Hello!
We are Kakeru Koumuten Co., Ltd., specializing in roofing, exterior painting, and exterior renovations in Aoba-ku, Yokohama, Kanagawa Prefecture!
Here, we introduce the results of the ‘Exterior Wall Cleaning for Detached Houses’ project we conducted in Setagaya-ku, Tokyo. In this article, you can find details and processes of the exterior renovations carried out by Kakeru Koumuten.
Additionally, you can view the construction costs for exterior wall cleaning through the URL provided in this article!!
We used specialized cleaning agents for exterior wall washing, enhancing the aesthetic appeal.
We also provide detailed explanations of the price range and construction period. Please refer to this information for your home’s exterior renovation.
Thank you very much for choosing Kakeru Koumuten!
Construction Data for Setagaya-ku, Tokyo
・一戸建て
・屋根カバー工法
・雨樋交換
Two-story detached house
Exterior wall: Concrete exterior wall
Age: 5 years
Exterior Wall Cleaning (Exterior Wall Cleaning) Procedure
1. Preparation
If there are plants or vehicles nearby, we will cover them before starting the cleaning!
2. Exterior Wall Cleaning (Exterior Wall Cleaning) & Floor Cleaning
We will proceed with cleaning the exterior walls and floor in order!
We will spray a special cleaning solution for exterior wall cleaning from the top down using a machine that mixes the detergent and a special extendable brush!
The tip of the special brush sprays water and detergent, reaching even three-story buildings! Rain gutters and piping will also be cleaned!
In our exterior wall cleaning service, we use gentle water pressure instead of high-pressure washing. The brushes we use are specially designed to clean gently, ensuring that the exterior walls are not scratched while effectively removing dirt.
Since we only use electric machines, there is no loud noise or disturbance during the work!
The detergents we use are formulated to prevent discoloration of the sashes and exterior walls!
We also vary the detergents used depending on the type of dirt, such as rain stains, blackening, and moss!
* Detergents that are effective against moss can harm or kill plants and shrubs if they come into contact, so caution is necessary!
Even if we cannot use moss-resistant detergents, rest assured that exterior wall cleaning is still possible!
We will thoroughly remove blackening and moss from the exterior walls!
3. Water Washing

After completing the detergent application on the entire exterior wall, we will proceed to rinse with water from the top down.
We will rinse carefully to ensure no detergent is left behind!
We will thoroughly wash away the detergent!
The exterior wall we cleaned this time had noticeable blackening, but after performing the exterior wall cleaning, the blackening was beautifully removed, giving it a brighter overall impression!
Thank you for trusting Kakeru Koumuten Co., Ltd.!
☞Please check out our other painting project results here!
What are the advantages and disadvantages of exterior wall cleaning?
Exterior wall cleaning is a cost-effective maintenance method that restores the aesthetic appeal of a building at a low cost. Here are the advantages and disadvantages!
Advantages of Exterior Wall Cleaning
First, let’s introduce the advantages of exterior wall cleaning!
1. The building maintains a clean appearance and looks beautiful
Over time, dirt, mold, and moss tend to accumulate on exterior walls, but regular cleaning can remove these contaminants. By performing exterior wall cleaning, the entire building will have a clean and beautiful appearance.
Furthermore, as the building’s exterior becomes more attractive, the surrounding environment also appears brighter and cleaner.
Unlike high-pressure washing, exterior wall cleaning can be done without damaging the walls.
2. Low Cost
Since cleaning can be done without setting up temporary scaffolding, it is possible to restore the aesthetics at a lower cost compared to exterior painting and high-pressure washing!
3. Short construction period
Unlike high-pressure washing or exterior painting, exterior cleaning (exterior washing) can generally be completed in just one day!
4. No noise
Since only electric machines are used, the lack of loud sounds or noise is also an advantage of exterior cleaning!
Disadvantages of Exterior Cleaning
On the other hand, there are also disadvantages to exterior cleaning (exterior washing)!
1. Certain costs are involved
First, it should be noted that cleaning incurs certain costs.
If you hire a professional contractor, the cleaning work, the detergents used, and any painting will incur certain costs, so it is necessary to plan your budget in advance.
Kakeru Koumuten Co., Ltd. offers free estimates, so please feel free to consult with us!
2. Consideration for the surroundings is necessary
During the cleaning process, there may be an impact on the building and the surrounding environment. The detergents and water used for cleaning may splash, potentially dirtying nearby cars, plants, and the ground.
Professional contractors will always take the surrounding environment into consideration during their work, but if you are doing the cleaning yourself and are not experienced, it is even more important to be mindful of the surrounding environment during the cleaning process.
Therefore, our company conducts preliminary site surveys and greetings to prevent troubles!
If vehicles are nearby, we will protect them with car seat covers and ensure maximum consideration!
3. Not applicable for severely deteriorated exteriors
If the paint film on the exterior is severely deteriorated, there is a possibility that it may peel off.
If the sealing material in the joints is damaged, it can also lead to leaks, making it unsuitable for cleaning.
Kakeru Koumuten Co., Ltd. specializes in exterior renovations, so we will thoroughly investigate the condition of the exterior and joints to confirm whether cleaning is possible!
As you can see, exterior cleaning (exterior washing) has both advantages and disadvantages. However, regular cleaning can maintain the cleanliness of the building’s appearance and enhance its durability, so we recommend doing it at the appropriate timing!
We also offer carport cleaning and exterior cleaning!

Kakeru Koumuten Co., Ltd. not only offers exterior wall cleaning but also provides cleaning services for carports and exterior structures!
For example, this is a recommended plan for those who are thinking, “It’s not the right time for exterior wall painting, but I would like to request exterior wall cleaning and exterior structure cleaning…”
One reason why costs can add up for roof and exterior wall painting work is that “scaffolding needs to be set up.” However, with Kakeru Koumuten’s exterior wall cleaning (exterior wall washing), there is no need for scaffolding, so you won’t incur scaffolding costs!!
Of course, partial cleaning such as exterior wall cleaning only, cleaning of one side of the exterior wall only, or exterior structure cleaning only is also very welcome!
Since on-site surveys and estimates are free, please feel free to consult with Kakeru Koumuten!
About Cleaning Costs

| Minimum Charge | 15,000 yen |
|---|---|
| Single-Story House | 550 yen~750 yen/㎡ |
| Two-Story Building | 650 yen~850 yen/㎡ |
| Three-Story Building | 700 yen~880 yen/㎡ |
・We will wash the exterior walls of moss, stains, and rain marks with a special brush!

| Minimum Charge | 15,000 yen |
|---|---|
| Concrete for Parking Lots | 500 yen–550 yen/㎡ |
| Exterior Cleaning of Walls and Fences | 500 yen–600 yen/㎡ |
| Carport Panel Cleaning | 500 yen–600 yen/㎡ |
⇩For detailed information about the costs of Kakeru Koumuten’s exterior wall cleaning, please check here⇩
Leave your exterior wall cleaning in Setagaya-ku, Tokyo to Kakeru Koumuten!
Our company is based in Aoba-ku, Yokohama, and has extensive experience in cleaning and washing exteriors in Kanagawa Prefecture, Tokyo, Chiba Prefecture, Saitama Prefecture, and Shizuoka Prefecture.
If the building is relatively new or if the exterior is only dirty, often cleaning (washing) alone can restore its appearance without the need for painting or replacement.
Additionally, one of the benefits of cleaning is that it can be done at a lower cost compared to painting or replacement work.
If dirt and stains are left unattended, there is a possibility that no matter how strong the chemicals used, the stains may become impossible to remove, so we recommend early cleaning.
Moreover, there are various types of chemicals, and using inappropriate ones for the substrate can cause discoloration or fading, which can actually lower the aesthetic appeal.
Kakeru Koumuten has a wealth of experience in cleaning and washing numerous exteriors and structures.
“I want to remove moss from the exterior wall,” “I just want to know the estimate,” “I want to know if this stain can be removed,” if you have any concerns or questions, please feel free to contact us!
We also have pricing plans for exterior wall and structure work available, so please take a look if you’re interested!
・Exterior Wall Painting and Sealing Work Price List
・DIY Painting Plan | For those who want to paint the roof and exterior walls themselves! We will only set up the scaffolding!
・Construction Menu | Exterior Work Plan | Costs for Exterior, Tile, and Concrete Work
Areas Available for Exterior Wall Cleaning
Our company is based in Aoba-ku, Yokohama, and our main service areas for exterior wall cleaning are Kanagawa Prefecture, Tokyo, Chiba Prefecture, Saitama Prefecture, and Shizuoka Prefecture.
We can also accommodate some areas in Yamanashi Prefecture, so please feel free to consult with us!
List of Areas in Setagaya-ku, Tokyo
Akatsutsumi, Setagaya-ku / Ikejiri, Setagaya-ku / Unanene, Setagaya-ku / Umegahara, Setagaya-ku / Okura, Setagaya-ku / Ohara, Setagaya-ku / Okamoto, Setagaya-ku / Okusawa, Setagaya-ku / Oyamadai, Setagaya-ku / Kasuya, Setagaya-ku / Kamata, Setagaya-ku / Kamiyama, Setagaya-ku / Kamikitasawa, Setagaya-ku / Kamisoshigaya, Setagaya-ku / Kamenoge, Setagaya-ku / Kamiyoga, Setagaya-ku / Kitakusuyama, Setagaya-ku / Kitazawa, Setagaya-ku / Kitami, Setagaya-ku / Kinuta, Setagaya-ku / Kinuta Park, Setagaya-ku / Kyuta, Setagaya-ku / Kyodo, Setagaya-ku / Komazawa, Setagaya-ku / Komazawa Park, Setagaya-ku / Gotokuji, Setagaya-ku / Sakura, Setagaya-ku / Sakuragaoka, Setagaya-ku / Sakurashinmachi, Setagaya-ku / Sakurajōsui, Setagaya-ku / Sangenjaya, Setagaya-ku / Shimoma, Setagaya-ku / Shinmachi, Setagaya-ku / Seijo, Setagaya-ku / Seta, Setagaya-ku / Setagaya, Setagaya-ku / Soshigaya, Setagaya-ku / Taishido, Setagaya-ku / Tamagawa, Setagaya-ku / Tamagawadai, Setagaya-ku / Tamagawadenenchofu, Setagaya-ku / Tamazutsumi, Setagaya-ku / Daisawa, Setagaya-ku / Daita, Setagaya-ku / Chitosedai, Setagaya-ku / Tsurumaki, Setagaya-ku / Todoroki, Setagaya-ku / Nakacho, Setagaya-ku / Noge, Setagaya-ku / Nozawa, Setagaya-ku / Hachiman-yama, Setagaya-ku / Hanegi, Setagaya-ku / Higashitamagawa, Setagaya-ku / Fukazawa, Setagaya-ku / Funabashi, Setagaya-ku / Matsubara, Setagaya-ku / Mishuku, Setagaya-ku / Minami-Karasuyama, Setagaya-ku / Miyasaka, Setagaya-ku / Yoga, Setagaya-ku / Wakabayashi, Setagaya-ku
Summary
This concludes our track record of exterior wall cleaning in Setagaya-ku, Tokyo.
As mentioned above, we can handle not only exterior wall cleaning but also exterior structures, concrete floors, carports, and roof cleaning.
Currently, there are still few contractors for exterior wall cleaning, but Kakeru Koumuten Co., Ltd. specializes in this service, so please leave it to us!
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exterior structures, please consult with Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
Kakeru Koumuten is a remodeling company strong in exterior renovations, and we carry out complete in-house construction from temporary scaffolding to roof work and exterior wall painting.
We are confident that in terms of “cost, quality, and efficiency”, we do not fall behind compared to other companies!
We are confident in our exterior renovations, so we welcome competitive estimates!
We offer comprehensive construction guarantees and aftercare maintenance, and we have received positive feedback for our cost performance and appropriate proposals that align with our customers’ future life plans!
“I’m glad I asked them!” We take every request seriously to ensure you feel this way.
We look forward to your inquiries. Thank you very much.
For useful information about exterior renovations, click here!
・[Setagaya Ward, Tokyo] | Foundation Repair | We performed basic mortar repair and basic painting!
・[Setagaya Ward, Tokyo] Roof Leak Repair | We conducted roof overlay work and removed the skylight!
・[Kita Ward, Yokohama] | We performed exterior wall cleaning without the need for scaffolding!
・[Ota Ward, Tokyo] | We conducted exterior wall cleaning at a senior facility without the need for scaffolding!
・Painting DIY Plan! For those who want to try DIY roof and exterior wall painting! We will only set up the scaffolding!
・About the costs of roof overlay | Kakeru Koumuten’s roof construction plan!
・About the costs of exterior wall painting | Kakeru Koumuten’s exterior wall painting plan!
・About the costs of leak repairs | Kakeru Koumuten’s leak repair plan!
・Latest Edition | Grants and subsidies available for renovations, and reduction systems!
・What is a kasagi? We will explain the role of kasagi and how to repair it in detail!
・Renovation store in Yokohama, Kanagawa Prefecture | What is roof overlay (roof cover method)?
LINE consultations are also very welcome◎
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!


