Cooling System Inspection
A full pressure test and coolant check to find leaks and overheating causes, with a clear estimate before we start.
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Open 8:00 am until 5:30 pm today
Downtown Cleveland cooling system repair
Your cooling system works year round, keeping your engine from overheating in July traffic and feeding warm air to your heater when lake-effect snow rolls in. When it fails, you can be stranded fast. Our shop in the bottom of the Hamilton Garage at Hamilton and East 12th pressure-tests the whole system, finds coolant leaks, and tells you exactly what needs attention before any work begins.
A green or orange puddle under your car, a rising temperature gauge, or a heater blowing cold usually points to a leaking radiator, a worn water pump, a stuck thermostat or a failing heater core. Our ASE-certified team repairs all of it, from a coolant flush to a full radiator or water pump replacement, and backs qualifying new parts with our Fixed for Life warranty. We fix the cause so you are not chasing the same overheating problem all summer.
What we do
Everything your radiator, heater and cooling system needs under one roof at the base of the Hamilton Garage, from a coolant flush to a full radiator replacement, handled while you work downtown.
A full pressure test and coolant check to find leaks and overheating causes, with a clear estimate before we start.
Schedule online →Leaking or clogged radiator? We repair or replace it with quality parts, and qualifying new parts are covered for life.
Schedule online →We replace worn water pumps and stuck thermostats so coolant flows correctly and your engine holds the right temperature.
Schedule online →Old, dirty coolant causes corrosion and overheating. We flush and refill to the correct spec to protect your engine.
Schedule online →No heat or foggy windows? We diagnose and repair heater cores and controls so you stay warm through Cleveland winters.
Schedule online →We inspect and replace cracked radiator hoses and worn belts before they fail and leave you stranded.
Schedule online →What Cleveland drivers say
Rad Air changed the water pump and thermostat on my Dodge Durango and did an impeccable job! These guys are my go-to for clean, professional work!
Paul and his team did an awesome job. My heat and A/C stopped working because I hit a big pothole, but they fixed it with no problem and I was able to pick it up that same day before I had to go to work. I will definitely be going back and I recommend you do the same.
After being told by multiple shops that I might need an expensive heater core replacement, I came across Rad Air at the 1277 Hamilton location. Paul was honest and professional, properly assessed my van, had it back before the end of the day, and did not even charge me for the diagnosis. No scare tactics and no unnecessary repairs. This is what a 5-star mechanic looks like.
Paul is absolutely amazing. Very responsive to any concerns and great about setting timely appointments. He explains repairs clearly, especially for someone like me who doesn't know a lot about cars, and he is honest about critical repair needs versus repairs that can wait.
They always get work done in a timely manner. Prices are reasonable as well. The manager is very helpful and makes the entire process very easy. Highly recommend coming here!
Paul and the whole team at Rad Air were great! Very easy to work with and extremely responsive and communicative. Their prices are very fair, and I will be going back for all my vehicle needs.
Paul was great! Explained everything that needed and was recommended to be done, called when everything was priced up, and explained it all. Professional and honest. 10/10 will be using his services again.
Fast, efficient and very friendly! I'll definitely be going back.
I am so happy I made the decision to go to Rad Air. Paul's constant communication and customer service is top notch. He called shortly after my drop off, advised me of the problem, gave me pricing and followed through. He went above and beyond. A job well done.
These guys have integrity. They let you know exactly what you need and don't try to upcharge unnecessarily. Would highly recommend.
These guys are the best. Go see them, you won't be disappointed.
Fast service and transparent pricing. Definitely going to be heading back there next time my car needs work!
Meet your shop manager
Regulars ask for Paul by name, and you'll spot him again and again in our Google reviews. He and the ASE-certified team handle everything from a coolant flush to a full radiator or water pump replacement, with straight answers, upfront pricing and no upsell. Stop by the Hamilton Garage and he'll get you taken care of.
Schedule with Paul's teamFind us
We're in the bottom of the Hamilton Garage at the corner of Hamilton and East 12th, with free loaner vehicles and shuttle rides so you're never stranded downtown.
Who we serve
From the Downtown, Ohio City and Tremont core out to Lakewood (44107), Cleveland Heights (44118) and East Cleveland, if you live, work or park anywhere in Cuyahoga County, help with overheating or no heat is only minutes away.
Good to know
Every repair carries our 36-month/36,000-mile parts & labor guarantee, whichever comes first, and qualifying new parts are covered for as long as you own your vehicle. See what's covered →