ThermalWeld has been a member of the national Better Business Bureau since 2002 and has an A+ rating. The only way you get a rating like this is customer satisfaction.

Head gasket failure and the cooling system issues that surround it can quickly become a financial nightmare. Let us help you! Our service represents 15 years of compiled knowledge gathered from hundreds of ThermalWeld's infield technicians. Combine that with ThermalWeld's 2-part catalyzed head gasket sealant and you've got a winning combination.

We guarantee that with our guidance you will be able to determine the most cost effective solution to your problem. The ThermalWeld Guarantee is simple - Unconditional Money Back Guarantee. Whether you decide to repair your head gasket, replace the one you've got or donate your car to charity, at least it will be an informed decision based on experience and knowledge you can trust.

If your local mechanic's Repair Estimate exceeds the value of your car, we highly recommend contacting ThermalWeld's Technical Support for a free Diagnostic Evaluation. The best results for a successful repair are always achieved when performed by an experienced ThermalWeld Technician.

If we don't have a technician available in your area or if you choose to do the repair yourself, a technician will be assigned to you for phone consultation.

After you have successfully repaired your car using our process you may want to consider becoming a ThermalWeld Technician. Most of our technicians started this way!

Blown head gaskets are one of the most expensive automotive repairs you will ever encounter and they are frequently misdiagnosed.

Head gasket damage often goes undetected after other suspected cooling system components have been repaired. When this happens your car will continue to overheat with no obvious reason why. An experienced mechanic will normally perform a Block Test to determine if exhaust gases are present in the cooling system. That simple test verifies the condition of the head gasket and should be part of the diagnostic process.

Avoid Companies That...

• Charge more for an eight cylinder than a four cylinder engine. Ninety percent of the time cylinder head gasket failure occurs in two cylinders next to each other. Factors requiring increased quantities of chemical include severely damaged gaskets and cooling systems larger than a five gallon capacity - not number of cylinders.
• Claim to have "special formulas" for your specific vehicles. These companies have no real technical support. A blown head gasket is a breach between the water jacket around the cylinder and the combustion chamber. The object is to effectively repair that breach. Separate "formulas" for different vehicles do not exist.
• Claims to give Lifetime Warranties that are conditional. Any company that requires you to spend more money to get back the money you have already spent should be avoided. What you want is an Unconditional Money Back Guarantee without third party verification and inflated return shipping costs.
• Incredible unsubstantiated facts:
  • Stronger than original head gasket
  • 95% success rate
  • Permanent Fix
  • Lifetime Repair
  • Mechanic's Choice
• Your should not accept a retreatment from a company before you know why the first treatment did not work. In most cases the retreament voids your warranty.