AC Repair
Window and through-wall AC unit repair covering compressors, capacitors, refrigerant leaks, and fan motors.
- ✓ Diagnosis before any repair begins
- ✓ Experience with older window and PTAC units
Brooklyn's Window & Through-Wall AC Specialists
Air Conditioning Repair for Brooklyn's Older Apartment Buildings
Westmark Air Conditioning repairs and installs window and through-wall AC units across Brooklyn — where a lot of buildings were never built with central air, and options for adding cooling are more limited than in a single-family home.
Serving Bushwick & Surrounding Areas
About Us
Built for Brooklyn's Older Apartment Buildings
Westmark Air Conditioning is based at 9094 Scott Ave in Brooklyn, working in a borough where pre-war and mid-century apartment buildings make up a large share of the housing stock — buildings that were never designed with central air or ductwork.
Owner Corbin Langley built the business around the realities of that housing stock: window and through-wall units are often the only real option, and landlords or co-op boards frequently have their own rules about installation.
What We Do
Our Air Conditioning Repair Services
Window, through-wall, and ductless repair and install work for Brooklyn's apartment buildings.
AC Installation
Window unit, through-wall sleeve, and ductless mini-split installation for apartments without central air.
- ✓ Options for landlord and co-op approval
- ✓ Sizing matched to room and window type
Heating Repair & Installation
Heating system repair for apartment buildings, including radiator-adjacent and electric heat troubleshooting.
- ✓ Experience with older building heating systems
- ✓ Full safety inspection included
Maintenance Plans
Seasonal tune-ups and off-season removal or storage guidance for window units.
System Diagnostics
In-depth troubleshooting for systems with recurring or unexplained issues.
Indoor Air Quality
Filtration options for cleaner indoor air in apartment settings.
What It Costs
Air Conditioning Repair Cost Guide for Brooklyn
General ranges for orientation — every job gets a firm, written price after a free on-site diagnosis, before any work begins.
Diagnostic / Service Call
$79 – $139
Credited toward the repair if you move forward the same visit
Window or Through-Wall Unit Repair
$150 – $400
Compressor, capacitor, and fan motor issues
Refrigerant Leak Repair & Recharge
$250 – $900
Price depends on unit type and refrigerant needed
Through-Wall Sleeve Installation
$600 – $1,500
Includes sleeve, unit, and basic exterior sealing
Ductless Mini-Split Installation
$3,500 – $7,000
Where building rules allow an exterior condenser
Window Unit Installation
$200 – $450
Includes proper bracket and support installation
Ranges reflect typical air conditioning repair costs and vary by system age, access, and parts availability. Not a quote — call (929) 205-6065 or request a free on-site estimate for your exact price.
Why Choose Us
Why Brooklyn Homeowners Trust Westmark Air Conditioning
Apartment Building Experience
Window and through-wall units are a core part of what we do, not an occasional job.
Brooklyn Based
Fast scheduling across Brooklyn's neighborhoods.
Landlord and Co-Op Aware
We can work with building rules and approval paperwork when needed.
Owner-Operated
Corbin Langley is hands-on with how the business runs and how jobs are handled.
A Homeowner's Guide
How to Choose an AC Company for a Brooklyn Apartment
If your building doesn't have central air, not every HVAC company is set up to help. Here's what to check.
Ask About Window and Through-Wall Experience
Ask how much of the company's work is window and through-wall units, not just central systems.
Ask About Landlord or Co-Op Approval
If your building requires approval for exterior units, confirm the company can work within that process.
Confirm Licensing and a Written Price
New York HVAC work should be performed under a licensed contractor, with a firm price in writing before any work starts.
Where We Work
Proudly Serving Bushwick & Nearby Communities
Westmark Air Conditioning serves Brooklyn neighborhoods across the borough.
- Bushwick
- Ridgewood
- Williamsburg
- Bedford-Stuyvesant
- East Williamsburg
- Greenpoint
FAQ
Frequently Asked Questions
Window units, through-wall sleeves, and sometimes ductless mini-splits, depending on what your building and landlord allow. We'll walk through what's realistic for your space.
Bushwick, Ridgewood, Williamsburg, Bedford-Stuyvesant, East Williamsburg, and Greenpoint.
Yes, we can work within your building's approval process when needed.
Yes, including seasonal tune-ups and off-season guidance for window units.
We're open every day from 7:00 AM to 10:00 PM. Call (929) 205-6065 to schedule.
Get In Touch
Request Your Free Quote
Tell us about your apartment and what your building allows — we'll follow up to schedule a visit.
Ready to Get Started?
For AC work in a Brooklyn apartment without central air, Westmark Air Conditioning is ready to help.