Plumbing
- https://4frontenergy.com/blog/plumbing-basics/
- https://home.howstuffworks.com/home-improvement/plumbing/plumbing-basics-ga.htm
- https://hi-spec.com/blogs/news/basic-plumbing-repairs-every-homeowner-should-know
- https://www.thisoldhouse.com/plumbing/21016987/how-to-replace-a-plumbing-shut-off-valve (How to change a plumbing valve)
Electrical
- https://gervaiselectric.com/understanding-your-homes-electrical-system-a-beginners-guide/
- https://www.esfi.org/understanding-your-home-electrical-system/
- https://www.rgelectric.net/blog/electricity-for-dummies/
- https://teamenoch.com/blog/electrical-basics-beginners-guide/
Structure
- https://forstconsultingllc.com/blog/recognize-home-structural-damage/
- https://www.usstn.com/blog/identifying-the-warning-signs-of-structural-damage
Heat & cooling (HVAC)
- https://www.wikihow.com/Change-a-Home-Air-Filter
- https://www.hvac.com/expert-advice/how-to-change-an-HVAC-filter/
- https://www.americanstandardair.com/resources/getting-started/hvac-basics/
- https://nelsonsheatingandcooling.com/understanding-your-hvac-system-a-beginners-guide/
- https://buildops.com/resources/hvac-beginners-guide/