Stop Leaks Right at the Source.

 

Stem valves are the tiny valves where refrigerant enters and exits your system — and they’re one of the most common leak points in any car. A worn or faulty Schrader valve can cause your whole system to drain, even after a fresh recharge.

A/C Schrader Valve Replacement (Stem Valves)

A person using red and blue hoses connected to a car engine during a repair or diagnostic procedure.

What We Do:

Identify leaking high/low side stem valves

Carefully remove the old valve cores

Fit high-quality replacements with sealant

Retest system under pressure


Why It Matters:

Leaking valves = wasted refrigerant = wasted money

A fresh recharge won’t last 2 days if your valves are leaking

Replacing valves is cheap and quick, but saves £££ in lost gas


Why Book Now:

This is often overlooked by DIY re-gas kits or general garages. We check these every time — and can swap them on the spot.

Don’t pay for gas twice — fix the valve once.

 💡 Add to your service from just £15 per valve.

(£10 for both valves when booked with our

Major Aircon Service)

Common Signs:

System went cold again just days after last recharge

Hissing noise from the charging ports

Visible oil/dye around the valve areas



A parking lot with three trucks, two of which have their front panels open for maintenance or repair, and a silver car parked in the background under a cloudy sky.