My stamped concrete driveway was due for a new coat of sealant. Several construction contacts recommended I do the sealcoating myself, claiming it is not difficult. After watching several DIY YouTube videos and reading the comment sections where many people commented on ‘white streaking’ during the process, I opted to hire a professional. Out of four contractors who matched job qualifications on this website, I hired Mr. Camacho. We had several amiable conversations. I told him I was worried about the dreaded white streaking, (apparently the most common error during sealcoating concrete) and this is why I hired a professional. Our deal was that I provided the sealant, so I could use the brand I wanted. I procured construction grade sealant and when Mr. Camacho saw the product, he exclaimed, “this is the best product!” Mr. Camacho power washed the driveway and then applied the sealant. After 24 hours of drying of the last sealcoat, I noticed white splotches covering about 20% of the driveway. I was not sure what these were so I researched on several reputable concrete websites, and sure enough, these were the same white streaking that were in so many of the DIY video comments -- the exact reason I had hired a professional. The concrete websites report that the white splotches, called efflorescence, is caused by moisture in one of two ways: 1) the driveway is not completely dried at time of sealant application or 2) calcium deposits have come to the surface due to power washing. In case of #2, the easy fix is to simply clean the calcium deposits off the driveway prior to applying sealant, which is neither difficult nor time consuming. An experienced concrete sealcoater would have known this. I was not worried about contacting Mr. Camacho about the efflorescence, as we had enjoyed a friendly relationship. I immediately sent photos of the spots. To my surprise, his first response was that the spotting had occurred because the driveway had damage. I responded by sending him one of the links of the websites, and telling him the spots were in fact, NOT due to damage but to moisture. He agreed and then stated I could “get someone to fix (the spots) in the spring” After that response, he ceased communication. I escalated through Angie’s List/HomeAdvisor and was assigned a case manager. Because the title of Mr. Camacho’s business is Power Washing & Painting, I asked her how contractors appear once a customer selects the needed job; was there an algorithm through the website or does each contractor actually select the area of knowledge? She confirmed it was the later, so he had selected “knowledge of stamped concrete” in his contractor profile. My goal was to have a solution that both Mr. Camacho and I at minimum could live with and at best, be a win-win. I sent in all of my documentation, plus photos and asked the case manager for input on my suggested resolution. She told me she had been with the company for over 15 years and my remediation proposal was more than fair, even to the point of being generous to Mr. Camacho. She said most contractors respond to the Angie’s List case managers within 2 days and sounded pretty confident we would reach a win/win resolution. She contacted him through both email and voicemail. After one week, there was no response and she urged me to write a review. I asked her to follow up one more time, just to be sure he had not missed the first outreach. Another week went by with no response. Again, she urged me to write a review, not so much for me, but for the community. Failure occurred on 3 levels: Unwilling to discuss/converse after a job is finished. Despite three separate attempts over three weeks to reach a win/win solution for both me and Mr. Camacho, he did not return outreach attempts. Unwilling to accept responsibility/rectify errors / non-quality finished product. There was no response to the proposal, nor any counter proposals for how to remediate the shoddy work on the driveway. Lastly, he knowingly kept full payment for a job despite being provided photographic evidence that the job was not correctly and completely finished. (As a side note to this story, part of his bid for the job was that he would clean the front flower border bricks. This was never done.) I would never rehire Mr. Camacho based on this experience.