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Tri-State Construction, out of Hooksett, New Hampshire, is who homeowners call when mold shows up — in a chimney liner, an attic, a crawl space, or after water damage — along with the chimney and fireplace repair work that often comes with it. Its Better Business Bureau listing puts it at 22 years in business, with a second location in Manchester, though the BBB does not accredit or rate the company. The reviews here are almost all about the same thing: a mold problem diagnosed and explained clearly, then fixed. One customer describes David performing a careful inspection and walking through every step of the remediation, leaving the home's air quality noticeably better; another describes Ryan explaining how moisture control stops mold from coming back during an urgent removal job; a third, dealing with mold inside a chimney liner, credits Trevor with addressing the moisture source directly rather than just the mold itself. The chimney and masonry side of the business shows up too — one review describes flashing leaks fixed, a damaged chimney cap replaced, and heavy creosote cleaned out, and another describes a full fireplace rebuild that came out looking and working as hoped. A separate review credits a crew led by Tom and Max with finishing a crawl space job thoroughly and on schedule. One thing worth noting: one of these reviews carries a 3-star rating despite describing a fully positive mold-remediation experience with no complaint in the text, so it's worth reading what customers actually wrote rather than just the star count. For a mold, moisture, or chimney-related problem, this reads like a business that explains what it's doing and names the technician doing it — worth asking which of its services fits your specific issue, since the work described spans mold remediation, chimney repair, and fireplace masonry.
This company did a great job! Tom and Max’s team were very thorough and completed the job on schedule with no problems! I would recommend them if you’re looking into a crawl space transformation.
I was impressed with the professionalism shown by this company from the first phone call to the final cleanup. David performed a careful mold inspection and explained every step of the process. Their mold remediation work was efficient, and the mold cleaning made a huge difference in my home's air quality. The crew arrived on schedule, respected my property, and cleaned everything before leaving. Their customer service and attention to detail were outstanding. I would absolutely recommend this company for reliable mold removal services.
The service was professional and efficient with quick response times and detailed inspection of affected areas They explained the mold issues clearly and provided effective remediation solutions that improved indoor air quality while ensuring safety and compliance throughout the process The technicians were knowledgeable courteous and thorough leaving the property clean and odor free overall I recommend this service for reliable mold removal work.
Professional black mold remediation and mold removal company delivering mold testing, attic mold remediation, basement mold cleanup, crawl space mold treatment, moisture control, water damage repair service. Certified technicians removed mold contamination safely and restored indoor air quality. Excellent results were achieved with complete mold removal and strong long term mold prevention.
When I discovered mold buildup inside my chimney liner, I reached out to This service right away. In the middle of the process, Trevor walked me through their mold cleaning, mold removal and mold remediation services and explained how they address the moisture source as well. The technicians worked efficiently and treated every affected surface carefully. They also kept the work area clean and organized throughout the service. The improvement was noticeable immediately, and I feel confident the mold issue has been resolved.
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2 changes recorded — last scanned Sep 10, 2026.
