Boat Repair Questions and Answers, Lake Winnipesaukee

Before you call

Do you come to the boat, or does the boat come to you?

Both, and the first phone call decides which. Diagnostics, electrics, water pumps, fuel problems, batteries and charging, trim and tilt and seasonal work are all normally done at the boat. Powerhead and lower unit rebuilds and anything needing the boat out of the water are planned as bigger jobs. Fiberglass repair and propeller reconditioning go to specialist trade partners, and you are told who does what.

Which engine brands do you work on?

Mercury, MerCruiser, Yamaha, Honda, Suzuki, Volvo Penta and Sea-Doo. Outboards, I/O sterndrives, PWCs. Those are the brands you see all the time on Lake Winnipesaukee.

How much will it cost?

You get a price before any work starts, split into parts and labor, and the job starts when you say yes. What this site won't do is publish a number for a job nobody has looked at yet — a made-up range is worse than no range.

What do you need to know when I call?

Most calls start with "I have a problem with…" — the lower, the I/O, the PWC, the trailer. Then the year, make and model, roughly what it's doing, and whether it's an emergency or something that can wait to be scheduled. That decides what comes in the van. There is nothing you need to prepare on the boat.

My boat will not start at the dock. What should I check first?

Battery switch on, kill lanyard in place, battery terminals tight and clean. If the engine turns over but will not fire, stop cranking — repeated cranking on a flooded engine causes its own damage. Then call and describe exactly what it does.

My temperature alarm went off once and then stopped. Is that fine?

No. Treat it as a fault until somebody's checked it. When an overheat alarm clears itself, flow usually came back; it doesn't mean flow was never the problem. And the second time is the one that costs money.

When should I book winterization?

From September. Fall books out, and so does spring, so the early call is the one that still gets a choice of date. A missed booking is how a block cracks.

When can spring work start?

Well before the ice goes. A boat on its trailer or on stands can be commissioned in the yard, which is how you end up first in the water rather than tenth in the queue. Ice-out in 2026 was declared on April 13.

Can you work on an older boat?

Yes. Older boats are often easier to diagnose and harder to source parts for, so the honest part of that conversation is availability rather than capability.

Do you handle a breakdown out on the water?

Dockside and on-trailer work, yes. A boat adrift on the lake needs a tow service first — get the boat to a dock safely, then call about the repair.

Where are you, and how far will you travel?

Home base is Mirror Lake, NH, a village in the town of Tuftonboro, Carroll County, on the east side of Lake Winnipesaukee. The work comes to the boat: every town on the lake, and about 50 miles out from Mirror Lake — southern Maine and the North Shore of Massachusetts included, depending on the job.

Are you insured and certified?

Ask on the phone and you'll get the current, exact answer. Here's what the site can say. The business started in 2025, and before that Mike McWhirter spent seven years as a marine mechanic for top dealerships. It deliberately does not print a certification, license number or guarantee that has not been supplied and checked.