Customer Service Cover Letter Example & Tips for 2025

In customer service you’re flooded with letters. Incoming complaint letters, outgoing complaint response letters. It’s enough to drive anyone mad. But what if I told you there was a different kind of letter. One that’s easy to write and can help you get the best customer service advisor jobs.

There is. You just need a well-written customer service cover letter. It has the power to transform your job application, like a raging complaint changed into a glowing compliment. A perfect customer service cover letter can make all the difference to your job application. And in just five minutes you’ll be able to write one.

This guide will show you a sample cover letter for a customer service advisor role, plus the best tips on how to write a formal customer service cover letter step-by-step.

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Customer Service Cover Letter Sample

So you’ve seen a genuinely impressive example of a cover letter for customer service advisor/assistant positions. Read on to learn how to do it yourself. But bear in mind—

A perfect cover letter means nothing without a perfect CV to accompany it. See our customer service CV writing guide here: Customer Service CV Example & Template

And we have cover letter guides for other careers too:

• Architecture Cover Letter Example & Guide
• Consulting Cover Letter Example & Guide
• Graphic Design Cover Letter Example & Guide
• Engineering Cover Letter Example & Guide
• Motivation Letter Example & Guide
• Career Change Cover Letter Example & Guide

How to write a customer service cover letter 

Here’s how to write a customer service cover letter for your job application:

1. Use the correct customer service cover letter format

As a customer service professional, you know well that the first impression counts the most. The same applies to your cover letter. A tidy, well-structured format shows that you’re organised, professional, and detail-oriented. Clear presentation also reflects the clarity and polish expected when communicating with customers.

• Set one-inch margins on all sides of the page.
• Use single or 1.15 line spacing for the best cover letter format.
• Choose an elegant font in 11pt to 12pt size. Good CV fonts are perfect for cover letters.

2. Create a professional customer service advisor cover letter header

Your header should reflect the same precision and clarity you’d use when handling customer queries. It’s also where you demonstrate initiative by addressing the letter to the right person. A smart, informative header sets the right tone for a role that values communication.

• Write your name and contact information first, top corner, right-aligned.
• Include your phone number, email, LinkedIn and optionally, relevant social media handles such as Twitter.
• Put the date below, also right-aligned and use the right format. E.g. 11th March 2025.
• Then left-align and include the addressee’s details. Preferably using the hiring manager’s name.

Can’t find the name of the hiring manager? Check the company’s website, do some research on LinkedIn. If all else fails, call reception and ask. Don’t be self-conscious, it’s worth it. Using a person’s name has a powerful effect.

Read more: How to Address a Cover Letter

3. Start with a personal greeting and a compelling first paragraph of your customer service cover letter

Start your letter by personally addressing the hiring manager. Use the opening paragraph to show enthusiasm, highlight a key achievement, and immediately demonstrate the positive attitude you’ll bring to the role. Make it warm, confident, and professional.

• Start with “Dear” and address the hiring manager by name.
• State which role you’re applying for.
• Highlight an impressive professional achievement to ‘hook’ the reader.

Read more: How to Start a Cover Letter

4. Show you’re the perfect candidate in the middle of your customer service cover letter

Your role demands patience, problem-solving, and strong people skills. And this is your chance to prove you’ve got them. Use real examples to show how you’ve handled challenges, exceeded targets, or improved customer satisfaction. Keep your focus on how you can support the team and enhance the customer experience.

• Refer to the job advert and demonstrate how your relevant experience and skills can help solve their problems.
• Mention some additional compelling achievements that you’re proud of.
• Quantify your achievements whenever possible: Use accomplishment statements. They’re a powerful way of showing how you’ll excel at the job.

And remember to keep it short and sweet. Read more here: How Long Should a Cover Letter Be? Ideal Length

5. Keep impressing the employer with the next paragraph of your customer service cover letter

Great service comes from people who care about what they do. Let the employer know why this role and company matter to you—whether it’s their values, reputation, or the chance to work with customers every day. When your enthusiasm is genuine, it’s hard to ignore.

• Show passion by complimenting the employer. 
• Demonstrate why you want this particular job above all the others.
• Do this and you’ll convince them you’re committed. 

6.  Thank your reader and add a call to action

Just like you’d end a call with courtesy, close your letter by thanking the reader and suggesting a follow-up. A friendly, proactive tone helps leave a lasting impression. It’s a small touch that mirrors the professionalism expected in a customer-facing role.

• Always suggest a call or a meeting to discuss the role further.
• Say thank you in your customer service assistant cover letter. It has a powerful effect that goes beyond good manners.
• Reinforce your value—demonstrate goals for growth and/or another professional achievement.

Read more: How to End a Cover Letter

7. Finish your customer service cover letter strongly with a professional sign-off

The last impression can be almost as important as the first one. Don't fail to deliver the best possible ending to your cover letter. 

• Sign off your customer service representative cover letter with your full name.
• Yours sincerely is used if you know the person’s name. Yours faithfully if you don’t.
• Include a digital copy of your handwritten signature below your sign-off.
• If you’re sending your a customer service advisor cover letter as the body of an email, put your contact details below your signature.

This guide is intended as a quick checklist. For more detailed writing advice read more here: How to Write a Cover Letter [Complete Guide]

As you can see, a great CS cover letter makes a huge difference, but to really have a chance of getting your dream job, you still need to write a perfect CV.

When making a CV in our builder, drag & drop bullet points, skills, and auto-fill the boring stuff. Spell check? Check. Start building your CV here.

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When you’re done, Zety’s CV builder will score your CV and tell you exactly how to make it better.

Thanks for reading! Now it’s your turn. What did you think of our customer service advisor cover letter example? What are your top tips for creating an outstanding cover letter template for customer service? Fire away in the comments section and I’ll be happy to help.

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Sources

• https://doi.org/10.1016/j.brainres.2006.07.121
• https://www.ubalt.edu/campus-life/career-center/career-services-online/career-cycle/documents/Writing%20Accomplishment%20Statements.pdf
• https://www.umkc.edu/facultyombuds/documents/grant_gino_jpsp_2010.pdf