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Dillon's Automotive
“The technician that was going to service my car called me to let me know that the fluid in the transmission is clean and I didn't need the servicing at this time!”
Best Coolant & Radiator Flush in Katy, TX
24 mechanics listed · 10 in Katy · 15 open weekends · 21 rated 4.5+
Data verified October 16, 2026
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Smith's Auto Repair
“Best car repair experience I ever had, was there at 8 and my car was ready before 11:30 even though they had to wait for the part to come from the dealership.”
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Southwest Car Care Center
- Inspection
- Integrity
- AC
“Matt and James always seem to have good instincts on whats wrong with the car when I was uncertain, even though I used to do much of my car work in the past.”
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Auto Check Elite
“My car needed a starter or alternator the team told me the average price that it may cost for both issues before they did the work and a website to check to see if I could get the parts cheaper.”
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Cinco Tire & Automotive
“Quick response on investigative 1st call for information, efficient and personable response to questions regarding services included and products used.”
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Proline Auto
- Work
- Technicians
- Fair
“What can I say, these 2 brothers are like family, they have done work on all 3 of my vehicles, some issues were hard and some were easy and they get the job done every single time.”
Listed for drivers in and around Katy, TX, 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: Katy, TX
10 of the 24 mechanics we list are based in Katy; the other 14 serve Katy from towns including Houston (27 mi), Cypress (15 mi) and Sugar Land (18 mi). The mechanics on this page are rated from 4.3 to 5.0 across 9,028 reviews; all 24 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (92%), quality (85%) and value (73%). The topics that come up most in reviews of the mechanics on this page are "honest", "diagnosis" and "fair". 15 are open on Saturdays and 1 on Sundays. The services the mechanics on this page list most often on their websites are wheel alignments (4), AC repair (3), auto repair (3), oil change (3) and state inspection (3). 7 list staff certifications (ASE) and 6 have a BBB rating of A or A+. 15 have ten or more years of experience, the longest 35 years. 8 offer financing; 1 gives free estimates; 9 are family- or locally-owned and 13 list coupons or special offers. We count these figures across the mechanics on this page; distances are straight-line, and 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 Katy?
Online booking is offered by 4 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.
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18 Wheelers Lube ONE
“My oil change experience with them was good, didn't have to wait long and they cleaned up the engine compartment really nice after, they're helpful and friendly too.”
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Cinco Car Care
“We started using them because of the proximity to our house and have continued because of their honesty and hard work, and they give back to the neighborhood.”
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Clutch Automotive
- Job
- Honest
- Money
“Clutch Automotive has completed 2 repair jobs on my 2001 Honda CRV now- fixing the back hatch glass pistons and repairing multiple oil leaks and changing spark plugs.”
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Lonestar Auto Repair Katy
- Warranty
- Driving
- Dealership
“! It's also affordable I'm currently a college student and the repairs were affordable and they worked with me to help me so much so I could have my car working right again”
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Auto Care Unlimited
- Quality
- Desk
- Warranty
“This is one of the very few shops in town that I can absolutely trust to get the job done without unnecessary upsales, and to have it done right the first time.”
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Now Auto Care
- Video
- Pressure
- Coupon
“Great service, I really enjoy how they have a complimentary vehicle I can use while service is being performed especially with my work schedule, plus they gave me a great discount on work done”
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Lucas Auto Care
“I took it to Lucas for something totally unrelated and during their inspection they discovered all these things that needed to be done, so much for the dealer”
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Westside Automotive
- Diagnosis
- Mechanic
- Oil
“They even cleaned the windshield of the old stuck on adhesive where my previous oil change sticker was-much attention to detail that is highly appreciated.”
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America's Choice Automotive
“This was my first time but I'd love to deal with them , I advise all my friends to visit this Wonderfull automotive workshop , thank you all Wonderfull Management.”
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Texan Auto Repair & Collision
“I came on a busy Saturday morning and Rush was able to assist me right away and said even though they were busy that he can take care of me within the hour.”
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Katy Brakes & Alignment
- Fair
- Wheel Alignment
- Engine
“A+ mechanic shop in Katy, TX”
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Cliff's Auto Repair
“Their costs for some things might be a little on the high side, but they weren't pushy and didn't lie and that puts them a head of a lot of auto repair places right there.”
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Galson Auto & Body
“Close follow-up by Denise and Robby on service/repair needs, proper regard for customer time, good value on cost of service/repair - made this a very pleasant experience.”
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Advance Automotive
- Oil
- AC
- Job
“Great service it was 9:30 at night and my truck tire popped off the rim, Frank showed up 5 minutes after I called and hooked me up with a tow and spare.”
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West End Auto Works
“I'm 76 and have had problems in the past with other car repair services -- my friend told me about West End Auto Works-- FINALLY FOUND A PLACE WHERE I FEEL COMFORTABLE with my truck-- will be using them for any other services I might need in the futu...”
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Longhorn Diesel
“Long story short he fixed the truck I was able to keep my truck and just truly happy he didn't take advantage of me by buying the truck for really cheap and making profit from it.”
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Honest-1 Auto Care
“The staff at Honest-1 brought that to my attention, made certain that the air pressure in my tires was corrected, advising me of the situation and recommended that I change all four tires.”
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Richmond Tire & Automotive
“We did get new tires free of charge; but we most definitely will be doing repeat business with Richmond Tire and Automotive to deal with people we can trust!!”
Radiator Coolant Fluid Exchange Services in Katy, TX Cost Estimates
Minimum cost
$60
Maximum cost
$230
National Average
$95
$100
$150
Typical price range is based on 358 cost profiles
Why these companies made our list
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