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(630) 929-6190

Family-owned since 1952

Service areas

Window replacement in Naperville, Illinois

Looking for new windows for your Naperville home? L.J. Neal & Sons helps you compare replacement window styles, glass packages, and installation options with a clear explanation of the work.

Plan your Naperville window project

Replacing a group of windows together lets you keep frame colors, grille patterns, and sightlines consistent throughout your home. We can compare double-hung and casement options room by room before you choose.

Window styles for your rooms

Address the problems you notice every day

Tell us about cold drafts, fog between panes, sticking sashes, worn locks, or uncomfortable rooms. The condition of your existing windows helps us explain what replacement can address and what else may need attention.

What Naperville homeowners say

You gave us straight and useful information which helped us make our selections. It was also clear from their website that they have a long history of honest service to the community. Our windows were installed promptly and professionally. We selected 'casement' windows; the ease of opening and closing these windows makes a great deal of difference to an older couple. We would be happy to use this company again and highly recommend them to all.

Edward and Joan SchulerNaperville, IL

Dear Leo, We still can't believe the difference new windows could make! This is the first winter we're actually not huddled on our sofa with a comforter and thermal socks! I think the best part of this whole process was knowing we didn't have to worry about anything. You gave us a ton of information right from the beginning and didn't try to impose any gimmicks on us because we were first-timers. We appreciate that. You and your company were always professional and friendly and your performance was astounding! We thought for sure you'd be there another day with all the extra 'stuff' you did but you finished a half day early! When our neighbor had his work done, they were not as detailed with their quality as you are and as you've seen, it shows. I know he's kicking himself now! We can't wait until you start our outdoor kitchen in the spring! Yay! Thank you so much!

Beverly & Sid MeyerNaperville, IL

The job satisfaction was excellent. They did a very good job on arriving on time, very methodical work, excellent finish, neat and clean work. It seemed they took great pride in their work. I have already recommended them to my neighbor across the street. Thanks to the owner for an excellent job and will strongly consider them for my next job.

Harish N.Naperville, IL

Installation details that matter

Your written proposal should explain the work around the opening as well as the window itself. We review existing frames, interior trim and jambs, exterior capping, cleanup, and any additional work before you order. Ask us to explain which finishing items are included and which are optional.

Family-owned service since 1952

Meet owners Bridgette and Leo Neal to discuss your home, compare window options, and understand your project. Ask about our 4x Lifetime “One Call” Warranty, its transfer provisions, and the written coverage for the products you select.

How do I start a window replacement project?

Send your address, approximate window count, the problems you want to solve, and your target budget through our quote request form. We will discuss your project and the next steps for an in-home visit.

Is triple-pane glass always the right choice?

It depends on the specific window, its energy ratings, your comfort goals, and your budget. Compare the complete products and installation scope. Read our guide to energy-efficient windows in Illinois for the questions to ask.

What affects the price?

Window size, operating style, glass, finishes, and installation scope all affect your quote. Our article on keeping your window replacement on budget explains what to compare.

Planning new windows for your Naperville home?

Send your address, approximate window count, the problems you want to solve, and your target budget. We will discuss your project and the next steps for an in-home visit.

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