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    Sierra Mobile RV

    3.5 (26 reviews)
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    Connie F.

    We are parked at the KOA. & suddenly our power just died. After checking breakers, etc we called Sierra for help. Reuben came out within 30 minutes & checked our electrical. Whatever he did was pretty simple I guess & we were up again! We are thankful it wasn't the expensive issues we imagined it might be!! This is a very professional business. We highly recommend them if you have problems with your Rv

    I wonder where water enters?  Sierra RV can't figure it out. They put that outer sweep gasket on twice!

    They were unable to resolve a water leak after trying 10+ times. I finally pulled the topper off to see what was going on. Once I removed the outer sweep gasket, I saw they have been trying to get sealant behind the inner sweep without taking it off. Huge mess I had to clean up. Steer clear of this company

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    7 months ago

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    4 months ago

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    1 year ago

    Prompt service. The technician explained everything and took pictures to show me the issue. Reasonable pricing. Came right to my campsite

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    3 years ago

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    2 years ago

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    7 years ago

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    3 years ago

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    5 years ago

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    4 years ago

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    5 years ago

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    3 years ago

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    8 years ago

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    3 years ago

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    11 years ago

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    5 years ago

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    10 years ago

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    5 years ago

    Came here to buy some parts while on vacation. They had everything we needed. Thanks so much!

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    7 years ago

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    7 years ago

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    10 years ago

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    12 years ago

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    11 years ago

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    7 years ago

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    10 years ago

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    9 years ago

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    10 years ago

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    Melissa S.

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    Review Highlights - Sierra Mobile RV

    It's not work they do but the owner (Joe and his wife) spent after hours finding a mechanic who could do the work.

    Mentioned in 3 reviews

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    Optimum RV

    Optimum RV

    (2 reviews)

    Optimum RV in Harlingen, Tx provided the Best customer service we've had in a long time. Our…read moresalesman, Ian, was awesome! He listened to our needs and showed us the perfect Travel Trailer that met our needs for a Double Axle trailer. Juan, the Finance person that closed the deal for us was awesome too. Andrew, the Prep and Delivery Service person was great too! We had driven more than 240 miles to look at a specific used Double Axle Trailer that was listed for a great price. We decided paying a little more for a new Trailer would be better for us. Thankful for the great customer service and quick response to our online inquiry that Saturday evening. Ian had come in on his only day off, Sunday, to assist us since we were coming from out of town. Thank you for going above and beyond for us! We highly recommend Optimum RV if your interested in buying a RV.

    - Extremely Disappointed, Avoid Optimum RV Harlingen…read more We purchased a 2020 FR3 from Optimum RV in Harlingen, TX, and the experience has been nothing short of a nightmare. After signing, they kept our RV for over a month to fix a leak from the in-unit washer/dryer combo. Not only was nothing repaired, but they scratched the bathroom when removing the unit. We were promised someone would come to fix it again, as well as check the bedroom A/C and generator--that never happened. We explained multiple times that the RV is our parents' full-time home, and it was not feasible to bring it back in for service. They planned their move-out around Juan's (our salesman) timeline, and we were patient, waiting a whole month for pickup. What we got was a rig still full of issues. To make matters worse, we were sold a warranty that doesn't even work in the Valley. No mobile techs in the area would honor it, and there was zero support from Optimum. We returned the warranty and signed all the paperwork with Dan (finance manager) in early March, and a month later, still no resolution or update. Every time we call, we're told Dan is unavailable. We spoke with Juan again today--still no answers. Bottom line: Do NOT trust these people. Save yourself the headache and shop somewhere else, outside the Valley. This dealership is all talk, zero follow-through.

    Sierra Mobile RV - rvrepair - Updated September 2026

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