Hello!
We are Kakeru Koumuten Co., Ltd., a specialist in roofing, exterior wall painting, and exterior renovations located in Aoba-ku, Yokohama, Kanagawa Prefecture!
We would like to introduce our work on the ‘Single-Family Home Exterior Wall Cleaning’ project conducted in Kawaguchi City, Saitama Prefecture. In this article, you can view the details and process of the exterior renovation carried out by Kakeru Koumuten.
Additionally, you can find the construction costs for exterior wall cleaning through the URL provided in this article!!
Kakeru Koumuten’s exterior wall cleaning is performed without setting up temporary scaffolding, using specialized detergents that do not damage the exterior walls!
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 Kawaguchi City, Saitama Prefecture
一戸建て
Two-story detached house
Exterior wall: Fiber cement siding
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 spray a special cleaning solution for exterior walls from the top down using a machine that mixes the detergent and a specialized extendable brush!
The nozzle of the specialized brush sprays water and detergent, reaching even three-story buildings! Rain gutters and piping will also be cleaned simultaneously!
In exterior wall cleaning, we use gentle water pressure instead of high-pressure washing. The brushes we use are specially designed to clean gently, removing dirt without damaging the exterior walls.
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 differentiate the detergents used based on the type of dirt, such as rain stains, blackening, and moss!
*Caution is needed with moss-resistant detergents, as they can harm or kill plants and greenery if they splash!
Even if we cannot use moss-resistant detergents, cleaning is still possible, so please rest assured!
We thoroughly remove blackening and moss from the exterior walls!
3. Water Washing
After completing the detergent application on the entire exterior wall, we proceed to rinse with water from the top down.
We carefully rinse to ensure no detergent is left behind!
We thoroughly wash away the detergent!
The exterior wall we cleaned this time had noticeable blackening and green moss, but after performing the exterior wall cleaning, the blackening and moss were 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 buildings 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.
Additionally, 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 appearance 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 (washing) can generally be completed in just one day!
4. No Noise
Since only electric machines are used, the lack of loud noises or disturbances is another benefit of exterior cleaning!
Disadvantages of Exterior Cleaning
On the other hand, there are also disadvantages to exterior cleaning (washing)!
1. Certain Costs Incurred
First, it should be noted that cleaning incurs certain costs.
If you hire a professional, the cleaning work, the detergents used, and painting will all incur 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 Surroundings is Necessary
During the cleaning process, there may be impacts on the building and surrounding environment. The detergents and water used for cleaning can splash, potentially dirtying nearby cars, plants, and the ground.
Professional contractors will always take surrounding considerations into account 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 sheets, ensuring maximum consideration!
3. Cannot Be Performed on Severely Deteriorated Exteriors
Exteriors with severely deteriorated paint may risk peeling off the coating.
If the sealing material in the joints is cut, it can also lead to leaks, making it impossible to perform the work.
Kakeru Koumuten Co., Ltd. specializes in exterior renovations, so we will thoroughly investigate the condition of the exterior and joints to confirm whether work can be performed!
As you can see, exterior cleaning (washing) has both advantages and disadvantages. However, regular cleaning can maintain the cleanliness of the building’s appearance and enhance durability, so it is recommended to perform it at the appropriate timing!
We also offer carport cleaning and exterior cleaning services!

Kakeru Koumuten Co., Ltd. not only offers exterior wall cleaning but also provides cleaning services for carports and exterior structures!
For example, this plan is recommended for those who might think, “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 accumulate in roof and exterior wall painting projects 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!!
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!
On-site surveys and estimates are free, so please feel free to consult with Kakeru Koumuten!
About Cleaning Costs

| Minimum Price | 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 streaks with a special brush!

| Minimum Charge | 15,000 yen |
|---|---|
| Concrete for Parking Lots and Other Areas | 500 yen–550 yen/㎡ |
| Exterior Cleaning of Fences and Other Structures | 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 click here⇩
Leave your exterior wall cleaning in Kawaguchi City, Saitama Prefecture to Kakeru Koumuten!
Our company is based in Aoba-ku, Yokohama, and has extensive experience in cleaning and washing exterior walls and exteriors in Kanagawa Prefecture, Tokyo, Chiba Prefecture, and Saitama Prefecture.
If the building is relatively new or if the exterior wall 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 an unsuitable chemical for the substrate can lead to discoloration or fading, which can actually lower the aesthetic appeal.
Kakeru Koumuten has extensive experience in cleaning and washing a wide range of exterior walls and exteriors.
Our company specializes in exterior renovations, so we are happy to assist not only with cleaning but also with exterior wall painting, exterior painting, waterproofing work, and other partial painting jobs.
“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 exterior work, 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 try DIY roof and exterior wall painting! 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, and Saitama Prefecture.
We can also accommodate some areas in Yamanashi Prefecture and Shizuoka Prefecture, so please feel free to consult with us!
List of Areas in Saitama Prefecture
Ageo City / Asaka City / Ina Town / Iruma City / Ogano Town / Ogawa Town / Okegawa City / Ogoshi Town / Kasukabe City / Kazo City / Kamikawa Town / Kamisato Town / Kawaguchi City / Kawagoe City / Kawajima Town / Kitamoto City / Gyoda City / Kuki City / Kumagaya City / Kounosu City / Koshigaya City / Saitama City / Sakado City / Satte City / Sayama City / Shiki City / Shiraoka City / Sugito Town / Soka City / Chichibu City / Tsurugashima City / Tokigawa Town / Tokorozawa City / Toda City / Nagatoro Town / Namegawa Town / Niiza City / Hasuda City / Hatoyama Town / Hanyu City / Hanno City / Higashichichibu Village / Higashimatsuyama City / Hidaka City / Fukaya City / Fujimi City / Fujimino City / Honjo City / Matsubushi Town / Misato Town / Minano Town / Miyashiro Town / Miyoshi Town / Moroyama Town / Yashio City / Yokose Town / Yoshikawa City / Yoshimi Town / Yorii Town / Arashiyama Town / Wako City / Warabi City
Summary
The above is our track record for exterior wall cleaning in Kawaguchi City, Saitama Prefecture.
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 our “cost, quality, and efficiency” in exterior renovation work are unmatched 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 appropriate proposals that align with cost performance and our customers’ future life plans!
“I’m glad I asked!” We take every request seriously to ensure you feel this way.
We look forward to your inquiries. Thank you very much.
Useful information about exterior renovations can be found here!
・【Tama-ku, Kawasaki】|Rain Gutter Repair|We performed partial replacement repairs on damaged rain gutters!
・【Aoba-ku, Yokohama】|We conducted exterior wall cleaning without the need for scaffolding!
・【Kita-ku, Yokohama】|We conducted exterior wall cleaning 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 Roof Overlay Costs|Kakeru Koumuten’s Roof Construction Plan!
・About Exterior Wall Painting Costs|Kakeru Koumuten’s Exterior Wall Painting Plan!
・About Leak Repair Costs|Kakeru Koumuten’s Leak Repair Plan!
・Latest Edition|Subsidies and Grants Available for Renovations!
・What is Kasagi? A detailed explanation of the role and repair methods of Kasagi!
・Renovation Store in Kanagawa Prefecture, Yokohama| What is Roof Overlay (Roof Cover Method)?
LINE consultations are also 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!


