H. Daw Service Station
“Staff is always friendly and the work they do is always top notch.”
Best Radiator Repair in Nashua, NH
15 technicians listed · 6 in Nashua · 5 open weekends · 12 rated 4.5+
Data verified October 18, 2026
Chuck's Auto Repair Llc
“I screwed up the appointment time and they still took care of me.”
Lowell Street Automotive
“I've been using Lowell St Auto for over 8 years now always a great experience!!”
Nashua Sunoco Auto Repair
“Nothing but a great experience right from scheduling to the repairs that I needed to have done.”
Scientist Auto Repair LLC
“If you want good, quality work at a fair price, I highly recommend Scientist Auto!”
Aravel Auto Repair
“Great service quick turn around time.”
Listed for drivers in and around Nashua, NH, these 15 shops repair and replace radiators and cooling system parts. What each one says about recoring, warranties and truck work comes from its own website; ratings and quotes come from public reviews.
Area overview: Nashua, NH
Of the 15 technicians we list here, 6 are in Nashua itself and 9 come from towns including Lowell, MA (5, 11 mi), Merrimack (1, 2 mi) and Dracut, MA (1, 9 mi). The technicians on this page are rated from 3.9 to 5.0 across 898 reviews; 9 have 50 or more reviews and 12 are rated 4.5 or higher. When customers rate these technicians on specific qualities, they most often praise quality (89%), professionalism (85%) and value (74%). The topics that come up most in reviews of the technicians on this page are "fair", "honest" and "diagnosis". 5 are open on Saturdays. 4 list staff certifications (ASE) and 10 have a BBB rating of A or A+. Domain records put 5 websites of the technicians on this page at ten or more years old; the oldest dates from 1999. 2 give free estimates; 2 are family- or locally-owned and 5 list coupons or special offers. We have a website on file for 10 of the technicians on this page; 6 publish a contact page and 2 take bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Are the longer-established listed shops a safer bet?
12 of the 15 shops here have been trading ten years or more. Radiator work rewards that, since the places that still recore and pressure test in house tend to be long-established and often run commercial vehicle work alongside cars.
Service Plus Automotive
“Can't go run with having your car serviced with Greg & Steve!”
Middlesex Tire & Auto Center
“They all are knowledgeable and helpful….”
S.w.a.t. Automotive Services Inc
“Always a good experience when going here even when there's a problem with my car.”
Mechanics Direct Inc
“First one using this shop and I'm very happy with their service.”
Ultimate Bimmer Services
“Ultimate Bimmer is the only place I will ever take my car for repairs.”
Lowell Auto Repair
“Over the years, I've had many services done with them and is always satisfied.”
Ed's Auto Services
“I came to them with a laundry list of issues with my car, and they updated me every step of the way, quoting accurate and reasonable prices and explaining everything very clearly before performing any work.”
Mike's Auto Service
“Great expert service accomplished in a timely fashion, at very reasonable price!”
Tonys Auto Cycle Shop
“Super professional and very good prices I recommend it 100%”
Why these companies made our list
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