# Best air conditioning repair shops in Ost / South Union

Data as of November 11, 2026. 13 shops, each scored out of 100 on review cadence, review sentiment, stated capabilities and years of experience. How the ranking works: [method](https://bestautorepairshops.com/method/) (markdown: https://bestautorepairshops.com/method/index.md).

| # | Shop | Neighbourhood | Known for | Score |
|---|---|---|---|---|
| 1 | [National Transmission](https://bestautorepairshops.com/houston/national-transmission/) | Ost / South Union | Toyota, Chevrolet, Mercedes-Benz | 89/100 |
| 2 | [AnA Tire & Automotive](https://bestautorepairshops.com/houston/ana-tire-and-automotive/) | Ost / South Union | Chevrolet, Mercedes-Benz, BMW | 79/100 |
| 3 | [Kacal's Auto and Truck Service](https://bestautorepairshops.com/houston/kacals-auto-and-truck-service/) | Ost / South Union | Shuttle or loaner car, ASE certified technicians, Diesel repair | 72/100 |
| 4 | [Royal Palms Auto+Sales A/C Brakes Inspections](https://bestautorepairshops.com/houston/royal-palms-auto-sales-a-c-brakes-inspections/) | Ost / South Union | State inspection, Air conditioning repair, Engine diagnostics | 43/100 |
| 5 | [ToyoCars, Inc](https://bestautorepairshops.com/houston/toyocars-inc/) | Ost / South Union | Collision repair, Wheel alignment, Tire service | 41/100 |
| 6 | [National Auto Care](https://bestautorepairshops.com/houston/national-auto-care/) | Ost / South Union | Shuttle or loaner car, Wheel alignment, Transmission repair | 28/100 |
| 7 | [S.M.I.T.H AUTO](https://bestautorepairshops.com/houston/s-m-i-t-h-auto/) | Ost / South Union | Tire service, Transmission repair, Air conditioning repair | 26/100 |
| 8 | [A&J automotive solutions](https://bestautorepairshops.com/houston/a-and-j-automotive-solutions/) | Ost / South Union | Wheel alignment, Transmission repair, Air conditioning repair | 23/100 |
| 9 | [MasterDrive Mobile Mechanic](https://bestautorepairshops.com/houston/masterdrive-mobile-mechanic/) | Ost / South Union | Tire service, Transmission repair, Air conditioning repair | 21/100 |
| 10 | [Betty's Enterprise](https://bestautorepairshops.com/houston/bettys-enterprise/) | Ost / South Union | Tire service, Transmission repair, Air conditioning repair | 20/100 |
| 11 | [All About Rides](https://bestautorepairshops.com/houston/all-about-rides/) | Ost / South Union | Transmission repair, Air conditioning repair, Engine diagnostics | 15/100 |
| 12 | [Honey Do Automotive & Truck Repair](https://bestautorepairshops.com/houston/honey-do-automotive-and-truck-repair/) | Ost / South Union | Tire service, Air conditioning repair, Engine diagnostics | 11/100 |
| 13 | [Auto shop and mobile mechanic](https://bestautorepairshops.com/houston/auto-shop-and-mobile-mechanic/) | Ost / South Union | Transmission repair, Air conditioning repair, Engine diagnostics | 6/100 |

## 1. [National Transmission](https://bestautorepairshops.com/houston/national-transmission/)

Ost / South Union · since 1979 · 4.7 rating from 270 reviews

- Review cadence: 25/25
- Review sentiment: 19/25
- Capabilities: 20/25
- Years of experience: 25/25
- Total: 89/100

## 2. [AnA Tire & Automotive](https://bestautorepairshops.com/houston/ana-tire-and-automotive/)

Ost / South Union · since 2001 · 4.4 rating from 541 reviews

- Review cadence: 25/25
- Review sentiment: 10/25
- Capabilities: 19/25
- Years of experience: 25/25
- Total: 79/100

## 3. [Kacal's Auto and Truck Service](https://bestautorepairshops.com/houston/kacals-auto-and-truck-service/)

Ost / South Union · since 1949 · 4.5 rating from 605 reviews

- Review cadence: 23/25
- Review sentiment: 11/25
- Capabilities: 13/25
- Years of experience: 25/25
- Total: 72/100

## 4. [Royal Palms Auto+Sales A/C Brakes Inspections](https://bestautorepairshops.com/houston/royal-palms-auto-sales-a-c-brakes-inspections/)

Ost / South Union · reviewed since at least 2026 · 4.7 rating from 114 reviews

- Review cadence: 23/25
- Review sentiment: 14/25
- Capabilities: 6/25
- Years of experience: 0/25
- Total: 43/100

## 5. [ToyoCars, Inc](https://bestautorepairshops.com/houston/toyocars-inc/)

Ost / South Union · reviewed since at least 2021 · 4.4 rating from 136 reviews

- Review cadence: 13/25
- Review sentiment: 10/25
- Capabilities: 10/25
- Years of experience: 8/25
- Total: 41/100

## 6. [National Auto Care](https://bestautorepairshops.com/houston/national-auto-care/)

Ost / South Union · reviewed since 2023 · 5.0 rating from 15 reviews

- Review cadence: 3/25
- Review sentiment: 12/25
- Capabilities: 9/25
- Years of experience: 4/25
- Total: 28/100

## 7. [S.M.I.T.H AUTO](https://bestautorepairshops.com/houston/s-m-i-t-h-auto/)

Ost / South Union · reviewed since 2021 · 5.0 rating from 13 reviews

- Review cadence: 1/25
- Review sentiment: 7/25
- Capabilities: 8/25
- Years of experience: 10/25
- Total: 26/100

## 8. [A&J automotive solutions](https://bestautorepairshops.com/houston/a-and-j-automotive-solutions/)

Ost / South Union · reviewed since 2023 · 4.7 rating from 19 reviews

- Review cadence: 0/25
- Review sentiment: 9/25
- Capabilities: 8/25
- Years of experience: 6/25
- Total: 23/100

## 9. [MasterDrive Mobile Mechanic](https://bestautorepairshops.com/houston/masterdrive-mobile-mechanic/)

Ost / South Union · reviewed since 2025 · 5.0 rating from 12 reviews

- Review cadence: 0/25
- Review sentiment: 11/25
- Capabilities: 8/25
- Years of experience: 2/25
- Total: 21/100

## 10. [Betty's Enterprise](https://bestautorepairshops.com/houston/bettys-enterprise/)

Ost / South Union · reviewed since 2020 · 5.0 rating from 2 reviews

- Review cadence: 0/25
- Review sentiment: 1/25
- Capabilities: 8/25
- Years of experience: 11/25
- Total: 20/100

## 11. [All About Rides](https://bestautorepairshops.com/houston/all-about-rides/)

Ost / South Union · reviewed since 2021 · 4.0 rating from 4 reviews

- Review cadence: 0/25
- Review sentiment: 1/25
- Capabilities: 6/25
- Years of experience: 8/25
- Total: 15/100

## 12. [Honey Do Automotive & Truck Repair](https://bestautorepairshops.com/houston/honey-do-automotive-and-truck-repair/)

Ost / South Union · reviewed since 2025 · 5.0 rating from 2 reviews

- Review cadence: 0/25
- Review sentiment: 3/25
- Capabilities: 6/25
- Years of experience: 2/25
- Total: 11/100

## 13. [Auto shop and mobile mechanic](https://bestautorepairshops.com/houston/auto-shop-and-mobile-mechanic/)

Ost / South Union

- Review cadence: 0/25
- Review sentiment: 0/25
- Capabilities: 6/25
- Years of experience: 0/25
- Total: 6/100

## Questions

**Which air conditioning repair shop in Ost / South Union ranks highest?** [National Transmission](https://bestautorepairshops.com/houston/national-transmission/), with a score of 89 out of 100.

**Which air conditioning repair shop in Ost / South Union has the most reviews in the last 12 months?** [AnA Tire & Automotive](https://bestautorepairshops.com/houston/ana-tire-and-automotive/), with 80+ reviews in the last 12 months.

**Which air conditioning repair shop in Ost / South Union has the highest Google rating?** [National Auto Care](https://bestautorepairshops.com/houston/national-auto-care/), rated 5.0 from 15 reviews.

**Which air conditioning repair shop in Ost / South Union has been open the longest?** [Kacal's Auto and Truck Service](https://bestautorepairshops.com/houston/kacals-auto-and-truck-service/), founded in 1949, going by the year it states itself.

**How many shops does this ranking include?** 13 shops, each scored out of 100 on review cadence, review sentiment, stated capabilities and years of experience.