Estimates Are Essential When Undertaking Major Repairs! Key Comparison Points and Precautions Introduced!

Large-scale repairs for condominiums, apartments, factories, and other buildings can incur costs that are
significantly higher than typical partial repairs.

This is where estimates become crucial.

If you choose a contractor without adequately comparing estimates, you increase the likelihood of unexpected additional costs, a decline in construction quality, and troubles during the project.

Why are estimates important for large-scale repairs?

Large-scale repairs can involve significant costs, often ranging from several million to tens of millions of yen, or even more.

Therefore, how you obtain and review estimates is very important.

Here, we will introduce three specific reasons why estimates are crucial for large-scale repairs.

1. You can grasp the appropriate price

The costs of large-scale repairs can vary greatly depending on the size of the building, its age, deterioration status, and construction methods.

Thus, it’s difficult to determine whether the quoted amount from a single company is high or low.

By obtaining estimates from multiple companies, you can gain insight into the market rates for each construction item, making it easier to understand the appropriate price.

Additionally, if an estimate is extremely low, it may indicate omissions in the construction details or a potential decline in quality, so it is essential to verify and compare thoroughly.

2. You can prevent omissions in estimate items

Large-scale repairs involve many processes, such as exterior wall repairs, waterproofing, and scaffolding installation.

If you contract without comparing estimates, there is a risk of not realizing that necessary items are missing while the construction progresses.

If there are omissions in the items, additional costs may arise during the project, significantly exceeding the initial budget, so caution is necessary.

By carefully reviewing the contents of the estimates and comparing them with other companies, you can more easily avoid the troubles and risks mentioned above.

3. You can compare the quality of construction proposals

Estimates serve as documents to check the costs, but they also provide materials to evaluate the proposal capabilities of the construction companies.

Even for the same building, the understanding of deterioration and the approach to repair methods can differ among contractors.

By comparing the contents of the estimates, you can thoroughly check whether the proposals are forward-looking and whether the explanations are easy to understand, making it easier to narrow down contractors you can trust.

Basic Structure of Large-Scale Repair Estimates

A quote is not just a list of amounts,

but rather a blueprint that shows which construction work requires what costs and why.

That is why it is essential to understand the overall structure correctly.

Here, we will explain the basic items that must be included in the estimate and the breakdowns that are commonly seen in practice.

Basic Items

A large-scale repair estimate must include
the name of the work, scope of work, quantity, unit price, and total amount as basic items.

Occasionally, some contractors may use the term “one set” to list only the total amount, but in such cases, it becomes impossible to understand what costs are associated with what.

Additionally, the basis for the amounts may be unclear, and in the worst-case scenario, you may be charged extra costs after the work is completed, so caution is necessary.

Common Breakdowns

In actual estimate breakdowns,
scaffolding installation, exterior wall repairs, painting, waterproofing, sealing, and painting of metal parts are the main works listed.

Furthermore, disposal costs for waste materials, protective measures, and cleaning or beautification work for common areas are often included as well.

Additionally, depending on the condition of the building, unexpected items such as substrate repairs or additional waterproofing may be added, so please keep this in mind.

Common Troubles in Large-Scale Repair Estimates

In large-scale repairs, it is not uncommon to proceed with contracts without thoroughly checking the contents of the estimate, leading to troubles during or after the completion of the work.

Here, we will introduce some troubles that are particularly likely to occur.

✔️Additional Costs Due to Missing Items

If necessary construction items are not included in the estimate, the likelihood of additional costs arising after the work begins increases.

For example, substrate repairs, partial waterproofing treatments, and the removal of existing equipment.

These are basic works in large-scale repairs and are often carried out, so if there are any oversights, it can easily lead to troubles regarding additional costs.

In some cases, it may significantly exceed the initially anticipated costs, so caution is necessary.

Missing items can occur even if the contractor has no ill intentions, so it is essential to check carefully and thoroughly.

✔️Troubles Due to Unclear Specifications

If detailed specifications or construction methods are not clearly stated in the estimate, discrepancies in understanding are likely to occur.

For example, if the grade of the paint, number of applications, or type of waterproofing method are not specified, it can lead to troubles such as “the finish is different from what I expected.”

In addition, unclear specifications can lead to additional costs and rework.

To avoid such troubles, it is important to carefully check quantities, materials, and methods during the estimation stage.

✔️Additional Work After Estimation

If the criteria for creating estimates are lax, new issues may arise during construction, leading to additional work.

Particularly in areas that are difficult to visually inspect, such as the interior of exterior walls or the waterproofing layer on the roof, caution is necessary.

While additional work itself is not inherently bad, it can lead to unexpected expenses, so it is essential to eliminate as many risks as possible during the estimation stage.

Therefore, let’s carefully search for contractors who can create thorough and accurate estimates.

Points to Consider When Comparing Estimates for Major Repairs

When undertaking major repairs, it is common to obtain estimates from multiple companies, but simply comparing prices can lead to misjudgments.

Estimates can vary significantly based on the scope of work and underlying conditions, so it is important to remember how to make accurate comparisons.

Here, we will explain in detail the specific points for comparing estimates that you should keep in mind to select the appropriate contractor.

✔️Always Compare with the Same Content

This is not limited to major repairs, but when comparing estimates, it is crucial to compare them based on the same scope of work and conditions.

In major repairs,

and other small differences can lead to significant variations in price.

For example, if one contractor includes substrate repairs while another only anticipates minimal repairs, it is natural for there to be a price difference.

Therefore, you must not simply judge that “Company A is cheap” or “Company B is expensive,” but rather check whether all work items are included.

The ideal approach is to create a common specification document or list of work contents and request estimates based on that.

By following this procedure, the proposal capabilities and pricing fairness of each contractor will become clear.

✔️Confirm the Basis for Quantities

When reviewing estimates for major repairs, it is important to check not only the prices but also whether the basis for quantities is clear.

The area of exterior wall painting, the scope of waterproofing work, and the area for scaffolding can significantly affect the total amount based on how quantities are set.

If the quantities are higher than the actual situation, it can lead to excessive cost burdens, and if they are lower, there is a possibility of additional costs arising during the work.

Particularly concerning are estimates that frequently use the term “one set.”

The “one set” notation may seem straightforward, but it can often obscure specific quantities and calculation bases, making it difficult to assess their validity.

Reliable estimates clearly specify measurements such as square meters (㎡) and meters (m), along with explanations of the calculation methods.

To smoothly and safely carry out large-scale repairs, it is essential to first confirm whether the quantities are accurately reflected in the estimate.

✔️Check the consistency between the long-term repair plan and the estimate content

When comparing estimates for large-scale repairs, it is important to verify whether the long-term repair plan aligns with the estimate content.

The long-term repair plan is a crucial indicator that organizes necessary repair work, implementation timing, and estimated costs for the next 20 to 30 years.

If this plan does not align with the current estimate, it may lead to future funding shortages or the collapse of the plan.

For example, if a project scheduled for the next repair is included in the estimate ahead of schedule, it will result in a larger short-term financial burden.

On the other hand, if the necessary work for this time is omitted from the estimate, it will require repairs again in a few years, ultimately leading to increased costs.

Such discrepancies can significantly impact the management of repair reserve funds, so it is crucial to thoroughly check the long-term repair plan alongside the estimate content.

Points to consider when reviewing estimates for large-scale repairs

When judging large-scale repair estimates based solely on the amount, it can easily lead to problems later on.

To carry out appropriate work at a fair price, it is essential to correctly understand how to read the estimate and the points to check.

Here, we will introduce the key points to pay particular attention to when reviewing estimates.

✔️Be cautious of vague expressions

As a reminder, when reviewing estimates, it is necessary to be cautious of vague expressions such as “one set,” “as appropriate,” and “if necessary.”

While these expressions may seem convenient at first glance, they can lead to additional costs due to the unclear scope and quantity of the actual work.

Especially in large-scale repairs, there are many work items, and the accumulation of vague expressions can often result in unexpected increases in costs.

For example, even if it states “exterior wall repair as a set,” if the quantity and scope of the repair areas are not specified, it is impossible to determine how much will be covered.

In such cases, it is important to have the quantities, scope of work, and specifications clearly stated.

✔️Check the expiration date

When reviewing estimates for large-scale repairs, it is crucial to check the expiration date.

Material prices and labor costs can fluctuate due to social conditions and timing, so if you do not know how long the estimate is valid, there is a possibility that the amount will change at the time of contract.

Additionally, if the expiration date is extremely short, it may not allow sufficient time for consideration, making it difficult to make a calm decision.

Some contractors intentionally set shorter deadlines to rush decisions, so caution is necessary.

[By Building Type] Checkpoints for Large-Scale Repair Estimates

When estimating large-scale repairs, the points to check vary depending on the building’s purpose and structure.

In particular, for condominiums, apartments, and factories, the areas prone to deterioration, legal requirements, and repair priorities differ, so caution is needed as overlooking details can easily occur if estimates are reviewed from the same perspective.

Here, we will introduce key checkpoints to pay special attention to in large-scale repair estimates, categorized by building type.

For Condominiums

In the estimate for large-scale repairs of a condominium, it is important to confirm that the entire common area is covered.

In condominiums where many areas are used by all residents, such as exterior walls, rooftops, balconies, hallways, and staircases, omissions in construction can lead to trouble.

In particular, since the costs for scaffolding and temporary construction can become significant, it is essential to verify that the scope and quantities are reasonable.

Additionally, it is also important to check whether the construction content is based on a long-term repair plan and whether the specifications consider future repair cycles.

For Apartments

In the estimate for large-scale repairs of an apartment, it is necessary to focus on whether the content is cost-effective.

Since apartments are smaller in scale compared to condominiums, it is crucial to carefully determine whether excessive specifications or unnecessary items are included.

Moreover, as construction is often carried out while residents are living there, it is also important to check whether noise control and safety measures for shared areas are adequately included.

For Factories

In the estimate for large-scale repairs of a factory, it is essential to confirm that the construction content prioritizes maintaining the building’s functionality.

By checking whether waterproofing performance for exterior walls and roofs, as well as deterioration measures for shutters and openings, are appropriately included, the construction can proceed smoothly and safely.

Additionally, since factories experience significant loads on floors and steel parts depending on their usage, it is necessary to verify that the basis for the repair scope and quantities is clearly stated.

Furthermore, if construction is to be carried out without stopping operations, it is necessary to assess whether the construction methods and scheduling are feasible at the estimation stage.

For large-scale repairs of condominiums, apartments, and factories, trust “Kakeru Koumuten”!

Large-scale repairs vary in optimal construction content depending on the type of building and its usage, so it is important to choose a construction company with abundant experience and flexible responsiveness.

Kakeru Koumuten Co., Ltd. handles a wide range of large-scale repairs not only for residential buildings such as condominiums and apartments but also for commercial buildings like factories and warehouses.

During on-site surveys, we carefully check the deterioration status of the building and clearly distinguish between necessary and unnecessary repairs, allowing you to trust us with your estimates.

We also excel in planning construction schedules that consider the building’s purpose and operational status, enabling us to minimize the impact on residents and business activities.

Estimates and consultations are completely free, so if you are considering large-scale repairs, please feel free to consult with us.

Summary

When estimating large-scale repairs, it is important to not only judge by the amount but also to verify the validity and suitability of the content from multiple perspectives.

In addition to understanding the basic structure and breakdown, by grasping the key points and precautions during comparison, as well as the checklist items specific to each building, you can more easily reduce the risk of unnecessary troubles and additional costs.

Some contractors may submit vague or sloppy estimates, but if you end up hiring such a contractor, the likelihood of regret increases, so caution is necessary.

“I want to hire a reliable construction company”
“I want to consult with a company that provides detailed estimates”

If you are thinking this way, please feel free to consult with Kakeru Koumuten Co., Ltd. once.

We welcome consultations via LINE◎

For roofing, guttering, and exterior work and repairs in Kanagawa, contact Kakerukoumuten Co., Ltd..

AAA is a young company with an average age in the early 20s, but our technology is second to none.

One of our greatest strengths is that we can do all of our own scaffolding, roofing, and painting work. In this industry, where work is generally divided, we are able to provide a complete set of services, which saves time and effort in management and reduces costs. Above all, if there is any trouble, we will come to you right away!

We can confidently declare this. We are the youngest and most friendly renovator in Kanagawa!