Before launching into any DIY project and especially an undertaking that is as large and as risky as a roofing project, I want you to think again. You must have seen a great many You Tube overtures on how easy it is to attach those shingles and I do not want to argue with that since it really is that simple. The part of putting shingles is just one part of roof repair because you need to consider a lot of things like the size of your roof which can involve very tedious work, the type of roof your have which can make it difficult to work on, the tools that you need to invest in, and the risk of falling off the roof. There is a need to exercise discretion if you are going to make this your DIY project or not because you might, by the time you have already bought the materials and started working on it, find yourself quitting midways and finding it not worth the time and the effort.
Most DIY enthusiast are first time attempters so by comparison to the professional contractors they have no experience to speak-of. Perhaps you are not an expert on roofs, so you will not really have any idea on the extent of work roofing repair will require. Professional roofing contractors are experts in roofing because they have spend hours doing this type of job over and over again and so they know how long roofing repair will take. Roofing projects are the type of projects that cannot be shelved or put on hold so it is critical for contractors to know the estimated completion time of the project. Apart from this advantage, they are also licensed and they carry a distinct insurance policy if in case a mishap happens. In the construction industry, the leading cause of death is falling and most of these are falling from fixing roofs. This includes ladder use, power tools, electricity, noise, hazardous substances and extreme temperatures that can cause serious illness. And professional roofers are able to afford big investments in tools and equipment since this is their line of work and they will be using them all of the time, unlike the DIYer who buys equipment will use it once perhaps once in his entire lifetime.
If you can save money of professional roofing since you are good at it, you will suffer from physical exertion since you will be alone and the job before you is a huge one. And if you make mistakes in the process, then you have just wasted your time and energy.