Manufactured and modular homes represent a major segment of affordable housing throughout rural Thurston, Lewis, and Mason Counties, including Rochester, Yelm, Grand Mound, and Centralia. However, buying, selling, or refinancing a manufactured home frequently hits a major roadblock during mortgage underwriting.
Federal lending guidelines—including FHA, VA, and Fannie Mae/Freddie Mac conventional loans—strictly require that manufactured homes be placed on a permanent, engineered foundation system. The home must meet all criteria outlined in the HUD Permanent Foundations Guide for Manufactured Housing (Handbook 4930.3G).
Traditional setup methods involve resting the home's steel chassis on dry-stacked cinder blocks resting on loose dirt or shallow plastic pads, surrounded by thin vinyl skirting. In a Cascadia earthquake or high windstorm, unanchored homes easily slide off loose pier stacks, rupturing gas lines and causing catastrophic frame damage.
To qualify for mortgage financing and protect your family, Olympia Foundation Repair Pros installs certified engineered retrofit foundation systems. We install heavy-gauge steel longitudinal and transverse earthquake-resistant bracing systems (ERBS) that mechanically bolt to the steel I-beams.
We drill and embed concrete anchor pins into solid footings or drive heavy helical ground anchors deep into load-bearing soil, locking the manufactured chassis permanently in place. Our licensed structural engineer partners conduct on-site inspections and issue stamped HUD Compliance Certification Letters that guarantee rapid mortgage loan closing.