When I moved from New York to Grosse Pointe, I purchased an older home in need of new windows. I knew that I wanted Pella windows so I called the corporate offices in Iowa and simply asked them, “Who is the best Pella Window Installation Specialist in Michigan?” Without missing a beat, the customer representative replied, “Bob Warunek.” The Customer Rep told me that Bob attends every new training and updating session faithfully every six months. I asked for his # and fortunately he is based in the Metro Detroit area and his son Rob, the Pella Sales Rep came and met me at my home. There was no sales pressure whatsoever!  Rob listened intently to what I wanted and offered suggestions when I asked and then he went back to his office and wrote up the cost estimate.

The work I needed done was complex and required removing an entire door way and tearing down walls. I could not be more pleased with the work that Bob and his associates have done at my home. More importantly, Bob is extremely gracious when I call and ask him a question or if I need him to come back and make an adjustment. I have additional work that needs to be done and I would not consider working with anyone other that Bob, Rob and Donna Warunek. This is indeed a “family business” and each one of them are people of integrity and nothing is more important to me.

Douglas B., Grosse Pointe, MI

I had Pella replacement windows installed in my home by Air-Tite. I was very pleased with the professional approach with the sales and installation staff at Air-Tite. As a single woman, I did not feel pressured or uncomfortable with the information that was provided by the salesman. All my questions were answered with great detail and in a comprehensive manner. The installation staff completely cleaned up the areas as though they were never there once the windows were installed. All that was left behind were the beautiful windows that were installed in my home. The custom workmanship on the final molding around the windows was flawless. If I ever move and need new windows again, I will not hesitate to contact Air-Tite.

Holly R., Washington Twp.

We had our entire home’s windows replaced with Pella windows, including the doorwall and bay windows, in a three-stage process. We were exceptionally pleased with the knowledge, service, and installation provided by Air-Tite Replacement Co. Inc. Bob, Rob & Donna’s friendliness and endless patience with our many questions helped make this a pleasurable experience. Thanks again.

Ben and Carolyn B., Macomb Township

Dear Bob & Donna,

Thank you for installing the Pella doorwall. It is beautiful! ☺ It was so kind of you to help us out and much appreciated.

Thanks again!

Tim and Theresa T., Clinton Township

Dear Mr. Van Zanten (of Pella Corporation):

I’m sure that members of your staff carefully crafted the enclosed survey, but sometimes though carefully written there is something else that needs to be added, that’s what happens when you have someone else representing your fine company, its products and services.

I became aware of your company when my neighbor suggested that my wife and I contact Air-Tite Replacement, a company which he had successfully used in having Pella windows installed in his home.  I am glad that my wife and I took his recommendation.  We had looked at having our windows repaired rather than replaced, eventually we would face additional repair costs down the road regarding the windows.

It was in meeting Robert Warunek, owner of Air-Tite Replacement, that we learned about the advantages of using Pella over other window companies which are frequently advertised on television.  What we also learned and witnessed is that Mr. Warunek would be there at our home installing the windows insuring that they were correctly installed.

Yes, my wife and I are very pleased with our Pella windows and intend on using them for replacing other windows it our home later on, but felt that the positive and rewarding experience of dealing with Mr. Warunek warranted being brought to your attention.


Donald W.
Rochester Hills, MI
(Letter sent to Mr. Van Zanten at Pella Corporation along with Pella Customer Survey)

Donald W., Rochester Hills, MI

Dear Bob,

I found your hat behind the living room curtain. A man needs his hat.

All of our windows are done now. I want to thank you for a job well done. I enjoyed watching your team working on our home. I hope you know I was watching your work with respect, not because I felt I had to keep tabs. We have not had to worry one second about the installation of our replacement windows, and I appreciate the small favors you did for us along the way. An early favor you might remember was when you reinstalled the burglar alarm sensor in our kitchen doorwall, which save me from having to call out the alarm company. During your last visit, you happily installed the Hardiborad under the arched window. The appearance is perfect, and this will save me a maintenance headache in the future.

My sense is you approach every window/door unit as though it is your own. In today’s world, that is a quality of a contractor that is very hard to find. It has been a sincere pleasure dealing with you. Thank you.

Sincerely yours,

Rick W., Rochester Hills

In spring, I walked into Air-Tite to look at Pella sliding doors. Not only have I replaced two sliding doors and four other windows since then (with two more to be done this spring), but I discovered this was the same company who had replaced the windows in my previous home back in the 80’s. I knew immediately that I didn’t have to “shop around”. Air-Tite does superior work…very thorough, with quality workmanship.

Pat K., Macomb Township


We love our new windows. The finish woodwork is excellent and our house is a lot warmer. It is also nice not having any window treatments in front of the window due to the blinds in-between the panes.

Best regards,
The P. Family, Macomb Township

The P. Family, Macomb Township

We have had all our windows and one entry door replaced by Air-Tite. Their wide variety of replacement products fit both our price and style needs. Their expert installation and craftsmanship was outstanding. I have recommended Air-Tite to both family and friends.

John M., Macomb Township