About Keltic Aviation
30 Years of Experience. Family Operated. Aircraft Focused.
Keltic Aviation is a family-operated aircraft repair and upgrade shop in Upland, California. With 30 years of aviation experience, we provide aircraft maintenance and repair, avionics troubleshooting, inspections, installations, and upgrades.
Our approach is straightforward: understand what your aircraft needs, communicate clearly, and bring decades of hands-on knowledge to the work at hand.
We Do It Right.
No Shortcuts.
30 Years of Hands-On Aviation Experience
Three decades in aviation bring perspective developed through years of hands-on work. That experience matters when diagnosing problems, evaluating aircraft systems, planning repairs, and determining the right approach to maintenance or upgrades.
Keltic Aviation brings practical knowledge across aircraft maintenance, repair, avionics, troubleshooting, inspections, installations, and navigation, communication, and related flight systems.
Every aircraft and every service need can be different. We take the time to understand the situation, evaluate what requires attention, and determine the appropriate path forward.
Proudly Disabled Veteran-Owned
Keltic Aviation is a proud disabled veteran-owned business. We bring the same dedication, discipline, and unwavering commitment to excellence required in military service to the aircraft maintenance and avionics work we perform in our shop every day. When you trust us with your aircraft, you are working with a team that values integrity, clear communication, and precision above all else.
A Family-Operated Aircraft Repair & Upgrade Shop
Being family operated is an important part of who we are.
At Keltic Aviation, personal service and pride in workmanship go hand in hand. We value straightforward communication and want aircraft owners to understand the work being considered for their aircraft.
Whether you come to us with a repair concern, an avionics problem that needs troubleshooting, routine maintenance, or plans for an upgrade, you can talk directly with our team about what you are experiencing and what your aircraft needs.
It is a personal, professional approach backed by decades of aviation experience.
Aircraft Maintenance & Avionics Capabilities
Keltic Aviation brings aircraft maintenance and avionics services together under one roof. Our capabilities allow us to assist aircraft owners with a range of maintenance, repair, troubleshooting, inspection, installation, and upgrade needs.
Our primary services include:
Aircraft Maintenance & Repair
Avionics Repair & Troubleshooting
Avionics Installation & Upgrades
Aircraft Inspections & Preventive Maintenance
Navigation, Communication & Flight Systems
When an aircraft issue requires troubleshooting, having experience across multiple systems can help provide a more complete understanding of the problem. We focus on identifying what requires attention before determining the appropriate service or repair.
How We Approach Your Aircraft
Good aircraft service starts with understanding the work in front of us. Our approach centers on careful evaluation, clear communication, and experienced workmanship.
Listen
We start with what you are experiencing, the service you need, or the upgrade you are considering. Understanding the concern gives us a clear starting point.
Evaluate
When an issue requires troubleshooting, we take a methodical approach to identifying its source and evaluating what requires attention.
Determine the Right Path Forward
Once we understand the situation, we can determine the appropriate maintenance, repair, inspection, installation, or upgrade for your aircraft.
Complete the Work With Care
From aircraft maintenance to avionics work, we bring careful workmanship and attention to detail to the job.
What Aircraft Owners Say
Customer feedback offers a firsthand perspective on what it is like to work with Keltic Aviation.
"Great service. Makes ‘house calls’ if necessary. Very knowledgeable and experienced."
See Our Work
Take a closer look at the work performed at Keltic Aviation. Our gallery features aircraft maintenance, repairs, avionics installations, upgrades, and other projects from our shop.
Aircraft Repair & Avionics in Upland, CA
Keltic Aviation is located at 1749 W 13th St, Hangar 9A, Upland, CA 91786.
From our Upland shop, we provide aircraft maintenance, aviation repair, avionics troubleshooting, inspections, installations, upgrades, and preventive maintenance.
- We are open Monday through Friday from 7:30 a.m. to 4:00 p.m. and closed Saturday and Sunday.
Frequently Asked Questions
How much aviation experience does Keltic Aviation have?
Keltic Aviation brings 30 years of hands-on aviation experience to aircraft maintenance, repair, avionics, troubleshooting, inspections, installations, and upgrades.
Is Keltic Aviation family operated?
Yes. Keltic Aviation is a family-operated aircraft repair and upgrade shop located in Upland, California.
What services does Keltic Aviation provide?
Our services include aircraft maintenance and repair, avionics troubleshooting and repair, avionics installation and upgrades, aircraft inspections and preventive maintenance, and service for navigation, communication, and flight systems.
Does Keltic Aviation handle both aircraft maintenance and avionics?
Yes. We provide both aircraft maintenance and avionics services, allowing our team to assist with a range of repair, troubleshooting, inspection, installation, and upgrade needs.
Where is Keltic Aviation located?
Our shop is located at 1749 W 13th St, Hangar 9A, Upland, CA 91786.



