AC Repair Services › Refrigerant Recharge and Leak Repair

Refrigerant Recharge and Leak Repair in Hartford, CT

Low refrigerant almost never happens on its own — the system is a closed loop, so if the charge is down, refrigerant leaked out somewhere. We find where the leak is, repair it, and then recharge to the manufacturer's specified level. Skipping the leak repair and just adding refrigerant is a short-term fix that fails again, usually at the worst time.

Call (860) 200-8934

When to Call

When You Need Refrigerant Recharge and Leak Repair

Your AC blows air but the house never reaches the set temperature.
Ice keeps forming on the copper refrigerant lines running into the house.
You've had refrigerant added before and the problem came back within a season.
The system runs fine in mild weather but struggles when temperatures exceed 85 degrees.
You hear a hissing sound near the outdoor unit or the indoor coil.
A technician told you refrigerant is low but didn't mention finding the leak.

How It Works

Our Process for Refrigerant Recharge and Leak Repair

1

Pressure Test

We attach manifold gauges to read suction and discharge pressures. Abnormally low suction pressure is the clearest sign of refrigerant loss.
2

Leak Search

We use an electronic leak detector and UV dye to locate the leak. Common spots are the evaporator coil, service valve cores, and flare fittings on older systems.
3

Leak Repair

Depending on location, the repair might be tightening a fitting, replacing a valve core, or brazing a coil leak. We tell you which before we do it.
4

System Evacuation

After the repair, we pull a vacuum on the system to remove air and moisture before adding refrigerant. Skipping this step shortens compressor life.
5

Recharge to Spec

We add refrigerant by weight or pressure curves to match the manufacturer's specification for your unit — not an estimate, the actual spec.
6

Performance Verification

We run the system and confirm suction and discharge pressures are in range. We also check supply air temperature to confirm normal cooling is restored.

What's included

Manifold gauge readings on both high and low sides of the system.
Electronic leak detection sweep of coils, lines, and fittings.
Repair of the identified leak point — fitting, valve core, or minor braze.
System evacuation before refrigerant is added.
Refrigerant recharge to manufacturer specification by weight.
Post-charge pressure verification and supply air temperature check.

What's not included

Evaporator coil replacement — if the coil is too corroded to repair, that's a separate job with its own cost.
Line set replacement — severely damaged or corroded copper lines are not part of a standard leak repair.
Refrigerant cost beyond the initial recharge — if a second leak is found later, that's a separate visit.

Real Situations

Common Scenarios in Hartford

A homeowner in East Hartford had refrigerant added by another company last summer, and the AC is already underperforming again this June.

We start with a pressure test to confirm refrigerant is low again, then do a thorough leak search rather than just adding more refrigerant. We find the source, repair it, and recharge correctly. If it leaked back down this fast, there's a real leak point — we find it.

A homeowner in Bloomfield notices ice on the lines coming out of the wall and shuts the system off.

We let the system thaw completely before attaching gauges — testing a frozen system gives bad readings. Once thawed, we check pressures, locate the leak, repair it, and recharge. We also check airflow to make sure a dirty coil isn't contributing to the freeze-up.

A property manager in Hartford's South End has a tenant complaining of poor cooling in a second-floor unit in an older building.

Older Hartford buildings with added-on AC systems often have flare fittings that loosen over time. We inspect the line connections at both the indoor and outdoor units, check for refrigerant loss, and repair any fittings that have worked loose before recharging.

Hartford Context

Why this matters in Hartford

Hartford's older housing stock — particularly triple-deckers and colonials retrofitted with central AC — often has copper line sets and fittings that have been in place for 20 or 30 years. That age, combined with the freeze-thaw cycle the region runs every year, creates conditions where flare fittings loosen and coils develop pinhole leaks. This is a routine problem here, not an unusual one.

Straight Talk

About pricing & scope

Refrigerant type and quantity affect cost, and older systems using R-22 are more expensive to service because that refrigerant is no longer manufactured. If we find a leak at the evaporator coil and it's severely corroded, repair may not hold — we'll tell you that before attempting it. Some situations make coil replacement the more practical path.

What This Fixes