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Retrofit vs. Block Frame

TErickson
10 years ago

Hello all. My mother is receiving milguard bids on her home in the San Francisco Bay Area. The front bedrooms of the home have stone surrounding them. Because of this it is not possible to do new construction (which is what she prefers). One contractor recommends she do block frame while the other recommends retrofit. Can someone explain the difference between the two and provide recommendations on which is more energy efficient/better quality?

Thanks in advance!

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