My sibling and I started buying fixer-upper houses at bargain prices, then my friend and I are both handyman-types and wanted to supplement the income from our afternoon jobs by flipping houses, and there’s a relaxing line between fixing up a house too much – and never getting a return on your investment, or not fixing it up enough – and not being able to sell it. My sibling is adept at plumbing, and he often needs to upgrade supply lines and drain pipes. My speciality is in drywall and cupboards, both of which are at the top of the list for upgradements in run-down homes… But when it comes to heating and cooling systems, my associate and I actually need a professional Heating and A/C company; As a rule, Heating, Ventilation and air conditioning companys have a bad reputation, as they are not all licensed by the state, if the company is licensed, it means that he or she is licensed to work with gas, electricity and plumbing. After researching the workers in the area, my associate and I learned that experience isn’t everything; For example, a company may have twenty years in the business, but might not be well-versed in the newer technology. As a rule, my associate and I depend on referrals from people that my associate and I know and trust. And it’s important that the company supply a detailed written quote in case there are legal concerns down the road! Similarly, the lowest estimate is not constantly the best choice. This is because the heating and cooling system is such a major investment, that nice quality is essential! We’ve worked hard to make wise choices in our new venture, and our results have been particularly rewarding.