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Reviews for Guaranteed Home Improvement

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  • September 2025

    Professional, prompt and courteous. The stainless steel tube installed should eliminate future problems with my chimney which is money well spent. No hard sales pitch. They tried and succeeded in making the process easy.

  • July 2025

    Eder did a great job installing the chimney liner, cap, and flashing. My house was built in the 1950s, and the chimney needed some work. I was updated throughout the process. He was both professional and courteous.

  • July 2025

    Our Oil company, Tragar Home Services, recommended Guaranteed Chimney, and we were so pleased with their service! Mike was super helpful in taking a look at our chimney sleeve and making the right recommendations for a new sleeve ahead of putting in our new boiler. The crew came over the same day, they were on the roof in minutes, cleaning the chimney and replacing 2 sleeves for a great price. The crew made sure to explain each process by showing us photos they took on an ipad so we could see each update that was made. This was great, especially for someone who doesn't know much about chimneys and how they connect to boilers! The crew made sure to clean up and explain... read full review

  • Guaranteed Home Improvement

    500 Old Bethpage Rd, Plainview

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