
Signs You Need This Service
- Temperature gauge is running hot or overheating
- Coolant leaking under the vehicle
- Steam coming from under the hood
- Sweet smell from engine area
- Low coolant level repeatedly

What a failing radiator means
A radiator leak shows up as low coolant, a rising temperature gauge, a sweet smell, or a puddle under the front of the vehicle. Plastic tanks crack with age and hoses fail at the connections. Left alone, a leaking radiator turns into an overheating engine, and an overheating engine can warp heads or blow a gasket if it's driven too far on it.
If your engine has already overheated hard, with steam or a burning smell, a tow is often the safer call than driving it to us. We'll tell you honestly if that's what we're seeing over the phone before you decide.
A radiator doesn't fail without warning in most cases. A slow drip under the front bumper, coolant that needs topping off every week, or a heater that's suddenly weaker are all early signs worth calling in before the gauge starts climbing on its own.
Is a new radiator the right fix
This fits a vehicle with a visible leak, a climbing temperature gauge, or a radiator that's simply old enough to be brittle. Included: the new radiator, a coolant flush and refill, and a check of the connecting hoses. Not included: a separate water pump or thermostat, unless we find one of those failing too, which we'll show you before adding it to the job.
Time on site is typically about half a day depending on the vehicle and how the radiator is mounted. We quote the time and price together before we start, so there's no surprise partway through.
Backyard Mobile Repair is veteran owned and rated 4.9 out of 5 across more than 50 Google reviews, and a cold-weather radiator call is exactly the kind of job that built that record, showing up regardless of the hour or the temperature outside.
The mobile visit for radiator replacement in St Paul
Zachery blew a hole in his radiator during a snowstorm with the temperature at 20 degrees. Brent came right away and worked until four in the morning to get him back on the road, right in his own driveway.
We bring coolant, jack stands, and the tools the job needs to wherever the vehicle sits, driveway, lot, or a safe roadside spot. Minnesota winters crack weak radiators overnight, and summer heat pushes the rest of the weak ones over the edge, so we see this repair year round in St Paul.
How It Works
Three simple steps from broken down to back on the road.
Call or Text
Tell us what's going on with your vehicle and where it's located.
We Come to You
Our mobile mechanic arrives at your home, work, or roadside with the right tools and parts.
Fixed On Site
We diagnose, repair, and get you back on the road. No tow, no shop visit.
Why Choose Backyard Mobile Repair?
- We come to your location, no tow truck needed
- Fast response times across St Paul and surrounding areas
- Honest, transparent pricing
- Same-day service available
- Veteran-owned and operated with integrity in every job
4.9 Stars on Google
See what our customers say →
Areas We Serve
We bring mobile mechanic service to your home, work, or parking lot across the greater St Paul metro.
We bring this service to driveways and parking lots across the east metro.
View all service areasQuestions about Radiator Replacement
Also need help with Water Pump Replacement or Thermostat Replacement? We handle that too.
Home · All Services · About Us · St Paul Service Area · Call (651) 888-9595 · Google Reviews ★ 4.9
