Only if the insulation of the wiring is bad.

Would you do new ductwork, new insulation, or try aeroseal if you were me and trying to reduce your ac bill?

Full gut/rehab (3/2 SFR) 2020 2021 April Multiplier Materials* Materials % of job Multiplier Labor $ Increase 01: Plans / Permits Plans / Permits $ 5,000 $ 5,500 10% 0% 10% $ 500 02: Demolition $ 5,000 $ 5,500 10% 0% 10% $ 500 03: Foundation $ 20,000 $ 22,000 10% 50% 10% $ 2,000 04: Roof / Gutters $ 17,000 $ 18,870 12% 50% 10% $ 1,870 05a: Exterior Paint Exterior Paint $ 7,000 $ 7,700 10% 50% 10% $ 700 05b: Siding $ 5,000 $ 5,500 10% 50% 10% $ 500 06: Windows $ 5,000 $ 5,500 10% 50% 10% $ 500 07: Garage $ 5,000 $ 5,500 10% 50% 10% $ 500 07b: Driveway $ 5,000 $ 5,500 10% 50% 10% $ 500 08: Framing $ 5,000 $ 9,500 170% 50% 10% $ 4,500 09: Finish Carpentry $ 5,000 $ 9,500 170% 50% 10% $ 4,500 10: Sheetrock / Insulation $ 20,000 $ 22,000 10% 50% 10% $ 2,000 11: Interior Paint Interior Paint $ 7,000 $ 7,700 10% 50% 10% $ 700 12a: Flooring (laminate) Flooring (laminate) $ 5,000 $ 5,500 10% 50% 10% $ 500 12b: Flooring (carpet) Flooring (carpet) $ 5,000 $ 5,500 10% 50% 10% $ 500 13: Kitchen All new cabs & countertops $ 7,000 $ 9,940 170% 20% 10% $ 2,940 14: Bathroom $ 5,000 $ 5,500 10% 50% 10% $ 500 15a: Plumbing Rough $ 7,000 $ 7,700 10% 50% 10% $ 700 15b: Plumbing Final Fixtures, water heater, garbage disposal, dishwasher $ 2,500 $ 2,750 10% 50% 10% $ 250 16a: Electrical Rough $ 7,000 $ 8,400 30% 50% 10% $ 1,400 16b: Electrical Final Fixtures $ 2,500 $ 3,000 30% 50% 10% $ 500 17: HVAC Work $ 5,000 $ 5,500 10% 50% 10% $ 500 18: Appliances Range, Garbage disposal, dishwasher $ 4,000 $ 4,400 10% 0% 10% $ 400 19a: Yard Cleanup $ 2,000 $ 2,200 10% 50% 10% $ 200 19b: Fence $ 5,000 $ 9,500 170% 50% 10% $ 4,500 20: Basement / Crawlspace Vapor barrier $ 3,000 $ 3,300 10% 50% 10% $ 300 Contingency Stuff happens $ 5,000 $ 5,500 10% 50% 10% $ 500 trash haul Final trash load $ 500 $ 550 10% 0% 10% $ 50 mow lawn $ 500 $ 550 10% 0% 10% $ 50 Staging $ 3,000 $ 3,300 10% 0% 10% $ 300 $ 180,000 $ 213,360 $ 33,360 16% Does this make sense?

Must be well insulated though. 

Their people never go into the pocket to get the old weights out and to insulate it -- just too much work.

The insulation is better, there’s no cast iron, lead paint, or asbestos.

Spray foam insulation would be a great sound barrier.

The light weight insulation is hard to put up in the wind.Beautiful Texas sky.

Mostly cosmetic fixes besides the AC, ducts, insulation, Aerator for well water and a big back patio of pavers.

I like crawl space houses here for that reason unless I'm living in it and want the extra tornado protection.Regarding the wiring comment, yes you can just run the grounds together because they go to the same place ultimately but there aren't enough outlets and the wiring is fiberglass insulated and by now has crumbled away in this climate.