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2 of these 24 technicians are in Union; the rest are within 25 mi in Newark, East Orange and East Brunswick.
Of the 24 technicians listed here, 2 are in Union itself; the others are in towns including Newark (8), East Orange (6), East Brunswick (2).
Ratings range from 4.3 to 4.9 across 1,760 reviews; 16 technicians have 50 or more reviews; 20 are rated 4.5 or higher.
10 of the 24 technicians have a website on file; 2 publish a contact page; 2 list a public email.
Figures are counted over the technicians on this page from public listings and company websites collected in 2026; distances are straight-line; hours and prices change, so confirm before you visit.
The 24 shops on this page repair and replace radiators and cooling system parts in Union, NJ. What each one says about recoring, warranties and truck work comes from its own website; ratings and quotes come from public reviews.
More urgent than it looks. A seep that leaves a stain in the driveway is a system that cannot hold pressure, and pressure is what stops coolant boiling. Small leaks also fail suddenly when everything is hot and expanded. Topping it up week after week is not maintenance, it is a countdown.
Usually the cooling system, not the heater. A low level, a thermostat stuck open, or a heater core blocked with sediment will all leave you with cold air. It is worth fixing quickly, because that same core sits behind the dash and replacing it is one of the longest jobs in the car.
As a way to reach a shop, sometimes. As a repair, no. The same particles that plug a pinhole in the core also settle in the heater and the narrow passages in the engine, so you can trade a visible leak for a blockage nobody can reach. Tell the shop if you have used it.
2 of the 24 shops are in Union; the others are the closest listed ones within 25 mi and carry their own city. Radiator specialists serve a wide area, so the nearest one may well be a town over.
Excerpts from public reviews of the technicians listed on this page.
