Cottonwood, AZ — Northern Arizona

BUILT ON
EXPERTISE.
DRIVEN BY
EXCELLENCE.

Certified diesel technician. Career automotive professional. Founder of the most-reviewed mobile RV repair service in Northern Arizona. 123 five-star Google reviews don't happen by accident.

CERTIFIED DIESEL TECHNICIAN
121 FIVE-STAR GOOGLE REVIEWS
100% MOBILE SERVICE
LICENSED & INSURED
NORTHERN ARIZONA'S #1 CHOICE
NO TOWING REQUIRED
FACTORY-TRAINED TECHNICIAN
SAME-DAY SCHEDULING AVAILABLE
CERTIFIED DIESEL TECHNICIAN
121 FIVE-STAR GOOGLE REVIEWS
100% MOBILE SERVICE
LICENSED & INSURED
NORTHERN ARIZONA'S #1 CHOICE
NO TOWING REQUIRED
FACTORY-TRAINED TECHNICIAN
SAME-DAY SCHEDULING AVAILABLE
121★Google Reviews
5.0Star Rating
100%Mobile & Onsite
0Towing Required
Josh - Owner & Lead Technician

Meet Your Technician

JOSH —
OWNER &
LEAD TECH.

Josh didn't stumble into RV repair. He came to it with a full career's worth of automotive expertise — including a certification in diesel repair. That foundation means he approaches every RV job the way a trained mechanic does: diagnose it correctly, understand the system, and fix it right the first time.

His diesel certification gives him an edge on motorhome engine systems, chassis components, and generator service that most mobile technicians simply don't have. Combined with years of professional automotive work, Josh brings a standard of diagnostic rigor to mobile RV service that Northern Arizona RV owners count on.

Every one of those 123 five-star reviews is a direct result of that commitment — job to job, campsite to campsite, from Sedona to Flagstaff to Prescott.

DIESEL REPAIR CERTIFIED
CAREER AUTOMOTIVE PRO
FACTORY-TRAINED RV TECH
LICENSED & INSURED LLC
121 ★ GOOGLE REVIEWS

Background & Credentials

THE EXPERTISE
BEHIND EVERY
REPAIR.

Josh's dedication to excellence wasn't born when he launched RV Tank Specialist — it was forged over a full career in the automotive field. His diesel certification gives him a deep understanding of engine systems, fuel delivery, electrical architecture, and chassis components that most RV technicians lack entirely.

You see it in every review: precision diagnostics, problems caught that others missed, factory-quality results.

FOUNDATION

AUTOMOTIVE CAREER

Built the professional foundation in the automotive industry — developing the diagnostic mindset, systems knowledge, and mechanical discipline that define every repair today.

CERTIFIED

DIESEL REPAIR CERTIFICATION

Earned certification in diesel repair, providing specialized knowledge of engine systems, fuel systems, chassis components, and the powertrain architecture common in Class A and C motorhomes.

EXPANDED

FULL RV SYSTEMS EXPERTISE

Expanded into the full RV systems spectrum — electrical, plumbing, appliances, structural, and holding tanks — to handle virtually any job on any make and model.

TODAY

RV TANK SPECIALIST LLC

Based in Cottonwood, Arizona. 123 five-star Google reviews. Serving Northern Arizona one campsite at a time.

ONE CAMPSITE
AT A TIME.

That's how RV Tank Specialist built 123 five-star reviews — showing up, doing it right, and treating every customer the way a fellow RV owner deserves to be treated.

The Standard

WHAT YOU GET
EVERY TIME.

These aren't talking points. They're what 123 five-star reviews actually describe — in the customers' own words.

01

DIAGNOSE FIRST

A certified diesel technician doesn't guess. Josh diagnoses the system correctly before any repair begins.

02

HONEST ASSESSMENT

If it doesn't need fixing right now, Josh will tell you. Reviews show he catches second problems and is upfront about both.

03

WE COME TO YOU

Campsite, driveway, parking lot, storage facility. No towing, no shop drop-offs, no waitlists. Fully equipped on-site.

04

EXPLAINS THE WORK

Customers leave knowing exactly what was wrong and what was done. Josh shows you the problem, not just the bill.

05

QUALITY WORKMANSHIP

Backed by professional automotive training, Josh holds himself to a diesel-certification standard on every job.

06

LICENSED & INSURED

RV Tank Specialist LLC is fully licensed and insured. A certified, career-trained professional every time.

Dedication to Excellence

121 FIVE-STAR REVIEWS.
EVERY ONE EARNED.

The direct result of a certified, career-trained technician showing up to every job committed to getting it right.

"
★★★★★
"Josh is the real deal. We have used him for all kinds of repairs over the past two years and there is no job he cannot handle. His knowledge of RV components is genuinely impressive."
CASI J.COTTONWOOD, AZ — GOOGLE REVIEW
"
★★★★★
"Camping in Sedona, water heater kept shutting off. Josh was already at the campground, stopped by, diagnosed it on the spot, and didn't charge us a thing. What a genuinely good guy."
CYNTHIA G.SEDONA, AZ — GOOGLE REVIEW
"
★★★★★
"Water pump died the night before we had to leave. Called at 6am, on the schedule by 11:30, met us in a parking lot, fixed it, and we made it to the Grand Canyon ahead of the weather."
VERIFIED GOOGLE CUSTOMERCOTTONWOOD, AZ — GOOGLE REVIEW
"
★★★★★
"Josh installed an air brake system on my 2000 Monaco Dynasty. Everything looks like it came straight from the factory. Would not hesitate to have him do any other work on my RV."
VERIFIED GOOGLE CUSTOMERNORTHERN AZ — GOOGLE REVIEW
"
★★★★★
"Professional but felt like family. Found it, fixed it, and even caught a second problem I didn't know I had. He has my business for as long as he wants it."
VERIFIED GOOGLE CUSTOMERCOTTONWOOD, AZ — GOOGLE REVIEW
"
★★★★★
"Had an issue with my water heater and Josh walked me through the troubleshooting over the phone to save me a service call. Not many people would do that. First call for any future repair."
VERIFIED GOOGLE CUSTOMERNORTHERN AZ — GOOGLE REVIEW

Our Signature Service

THE
HYDRO-JET
METHOD.

Tank cleaning is where RV Tank Specialist started — and our 1,800 PSI hydro-jetting process remains one of the most thorough in Northern Arizona. Standard tank rinsers and chemical additives cannot reach the corners, the front bulkhead, or the buildup that accumulates over time.

We blast every surface at 1,800 PSI and flush everything through your existing sewer connection. In nine out of ten cases, sensor accuracy is fully restored through the cleaning process alone.

RV Tank Specialist hydro-jet cleaning

BLACK TANK CLEANING

1,800 PSI blasts every surface and flushes the waste pyramid and all buildup that rinsers miss. Sensor restoration included where possible.

GRAY TANK DESCALING

Mold, mildew, and struvite mineral crystals removed completely. Tank walls descaled for permanent odor elimination.

SENSOR RESTORATION

Sensors reading full when the tank is empty are almost always buildup, not electronics failure. Restored through cleaning wherever possible.

SITE REQUIREMENTS

Requires full hookups: city-pressure water, 15-amp 110V power, and sewer connection. Uses 100–200 gallons of water.

THE JOY IS IN THE JOURNEY.
— Thomas S. Monson

YOUR RV NEEDS FIXING.
WE COME TO YOU.

Based in Cottonwood — serving the Verde Valley, Sedona, Prescott, Flagstaff, and all of Northern Arizona.

📞 (928) 295-0358