Car A/C not cooling? Free 30-point check, written price before work, warranty on every repair.
Car A/C repair and general service at our workshops in Kallikuppam, Ambattur and Surapet. We measure first, quote in writing, and nothing paid starts until you approve the estimate.
EMI subject to lender approval, applicable terms and eligible services.
Gas filling from ₹1,199. General service from ₹3,599. Final price after the free checkup.
Book a free checkup · Directions: Ambattur or Surapet · Specialist: Compressor Rebuild · Nitrogen Leak Test

What is the car doing?
What you can check for yourself
Two workshops
Kallikuppam, Ambattur and Surapet. Open Monday to Saturday, 9 AM to 8 PM.
Find a workshopMeasured, then quoted
A free 30-point A/C and electrical checkup with a written report, then a written estimate you approve.
How we quoteParts at distributor cost
We show you the parts invoice. Old parts come back to you on request.
What we provideWarranty on replaced parts
10,000 km or 6 months. The exact term is written on your bill. None on gas filling.
Read the warranty
Five steps, in this order, on every job
We measure before we quote and we quote in writing before any paid work starts. See each step in detail
Listen
You tell us the symptom, the car and when it started. We write it down before we touch the car.
Measure
The free 30-point A/C and electrical checkup takes 15 to 35 minutes. We record what the gauges, thermometer and meter show and give you a written report.
Quote in writing
You get a written estimate with parts and labour listed. Nothing paid starts until you approve it.
Repair and show
We do the approved work, charge parts at distributor cost and show you the invoice. Old parts come back to you on request.
Check and follow up
We check the work again before handover and follow up afterwards. Parts we replace carry a warranty of 10,000 km or 6 months; the exact term is on your bill.
Free car A/C checkup
The 30-point A/C and electrical checkup is free, takes 15 to 35 minutes and comes with a written report. Nothing is charged and no work starts without your approval.
Spare parts on Bajaj EMI
EMI subject to lender approval, applicable terms and eligible services.
Mon to Sat, 9 AM to 8 PM. Sunday closed.
Bajaj Finserv EMI on car A/C repair and service
A big repair does not have to wait for next month. After the free 30-point checkup and your written estimate, you can pay through Bajaj Finserv EMI and split the bill into monthly instalments. Bajaj Finserv EMI is available on bills of ₹10,000 or more, subject to lender approval, and covers car A/C service, A/C repair, selected car services and eligible parts.
EMI subject to lender approval, applicable terms and eligible services. Bajaj Finserv is the lender, not GM Car A/C Service.
Serving north and west Chennai from Ambattur and Surapet
The main workshop is at 12A, Gangai Amman Koil St, Kallikuppam, Ambattur. Each workshop page lists the areas it serves, with the distance by road and the usual drive time.
Before you book
Is the checkup really free, or is there a diagnosis charge?
The 30-point A/C and electrical checkup is free, with nothing to pay and no obligation to have the work done. We inspect first, explain what we found, and share the estimate before any paid work starts. It takes 15 to 35 minutes on a booked slot and you leave with a written report. Call +91 84280 00085 (Kallikuppam) or +91 88893 60888 (Surapet) to book a slot.
What is the A/C Gas + Airflow Refresh?
Gas filling with a leak check, plus the cabin filter and vent airflow service. What it costs depends on the car: one with front and rear A/C takes more gas, and a cabin filter we have to order for the model costs more than one we stock. The counter confirms the total before the work starts.
How much does car AC gas filling cost in Chennai?
Gas filling starts from ₹1,199. The final figure depends on how much gas has gone, whether there is a leak to repair first, and whether your car has one A/C module or two. We run the free 30-point checkup, then give you the figure in writing before any paid work. Call +91 88893 60888 and we can tell you what your car is likely to need.
Why is my car AC not cooling properly?
Poor car AC cooling can result from low refrigerant, a gas leak, a cabin-filter restriction, compressor, condenser, cooling-coil or electrical faults. GM Car A/C Service diagnoses the fault before recommending repair work. See what causes weak A/C cooling
Is pickup and drop available in Chennai?
Free pick-up and drop within 25 km of our Ambattur and Surapet workshops, on confirmed bookings, subject to slot availability. Call +91 88893 60888 or WhatsApp GM Car A/C Service to confirm availability and timing for your location and service need.
What work does GM Car A/C Service do, and what does it not do?
GM works on car A/C diagnosis and repair for all brands (our main work), general periodic service, and electrical, battery, brake and suspension work. We do not offer breakdown or roadside help, towing, body work or tyres.