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Reconstruction & Renovation / Itemized Cost Estimate


When you plan to construct a new home or refurbish an existing one, an important step is obtaining a cost estimate, known as an “Orçamento” in Madeira. Once you’ve identified a trustworthy and competent builder, you’ll need them to generate this Orçamento.


How to get an itemized cost estimate for your renovation project
reconstruction & Renovation Itemiized Cost Estimate

Before discussing costs and timelines with your contractor, it’s crucial to create a comprehensive plan of your project. If it’s a renovation, use your property’s blueprints to make a room-by-room outline of the desired modifications. Be specific about your intentions. For example, if you’re revamping a kitchen, decide whether you want to change the flooring, cabinets, or countertops. Think about whether you’ll knock down a wall to create an open-plan kitchen and living area, or if you plan to swap small windows for larger, panoramic ones. In the bedroom, consider if new flooring or built-in wardrobes are needed. In the master bathroom, think about whether to refresh the floor and wall coverings or replace an old bathtub with a contemporary shower. If a total rebuild is planned, detail this as well.


As much as possible, specify your material preferences, such as floor and wall finishes, and detail every proposed change. If you’re thinking about altering your home’s exterior, use the same detailed approach and include these in your list. Remember that exterior modifications that alter the property’s size or layout would require project submission to the city hall for approval.


Creating this detailed overview will require more effort, time, and work, but it’s highly recommended to spend enough time to make it as thorough and complete as possible. There are clear benefits in having such a detailed plan.


For example, You will have a clear and comprehensive understanding of your project and the tasks that need to be completed. You will also be able to see more clearly the tasks, materials, and time required for each step of your project. By breaking down your project, you will be better positioned to communicate with your general contractor, architect, and engineer what you want to achieve, consequently aiding them in understanding your project. Additionally, you will be better able to foresee potential issues and avoid costly mid-project changes.

When you receive a quote from your contractor, you will be better equipped to compare, discuss, and negotiate for the best offer.


In most cases, a general contractor will typically provide a traditional quote, which is a high-level project estimate. Most traditional quotes offer a flat price with very little indication of the scope of the project, a brief description of the work, or at best the cost is broken out by different categories of work or suppliers, e.g. masonry, carpentry, etc.


To proceed, you’ll need to engage in a discussion about your detailed project—the one that you’ve already prepared. This step is crucial because it allows the contractor to fully grasp your vision, clarify your needs and goals, and ultimately provide an accurate itemized quote.


Understanding the distinction between a traditional general contractor quote and an itemized renovation cost calculation is essential. Let’s break it down:


Traditional Quote Provides a general overview of the project requirements. At best, includes pricing for various categories of renovation work (e.g., electrical, plumbing, carpentry). Lacks granularity, as it doesn’t specify individual tasks within each category.


Itemized Calculation Delivers detailed pricing for specific tasks within a category. For instance, within the electrical work category there are several tasks such as Replacing Old Wiring, Installing Light Fixtures, Installing Electrical Panels, Adding New Switches and Outlets, Outdoor Lighting Installation, Circuit Troubleshooting, etc.

However, even with detailed and itemized project calculations, arriving at a precise estimate can pose challenges for your contractor. This is particularly true when your renovation involves subcontractors, other suppliers, and technical providers. Fluctuations in material costs and labor availability within their respective areas directly impact the overall project price.


Having an itemized work list proves invaluable. It empowers both you and your contractor to make adjustments—whether to specific project components or the suppliers providing those components.

This fine-grained breakdown leads to a more reliable estimate. Furthermore, these detailed estimates can be effectively compared with other quotes, allowing you to assess individual components side by side.


Remember that the initial price estimate you receive is not set in stone. Throughout the process, adjustments may be necessary due to changing preferences or unforeseen circumstances. As a general guideline, allow for a margin of change in your budget—typically around 15-20% of the original quote.


By opting for itemized cost estimates, you’ll navigate your renovation journey with confidence and clarity.

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