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People Who Care. Expertise You Can Trust.

Meet the NEXT Door & Window Team

At NEXT Door & Window, our team is the heart of everything we do. From your first conversation with a Design & Energy Expert to the final touches from our installation and service professionals, you’ll meet people who genuinely care about your home, your comfort, and your experience.
We believe great results start with great people, and we’re proud to have one of the most dedicated, knowledgeable, and customer-focused teams in the industry.

A Team Built on Experience, Integrity, and Heart

 

Our team brings together decades of expertise in window and door replacement, along with a shared passion for helping homeowners improve the place that matters most—their home.

 

What makes the NEXT team different?

  • We listen first. Understanding your needs helps us guide you to the right products and the best solutions for your home.
  • We educate, not pressure. Our team is here to inform and empower you… not overwhelm you.
  • We treat your home with respect. From design to installation, our professionals work with care, precision, and pride.
  • We’re accountable. Every team member stands behind our work and honors our promises.

The result? A team that feels less like contractors and more like trusted partners.

See Our Awards

Our Design & Energy Experts Make the Process Easy

Our sales team isn’t here to “sell”—they’re here to guide.

 

Your Design & Energy Expert will:

  • Walk you through product options in a way that’s easy to understand
  • Provide honest recommendations based on your home and goals
  • Help you compare materials, styles, and performance benefits
  • Ensure you feel confident and informed every step of the way

 

You’ll never experience high-pressure tactics—just thoughtful guidance from people who want the best for you and your home.

Certified Installers Who Take Pride in Their Work

Our installation team is highly trained, certified, and committed to delivering the strongest, most energy-efficient results possible. Professional craftsmanship is a point of pride at NEXT—and it shows in every project we complete. They treat every home like it’s their own, ensuring:

Clean, respectful workspaces

Precise, quality installation

Protection of your home before, during, and after the project

A walkthrough to make sure everything is perfect

Learn More About Our Financing Options

Service Professionals Who Are Always Ready to Help

Great service doesn’t end on installation day. Our service team is here whenever you need support—whether it’s a question, an adjustment, or guidance on proper care and maintenance. With a dedicated service fleet and fast response times, we stand by our promise: “Ready when you need us.”

A Company That Puts People First

From installers to project managers to office support, every person at NEXT Door & Window plays a vital role in delivering the exceptional experience our customers count on.

We’re honored that:

  • 50% of our business comes from repeat and referral customers
  • 95% of customers say they would recommend NEXT
  • Our customer-first culture earned us the BBB Torch Award for Ethics (2023)
  • Our workplace culture was recognized by Crain’s Chicago Business as a Best Place to Work (2024)

 

These achievements reflect our team’s dedication, passion, and commitment to doing things the right way.

Here for You — Every Step of the Way

When you choose NEXT Door & Window, you’re choosing a team that believes your experience should be just as exceptional as your finished windows and doors. We show up with professionalism, kindness, and a genuine desire to make your home better.

This is the team behind the NEXT Difference—and we’re here whenever you’re ready.

Jessie R.
Gave us great suggestions on window replacements. We love the picture windows and other suggestions he made. He is very knowledgeable and came to our house during the installation to make sure all was going well and we were happy with the windows and installation.
Marianne P.
The installers were very skilled and knowledgeable. In my Family Room, the installer even took it upon himself to level the wood shelf under the window he was installing so the wood framing the window would be even and “look nice“ as he said. He didn’t have to put in that extra effort, but he did…he took great pride in his work.
Larry H.
Next Door & Window worked within my schedule and timelines. They are very professional. And Scott the salesperson inspected the installers work to make sure they were doing what they were supposed to. I have nothing bad to say about them.
Brett W.
Very professional, I enjoyed visiting the showroom and being showed around the shop to see how they prepare the windows for installation, and of course meeting those who run the show!

Meet the Team

Justin Bartley

Justin Bartley

Owner & Founder

With more than 40 years of experience in home improvement, Justin Bartley has built his career on a simple but powerful belief: every homeowner deserves exceptional craftsmanship and a team they can trust. As the owner and founder of NEXT Door and Window, Justin brings decades of hands-on expertise and an unwavering passion for helping customers protect, beautify, and invest in their homes. His journey began on the south side of Chicago, where he got his start installing and servicing garage doors — learning the trade from the ground up and developing the hands-on work ethic that still defines NEXT Door and Window today.

Justin’s commitment to building a company the right way has earned NEXT Door and Window some of the most respected recognitions in the industry. The company has been named a Crain’s Chicago Business Best Workplace multiple times — a testament to the culture of excellence, respect, and opportunity that Justin has worked hard to cultivate from the ground up. That same dedication to integrity earned NEXT Door and Window the prestigious BBB Torch Award for Ethics, one of only six to ten businesses recognized each year from a field of over a hundred vetted nominees.

Holding a Bachelor of Science from Northern Illinois University and an MBA from St. Xavier University, Justin pairs real-world trade experience with strong business acumen. He is a passionate advocate for the skilled trades in America and dedicates significant time to training and coaching the next generation of home services professionals, believing that investing in people is the foundation of any great company.

That same spirit of investment extends to the communities NEXT Door and Window serves. Justin is a proud supporter of Habitat for Humanity, donating windows and doors each year to help families build stronger, more independent lives. He also champions the Sheilah A. Doyle Foundation, a local nonprofit providing camp experiences and grief resources to children ages 7–17 who have lost a parent or sibling to homicide — a cause close to his heart.

When you work with NEXT Door and Window, you’re not just working with a contractor — you’re working with someone who genuinely cares about your home, your family, and the community you share.

Matt Slowiak

Matt Slowiak

Procurement/IT Manager

I’ve been in the Window & Door industry for over 25+ years.  I’ve labored on job sites, loaded/unloaded trucks, sales, purchasing, just to name a few things.  I just recently had my 10 year anniversary with Next Door & Window as the Procurement & IT Manager.  I truly enjoy innovating new systems and procedures at our office.  Always trying to improve upon things we currently do, I am never satisfied.

When I’m not at the office you generally can find me at a table somewhere playing/teaching a strategic board or card game. Often I’m trying to convince my co-workers that we have enough time to play one during our lunch break

I love spending time with wife and daughter.  It’s no secret we enjoy visiting Walt Disney World in Florida & my family in Denver

Jason Alice

Jason Alice

General Manager & Integrator

My current role at Next Door & Window is General Manager & Integrator. I have been with Next Door & Window since 2015 and in the construction industry for most of my professional career. I oversee day to day operations at NEXT Door and Window across all departments. Away from work I am a loving husband and father of 3 boys. When I am not spending time with my family or working, I am an avid golfer and can usually be found on the course.

Amer Khan

Amer Khan

Sales Manager

Carl Isaacson

Operations Manager

I began my career with the Next family over 20 years ago as an installer. Over the years, I’ve had the opportunity to work in and support every department within the company, gaining a deep understanding of our operations from the ground up. Today, I serve as Operations Manager, overseeing multiple production teams including Re-measure, Pre-Finish, Installation, Warehouse Operations, and our Service Department. My hands-on experience across the organization allows me to lead with both practical knowledge and a strong commitment to quality. At Next, our reputation is built on trust, workmanship and service. My commitment is to lead our teams in exceeding customer expectations and ensuring every homeowner feels confident and happy with their window and door investment. Outside of work, I enjoy spending time with my kids, family and friends. In the winter you can usually find me at an ice rink, and in the summer, on the golf course – making the most out of every season.

Nick Mohamed

Marketing Director

Nick began his marketing career with Fortune 50 media companies, helping local businesses reach new customers at scale. As digital channels evolved, he led clients and teams through digital transformation, driving efficient top- and bottom-line growth. Having lived in Indiana, Michigan, and Texas, Nick has worked with business owners across industries and sizes and is passionate about creating measurable impact through marketing.

Today, he brings that passion to the customer-centric home services space, where he’s aligned with NEXT’s mission to deliver a home improvement experience customers truly love. When he’s not thinking about marketing, Nick can be found cheering on his 6-year-old son and 8-year-old daughter at their school events, sports, and outdoor adventures.