Engine Diagnostics & Repair
Outboard, inboard and sterndrive work on Mercury, MerCruiser, Yamaha, Honda, Suzuki and Volvo Penta power.
Diagnostics from $95

Bronston, Kentucky · Lake Cumberland
Family-owned marine repair for outboards, sterndrives, pontoons and jet skis — with straight diagnostics, clean work and no surprise invoices.
18+
Years turning wrenches on Lake Cumberland
Certified
Mercury & MerCruiser trained technicians
1,400+
Boats serviced for local families
Local
Family-owned and operated in Bronston, KY
What we do
Outboard, inboard and sterndrive work on Mercury, MerCruiser, Yamaha, Honda, Suzuki and Volvo Penta power.
Diagnostics from $95
Oil and filter changes, gear lube, impeller and water pump service, plugs, fuel filters and full 30-point inspections.
Service packages from $189
Cold-weather protection in the fall and a full wake-up in the spring so opening weekend never gets wasted at the ramp.
Winterization from $249
Dock rash, stress cracks, keel wear and color matching handled in-house with a finish that disappears into the original.
Estimates always free
Aluminum and stainless reconditioning, hub replacement, balancing and pitch changes tuned to how you actually run the lake.
Reconditioning from $110
Bearings, brakes, lights, wiring, bunks and winches — the parts that decide whether you make it to the ramp at all.
Bearing service from $135

Why folks call us
Jake Thornton grew up pulling lower units at marinas up and down this lake. After years as a certified Mercury and MerCruiser tech, he opened Bluegrass Marine Works to run things the way he always thought a shop should run: diagnose it properly, explain it plainly, and only fix what's actually broken.
Mobile service
Boat won't start at the slip? Due for service but you'd rather not haul it? Our stocked service truck runs to marinas, private docks and storage yards from Burnside to Jamestown — Bronston, Somerset, Burnside, Monticello, Nancy, Jamestown, Russell Springs and every marina and dock on Lake Cumberland.
Request a Dock CallFrom the lake
"My 250 Verado quit on us halfway to Wolf Creek on a Saturday. Jake had it diagnosed Monday morning and it was a fuel pump, not the $4,000 job another shop guessed at. Straight answers every time."
"They came right to our slip at Conley Bottom and serviced both pontoons while we sat on the dock drinking coffee. Photos texted, invoice matched the estimate to the dollar."
"Backed my runabout into a piling and tore up the port side. The gelcoat match is dead on — I've shown three people and nobody can find the repair."
Tell us what the boat is doing and we'll get you on the schedule — shop drop-off or mobile service at your slip.