Mud Season hits different here in Laconia. One week you’re cruising past Opechee Park and the next you’re dodging craters on Court Street like it’s a slalom course, and Sanborn's Auto Repair sees the results in the shop bays every spring. The trouble is that frost heaves and potholes don’t just feel rough. They turn into real damage fast.

Around Laconia, Gilford, Belmont, Tilton, and Sanbornton, the freeze-thaw cycle becomes a road demolition derby. Snowmelt works into tiny cracks, freezes overnight, and lifts the pavement into a ridge. Then traffic breaks it apart. That “bump” you hit on your way to Hannaford becomes a suspension problem by the time you’re headed home.

Frost heaves turn normal roads into suspension tests

Frost heaves are not random. They show up in the same kinds of places every year. Low spots where water sits. Shady stretches where the pavement stays cold. Areas where plows and salt already beat up the asphalt.

Here is what happens, in plain English:

Water gets under the pavement. It expands when it freezes.
The road lifts into a hump. Your tires hit it at speed.
The pavement then breaks down into a pothole. Your wheel drops into it.
That impact transfers straight into your tire, wheel, steering, and suspension.
The damage escalates with every repeat hit.

That’s why roads around Route 107, back roads heading toward Gilford, and the usual cut-throughs between Belmont and Laconia feel especially brutal once the thaw starts. You’re not imagining it. The road is actively changing week to week.

What potholes actually do to your car (and why it gets expensive quickly)

A pothole hit is a physics problem. The tire takes the first punch. The wheel takes the second. Then your suspension and steering components absorb the rest. If the impact is hard enough, your alignment shifts immediately and the tire starts scrubbing tread every mile after that.

Here is how the damage stacks up.

Suspension damage: shocks, struts, springs, and bushings take the beating

Your suspension exists to keep the tire planted and your ride controlled. Potholes and frost heaves force the suspension to travel farther and faster than it’s designed to, over and over.

Common results we see every Mud Season:

Worn or leaking struts/shocks , The car starts bouncing and losing control over bumps.
Damaged strut mounts and bushings , You hear clunks and feel looseness in the front end.
Bent or stressed components , The car no longer feels “tight,” especially at highway speed.

The earlier you catch suspension wear, the sooner you stop the cascade of related problems. That’s the whole game.

Alignment damage: one hit shifts it, weeks of driving destroys the tires

Alignment is not a “nice to have.” It’s geometry. When a pothole knocks things out of spec, your tires stop rolling straight and start sliding slightly. That sliding becomes heat. Heat becomes wear.

What happens next is predictable:

The steering wheel sits off-center.
The vehicle pulls left or right.
The tires develop uneven wear that cannot be reversed.

If you wait, you will buy tires sooner than you planned. Every time.

Tire and wheel damage: sidewalls tear and rims bend

Tires are tough, but sidewalls are not designed to get pinched between a pothole edge and a rim at speed.

After a pothole hit, you will see:

Bubbles or bulges on the sidewall , This means internal damage. The tire is unsafe.
Slow leaks , A bent rim or bead damage will bleed air.
Vibration , A bent wheel or broken belt will shake the car, especially 45–70 mph.

If the steering starts to shake after a hit, treat it like a priority. It never improves on its own.

The “Lakes Region feel test”: signs you need a check-up right now

Does your car feel different since the thaw started? That feeling is data. Your vehicle is telling you what the road just did to it.

Here are the most common, most reliable symptoms we use in the shop to spot pothole damage.

You feel pulling on a flat road , Alignment is out or a tire has internal damage.
You feel vibration in the steering wheel , Wheel balance is off, a rim is bent, or a tire belt shifted.
You hear clunking over bumps , Sway bar links, ball joints, strut mounts, or control arm bushings are worn or damaged.
You hear a new humming or roaring , A tire developed cupping from bad shocks or a bearing took a hit.
You notice uneven tire wear , Alignment and suspension wear are already eating the tread.
Your braking feels shaky , A pothole hit will stress suspension parts that keep braking stable, and it will show up as wobble or instability.

Ignore these signs and the problem becomes two problems. Then three. The sooner you get eyes on it, the smaller the bill stays.

How to drive smarter during Mud Season without white-knuckling every mile

You’re not going to avoid every pothole. Not on Union Ave. Not on the side streets near Weirs Beach. Not on the run up toward Gilford when the shoulder is soft and the lane is narrow.

Still, you can reduce the damage significantly with a few habits that work here in Laconia.

1) Slow down before the impact, not during it

Braking hard while the wheel is dropping into a pothole loads the suspension and increases the hit. If you see broken pavement ahead, reduce speed early and roll through steady.

2) Don’t swerve into the unknown

A quick dodge seems smart until the shoulder is soft or the oncoming lane has its own crater. Hold your lane when traffic is tight. Keep distance so you have time to choose.

3) Avoid puddles you can’t read

Mud Season puddles hide potholes. If you can’t see the bottom, treat it like a hole.

4) Keep your tire pressure correct weekly in spring

Cold mornings and warmer afternoons swing pressures. Underinflated tires hit harder and pinch easier. Check them weekly until temps stabilize.

5) Pay attention to frost heave warning signs

When Public Works posts frost heave signs, they mean it. The bump is sharp and the pavement edge is broken. Slow down.

Your spring “pothole-proofing” checklist (what to inspect first)

Spring is the best time to reset your vehicle after winter damage. Salt, sand, and months of rough roads wear parts down quietly. Then Mud Season finishes the job.

Here is what you need checked, in a practical order.

Suspension and steering inspection

This is your foundation. If these parts are worn, everything else suffers.

Shocks/struts for leaks and bounce control
Ball joints and tie rod ends for looseness
Control arm bushings and sway bar links for clunks
Steering components for play and stability

A tight front end drives straight. A loose front end chews tires and feels sketchy at speed.

Alignment check

Alignment should be checked after any hard pothole strike. It should also be checked any time you replace tires or suspension parts.

You’ll feel the difference immediately. So will your tires.

Tire inspection (tread, sidewalls, and impact damage)

A tire with a sidewall bubble is done. A tire with uneven wear is telling the truth about your suspension and alignment. Don’t argue with it.

We inspect:

Tread depth and wear pattern
Sidewalls for bubbles, cuts, and cracking
Bead area for leakage signs
Wheel condition for bends and corrosion

Brake check

Winter grime and spring potholes are a rough combo. If the suspension is loose, braking feels worse. If brakes are worn, stopping distance increases.

A proper brake inspection includes:

Pad thickness and rotor condition
Caliper operation and slide pins
Brake fluid condition and leaks

If you’re hearing squealing or grinding, treat that as an immediate stop-in issue. Brakes don’t wait.

Undercarriage and exhaust inspection (salt damage is real here)

The salt from winter stays trapped in seams and brackets. It keeps working until it’s cleaned off or repaired around.

We look for:

Exhaust leaks and rusted hangers
Corrosion on brake and fuel lines
Loose shields or underbody panels

Fluids and leak check

Spring is when small leaks show up clearly on a clean driveway.

Oil level and condition
Coolant level and strength
Brake and power steering fluid levels
Transmission fluid condition (where applicable)

A leak today becomes a breakdown later. That timeline is always shorter than people expect.

What we do at Sanborn’s (and why locals choose us over the chains)

You have choices in the Lakes Region. Still, you want the place that tells you the truth, shows you what’s worn, and fixes what needs fixing without the upsell script.

That’s how Sanborn's Auto Repair operates. We’re local. We’ve been serving the Lakes Region since 1973. We see Mud Season damage every year, and we know the roads you drive because we drive them too.

We also don’t hide behind corporate pricing games. Big national chains sell packages. We fix cars.

And yes, we’re proud of it. In 2025, we earned Gold Medals for Tire Dealer, Oil & Lube Shop, and Auto Repair Center. That comes from neighbors voting with real experience. It’s not a marketing badge.

Full-service shop means you don’t have to bounce around town

When potholes start the chain reaction, it’s rarely just one thing. That’s why having one shop that handles everything saves you time and keeps the diagnosis consistent.

We handle:

Oil changes and factory maintenance schedules
Tires (selection, mounting, balancing, repairs)
Brake service and brake inspections
Steering and suspension repair
Alignments and tire wear corrections
Engine diagnostics and check engine light testing
Battery, charging, and starting issues
Exhaust system inspection and repair
NH state inspections and repair guidance

If it clunks, pulls, vibrates, squeals, or leaks. We deal with it all day.

Quick FAQ: the questions we hear every spring in Laconia

“I hit a pothole and everything seems fine. Do I still need to come in?”

If the hit was hard enough to make you cringe, you need an inspection. Damage shows up as loose joints, bent rims, or shifted alignment that won’t be obvious in the first 10 minutes. It will be obvious after 500 miles.

“My steering wheel shakes only at 55–65 mph. What is that?”

That is a wheel/tire problem. It is always a wheel/tire problem. A bent rim, shifted belt, or balance issue will sit right in that speed range and shake the car consistently.

“My car pulls but my tires look fine. What now?”

Pulling means the alignment is out or a tire has internal damage. Both need a real inspection, not a quick glance.

Yes, we have shop dogs (and they take their greeting duties seriously)

Auto repair can feel stressful. You’re busy. You’re watching the budget. You just want the car to feel safe again.

That’s why we keep the vibe human in here. Our shop dogs are part of the routine, and if you’ve been in before, you already know they’re the unofficial welcome committee. If you’re having a rough day, have you ever tried talking cars while a friendly dog leans against your leg? It helps.

Don’t wait for a small shake to become a big repair

Mud Season damage escalates. A little vibration turns into uneven tire wear. Uneven wear turns into tire replacement. A worn bushing turns into alignment problems. Then it becomes braking instability. This is how spring potholes drain a budget.

Stop in and let us take a look before it gets expensive.

Schedule your suspension, tire, and alignment check with Sanborn's Auto Repair at 316 Court St, Laconia, NH or call (603) 524-9798. We’ll give you straight answers, solid repairs, and a car that feels steady again.