Although parents often teach their children not to judge a book by its cover, the reality is that most consumers do. In fact, a November 2014 Harris Poll revealed that 81 percent of adults would be more likely to trust a home service professional wearing a uniform.

The first impression is often the most lasting. Harvard Business School social psychologist Amy Cuddy found that when people develop first impressions, they are primarily evaluating the trustworthiness and confidence of that individual.

By avoiding the following image flaws, you can help customers feel more secure and confident about doing business with you.

1. No uniform

As security has become heightened in recent years, most commercial properties, whether it's a manufacturing facility or bank, will require contractors to show multiple forms of identification.

A uniform program helps to distinguish service professionals from trespassers, putting customers at ease. If a customer is greeted by an employee without a uniform, there's a good chance you may lose their business for good.

2. A soiled or wrinkled appearance

Customers are much more likely to remember a service technician's appearance than his/her skills after the visit. A well-uniformed employee has the power to elevate the company's brand by portraying a consistently clean, reliable and professional image to customers.

The 2014 Harris Poll revealed that 72 percent of U.S. adults would be more likely to trust a home service professional wearing a clean, unwrinkled uniform than a professional wearing a dirty, wrinkled uniform.

3. Image inconsistency

Too often, leaving employees responsible for the laundering, care, repair and/or replacement of their uniforms can lead to an overall inconsistency in image. Not every employee will care for his or her garments in the same way, resulting inconsistency in coloration and fit.

Further, frequent exposure to dirt and grime are likely to result in stains that can make your employees appear less than professional.

4. The "Goldilocks and the Three Bears" problem

One size does not always fit all. Ill-fitting apparel can leave a lasting impression — unfortunately, it's often not a good one. Apparel should be individually fit for each employee to ensure the right look and fit.

Better fitting apparel makes service professionals look and feel better.

5. Outdated uniforms

When workers don't feel good about what they're wearing, it can have a substantial impact on employee morale and productivity. Gone are the days of stiff, ugly uniforms. Today, new fabric technology such as moisture-wicking controls have improved the breathability and wearability of employee uniforms, so workers can stay comfortable in any environment and look good throughout the day.

Advances in apparel technology have also enabled manufacturers to create garments with fast-drying, soil-release and moisture-wicking capabilities — perfect for occupational athletes, such as plumbers and maintenance personnel. In addition, large pockets with zippers and multiple compartments bring increased functionality to garments.

Organizations speak volumes about their brand and its operations by investing in their image. They'll also increase employee comfort and morale while presenting a consistent, professional image in even the most demanding environments.