@Nik Moushon @Steven WilsonDo you normally create a very detailed sketch for your contractors or are you creating sealed drawings that would go into the city for permits?

As an architect, I cannot merely sign and seal a set of documents that I did not create or have direct control over their creation.

Read about wood epoxies, copper seal, reglazing, etc.Good luck, Frank

This and lack of confidence in sealing the deal.

My plan was to seal off the intake void under the furnace insulate it heavily.

I have sign and seal drawings ready for permitting and bidding.

Consequently, I have to have a restoration company come out, open everything up and let it dry, have a plumber fix whatever is going on, and then get it sealed back up.My main concern is the tenant.

She apparently had an issue before I purchased the house and sealed (cemented) her basement walls in response.

I've sealed only 3 deals over the last 6 months.

It is an absolutely true phenomenon that can easily be maintained as long as the brick is sealed every few years.