Rainier Builders
Pacific Northwest contractor specializing in moisture-resistant construction
About
Seattle and Puget Sound custom home builder specializing in moisture-durable construction: rain screens, advanced framing, vapor-open wall assemblies, and third-party building science reviews on every project. 19 years building in the PNW climate without a single mold or moisture failure in completed work. Certified Passive House builder — one of only six in Washington State.
What they offer
- Custom home builds (Passive House optional)
- Whole-home remodels
- Moisture-durable retrofits
- Building science consulting
- Project management only (partner builds)
Reviews
“Year 4 in our home. Zero mold issues, zero moisture. Heating bills are less than $40/mo in January. Worth every penny.”
“They diagnosed 3 problems other contractors missed. Retrofit was $86K, but solved issues others couldn't.”
“Only builder who could deliver what we wanted. Energy consumption is 1/10 of a neighbor's similar-sized home.”