Expert AC Refrigerant Leak Detection & Repair on Long Island
Fast, accurate leak detection and repair to restore cooling performance, protect your compressor, and extend the life of your air conditioning system.
Summer Peak Season for Refrigerant Leaks
Signs You Have a Refrigerant Leak
Warm Air Coming from Vents
AC blows warm or barely cool air, low refrigerant is one of the top causes
Frozen Evaporator Coil
Ice forms when refrigerant levels are too low to absorb heat
Hissing or Bubbling Sounds
Leak often creates faint hissing noise, bubbling may indicate leak near evaporator coil or line set
AC Running Constantly
System can't reach thermostat setting because there isn't enough refrigerant to remove heat
High Humidity Inside the Home
Low refrigerant reduces moisture removal from air
Water Leaks Near Indoor Unit
When coils freeze and then thaw, excess water can overflow the drain pan
Increased Energy Bills
AC runs longer cycles and uses more power
Poor Cooling in Hot Weather
Low refrigerant makes AC nearly useless during heat waves
Why Refrigerant Leaks Are Serious
Refrigerant is what makes cooling possible. It absorbs heat inside your home and releases it outside. When refrigerant levels drop due to a leak, your air conditioner cannot function properly. Even a small leak causes weak or warm airflow, long cooling cycles, higher electricity bills, frozen evaporator coils, overheating outdoor units, excessive humidity, loud or strained operation, and sudden AC shutdowns. Most importantly: low refrigerant puts massive strain on your compressor—the most expensive part of your AC. If the compressor overheats or fails, replacement can cost $2,000-$3,500 or require full system replacement. This is why refrigerant leaks must be diagnosed and repaired immediately.
Our Refrigerant Leak Detection & Repair Process
When to Repair vs. Replace
Our Simple Process
From call to comfort in 7 easy steps
Full System Evaluation
Refrigerant pressure testing, temperature differential measurements, visual coil inspection, indoor/outdoor unit assessment
Electronic Leak Detection
Commercial-grade detectors pinpoint exact leak location in line sets, valves, coils, and connections
UV Dye Testing (Optional)
For hard-to-find leaks, we inject UV dye and use specialized lights to identify the exact location
Nitrogen Pressure Test
Pressurize system to track pressure loss and confirm leak location and severity
Professional Repair
Brazing, line set replacement, valve replacement, or coil repair using manufacturer-approved materials
Vacuum & Recharge
Deep vacuum to remove air and moisture, then recharge to exact manufacturer specifications
Performance Testing
Verify temperature split, pressures, airflow, and overall cooling strength before completion
Types of Systems We Install
Corroded Copper Lines
Over time, copper lines corrode due to formaldehyde in air, chemical exposure, moisture, environmental contaminants, creating small "pinhole leaks"
Damaged Line Set
Refrigerant line set damaged by construction work, rodents chewing insulation, physical impact, aging insulation, cracks in tubing
Worn Schrader Valves
Valves where refrigerant is added/removed can loosen or crack
Loose or Improper Connections
Poor installation causes loose fittings or poorly sealed connections that slowly release refrigerant
Evaporator Coil Leaks
Indoor coil especially prone to corrosion in older systems (symptoms: weak cooling, ice buildup, frequent refrigerant loss)
Condenser Coil Damage
Outdoor coils damaged by weather, debris, pets, corrosion
Factory Defects
Rare but possible, especially in lower-end equipment
Why Choose Home+ Air & Heat
Licensed, Certified HVAC Technicians
Our team has extensive experience in refrigerant leak detection and repair
Industry-Grade Leak Detection Tools
Electronic detectors, UV dye systems, nitrogen pressure testing equipment
Accurate Diagnostics — No Guesswork
We find the exact leak location before recommending repair options
Honest Pricing and Clear Recommendations
Transparent pricing with repair vs. replacement guidance when needed
Same-Day Service Availability
Fast response to protect your compressor and restore cooling quickly
Coil and Line Set Replacement Expertise
Complete repair capabilities for all types of refrigerant leaks
Guaranteed Workmanship
All repairs backed by our satisfaction guarantee
Transparent Pricing
No fees. No surprises. Just honest service.
Leak Detection Services
Depends on method: electronic, dye, or nitrogen
- Electronic leak detection
- UV dye testing (if needed)
- Nitrogen pressure test
- Complete system evaluation
- Detailed diagnosis report
Minor Repairs
Valves, fittings, small brazed joints
- Schrader valve replacement
- Connection repair
- Small joint brazing
- System recharge
- Performance testing
Line Set Repairs
Depends on location and accessibility
- Line set brazing
- Partial line replacement
- Insulation repair
- System recharge
- Leak verification test
Major Repairs & Replacement
Line set replacement, coil replacement
- Complete line set replacement
- Evaporator coil replacement
- Condenser coil replacement
- Full system recharge
- Extended warranty available
We never add refrigerant without repairing the leak. R-22 (Freon) systems have discontinued refrigerant with extremely high prices - replacement may be more cost-effective.
Flexible Financing Available
Don't let budget concerns delay your comfort. We offer flexible financing options through Synchrony Bank to make upgrading your system affordable with low monthly payments.
Save with Home+ Membership
Starting at $24.99/month — 2 annual tune-ups, 10% off all services, and priority scheduling.
Own a Commercial Property?
Business+ plans start at $499/year — includes 1 unit · 2 tune-ups/yr, 10% off all services, and priority scheduling.
Schedule Refrigerant Leak Detection & Repair
If your AC isn't cooling like it used to, is running constantly, or is freezing up, don't wait. Refrigerant leaks get worse every day and put your entire system at risk. Our certified technicians provide fast, accurate leak diagnosis and professional repair to restore your comfort.
Schedule Leak Repair Today