High Performance Modular Homes

High Performance Modular Homes is a Williston modular home builder. The company describes itself as a family-owned business that builds custom modular homes, with higher insulation values and radiant barrier house wrap as standard, and its website says it has been in business 10 years. A recent Google customer building on a particularly difficult lot said Karen and her team made sure their family had the perfect home. A recent r/vermont commenter wrote that they had just finished a house with the company in Williston and would recommend them. A 2023 customer said the company handled the design and construction of a vacation home, that the house was completed on time, and that it was ready for occupancy within 6 weeks after module delivery. That 2023 customer also said the home sat beyond the region where the company typically builds, so several contractors were not Karen's usual crew, and some of those costs came in higher than estimates. A 2024 customer said they moved into their home within 6 months of signing the final contract, as promised, and that Karen promptly corrected the few minor issues that arose; that 2024 customer named one downside, that the houses arrive primed but not painted. A 2025 customer said the fixtures were quality brand-name ones rather than the cheap no-name brands usually installed in prefab homes. A 2024 customer said Karen Gagne and her crew finished the interior design of their Main Street location in Newport, Vermont. A 2024 customer reported cracks in the corners, which they were told were "normal settling," and then half-inch gaps between the sheetrock. Its BBB grade is A+.