parallax background

Serpentine Belt Repair at your home

Our certified mechanics come to you · Backed by 12-month / 20,000 km gold standard warranty program.

8AM - 6PM Monday to Saturday

Serpentine Belt Repair Service

How much does a Serpentine Belt repair cost?

The cost for replacing the serpentine belt varies on the vehicle but is usually between $100 to $350.

What is a serpentine belt?

The serpentine belt, also called the alternator belt, accessory belt or drive belt, is what connects the engine’s output shaft to the alternator. You’ll notice cracking and fraying if your belt is wearing out, which is a sign that it should be changed.

When to replace your car's serpentine belt

  • Regularly scheduled maintenance. Normally, belt manufacturers recommend belt replacement at 140,000 km. However, the belt must be examined for wear or damage at regular intervals prior to this high mileage.
  • Squealing noise, visible belt damage, belt slippage. You may hear noise or you may see visible signs of deterioration such as missing chunks of rubber, excessive cracking, or a shredded appearance on the edge of the belt if the belt fail or wear out prematurely.
  • Battery Light On. A loose belt, possibly caused by a defective tensioner, may not drive the alternator at sufficient speed and thus the battery may discharge, causing the warning light to light up.
  • Engine overheating. Often, the serpentine belt powers the water pump. In those applications, the engine will overheat in seconds to minutes if the belt breaks. If the belt is inadequately tensioned, you may notice higher-than-normal engine operating temperature.

How do mechanics replace the serpentine belt?

  • Before removing the belt, the mechanic must run the engine to regulate if the idler pulley and the belt tensioner are noise-free. Those rotating components have grease filled bearings and are subject to breakage. Moreover, the mechanic will guarantee that all pulleys and accessories are turning in the same plane. These steps help assure your new belt will operate trouble-free for its full-service life.
  • The belt’s routing path through the various components is noted. The belt tensioner is released, usually with a lever or wrench, to relieve the tension from the belt. With the tension gone, the belt slides off the pulleys.
  • All rotating components — that is the air conditioner compressor, alternator, etc. — are inspected for smooth operation and no noise.
  • If everything checks out, the new belt is installed all of the pulleys while holding the tensioner away from the belt. The tensioner is released and the installation is complete once the belt is centered on all pulleys. The engine is run to ensure normal operation.

Is it safe to drive with a serpentine belt problem?

No. If the belt has visible damage, you risk sudden and unexpected breakage that could possibly leave you stranded. Serpentine belt problems that result in the alternator not charging may cause the battery to discharge, resulting in loss of electrical power to the vehicle. Furthermore, if a worn out belt breaks and that belt drives the water pump, the engine will overheat in a matter of seconds.

Serpentine Belt Repair Reviews

Robert Freimanis
Robert Freimanis
00:50 14 Aug 19
They changed a fan belt in my parkade downtown, came on time, and gave a quote prior to doing the work. Will use them again.
David Fraser
David Fraser
23:05 06 Mar 19
My wife’s car would start but stall at traffic lights. My best guess after checking battery and belts was that I’d require a new alternator. For the cost of a tow, the instamek mechanic diagnosed problem and got the car running. The technician Jack found a faulty sensor, cleaned the contacts and my wife is now happy once more. Very courteous and thorough service. No doubt I’ll be using them in... the more
Maciek Sokulski
Maciek Sokulski
23:44 14 Jan 19
Second time with InstaMek. After my alternator belt snapped, I contacted InstaMek, and with in an hour Alex was at my place with all the necessary parts. In the next hour my car was fixed and ready to go. I was impressed with communication, quick and convenient service. Good people, great service, very highly recommended.Alex was on time and inspected the car. Gave me great advice on... possible fixes. The communication with the company is outstanding. It's both emails and text, and in this digital world it is very welcoming. I knew exactly when the mechanic would arrive and if there were any issues when arriving late. Absolutely outstanding and convenient service. I'm will definitely call on them more
Allen Kumar
Allen Kumar
14:32 05 Mar 18
The service and convenience are HEAVEN!!!My wife dripped off our kids at the arena for a hickey game. As she was parking, there were funny jerks. Thankfully she was able to park. But the car was not starting.She took the kids to the hockey game. While watching the game, she called instamek and left he keys at the information desk for the mechanic.4 hours later after the warm up, the game,... and dressing the kids, my wife and the kdis walked to the parking to the now fully functioning vehicle. Here is a list of what they did (skme of the work was elevtive as i had asked for it)1) diagnostics2) new sparks plus3) new engine starter4) changed engine oil5) 4 break pads and rotars6) my passenger head lamp (broken from before)7) new battery8) new beltMy wife didnt even meet the mechanic. She disnt even leave the arena. Everything was explained and oid for via the phone call.My next plan is to have my yearly tune ups done while I’m at costco, the gym, or work!!!Thanns guysread more
Henry L
Henry L
05:23 20 Aug 17
Had a great experience. The team was well organized, responsive, and extremely helpful. The mechanic arrived on time and was very professional and knowledgeable. My timing belt and alternator was replaced and I'm very happy with the quality of work done. The experience was truly hassle free as promised.
Adam Marko
Adam Marko
00:04 04 Aug 17
After having a couple bad experiences at some large shops in Calgary I came across these guys while searching for another mechanic on google. Sounded a bit too good to be true at first, but after contacting them I was emailed back a detailed quote within 30 minutes. One day later I had a friendly mechanic named Clay show up at my work to replace my timing belt, water pump AND serpentine belt; all... done in the parking lot well before I needed to drive home. This is an amazing service and I hope you guys get the recognition you deserve! Thanks!read more

We are open from 8am - 6pm Monday to Saturday