To find a good exterior cleaning company, follow these steps:

1. Research: Use online directories, search engines, and review websites to find local companies that offer exterior cleaning services.
2. Get Recommendations: Ask friends, family, and neighbors for recommendations of exterior cleaning companies they have used and liked.
3. Verify Credentials: Check the company’s website, licensing, and insurance information to ensure they are legitimate and properly equipped to handle exterior cleaning projects.
4. Compare Services: Contact several companies and compare the services they offer, their prices, and their schedules to find the best fit for your needs.
5. Read Reviews: Read online reviews and ratings to get a sense of the company’s reputation, customer service, and quality of work.
6. Request Quotes: Get detailed quotes from the companies you are considering, so you can compare their prices and services side-by-side.
7. Choose Wisely: Based on the information you have gathered, select the exterior cleaning company that best meets your needs and budget.

Hiring the cheapest exterior cleaning company may not always be the best idea for several reasons:

1. Quality of Work: The cheapest company may cut corners and not provide the level of cleaning and attention to detail that you require.
2. Equipment: They may not have the proper equipment, training or experience to safely and effectively clean the exterior of your property.
3. Insurance: They may not have proper insurance coverage, which could leave you liable in case of an accident or damage to your property.
4. Customer Service: The cheapest company may not prioritize customer service, leaving you without support if you have any questions or concerns.
5. Reputation: They may not have a good reputation, as evidenced by online reviews or word of mouth, which could reflect on the quality of their work.
6. Guarantees: They may not offer guarantees or warranties for their services, leaving you without any recourse if you are unsatisfied with their work.

It’s important to consider more than just the price when selecting an exterior cleaning company. A slightly higher cost may be worth it in the long run to ensure that your property is cleaned effectively and safely, by a company with a good reputation, proper insurance and guarantees.