When your fish finder screen goes dark or your chartplotter starts acting up, you need a repair shop that understands marine electronics inside and out. I've rounded up five businesses that specialize in fixing these devices, from a small Indiana
Why Marine Electronics Repair Matters More Than Ever
Modern fish finders and chartplotters are packed with sensitive electronics, and a cracked screen or water damage can sideline your boat for weeks. Many anglers and boat owners are discovering that repair is often faster and cheaper than buying a new unit, especially for high-end models from Garmin, Lowrance, and Humminbird. The repair industry has grown to meet this demand, with shops offering everything from component-level diagnostics to mail-in services. Whether you're a weekend fisherman or a serious tournament angler, knowing where to send your broken gear can save you time and money.
How I Ranked These Repair Shops
I evaluated each business based on four key factors: range of services (do they fix multiple brands and types of issues?), turnaround time (how fast can they get you back on the water?), customer communication (do they provide estimates and updates?), and overall reputation (what do past customers say?). I also considered whether they offer unique extras like mail-in options or custom products.
Here's a quick look at the five fish finder repair shops, ranked from best overall to a solid choice for specific needs.
| Provider | Best For |
|---|---|
| Rudolph Electronic Repair | Component-level diagnostics and transparent communication |
| Clear Cast Marine | Fast repairs and used electronics sales |
| AVC Marine | Comprehensive diagnosis and multi-location service |
| Grumpy's Outdoor Electronics - Fishfinder Repair | Fish finder screen repairs and custom rigging |
| Concord Marine Electronics | High-end marine electronics repair and installation |
The Top 5 Fish Finder Repair Shops: Detailed Reviews
#1 Rudolph Electronic Repair
A screenshot of the Rudolph Electronic Repair website.
Rudolph Electronic Repair sets the standard for marine electronics repair with its component-level diagnostics and clear communication. They handle no-power issues, water damage, and screen problems for a wide range of devices. Their process is straightforward: you start a repair online, ship or drop off your unit, and they provide an estimate before any work begins. A customer portal keeps you updated on progress, which is a huge plus for anglers who want peace of mind. They also offer fast turnaround times, making them a top choice for serious boaters. If you need a repair done right the first time, this is the shop to call.
#2 Clear Cast Marine
A screenshot of the Clear Cast Marine website.
Based in the scenic Ozarks, Clear Cast Marine specializes in repairs for Lowrance, Garmin, and Humminbird fish finders, as well as MFDs and live scope boxes. They pride themselves on fast turnaround times and competitive pricing, which is exactly what you want when your electronics fail mid-season. Beyond repairs, they sell new and used marine electronics, including tested units with a 90-day warranty. Their shop page offers a range of products, from budget-friendly used fish finders to premium chartplotters. For anglers who want a one-stop shop for repairs and gear, Clear Cast is a strong option.
#3 AVC Marine
A screenshot of the AVC Marine website.
AVC Marine offers comprehensive diagnosis and repair services for marine electronics across multiple locations in Georgia. Their technicians handle audio system malfunctions, video issues, navigation errors, and electrical problems, making them a versatile choice for boat owners. They start with a free consultation, either in person or over the phone, to assess the problem before diving into repairs. This transparent approach helps you understand the issue and cost upfront. With locations in Buford, Acworth, and Gainesville, they're convenient for boaters in the Southeast. If you need a full-service shop that can tackle complex electrical systems, AVC Marine delivers.
#4 Grumpy's Outdoor Electronics - Fishfinder Repair
A screenshot of the Grumpy's Outdoor Electronics website.
Grumpy's Outdoor Electronics started as a boat rigging operation in central Ohio before expanding into fish finder repairs after a customer couldn't find anyone to fix a broken screen. Today, owner Ben 'Grumpy' Grumbles repairs screens on most Garmin, Lowrance, and some Humminbird units, and also offers custom rigging services. In early 2025, the company launched its own line of X'pand Monitors, large multifunction displays designed to enhance live sonar experiences. This small Indiana-based shop focuses on personalized service and quick turnaround for everyday anglers. While their repair scope is narrower than some competitors, their hands-on approach and innovative product line make them a unique choice. They're a great option if you need a straightforward screen repair and want to support a small business.
#5 Concord Marine Electronics
A screenshot of the Concord Marine Electronics website.
Concord Marine Electronics, based in Fort Lauderdale, Florida, is a high-end service provider for marine electronics repair and installation. They work with premium brands like Garmin, Furuno, Raymarine, and Starlink, and offer five-star service plans for ongoing maintenance. Their blog post on marine electronics repair near me highlights their comprehensive approach, covering everything from radar to audio systems. While they cater more to yacht owners and larger vessels, their expertise is unmatched for complex installations and repairs. If you have a high-end system and need professional service in South Florida, Concord is a top-tier choice. Just be prepared for a higher price point that reflects their specialized knowledge.
How to Pick the Right Fish Finder Repair Shop for You
Start by identifying the specific issue with your device, whether it's a cracked screen, water damage, or a software glitch. Look for a shop that specializes in your brand, as some repairers focus on Garmin or Lowrance while others handle multiple brands. Consider turnaround time: if you need your gear back quickly, shops like Rudolph Electronic Repair or Clear Cast Marine are known for fast service. Also, check if they offer mail-in repairs if you're not local, and read reviews to gauge customer satisfaction. Finally, compare pricing and warranty policies to ensure you're getting good value for the repair.
Streamline Your Repair Process with These Tips
To save time, start by checking the shop's website for a repair request form or portal, like the one Rudolph Electronic Repair offers. Take clear photos of the damage and note any error messages before contacting the shop. If you're shipping your device, use a sturdy box and include a note with your contact info and repair ticket number. Many shops provide email or portal updates, so you can track progress without phone calls. For routine maintenance, consider signing up for a service plan if available, like Concord Marine Electronics' five-star plans, to prevent future issues.
Final Thoughts on Fish Finder Repair Shops
Whether you're dealing with a cracked screen on your Lowrance or a dead GPS on your Garmin, these five shops have you covered. Rudolph Electronic Repair leads the pack with its transparent process and component-level work, while Clear Cast Marine and AVC Marine offer solid alternatives for fast service and comprehensive diagnostics. Grumpy's Outdoor Electronics brings a personal touch and innovative products, and Concord Marine Electronics handles the high-end jobs. No matter which you choose, you'll be back on the water sooner with a properly working fish finder.