Through-the-Wall AC Services in New York City

New York’s leading provider of through-the-wall air conditioner services. Expert installation. Fast repairs. Easy replacements.

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When it is Needed

Expert In-Wall AC Installation & Repair

To install through-the-wall air conditioners, you need more than basic tools. You need masonry experience and building code knowledge. Our licensed New York technicians have the expertise to get the job done right.

Our complete list of services includes:

  • Wall Sleeve Installation:
    Professional sleeve fitting for a secure and weatherproof foundation that supports your unit.
  • Friedrich Unit Specialist:
    Certified installation and service for all Friedrich models.
  • Window-to-Wall Conversion:
    We convert existing window openings into proper wall installations with full structural support.
  • Brick & Concrete Cut-outs:
    Precision masonry work through brick or concrete walls with minimal disruption.
  • Airtight Sealing & Insulation:
    Every sleeve is sealed and insulated to prevent drafts and energy loss.
  • In Wall AC Replacement:
    Unit swaps. Sleeve inspection. Reseals. We do it all to ensure your new system is ready for use.
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Through-the-wall AC unit repair nyc
Services We Provide

Why NYC Residents Choose Our AC Services

We understand the unique demands of New York buildings. Our company delivers reliable repair and installation across all boroughs. 

Here’s why residents choose us.

Repair or Replace

We diagnose the unit first and give you clear options. Repair when it makes sense. Replace when it’s the better investment.

Measured for a Perfect Fit

If your unit needs replacement, we schedule a service call to take precise measurements and confirm the correct size and fit before installation.

All Major Brands

Daikin, Climate Master, Ice Air, Islandaire, Trane, Simon Aire, Applied Comfort. We service and replace most through-the-wall AC systems.

Complete Installation

From removing the old unit to fitting, sealing, and testing the new one — we handle the entire installation.

Weather-Proof Seals

Industrial-grade flashing. Caulking. We install weatherproof seals to keep the elements outside where they belong.

Same-Day Repair

Get your in-wall air conditioner back up and running quickly with expert diagnostics and repair.

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through-the-wall air conditioning unit replacement
Years Of Experience
We Maintain

Specialized AC Systems We Service

We service a full range of wall unit configurations, including basic residential sleeves and commercial chassis systems.

Standard Wall Sleeve Units

Compatible with most brands. Installed. Sealed. Tested. We ensure that through-the-wall AC repair is done properly for standard wall sleeve units.

Friedrich WallMaster & Uni-Fit

Expert through the wall repair and installation for this top brand’s full sleeve-chassis lineup.

Heat & Cool Wall Units

Enjoy comfort all year round. We install and service wall units for any new unit upgrade.

Integrated Sleeve Chassis

Complete chassis removal and reinstallation for seamless integrated wall systems.

See Our In Wall AC Options

Call us (332) 242-4444

Work Progress

Our Process

We follow an efficient installation process designed specifically for NYC’s building types and regulations. Our team completes every project cleanly and efficiently with zero guesswork and no surprises on the final bill.

through-the-wall air conditioner repair
1.

Precision Wall Cut-out

Exact measurements mark every opening before any through-the-wall air conditioner repair or new installation begins.

Through-the-wall AC unit repair nyc
2.

Sleeve Mounting & Flashing

Our team ensures the sleeve is anchored and flashed for structural support and complete weatherproofing.

Residential through-the-wall air conditioner repair
3.

Unit Calibration

Your AC is tested and calibrated to manufacturer specs before we leave the job.

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Expert through-the-wall air conditioner repair services
through-the-wall air conditioner repair services
Through-the-wall AC unit repair nyc
through-the-wall air conditioning unit replacement

What is the Cost of AC Installation?

Price depends on a variety of factors:

  • Wall material
  • Unit size
  • Sleeve condition 

Contact us to get a transparent estimate tailored to your specific job.

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Customer Reviews & Testimonials

Serving Homeowners Across All NYC Boroughs

Fusion Repair is proud to have happy customers across New York City and the surrounding area. But don’t just take our word for it. See what homeowners say about our service.

Our Industries

In Wall AC Solutions for NYC Property Types

No two buildings are alike in New York. Our team adapts to the unique structural and aesthetic requirements of every property we work in.

Historic Brownstones

Our team works within co-op and landmark guidelines to install wall units without compromising your building’s structure or character. New York brownstones are our specialty.

Single-Family Homes

We install through-the-wall units wherever your home needs reliable and permanent cooling.

Luxury High-Rises

Our team coordinates with building management to meet installation standards. We achieve a clean and finished look inside and out.

Pre-War Apartments

Thick plaster walls. An aging structure that requires special care. These are some of the unique challenges of these apartments. We assess before we cut to ensure code compliance and safety.

Townhouses with Roof Units

Multi-story townhouse installations, including:

  • Sleeve work
  • Drainage
  • Rooftop penetration where required

Local Shops & Eateries

Reduce downtime with fast commercial wall AC installation designed to work around your business hours and building requirements.

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Our Areas

Where We Install Through-the-Wall ACs

Manhattan

Full-service installations from Midtown high-rise buildings to Upper West Side brownstones.

Brooklyn

We serve every neighborhood in Brooklyn.

Jersey City

Reliable service for condos and row homes.

Financial District

Small-sized systems that fit well in urban areas.

Midtown

Efficient cooling and heating systems of high-rise houses.

SoHo

Loft comfort with no ducts.

Queens

Trusted by homeowners and landlords across Jackson Heights and Flushing.

Long Island

Residential installation throughout the area.

Newark (NJ)

Fast and professional installation and repair across the city and surrounding areas.

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Major Industry Brands

Brands We Install and Fix

Whether you’re upgrading to a new model or repairing an old unit, we have the tools and expertise to get the job done.

Daikin, Climate Master, Ice Air, Islandaire, Trane, Simon Aire, Applied Comfort

FAQ

Frequently Asked Questions

No. Window units aren’t designed for enclosed sleeves. A proper through-the-wall system will ensure airflow and safety.

Clogged drains. Improper pitch. These are issues that cause water to back up into the room through the wall. A quick service call usually resolves the problem.

It depends on the unit’s condition, age, and the cost and complexity of the repair. A professional diagnostic test is the best way to make that decision. After inspecting the unit, we can explain the problem and provide repair or replacement options so you can choose what makes the most financial sense.

That depends on your goals and needs. We install units from leading brands that are durable and meet building code requirements.

Talk to an In-Wall Expert
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Get a Perfect Fit. Install Your Wall AC Today

Stop settling for window units that block your view and let in drafts. Our New York team installs through-the-wall air conditioners that are:

  • Clean
  • Permanent
  • Built to last

Our team is available near you with same-day appointments across all boroughs.

Let’s make your space cool and comfortable.

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(332) 242-4444