An overgrown yard can overwhelm your thinking. Make an organized list of chores before seeking out a cleanup company. Organize it by chore -- everything to be pruned or cut back, for example. Another organizing tool can be by area: patio, pool area, children's play area. This can be useful if you're not sure exactly what needs to be done or what you can afford.
Yard services are businesses subject to state laws. Your local or county government commerce, business or licensing office can tell you about licensing and insurance requirements in your state. Your local county extension service can tell you about general and specific regulations applying to yard clean-up services, like pesticide licensing.
Local advertising, business-page listings and local nurseries are all good sources of clean-up company listings. Check with neighbors for recommendations. Contact your local Better Business Bureau and department of consumer affairs to determine any complaints against companies you are considering.
Contact possible companies for a visit to your home and to provide an estimate. Ask lots of questions and keep notes, especially if you are comparing companies. Be cautious about any unwanted services you must accept to get the services you want; reconditioning your pest-damaged lawn should not depend on a full season of professional mowing. Ask for contacts with satisfied customers.
Expect a written estimate and written agreement/contract for all work to be done. The agreement should include the time frame in which work will be done, along with a payment schedule. A written agreement protects both your rights and those of the company you hire.