If you are looking for an exterior wall cleaning contractor in
Ota-ku, Tokyo, contact Kakeru Koumuten
Kakeru Koumuten is engaged in many exterior wall cleaning and washing projects in Ota-ku, Tokyo!
The two major benefits of exterior wall cleaning are as follows!
“No need for temporary scaffolding”
“Improves the aesthetics of the building at a lower cost compared to exterior wall painting”
That said, exterior wall cleaning is still a relatively unknown service.
In this article, we will also introduce case studies, benefits, precautions, and costs related to exterior wall cleaning in Ota-ku!
Estimates and consultations are free!
We welcome competitive quotes!
What is exterior wall cleaning…
Exterior wall cleaning is one method of regular maintenance to keep the building’s appearance clean and to prolong the life of the exterior materials.
As shown in the photo above, even if the paint film on the exterior wall is in good condition, rain streaks, dark spots, and moss can occur due to sunlight and structure.
Typically, when the exterior wall becomes dark or moss grows, the common options are “exterior wall painting” or “high-pressure washing of the exterior wall”.
If it’s within reach, such as around the first floor, it may be possible to clean using a brush or sponge with a household cleaning machine, but it becomes quite difficult for the second or third floors.
Are you facing these issues with dirty exterior walls?
“I painted 5 years ago, and while it’s not time for a new paint job, I’m concerned about one side getting dirty…”
“Painting is expensive, so I don’t plan to do it yet, but I want to clean the exterior at a lower cost…”
“It’s a three-story building, but can it be cleaned without scaffolding…?”
“Will this dirt come off with just cleaning…?”
“I’m worried that the detergent will discolor the exterior walls.”
If you have concerns like these, Kakeru Koumuten’s exterior cleaning can solve your problems!
Why is Kakeru Koumuten’s exterior cleaning so popular in Ota-ku?
Here are the “7 points” that make Kakeru Koumuten’s exterior cleaning well-received in Ota-ku!
Point 1 Overwhelmingly cost-effective
Typically, exterior painting and high-pressure washing require scaffolding, which inevitably incurs high costs.
Kakeru Koumuten’s exterior cleaning does not require temporary scaffolding, allowing you to restore the beauty of your exterior at about 1/10 the cost of exterior painting!
Point 2 Cleaning without damaging the exterior!
We use gentle water pressure instead of high pressure for cleaning. The brushes used are specialized and clean gently, removing dirt without damaging the exterior.
The detergents used are formulated to prevent discoloration of the sashes and exterior walls!
We also differentiate the detergents used based on the type of dirt, such as rain stains, black marks, and moss!
*Please note that detergents strong against moss can harm or kill plants if they splash on them, so caution is necessary! Even if we can’t use a moss-resistant detergent, cleaning is still possible, so rest assured!
Point 3 We can clean the exterior walls with minimal inconvenience to the neighbors!
By using a special brush to apply a gentle water flow, it is less likely to splash compared to using a hose directly!
The detergent used also has little to no odor.
The machine noise is relatively quiet as it is electric.
That said, if the building is close by, there may still be some inconvenience, so
before the work begins, we always make sure to greet the neighbors on your behalf.
Additionally, if there are cars nearby, we will protect them with car seat covers!
Point 4 The construction period is short!!
For a typical single-family home exterior cleaning, it often can be completed in just one day, even for full cleaning!
Since the work is primarily done outdoors, cleaning can be performed even if you are not at home!
Of course, we will take detailed construction photos and send them to you by mail later.
Point 5 We can clean more than just the exterior walls!
In addition to the exterior walls, we can also clean the following areas!
・Exterior structures (blocks and tiles)
・Concrete surfaces (like parking lots)
・Carports
・Roofs and solar panels (some restrictions may apply)
If you have other areas of concern, please feel free to consult with us!
Point 6 We will conduct a site survey before construction!
Before construction, we will check the condition of the exterior walls and joints and visit the neighbors to greet them.
We will also confirm that there are no issues for the cleaning to proceed smoothly on the day of the work.
Point 7 Estimates can be provided using photos or drawings!
We can communicate via LINE or email, and provide estimates based on photos and drawings (floor plans and elevation drawings) of the building!
In cases where it is difficult to provide an estimate based on photos or drawings, we will visit the site for an inspection.
Estimates will be sent within 1 to 2 business days after receiving the photos or drawings!
What should you be aware of when cleaning exterior walls?
Next, we will explain the “5 points to be cautious about” during exterior wall cleaning!
Caution 1 Severely deteriorated exterior walls
Severely deteriorated siding or mortar walls with many cracks may not be able to be cleaned.
The reason for this is to prevent leaks and peeling of the paint film.
Caution 2 Some stains may not come off…
Stains from years of neglect, such as blackening or rain streaks, may not be removed even with cleaning.
In particular, it is difficult to completely remove rain streaks and blackening from textured wall finishes like Jolly Pat.
If you try to forcibly remove blackening or rain streaks from Jolly Pat walls, it may cause discoloration or damage, so we will use special agents to clean gently as much as possible. 
As shown above, even when using special chemicals on textured wall finishes like Jolly Pat, some rain streaks may remain, so caution is necessary.
Depending on sunlight and location, it is recommended to clean every 3 to 5 years without leaving stains!
Caution 3 Severe deterioration of joints
If the joints of the siding exterior walls are severely deteriorated, it may lead to leaks, and therefore, we may not be able to perform the work.
Note 4 There may be cases where work cannot be performed due to the structure of the building.
It may be difficult to perform work in areas such as above eaves, above bay windows, or extremely narrow spaces.
We will confirm this during the on-site inspection.
Note 5 We will need to use electricity and water!
We will borrow electricity and water during the cleaning process.
However, if there is no electricity or water outside, additional costs may be incurred,
but we can also provide a generator or tank!
About the cleaning costs in Ota-ku

| Minimum Charge | 15,000 yen |
|---|---|
| Single-Story House | 500 yen~700 yen/㎡ |
| Two-Story Building | 550 yen~750 yen/㎡ |
| Three-Story Building | 600 yen~800 yen/㎡ |
・We will wash off moss, black stains, and rain streaks from the exterior walls using a special brush!
We will clean plastered exterior walls using a special cleaning method!
The cleaning method for plastered exterior walls with Jolly Pat finish differs from that of siding and other materials.

By repeating the application of chemicals and washing, we gradually remove the dark stains!
Due to the increased number of processes, the costs may be higher compared to other exterior walls, and there may be cases where stains cannot be completely removed.

| Minimum Fee | 15,000 yen |
|---|---|
| Concrete for Parking Lots and Other Areas | 500 yen–550 yen/㎡ |
| Cleaning of Walls and Other Exterior Structures | 500 yen–600 yen/㎡ |
| Carport Panel Cleaning | 500 yen–600 yen/㎡ |
Examples of Cleaning Costs
The following are examples of costs for exterior wall cleaning and floor washing!
・Two-story detached house Area 150㎡×Unit price 600 yen=90,000 yen
・Parking lot floor concrete Area 30㎡×Unit price 500 yen=15,000 yen
Total amount 105,000 yen
That will be the cost!
If you have any other areas of concern, please feel free to consult with us!
We can also clean signs and warehouses, in addition to exterior walls and exteriors!
Estimates are completely free!
Examples of Exterior Wall Cleaning Work
| Construction Details |
| Exterior Wall Cleaning |
| Building Information |
| ・Single-family home ・Two-story ・Mortar exterior wall with Jolly Pat finish |
| Construction Period |
| 1 day |
| Price Range |
| 50,000 yen |
| Inquiry Details |
| We received an inquiry from the management company stating, “We would like to request exterior wall cleaning for a senior facility.” |
| Proposal Details |
| Since you requested cleaning of only the white siding on the front side, we have cleaned only the white siding on one exterior wall as per your request. |
| Completion Date |
| July 2024 |
Service Areas
We can provide exterior wall cleaning services throughout Ota-ku, Tokyo!
List of Areas in Ota-ku, Tokyo
Ikegami, Ota-ku / Ishikawacho, Ota-ku / Unoki, Ota-ku / Omorinaka, Ota-ku / Omorihoncho, Ota-ku / Omorieast, Ota-ku / Omorinishi, Ota-ku / Omoriminami, Ota-ku / Omorikita, Ota-ku / Kamata, Ota-ku / Kamatahoncho, Ota-ku / Kamiikedai, Ota-ku / Kitakojiya, Ota-ku / Kitachinbo, Ota-ku / Kitabamagome, Ota-ku / Kitarincho, Ota-ku / Kugahara, Ota-ku / Keihinjima, Ota-ku / Sanno, Ota-ku / Shimomaruko, Ota-ku / Jonanjima, Ota-ku / Showajima, Ota-ku / Shinkamata, Ota-ku / Tamagawa, Ota-ku / Chidori, Ota-ku / Chuo, Ota-ku / Denenchofu, Ota-ku / Denenchofuhoncho, Ota-ku / Denenchofuminami, Ota-ku / Tokai, Ota-ku / Nakaikegami, Ota-ku / Nakamakome, Ota-ku / Nakaro, Ota-ku / Nishikamata, Ota-ku / Nishikojiya, Ota-ku / Nishibamagome, Ota-ku / Nishirincho, Ota-ku / Nishirokugo, Ota-ku / Haginaka, Ota-ku / Haneda, Ota-ku / Haneda Asahicho, Ota-ku / Haneda Airport, Ota-ku / Higashikamata, Ota-ku / Higashikojiya, Ota-ku / Higashibamagome, Ota-ku / Higashirincho, Ota-ku / Higashiyaguchi, Ota-ku / Higashiyukigaya, Ota-ku / Higashirokugo, Ota-ku / Furusato no Hamabe Park, Ota-ku / Heiwajima, Ota-ku / Heiwa no Mori Park, Ota-ku / Honhaneda, Ota-ku / Minamikamata, Ota-ku / Minamikugahara, Ota-ku / Minamichinbo, Ota-ku / Minamibamagome, Ota-ku / Minamiyukigaya, Ota-ku / Minamirokugo, Ota-ku / Yaguchi, Ota-ku / Yukigaya Otsuka-cho
About Kakeru Koumuten
Kakeru Koumuten Co., Ltd. is a remodeling company based in Aoba-ku, Yokohama, Kanagawa Prefecture, specializing in roofing, painting, scaffolding, and more, all performed with in-house construction.
Company Introduction


● We store scaffolding materials!
Since we can set up temporary scaffolding ourselves, we can respond quickly to roof repairs.


● We store materials and tools related to roofing and painting work!
We have all the necessary components for leak repairs, allowing us to respond quickly!
Customer Reviews
Leave your exterior wall cleaning in Ota-ku, Tokyo to Kakeru Koumuten Co., Ltd.!
This concludes our information on exterior wall cleaning!
Until now, many people may have thought,
“There’s no choice but to build scaffolding for washing or exterior wall painting…”
and gave up on issues like moss, mold, and rain streaks on the exterior walls. However, from now on, it is possible to keep your building clean while reducing costs with exterior wall cleaning!
If you have any questions or concerns about exterior wall cleaning, please feel free to consult us!
In addition to exterior wall cleaning, our company is strong in exterior renovations, so if you have any issues with roofs, rain gutters, or exterior walls, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
We carry out everything from temporary scaffolding construction to roof work and exterior wall painting completely in-house. We are confident that we won’t be outdone by other companies in terms of cost, quality, and efficiency in exterior work!
We welcome competitive estimates!
You’ll be glad you chose us! We take every request seriously to ensure your satisfaction.
Estimates and inspections are free!
If our construction plan is inferior to other companies, please feel free to decline!
We do not charge any cancellation fees or travel expenses, so please rest assured!
We look forward to your inquiries. Thank you very much.
We also welcome consultations via LINE◎
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!


