Update: The general manager called and offered resolutions. I was very glad that the management/owner care about customer experience. They offered full refund but I didn't take it. Updating to 4 stars as appreciation that they came back to me and apologized, and tried their best to get a resolution and gain customer satisfaction. Thank you! They tried the vent inspection again, but the camera could not further go down my pipe at the second turn. It's ok. At least, they tried their best. And that

very professional. You could tell Gerardo knows what he’s doing, watching a professional at work

The water heater replacement service provided by Gerardo and Teo was excellent. This was particularly impressive given the unit’s location in an uphill basement. They were very polite, highly skilled, and offered competitive pricing. I would strongly recommend their services to anyone requiring water heater replacement or related work. I would like to express my gratitude to Gerardo and Teo.