5-star car air conditioning services in Slough
Mark 4 has been a trusted name in Slough since 1970, offering expert car air conditioning services. From repairs to diagnostics, we ensure your vehicle stays cool and comfortable.
Contact us today to discuss your car air conditioning needs!
Why choose Mark 4 for your car air conditioning?
Let’s face it, when your car’s air conditioning isn’t working, it’s more than just an inconvenience—it’s downright uncomfortable. At Mark 4, we’ve been tackling air conditioning issues for over 55 years, right here in Slough. From quick fixes to complete system overhauls, we’ve got the tools, the know-how, and the passion to get the job done. Our team specialises in everything from R12 to R134a conversions to deodorising systems, ensuring your car stays fresh and functional. And with free parking on-site, we make it easy for you to pop in. Take a look at our previous work in our gallery. Ready to get your air con sorted? Give us a call today!
Our car air conditioning services




Air conditioning repairs
We provide comprehensive air conditioning repairs to keep your car cool and comfortable, ensuring optimal performance and efficiency.
Air conditioning regassing
Our regassing services cater to both R134A and 1234YF systems, ensuring your air conditioning runs smoothly and efficiently.
Pollen filter replacement
Breathe easy with our pollen filter replacement service, designed to improve air quality and reduce allergens in your vehicle.
Air conditioning deodorising
Eliminate odours and refresh your car’s air conditioning system with our professional deodorising service.

A legacy of excellence in Slough
Mark 4 has been a cornerstone of the Slough community since 1970, providing reliable car air conditioning services that drivers can count on. We understand the frustration of a malfunctioning air con system, especially during those sweltering summer months. That’s why we’ve dedicated ourselves to offering specialised services like R12 to R134a conversions and pollen filter replacements. Our mission is simple: to keep you cool, comfortable, and confident on the road. So, whether it’s a quick regas or a complete system upgrade, we’re here to help. Call us today and experience the Mark 4 difference.
Established 1970
Many 5-star reviews
F-gas regulated
What our customers say about us
Stay cool with Mark 4
Call us now to book your car air conditioning service. Let’s get your vehicle back to its best!