Fresno & Clovis · Family-owned since 1989
Victron lithium, solar and RV repair in Fresno, done by the owner
Victron lithium, solar and inverter systems for Class B vans, Class C motorhomes and fifth wheels. Plus repair in our Fresno shop or at your RV.
- Family-owned since 1989
- Victron specialist
- Owner designs and installs
- 1-year install warranty
What we do
Most of our work falls into four kinds of job
Victron & lithium systems
Lithium batteries, MultiPlus-II inverter/chargers, alternator and DC-DC charging, Cerbo GX monitoring.
Electrical upgrades
RV solar
Roof arrays with Victron SmartSolar charge controllers, sized to how you camp.
Solar installs
Mobile RV repair
We come to your home, storage lot or RV park for diagnostics, AC, water heaters and more.
Mobile service
RV roof replacement
Full Forever Roof replacements, plus roof damage covered by insurance.
RoofsAlso: awnings, RV air conditioners, and general RV repair. Insurance and extended-warranty jobs welcome. We don't do engine or drivetrain work.
Why CTS
The person who designs your system is the person who wires it
Most electrical upgrades are sold by one person and installed by another. At CTS, the owner sizes your battery bank, picks the components, builds the system and walks you through it at pickup.
- Built for your RV. Sized to your loads, roof space and how long you stay off-grid. No kits.
- Victron, every week. MultiPlus-II, Orion XS, SmartSolar, Cerbo GX and Lynx are the parts we know best.
- Clean, labeled work. Proper fusing, labeled circuits and a walkthrough before you drive away.
- Factory systems too. We repair failed secondary alternators and factory lithium systems on Roadtrek, Winnebago, Airstream, Thor and Coachmen vans.
Google reviews · 4.5 stars from 44 reviews
Owners who trusted us with their systems
“Earlier this year Mitchell did a major lithium batter and inverter upgrade on my Class B (Winnebago Solis 59PX). It consisted of new batteries, Victron Inverter, DC o DC charge, Cerbogx w/touch, solar charge controller, smart shunt, a/c easy start and several other things. The work was clean and he did an excellent job at a fair price. I totally recommend CTS.”
“Whether it's routine maintenance or upgrading our solar and batteries to our Class C RV, Mitchell and CTS RV Repair have consistently done outstanding work. Their technical expertise, honesty, fair pricing, and attention to detail have earned our complete trust. The service and quality are far above what we've experienced at most RV dealership service departments.”
“Couldn't be more happier with CTS.. They Honored a quote from June and Got my Camper inverter and solar panels installed. Install was Very clean and neat. Explained system throughly when I picked up. I've been to multiple Dealers and Repair people around town over the years owning campers and CTS is by far best service and Experience!”
Shop or mobile
Bring it to the shop, or we'll come to you
Big installs and roofs are done in our Fresno shop at 5662 E Clinton Ave #104. Diagnostics and many repairs can be done where your RV is parked. Mobile service calls start at $100 within 10 miles of the shop.
Towns we serve:
Tell us what your RV needs
Call, text or send a quote request. Most quotes go out within one business day.