Tire installation: what to know

What the job involves, what changes the price, and what to ask a pro.

What tire installation is

A tire shop mounts new tires on your wheels, balances each wheel, sets valve stems, checks pressure and tightens the lug nuts. You need it when you replace worn tires, change sizes, or buy a new set after damage.

Signs you need it

  • The tread is worn down to the wear bars or the tire fails a penny test
  • The tires show cracks in the sidewall or bulges
  • The car vibrates at highway speed or the steering wheel shakes
  • The tread wears unevenly across the width of the tire
  • The tires are old enough to have hardened even with good tread

What the pro does

  • Checks the wheels, valve stems and lug nut seats before mounting
  • Mounts each tire on its wheel and seats the bead
  • Balances each wheel and adds weights where needed
  • Sets the pressure to the figure on the placard in your car
  • Tightens the lug nuts in a set pattern and recommends a recheck after the first drive

What changes the price

Every job is different, so we do not publish prices. These are the things that move the quote up or down.

  • Tire size, load rating and speed rating required by the car
  • Whether the tires are standard, all season, performance or winter tires
  • Whether the wheels need new valve stems or lug nuts
  • Whether the car has tire pressure sensors that need service
  • Whether a wheel alignment or rotation is recommended at the same visit
  • Whether old tires are taken away and recycled

What a written quote should spell out

  • The exact tire size, load index and speed rating
  • The tire brand, model and tread design
  • Mounting and balancing for each wheel, listed separately
  • Valve stem and sensor service, if included
  • Warranty for the tire and what it covers

Questions to ask before you hire

  • Are these tires the size and rating listed on my car's placard?
  • Do you balance every wheel, including the spare if it is included?
  • Will you check the tire pressure sensors when you mount the new tires?
  • Do you recheck the lug nuts after the first drive?
  • What is the tread warranty and what does it require from me?
  • Do you take away and recycle the old tires?

Red flags

  • Puts a tire size on the car that differs from the placard without explaining the change
  • Skips balancing to save time
  • Will not check the valve stems or sensors when they are old
  • Sells a tire without showing the load and speed ratings

What you can do yourself

You can check tire wear with a tread depth gauge or a penny, read the size on the sidewall, and compare tire options before buying. Mounting and balancing need a tire machine and balancer, so have a shop do that. Ask the shop to recheck the lug nuts after the first drive.

Licenses and permits

A license is usually not required for tire installation. Shops may need local business registration, so check with your state or local licensing agency if you are unsure.

Tire installation questions

Do I need to replace all four tires?

Not always. Many cars can take a pair on the same axle, but the car maker and the shop should confirm what is safe for your drivetrain.

How do I know what size tire my car needs?

Use the size on the placard on the driver door frame or in the owner's manual. A shop can confirm the size against your vehicle.

Why does a new tire still vibrate?

A bad balance, a bent wheel or a loose lug nut can cause vibration. Ask the shop to check the balance and the wheel before assuming the tire is at fault.

About this guide

This national guide is written and checked by infinibell. Rules and conditions differ by place, so local pros are credited on guides for the cities they serve, not on national ones.

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