Renovating a property requires method before any purchase, demolition, or hiring takes place. As Marcio Andre Savi points out, many problems arise when construction begins guided only by urgency, personal taste, or informal price comparisons, without a complete assessment of the property’s actual conditions. In this way, a well-managed renovation depends on a coherent budget, qualified professionals, compatible materials, and decisions made before execution begins. With that in mind, continue reading to understand which mistakes should be avoided before and during the renovation process.
Why does starting a renovation without planning increase risks?
The first mistake is treating a renovation as a sequence of simple adjustments. Even small changes may involve electrical systems, plumbing, coatings, circulation, lighting, and compatibility between spaces. Therefore, without at least a basic plan, every decision affects the next one and creates rework.
According to Marcio Andre Savi, planning must anticipate priorities, technical limitations, and financial impact. This means defining what will be done, in what order, with which materials, and within what budget. When this stage is neglected, the renovation starts reacting to daily problems instead of following a clear objective.
In addition, changes made midway through the process usually become more expensive. A wall removed without proper evaluation, an electrical point relocated too late, or a flooring replacement after purchase can affect labor costs, deadlines, and material waste. For this reason, planning does not make a renovation rigid; on the contrary, it reduces costly improvisations.
Which budgeting mistakes can harm a renovation?
A weak budget almost always comes from incomplete estimates. Many property owners calculate only visible items, such as flooring, paint, fixtures, and cabinetry, but forget about freight, debris removal, permits, finishing details, installations, and contingency reserves.
As highlighted by Marcio Andre Savi, the real cost of a renovation is not limited to the unit price of materials. It also involves technical compatibility, losses during execution, labor time, and adjustments required after opening walls, floors, or ceilings. Ignoring these factors creates a false sense of savings.
The ideal approach is to separate the budget by stages. This makes it easier to compare priorities and identify where there is a risk of overspending. A financial reserve should also be included, since older properties may reveal leaks, outdated pipes, uneven surfaces, or non-standard installations only after the work has begun.

What should be considered before hiring professionals?
Hiring based solely on the lowest price is another common mistake. A renovation involves trust, technical capability, and a clear scope of work. Without a contract, timeline, and detailed service description, any disagreement can lead to delays, extra charges, and results different from what was expected.
With this in mind, the evaluation should consider experience, organization, references, and communication, as emphasized by industry professional Marcio Andre Savi. A professional who explains the stages, points out risks, and documents execution conditions tends to provide more security than someone who promises speed without carefully assessing the property. Therefore, below are some precautions that help reduce conflicts from the beginning:
- Defined scope: clearly describes which services will be performed and which are outside the agreement.
- Realistic timeline: organizes stages and prevents improper overlap of tasks.
- Payment structure: links payments to construction progress, not only to fixed dates.
- Clear responsibilities: defines who purchases materials, receives deliveries, and monitors decisions.
- Written documentation: reduces doubts regarding changes, deadlines, and agreed values.
These points do not eliminate every unforeseen issue, but they make renovation management more objective. When each party understands its role, the property undergoes interventions with less friction and greater control.
How can purchasing materials generate waste?
Buying materials before measuring, checking specifications, and aligning the project is a common mistake. Promotions may seem attractive, but they can create losses when the product does not suit the intended use, does not match the rest of the renovation, or requires unexpected adaptations.
Floor coverings, fixtures, paints, mortars, and electrical items must be selected according to both the environment and the execution process. A beautiful floor may be unsuitable for wet areas. An inexpensive paint may require more coats. A discontinued product may make replacement difficult if additional quantities are needed later.
Another important point, according to Marcio Andre Savi, is calculating waste margins. Every renovation requires extra material for cuts, adjustments, and possible breakage. Therefore, purchasing exactly the measured quantity can lead to shortages and color differences in a second purchase. In other words, savings without proper planning can turn into delays and rework.
Better decisions before the first demolition
Ultimately, avoiding mistakes in a renovation requires more than caution; it requires method. With that in mind, a detailed budget, careful hiring process, planned purchasing decisions, and respect for the property’s characteristics help reduce problems that usually appear too late, when fixing them becomes more expensive.
In this way, renovating successfully means making decisions before execution begins. When the project takes technical limitations, the users’ routine, and financial impact into account, the property stops being just a construction site and starts receiving consistent, durable improvements proportional to the investment.
Author: Diego Rodríguez Velázquez
