Multibrand Car AC Workshop in Ambattur
Independent multibrand car A/C, general and electrical workshop in Ambattur, diagnosis first, with estimates explained before approved work.
GM Car A/C Service is a multibrand car service center in Ambattur, Chennai, founded in 2019. The workshop works diagnosis-first, with a written estimate before any work begins. Company services include car AC servicing, car general service, and car electrical service. Address: 12A, Gangai Amman Kovil Street, Kallikuppam, Ambattur, Chennai 600053.
The GM Car A/C Service Journey
From a small Ambattur workshop to diagnosis-first multibrand service
01Our Journey
GM Car A/C Service was founded in 2019 in Kallikuppam, Ambattur, Chennai with a simple vision, to provide honest, affordable, and expert car air conditioning services that customers can truly trust.
What started as a small one-man A/C repair workshop has grown into an independent multibrand A/C, general and electrical service workshop. GM has built its service around diagnosis before replacement and clear estimates before approved work.
G.M. Manigandan is the founder, Managing Director and lead technician of GM Car A/C Service. He works on cars with his own hands, across car A/C, general service, auto electrical and diagnostics, and opened the first workshop in 2019.
He still works on cars. The rule the workshop runs on, find the fault before recommending a part, and put the estimate in the customer's hands before touching anything, is his, and he trains every technician here in it rather than delegating it. He also teaches the 27-day A/C technician course himself, on customer vehicles coming through the same bays. Customers from Ambattur, Avadi, Anna Nagar, Padi, Mogappair and across Chennai deal with the person who diagnoses their car, not a counter between them and him.
02Our Mission
To deliver exceptional car AC repair services at transparent, affordable prices, ensuring every vehicle that leaves our workshop is perfectly cooled and every customer feels valued.
03Our Vision
To be South India's leading multibrand car AC service, training center, setting the standard for quality, honesty, and innovation in the automotive AC industry.
04Our Values
- Honesty & Transparency
- Quality Workmanship
- Customer-First Approach
- Parts matched to the vehicle
- Fair & Upfront Pricing
What We Do
- Car AC Servicing: Cooling diagnosis, gas filling, compressor, leak, filter and AC system service
- Car General Service: Routine service support, inspection, maintenance guidance, pickup and drop
- Car Electrical Service: Battery, alternator, starter, wiring, fuses, relays, sensors and blower repair
- AC Training: Professional auto AC training programs
Key milestones
Key milestones in our journey from a small workshop to Chennai's trusted auto AC center
2019The Beginning
GM Car A/C Service was founded at Kallikuppam, Ambattur, Chennai. Started as a dedicated car AC repair workshop with a passion for quality service and honest pricing.
2020Multibrand Expansion
Expanded to serve all car brands: Maruti Suzuki, Hyundai, Toyota, Honda, Kia, Tata, Mahindra, BMW, Mercedes, Audi and more. Became a true multibrand AC service center.
2021Commercial AC Expansion
Added bus and commercial-vehicle A/C support, with job timing confirmed after diagnosis and parts availability.
2025Training Center
Launched professional auto AC training programs, providing technical training to aspiring mechanics across Tamil Nadu.
Why GM Car A/C ServiceWhy Customers Trust Us
What makes the Ambattur workshop different
Diagnosis Before Replacement
Every job starts with finding the fault, and the estimate is explained before approved work begins.
Vehicle-Matched Parts
We recommend parts matched to the vehicle and the refrigerant specified for its A/C system. Parts, repair scope and any written terms are explained before approved work begins.
Transparent Pricing
No hidden charges. No surprises. We provide upfront pricing with detailed explanations before any work begins, pay only for what you need.
Timing Confirmed After Diagnosis
Repair timing depends on the diagnosed fault, vehicle and parts availability. GM confirms the expected timeline before approved work begins.
All Brands Serviced
Maruti, Hyundai, Toyota, Honda, Kia, Tata, Mahindra, Ford, VW, BMW, Mercedes, Audi, every brand including buses & commercial vehicles.
Google Reviews
Our customers' trust is our greatest achievement, read their stories on our reviews page.
Pick-up and drop
Can't bring your car? We offer complimentary pick-up and drop anywhere in Chennai, on confirmed bookings and subject to slot availability, just call to schedule!
Estimate Before Work Cash · UPI · Card Accepted Timing ConfirmedConvinced? Book Your Service Today
Call to confirm availability · Pickup and drop is subject to service area, confirmed booking and slot availability · Estimate before approved work.
Call +91 84280 00085 WhatsApp for a Free Checkup How We WorkOur 4-Step Process
Simple, transparent, and efficient, from diagnosis to delivery
1Book & Arrive
Call us at +91 84280 00085, WhatsApp, or just drive in. No appointment needed for most services. Walk-ins welcome Mon–Sat 10AM–8PM.
2Diagnose
Our workshop team checks the fault and explains the finding before recommending work.
3Repair & Fix
Parts and refrigerant are matched to the vehicle requirement. The estimate is explained before approved work begins.
4Test & Deliver
Final quality check ensures your AC is cooling perfectly. We hand over your vehicle with maintenance tips for longer AC life.
Our WorkshopInside GM Car A/C Service
A glimpse into our fully-equipped workshop at Kallikuppam, Ambattur
See More
Explore our complete workshop gallery with 16+ photos
View Gallery Our TeamMeet the Experts
Skilled technicians dedicated to keeping your vehicle cool
G.M. Manigandan
Founder, Managing Director & Lead TechnicianHands-on in car A/C, general service, auto electrical work and diagnostics; opened the first workshop in 2019 and still works on customer cars. He trains every technician here in the same rule he started with, diagnose the fault, quote it, and touch nothing before the customer approves, and teaches the 27-day A/C technician course himself.
Senior AC Technician
AC SpecialistExpert in all car AC systems, compressor repair, gas filling, leak detection. Handles luxury brands including BMW, Mercedes & Audi.
Electrical Specialist
Auto ElectricalSpecializes in auto electrical diagnostics and wiring repairs. Advanced diagnostic equipment expertise.
Customer Relations
Service AdvisorYour first point of contact. Handles appointments, explains repairs clearly, and ensures every customer leaves completely satisfied.
Meet Our Team in Person
Free vehicle inspection on your first visit · multibrand service · No diagnosis fee.
Call +91 84280 00085 Book via WhatsApp FOLLOW OUR WORKWatch & Follow GM Car A/C
Real repairs. Real customers. Behind-the-scenes videos & offers.
GM Car A/C Service @gmcaracserviceCar AC repairs, gas filling demos, compressor jobs & auto electrical tips, filmed live at our Ambattur workshop.
Subscribe on YouTube GM Car A/C Service @gmcaracserviceWorkshop photos, before & after cooling shots, offers, and real customer results, follow us for updates from Ambattur, Chennai.
Follow on InstagramSubscribe + Follow & show proof at workshop → ₹200 OFF any service
Find UsVisit Our Workshop
Our Location
12A, Gangai Amman Kovil Street, Kallikuppam, Ambattur, Chennai 600053, Tamil Nadu
Get DirectionsCall or WhatsApp
Hours: Mon – Sat: 10:00 AM – 8:00 PM
Sunday: Closed
Email & Social
Service AreasAreas We Serve in Chennai
Customers from across Chennai trust us for their car AC needs
Ambattur Avadi Anna Nagar Padi Mogappair Thirumangalam Kolathur Villivakkam Korattur Kallikuppam Pattravakkam All ChennaiReady to Get Your AC Fixed?
Book a FREE 30-point A/C and electrical checkup. No obligation. Describe your car AC problem and we'll come back with an honest written quote.
WhatsApp Now Call +91 84280 00085Frequently asked questions
When was GM Car A/C Service established?
GM Car A/C Service was established in 2019 in Ambattur, Chennai. The workshop serves the Chennai community and services vehicles across all brands.
What makes GM Car A/C Service different from other car AC workshops?
GM Car A/C Service is an independent multibrand workshop with diagnosis-first car A/C and electrical service, and a written estimate before any approved work. Pickup and drop is subject to service area, confirmed booking and slot availability.
Which car brands does GM Car A/C Service work on?
GM Car A/C Service is a multibrand workshop that services all major car brands including Maruti Suzuki, Hyundai, Tata, Honda, Toyota, Ford, Volkswagen, Skoda, Kia, MG, Mahindra, Renault, Nissan, Chevrolet, and all other passenger and commercial vehicles.
Who runs GM Car A/C Service?
GM Car A/C Service operates from Ambattur. Founded by G.M. Manigandan, the workshop provides diagnosis-first multibrand car A/C, general and electrical service. To reach GM, call +91 84280 00085 or visit the Kallikuppam workshop.
Where is GM Car AC Service located?
GM Car AC Service is located at 12A, Gangai Amman Kovil Street, Kallikuppam, Ambattur, Chennai 600053, Tamil Nadu. The workshop is easily accessible from Ambattur, Avadi, Anna Nagar, Padi, and Mogappair. Call +91 84280 00085 for directions or to confirm your visit before arriving.
How many cars have you serviced?
We do not publish a vehicle count, because it is not something you can check. What you can check is our Google profile, where customers we have served leave their own accounts of the work. GM Car AC Service works from Kallikuppam, Ambattur, across all major brands including Maruti Suzuki, Hyundai, Toyota, Tata and Kia, call +91 84280 00085 to book an inspection.
Tell us what the car is doing
We will call you back to confirm a slot. Nothing is charged and nothing is booked until we have spoken.
Customer Service · Individual car owners. Mon–Sat 10:00 AM – 8:00 PM, Sunday closed. Prefer not to call? The form takes a minute.
Illustrative image. Not a photograph of GM premises, staff or a customer vehicle.