Best Coolant & Radiator Flush in Seattle, WA

24 mechanics listed · all 24 in Seattle · 4 open weekends · 23 rated 4.5+

Data verified October 16, 2026

Chuck's Auto Repair

Chuck's Auto Repair

(47)
“I have a truck with almost 400,000 miles on it that still runs like a champ thanks in part because of the wonderful care they take in assuring the safety of my vehicle.”
Free consultationCoupons & offersASE certifiedSince 1986
9115 Roosevelt Way NE, Seattle, WA
i
Masters Auto & Tire

Masters Auto & Tire

(49)
“In real time, they'll send you the recommended work, and from there you're able to accept or deny each recommended service based on your budget etc”
36-mo/36k-mi warrantyASE-certified techsSince 1988BBB A+
10633 16th Ave SW, Seattle, WA
i
Eurocar Service

Eurocar Service

(48)
“Always super helpful, explain what work needs to be done and why and provide clear answers to questions including things like “what's the trade off between doing XYZ now vs.”
ASE-certified techsEuropean car specialistLoaner carsSince 1981BBB A+
5821 Roosevelt Way NE, Seattle, WA
i
Budd & Company Automotive

Budd & Company Automotive

(44)
“Today I plan on going to Budd & Company Automotive I've always had bad experiences @ Mechanic shops I just really want to get treated with respect and get a decent price.”
36-mo/36k-mi warrantyCoupons & offersBBB A+Since 1955
800 Rainier Ave S, Seattle, WA
i
Foreign Car Workshop

Foreign Car Workshop

(48)
“I called Foreign Car Workshop, and Ryan immediately walked down the street, diagnosed the problem (oil on the engine air intake sensor), fixed the issue, and wouldn't accept any payment.”
Most makes and models specialistSince 1970Family-ownedBBB A+
4601 37th Ave SW, Seattle, WA
i
Marqueen Garage

Marqueen Garage

(47)
“They were upfront about what I needed and when I would need maintenance in the future and I appreciated that they didn't do any necessary work just to make an extra buck.”
ASE certifiedSince 1981
1506 Queen Anne Ave N, Seattle, WA
i

Listed for drivers in and around Seattle, WA, these 24 shops list coolant flushes and antifreeze service. What each one says about the coolant types it stocks, machine flushes and warranties comes from its own website; ratings and quotes come from public reviews.

Area overview: Seattle, WA

All 24 mechanics we list here are in Seattle itself. The mechanics on this page are rated from 4.4 to 4.9 across 4,196 reviews; 20 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (96%), quality (96%) and value (82%). The topics that come up most in reviews of the mechanics on this page are "diagnosis", "communication" and "honest". 4 are open on Saturdays. The services the mechanics on this page list most often on their websites are cooling system (2), oil changes (2) and steering & suspension (2). 6 list staff certifications (ASE) and 16 have a BBB rating of A or A+. Domain records put 21 websites of the mechanics on this page at ten or more years old; the oldest dates from 1996. 2 offer financing; 1 gives free estimates; 4 are family- or locally-owned and 11 list coupons or special offers. We have a website on file for 23 of the mechanics on this page; 18 publish a contact page; 7 list a public email and 8 take bookings online. We count these figures across the mechanics on this page; hours and prices change, so confirm the details with the mechanic before you visit.

Can I book a coolant change online with shops listed for Seattle?

Online booking is offered by 8 of the 24 shops. Put your engine and the coolant specification in the notes when you book, since the shop needs the right fluid on the shelf before you arrive rather than a universal jug under the counter.

Mose Auto

Mose Auto

(42)
“Owning a car comes with expenses and they can be pretty overwhelming and absolutely financially terrifying yet Mose and her staff were friendly and did some incredible work putting my mind at ease!”
24-mo/24k-mi warrantyBBB A+Since 2021
719 S Myrtle St, Seattle, WA
i
Tom's Automotive

Tom's Automotive

(48)
“I recently had the pleasure of visiting Tom's Automotive for some maintenance work on my Honda, and I must say, I am thoroughly impressed with their service - they were dialed in.”
Coupons & offersASE certifiedSince 1974
3616 SW Oregon St, Seattle, WA
i
Repair Revolution

Repair Revolution

(46)
“They were also able to provide documentation and images (which is standard for them) to help me better understand what was wrong with my car and what was (or wasn't) in need of repair.”
ASE-certified techsSince 2014
2425 6th Ave S, Seattle, WA
i
Arrows Automotive LLC

Arrows Automotive LLC

(45)
“I like the shop very clean friendly service everybody was happy with what they were doing prices were right all the customers were happy I didn't have any service myself but I talked to the other customers and they were all pleased with what was don...”
ASE-certified techsForeign & domestic carsFamily-ownedBBB A+Since 2014
3922 7th Ave S, Seattle, WA
i
High Road Automotive

High Road Automotive

(47)
“George has gone above and beyond consistently, from picking me and my motorcycle up on the side of the road to managing across vendors to get my bike fixed.”
36-mo/36k-mi warrantyASE-certified techsSince 1984Coupons & offersFamily-owned
1531 Leary Wy NW, Seattle, WA
i
Matt's Greenwood Auto Care

Matt's Greenwood Auto Care

(47)
“Sedate your local annual status antics+rattlers Bitchim ijops to showa cow chow much Disintegration is necessary at all c levels and lenien c letter or acceptability even with out any kind of compromise and disrespected as null, void, like uhhhh, me!”
Japanese car repair specialistSince 1998ASE certified
7900 Greenwood Ave N, Seattle, WA
i
Loyal Automotive Inc.

Loyal Automotive Inc.

(47)
“I locked myself out of my car just a few blocks away from Loyal Automotive and they provided immediate and extra kind service to get me back on the road asap.”
ASE-certified techsBBB A+Since 2014
7724 24th Ave NW, Seattle, WA
i
Fine Tuning

Fine Tuning

(32)
“I haven't had the opportunity to speak to most anyone else at the shop, but Chris I can tell you is top notch and 99 times out of 100, pretty dang spot on with his train of thought as far as repairs go.”
Free consultationEuropean car specialistSince 2003BBB A+
14101 Aurora Ave N B, Seattle, WA
i
Scott Sherman Auto Care

Scott Sherman Auto Care

(49)
“I went in with a mysterious issue with my car that they were able to help me troubleshoot (after the dealership had happily taken my money to find nothing wrong but no explanation).”
Coupons & offersSince 2007
9234 Greenwood Ave N, Seattle, WA
i
Aamco Transmissions & Total Car Care

Aamco Transmissions & Total Car Care

(44)
“Chris was very helpful, they kept my broken down car (it was not worth it to repair) for close to a week until it was able to be picked up for donation.”
ASE-certified techsFree checkSince 2013Locally owned
2107 23rd Ave S, Seattle, WA
i
Greg's Japanese Auto

Greg's Japanese Auto

(45)
“I have been a driver for decades & owned quite a few Japanese cars; this is the best service & most honest i ever had - i knew my Honda had some front body damage & that's what they caught with their free inspection.”
Coupons & offersSince 1987
1331 Stewart St, Seattle, WA
i
Seattle Radiator Works

Seattle Radiator Works

(20)
“I dropped off a very low clearance motorcycle radiator that needed a neck replacement I don't know how they got the TIG torch in that almost non existant space but thats why I took it to Seattle Radiator.”
BBB A+Since 1988
5011 Ohio Ave S, Seattle, WA
i
Book onlineBook
Express Tires and Auto Services

Express Tires and Auto Services

(44)
“They looked at the damages and recommended an auto body shop for all the repairs but glued my mirror back for free so that I could drive safely in the meantime”
European and German specialist$50 offWheel alignment $99Since 1999
5000 Martin Luther King Jr Way S, Seattle, WA
i
Stone's German Garage

Stone's German Garage

(46)
“My A3 needed more work than i originally thought ( im not a gear head ) but after doing a bit more research and many phones calls with Ryan who was super patient with me, it all made sense.”
Volkswagen specialistSince 2007Family-owned
1549 NW 49th St, Seattle, WA
i
Acme Auto Electric & Repair

Acme Auto Electric & Repair

(41)
“I appreciated stuff had a professional attitude and did not mind taking time to explain to me what was the issue and the options available for fixing it.”
12-mo/12k-mi warrantyHybrid & EV service$100 offSince 1944
9015 Aurora Ave N, Seattle, WA
i
Audi Seattle Service Center

Audi Seattle Service Center

(34)
“Sam went out of his way to get it fixed for us right there and then, with highest quality service, doing the job briefly in between others, and didn't even charge a fee as it was just a really quick fix for them.”
Audi specialistCoupons & offersSince 2010
4701 11th Ave NE, Seattle, WA
i
Greenwood Radiator Services

Greenwood Radiator Services

(21)
“Honest owner and if he can't fix it he can get you cheaper than most autoparts at the same quality, I save $150 to get a new ac condenser and fix my Radiator”
BBB A+Since 1987
1125 N 100th St, Seattle, WA
i
Service First Auto Care

Service First Auto Care

(22)
“My experience was that my car started making a noise one evening, I called the next morning and by 9:30am the car had already been diagnosed and fixed.”
Since 2008
1414 NW 53rd St, Seattle, WA
i

Why these companies made our list

Is this page useful? Yes
No
Is there anything wrong with this page?
Back To Top