I do not recommend using Gas Works (Kitchener-Waterloo) for work, particularly for HVAC system repair. We had a simple repair that included coverage for parts under warranty. Gas Works employee asked us to pay the cost of the equipment up front, so that we could apply for the warranty coverage separately. That is a big no-no, and I wish we listened to the warning signs. In truth, HVAC parts suppliers will no longer offer this employee at Gas Works Kitchener any credit for parts. Plus the employee delayed a simple repair 5 times over 19 days. The employee is a nice guy, but totally unreliable and unprofessional. Luckily I was able to contact another HVAC repair service, get my system fixed the next day and did not have to lay out any parts money for a warranty repair. This was a tough lesson for me to learn, and I do not want anybody else to go through this experience. Protect yourself and look for other HVAC repair and installation services.