In-house cleaning services have been in trend for long. People consider it an economical solution to keep the commercial space clean and tidy. It also offers a flexible solution for cleanliness needs of a commercial environment. However, the in-house services are losing their ground to better commercial cleaning services. Trained professionals, insured service, in time completion and expert workers add to the benefits offered by these services. Therefore, it is imperative to choose the best commercial cleaning services based on the following checklist.Type of serviceNot every cleaning service is alike. Even if you are looking for a service provider for commercial space, you need to be very specific about your requirement. Therefore, it is necessary that you analyze what type of service you require. And, once, you have decided about the type of service, and then only you can start searching for a service provider. You might have diverse cleaning requirements for your commercial space or some type of expert service, like pressure cleaning or carpet cleaning and therefore, it is advised to choose a service provider that can cater to all your cleaning needs.Insurance and licenseOnce you have zeroed in at your requirements, you have to search for a service provider that caters to your cleaning requirements. You should check the license of the service provider you wish to employ. It is in your interest to go through all the required license papers. Insurance offered by the company to the client and to the workers are different and therefore, while checking out the insurance papers, you should insist on checking out the original papers.ReferenceThe reviews and the references about the company or the service provider that you are to hire should be paid proper attention. It is even better if you can ask from them about the latest cleaning work and if possible, then pay a visit to the site and analyze the quality of the work.Time frameWhen you rely on the commercial cleaning services for cleaning of commercial area or office area, you do not have any in-house cleaning personnel. Thus you should ensure that the service you have hired is punctual; thereby, keeping your commercial space clean and tidy.ContractOnce you have finalized a service provider, you should seal the deal with a contract. The terms of services, frequency of service, charges for any extra work and all other types of work related clauses should be included in the contract of service. If you employ a service provider without a contract, then he might not follow the terms of service that was agreed upon. Therefore, it is better to have a contract signed with the commercial cleaning service provider.You can further add several other points in the checklist, however, the aforementioned points are a must and you should consider it while choosing the best commercial cleaning service.