There are only a few guarantees in life: death, taxes and home improvement projects as a homeowner. Improvement projects may be planned like kitchen remodels or unannounced like leaky roof repairs or flooding basement issues; no matter their cause, home repairs and upgrades can be expensive but necessary if you wish to keep up with current standards. According to the American Housing Survey conducted every other year, homeowners spent an estimated $522 billion in two years on an estimated 115 million projects ranging from installing new toilets and building additions, all the way to replacing toilets entirely. But are all projects worth doing? Certain renovations could add significant value while…