How Much Does Roof Repair Cost? Introducing Average Costs and Tips to Reduce Expenses!

Hello! This is Kakeru Koumuten Co., Ltd.!

For those considering roof repairs,

many may be feeling anxious about

“How much will it cost?”

In this article, we will provide a detailed explanation of

Typical methods of roof repair and their cost ranges, Tips to reduce costs

Let’s dive into the details.

Are there several types of roof repairs?

Now, let’s take a closer look at the typical types and methods of roof repairs.

Partial Repairs

If the damage to the roof is not too severe, partial repairs may suffice.

In partial repairs, we perform tasks such as:

・Ridge cap and batten replacement
・Replacement of tiles or slates
・Repair of plaster
・Repairs using sealing

and more.

Ridge cap replacement work

Plaster work

Renovation

Roof remodeling is referred to in technical terms as re-roofing or roof overlay (cover method).

Re-roofing involves removing the existing roof and installing a new one.

The cost may be somewhat higher, but since a new roof can be installed, it allows for a complete repair at once.

Additionally, it can extend the maintenance span, making it potentially more cost-effective in the long run.

The roof overlay (cover method) is a technique where a new roof is placed over the existing roof.

Since there is no need to remove the roof, it can be more cost-effective than re-roofing.

Having a double roof can also improve sound insulation and thermal insulation.

Roof re-roofing work

Roof overlay (cover method)

Painting

Roof painting is done to maintain an attractive appearance.

By painting, you can maintain a beautiful exterior and protect the roof from rain and sunlight.

However, the durability of the roof itself does not increase. Compared to re-roofing and the overlay method, the lifespan is shorter, so repainting and maintenance will be needed sooner.

Unlike the roof overlay method or re-roofing, the lack of manufacturer warranty on the products can also be a concern.

Roof painting work

What is the average cost of roof repairs?

Next, let’s take a closer look at the average cost of roof repairs.

In the case of partial repairs

As mentioned earlier, in the case of partial repairs, the construction is minimal, and the time required is not extensive, so it can sometimes be completed for around several tens of thousands of yen.

However, since scaffolding may be necessary for roof repairs, including these additional costs can lead to expenses exceeding 100,000 yen.
Of course, there are cases where repairs can be done without scaffolding.

In some cases, it may be more cost-effective to do a complete repair rather than partial repairs, so it’s important to consider the overall benefits and drawbacks rather than just focusing on immediate costs.

In the case of ridge repairs

The cost for roof ridge repairs typically ranges from 200,000 yen to 350,000 yen, including scaffolding fees.
In many cases, repairs can be done without scaffolding, which would reduce the cost to around 80,000 yen to 250,000 yen.

However, the cost of roof ridge repairs can vary based on:

・Scope of repairs
・Grade of the internal purlins in the ridge cap

Therefore, please consider the above amounts as rough estimates.

In the case of leak repairs

The costs associated with leak repairs are typically:

・Small-scale work → around 10,000 yen to 50,000 yen
・Medium-scale work → around 50,000 yen to 200,000 yen
・Large-scale work (renovation) → around 600,000 yen to 2,500,000 yen

Leaks can lead to higher repair costs the longer they are left untreated, so we recommend consulting a professional immediately if you notice any irregularities.

In the case of rain gutter and eaves repairs

For rain gutter and eaves repairs, the costs are typically:

・Partial replacement or repair → around 10,000 yen to 100,000 yen
・Repainting → around 50,000 yen to 100,000 yen
・Full replacement → around 200,000 yen to 600,000 yen
・Eaves repair → around 100,000 yen to 300,000 yen

In many cases, rain gutter and eaves repairs do not require scaffolding, which can lower the costs slightly.

In the case of painting

The cost for roof painting is around 300,000 yen to 600,000 yen.

While this estimate is somewhat vague compared to other items, the cost of roof painting can vary significantly based on factors such as the area and the grade of paint used, so it cannot be definitively stated.

If you want to know the exact amount, we recommend requesting an inspection or estimate from a professional.

In the case of roof replacement

Replacing roofing materials tends to be more expensive compared to painting or roof overlay methods.

The cost can vary depending on the type of roofing materials and the area, but it generally ranges from 700,000 yen to 2,700,000 yen, so careful consideration is necessary.

However, as mentioned earlier, while roof replacement may have higher construction costs, it offers a longer lifespan and improved functionality, which can make it more cost-effective in the long run.

In the case of re-roofing

Re-roofing refers to the process of repairing the roof using existing tiles.

This method is ideal when the roofing materials are:

・Japanese tiles
・Western tiles

and are in good condition.

The cost range is around 700,000 yen to 1,300,000 yen.

In the case of the cover method

The cover method involves placing a new roof over the existing one without removal, making it generally more cost-effective than replacement.

Additionally, the construction period can be shortened, making it ideal for those who want to “complete repairs as quickly as possible.”

The cost range is around 500,000 yen to 1,200,000 yen, but it can vary depending on the roofing material, so please consider this as a rough estimate.

Kakeru Koumuten Co., Ltd. Roof Partial Repair Achievements

Here are some examples of partial roof repair projects that Kakeru Koumuten Co., Ltd. has actually completed!

Aoba-ku, Fujisawa City, Kanagawa Prefecture｜Ridge Tile Surface Plaster｜We have implemented measures against leaks through re-plastering of the tile roof!

⇨You can view detailed construction results here!

Tama-ku, Kawasaki City｜Roof Repair｜We have implemented measures against leaks through the replacement of ridge metal!

⇨You can view detailed construction results here!

Tips for Reducing Roof Repair Costs

Now, let’s take a closer look at tips for reducing roof repair costs.

Get Multiple Estimates

To keep roof repair costs down, it is important to obtain estimates from multiple contractors.

Even if the work requested is the same, the amounts quoted by contractors can vary, so it is essential to thoroughly compare several contractors.

By obtaining multiple estimates, you can efficiently gather information on the cost averages, quality of service, and availability of unique services from each contractor, making it easier to narrow down to reputable ones.

When obtaining estimates, aim to request at least three different companies.

Additionally, some people mistakenly request estimates with different specifications from each contractor, but this makes price comparison impossible. It is strongly recommended to obtain estimates with exactly the same specifications.

Request Together with Exterior Painting

To reduce the cost of roof repairs, it is advisable to request them together with exterior painting.

While the total amount may increase when requesting both jobs at the same time, it makes it easier to negotiate prices.

Moreover, if you request each job separately, you will need to set up scaffolding twice, incurring additional costs.

By requesting them simultaneously, you can significantly reduce scaffolding costs, ultimately allowing you to get a better deal.

Understand the Market Rates

To keep roof repair costs down, it is important to understand the market rates.

By keeping the previously mentioned market rates in mind, you will be able to quickly determine whether the quoted amount is in line with the market or above it.

If you are not aware of the market rates, there is a risk of being contracted at a price higher than usual, so caution is necessary.

The Process of Roof Repair at Kakeru Koumuten

1. Inquiry and Consultation

First, please let us know the condition of your roof via phone or email!

2. On-Site Investigation and Estimate

We will arrange a date and time for the on-site investigation based on your preferences and visit your home.

We will check the shape, material, and installation status of the roof and building.

After that, we will create and provide you with an estimate that includes the necessary work and costs!

3. Decision on Whether to Proceed with Roof Repair

Based on the inspection results and estimate, you will make the decision.

Rest assured, we will not pressure you into proceeding with the work.

You can also make your decision after comparing with estimates from other companies!

4. Contract and Scheduling of Work

Once you have thoroughly reviewed the estimate and decided to proceed with Kakeru Koumuten, we will have you fill out the contract (by mail or in person) and discuss your availability to schedule the work dates.

5. Start of Construction

Experienced workers will carry out the construction responsibly! Depending on the content of the work and the influence of the weather, there may be a possibility that the scheduled construction period may shift or extend.

In such cases, we strive to ensure that our construction does not inconvenience our customers or neighbors.

6. Completion of Construction (Inspection and Photo Confirmation Before Handover)

You will be able to confirm the explanation of the repair items and the photos of the constructed roof before the handover.

If you have any concerns at that time, please feel free to let us know!

7. Payment

 

Voices of Customers Who Have Actually Had Work Done

Summary

There are various methods for roof repair, each with its own advantages and disadvantages.

Some may think,

“I want to choose the cheapest method possible.”

However, there are reasons why cheaper methods are priced that way.

For example, while roof painting helps maintain appearance and protects the roof from rain and sunlight, it has a shorter lifespan, which means that re-maintenance may be needed sooner.

A shorter maintenance span means that it will cost more money, so we recommend considering options such as

– Roof Replacement
– Roof Overlay (Cover Method)

That said, among those who lack knowledge about roofs, there are many who are

“not sure which method is best.”

If you are one of those people, please feel free to consult with Kakeru Koumuten.

For more helpful information about other exterior renovations, click here!

LINE consultations are also very welcome◎

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!