William  Piotrowski (Diamond Residential Mortgage Corporation )
031.0016549 NMLS#219299

130 West Jefferson Ave. Suite 208

Naperville , IL 60540

I am always happy to help you or someone you know Buy, Sell or Lease your next home. Remember, Experience Isn't Expensive - It's Priceless! Contact me today.

Get to know William Piotrowski

 William Piotrowski is a Branch Manager and loan officer for Diamond Residential Mortgage.

Everything William does is about empowering others to find the right home for their family, future, and finances. He does this by working with everyone from first-time home buyers to more complex clients who don’t fit conventional lending profiles.

What makes William different is his accessibility to your family and how he listens to what you need at all points in the home buying process. You deserve a mortgage lender that empowers and works with your family.

For the last 14 years William has been recognized as a top lender in his region. Give him a call today at 630-881-8655 or send him an email at william@thedrmc.com

See what others are saying about William https://socialsurvey.me/pages/william-piotrowski

 “Wealth is what you accumulate, not what you spend”


  • Causes William cares about:
  • Arts & Culture
  • Animal Welfare 
  • Children
  • Civil Rights & Social Action
  • Economic Empowerment
  • Education
  • Environment
  • Health
  • Human Rights
  • Disaster & Humanitarian Relief
  • Politics
  • Poverty Alleviation
  • Science & Technology
  • Social Services

William Piotrowski's Blog Posts


What sets me apart is that I will provide concerned potential buyers and agents, who want to work with an honest mortgage advisor that will listen and create the perfect solution to their mortgage needs so that they can obtain the best program, the highest value and award winning service.



Specialties: Residential SalesLuxury Homes, and First-Time Home Buyers



I work with you Hand & Hand through your whole process and educate you as we proceed on your getting to the closing table.

My main concern is You. I love closing loans and making You 100% happy as we work together. 

Our mission, at Diamond Residential Mortgage Corporation, is to secure the best mortgage available for our clients. We will work diligently to find you the best possible terms, helping you achieve your financial goals in a friendly and professional manner. Our clients truly do come first and will be treated with the utmost respect and forthrightness. You will notice the difference from the initial consultation.

Diamond Residential Mortgage Corporation is committed to helping you find the right mortgage product for your needs. We understand that every borrower is different, and we offer a variety of products to meet your individual needs. We make the process of securing a mortgage simple and straightforward by offering you the latest financial tools that enable you to make sound financial choices.

My philosophy is this;

What sets me apart is that I will provide concerned potential buyers and agents, who want to work with an honest mortgage advisor that will listen and create the perfect solution to their mortgage needs so that they can obtain the best program, the highest value and award winning service.

Call me today (630)-881-8655 and ask how I can help you.

With Respect; 

William Piotrowski 
Originator License # 031.0016549 
N.M.L.S #219299

Testimonials for William Piotrowski

  • Dave and Catherine Hamilton

    Fast response, great rates, excellent on time and efficient. William was a pleasure to work with. He answered all of our questions and made the closing easy to understand and performed it in a timely matter. Your business is better than going to a bank. Thank you for your help. Kate and Dave Hamilton

  • Michael Charicki

    William and his team are awesome to work with! They are able to get things done that other lenders can't. If you have been turned away before, contact William. If he is not able to get it done, he will put together a plan and tell you exactly what you need to do. I highly recommend him, service is exceptional. Thank you!

  • Patrick And Kayla Donegan

    William was available to us just about 24/7 and a quick text away which was helpful. To be completely honest, there were times that the texting got very overwhelming and frustrating, but now that we have closed on our home, I know he was doing what he could to keep us on schedule to fulfill our end of the bargain for purchasing the home from the seller; which was a quick close. William got us to closing in 15 BUSINESS DAYS which shocked us, our family, and our friends! Thank you for everything!!

  • Robert And Erika Alarid

    William was so easy to work with. He was always available to promptly answer our questions and concerns. I highly recommend William and Diamond Residential Mortgage.

  • Jason Silver

    William has helped me on my last 3 loans. He is amazing! Makes the loan process very easy and quick. Thanks Bill.

  • Greg Gordon

    It was great working with William, you can tell he loves what he does. He the made the home buying process smooth as can be. Wiould recommend to family and friends!

  • Kendra Williams

    He made us feel comfortable with all these big steps. He also was very trusting and helpful when confused about something.

  • Daniel Castrejon

    William and Sherry are a phenomenal team! Very attentive and provide you with the best customer service!

  • Trevor Fischer

    William made the process of getting our first home loan incredibly stress-free and easy. He thoroughly and patiently answered all of our questions and guided us through the steps we needed to make our dreams of buying a home come true. He worked with our busy schedules and always responded to our emails promptly and professionally. We would highly recommend William and his team to friends and family looking for a lender.

  • Bob Nelson

    Thank you for you expedient service with Stocco's.
    They are very pleased with service you provided.
    I'll bring your name up at our office meeting relating the 2 experiences I've had with you.
    It's always a pleasure working with a true professional.
    Once again thanks.

    Bob Nelson BPOR SFR ePRO

    Service Areas (7)
    • Naperville, IL
    • Burr Ridge, IL
    • Barrington, IL
    • Chicago, IL
    • Glencoe, IL
    • Bolingbrook, IL
    • Northbrook, IL
    • Hinsdale, IL
    Specialties (9)
    • Buyers
    • Condos/Townhomes
    • Investment Properties
    • Luxury Homes
    • New Construction
    • Residential
    • Sellers
    • Seniors
    • Short Sales
    Languages (1)
    • English