU. For kitchens or rooms with lots of electronics, add 4,000 BTU.

2. Check the Wall Sleeve and Installation Requirements

Most through-the-wall ACs require a wall sleeve—a metal box that fits into the wall opening. Some models come with one; others sell it separately. Make sure:

• The sleeve matches your wall thickness (usually 6–8 inches).
• You have access to an electrical outlet (115V or 230V—check the unit’s specs).
• The wall is structurally sound and not near plumbing or wiring.

Home Depot often sells kits that include the AC + sleeve + installation hardware, which can save you time and hassle.

3. Look for Energy Efficiency and Smart Features

An Energy Star-rated AC uses up to 15% less energy than non-certified models. Over time, that adds up—especially in hot climates. Look for:

• CEER (Combined Energy Efficiency Ratio) – higher is better (10+ is good).
• Smart thermostats or app control – lets you set schedules and avoid cooling an empty room.
• Sleep mode – gradually adjusts temperature overnight for comfort and savings.

4. Consider Noise Levels (Especially for Bedrooms)

Noise is measured in decibels (dB). For reference:

• 50 dB = quiet conversation
• 60 dB = normal TV volume
• 70 dB = vacuum cleaner

If you’re installing in a bedroom, aim for 50–55 dB. The LG LW1017IVSM and Friedrich Kuhl+ are excellent quiet options.

Installation Tips: DIY vs. Professional Help (When to Call Home Depot’s Pros)

Installing a through-the-wall AC isn’t rocket science—but it’s not a 10-minute job either. Let’s talk about your options.

DIY Installation: What You Need to Know

If you’re handy and your wall is straightforward, you can install it yourself. Here’s what it takes:

• Tools: Drill, level, tape measure, saw (for cutting the hole), caulk gun.
• Steps:
  1. Mark and cut a hole in the exterior wall (size depends on the sleeve).
  2. Insert the wall sleeve and secure it with screws.
  3. Seal around the sleeve with exterior-grade caulk to prevent leaks.
  4. Slide the AC unit into the sleeve, plug it in, and test.
• Time: 2–4 hours, depending on your skills.

Watch out: Cutting into an exterior wall can be risky. If you hit wiring, plumbing, or insulation, you could create bigger problems. Also, improper sealing leads to air leaks and higher energy bills.

When to Hire a Pro (Home Depot’s Installation Services)

Home Depot offers through-wall AC installation starting around $200–$400, depending on your location and wall type. It’s worth it if:

• You’re not comfortable cutting into walls or working with electrical.
• Your wall is brick, stucco, or concrete (harder to cut).
• You need a 230V electrical line installed (requires an electrician).
• You want a perfect, weather-tight seal and peace of mind.

Real talk: One installer I spoke with said, “Most DIYers get the AC in, but forget to seal it properly. That’s when you get drafts, bugs, and high bills.” A pro does it right the first time.

Maintaining Your Through-the-Wall AC: Simple Steps to Keep It Running Smoothly

A well-maintained AC lasts longer, cools better, and uses less energy. Here’s how to keep yours in top shape.

1. Clean or Replace the Air Filter Every 1–2 Months

A dirty filter blocks airflow, making the AC work harder. Most through-wall units have a washable filter—just rinse it with water, let it dry, and pop it back in. Do this every 4–6 weeks during heavy use.

2. Inspect and Clean the Condenser Coils Annually

The coils on the outside part of the unit collect dust and debris. Turn off the AC, use a soft brush to clean the fins, and rinse with a garden hose (gently!). Avoid bending the fins—they’re delicate.

3. Check for Leaks and Seal Gaps

Once a year, check around the wall sleeve for gaps or cracks. Use exterior-grade caulk to seal any openings. This keeps hot air out and cool air in.

4. Store Properly Off-Season (If You Don’t Heat With It)

If your AC doesn’t have a heater, cover the exterior part in winter to protect it from snow and ice. Some people use a custom cover; others just use a tarp (secure it well!).

Bonus tip: Run the AC on “fan only” mode for a few minutes after turning it off in summer. This helps dry out the unit and prevents mold.

Model	BTU	Room Size	Smart Features	Noise Level (dB)	Price (Approx.)
Frigidaire FHWW103WC1	10,000	Up to 450 sq. ft.	No	52	$450
GE AHEK08LZ	8,000	Up to 350 sq. ft.	Yes (Wi-Fi, Alexa)	51	$520
Friedrich Kuhl+ KCH12A10A	12,000	Up to 550 sq. ft.	No	48	$750
LG LW1017IVSM	10,000	Up to 450 sq. ft.	Yes (Wi-Fi, SmartThinQ)	49	$580
Midea U-Shaped	10,000	Up to 450 sq. ft.	Yes (Wi-Fi, Alexa)	50	$480 (+ sleeve)

Final Thoughts: Is a Through-the-Wall AC Worth It?

After months of research, testing, and talking to real users, I can say this: A Home Depot air conditioner through wall is more than just a cooling device—it’s a lifestyle upgrade. Whether you’re escaping the summer heat, creating a comfortable home office, or just tired of noisy, inefficient window units, these models deliver real results.

They’re not perfect. Installation can be tricky, and some models are pricey. But when you weigh the benefits—permanent placement, better insulation, higher efficiency, and cleaner aesthetics—the trade-offs are worth it. And with Home Depot’s wide selection, expert support, and installation services, you’re not going it alone.

So, if you’re ready to say goodbye to sticky nights and hello to consistent, quiet, efficient cooling, take a look at the models I’ve highlighted. Pick one that fits your room, your budget, and your tech needs. And if you’re unsure? Call Home Depot’s HVAC team. They’ll help you pick the right unit and even install it for you.

Because at the end of the day, comfort shouldn’t be a luxury. It should be as simple as turning on your AC—and feeling that first blast of cool air. That’s the magic of a well-chosen through-the-wall unit. And with the right Home Depot air conditioner through wall pick, you’ll be feeling it all summer long.

Frequently Asked Questions

What are the best Home Depot air conditioner through wall units for 2024?

Top picks include the LG 10,000 BTU Through-the-Wall AC for efficiency, the Frigidaire 12,000 BTU model for large spaces, and the GE Profile 8,000 BTU unit for smart features. These models balance cooling power, energy savings, and user-friendly controls.

Can I install a through-the-wall air conditioner myself?

Yes, if you have basic DIY skills and the proper tools, many Home Depot through-wall ACs come with detailed guides. However, professional installation is recommended for complex wiring or wall modifications to ensure safety and warranty compliance.

Are Home Depot air conditioner through wall units energy efficient?

Many 2024 models boast Energy Star certification and high CEER ratings, like the LG LW1017ERSM (11.2 CEER). Look for units with eco modes and programmable timers to reduce energy use and lower utility bills.

What size through-the-wall AC do I need for my room?

Match the BTU rating to your room size: 8,000 BTU for 300 sq. ft., 10,000–12,000 BTU for 450–550 sq. ft. Home Depot’s product descriptions include room size recommendations to help you choose.

Do through-the-wall ACs require special maintenance?

Clean the washable air filter monthly and clear debris from the exterior unit. Check Home Depot product manuals for specific care tips—most units need annual servicing to maintain peak performance.

Can I use a Home Depot through-the-wall AC in a window?

No, these units are designed specifically for wall installation with sealed sleeves. For windows, opt for a sliding or hung window AC, which Home Depot also offers in similar BTU ranges.