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Factory Mulled Twin Casement

Featuring Andersen's Fibrex Windows

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Need Some Inspiration?

Bringing Your Vision to Life

We work with trusted vendors to offer custom solutions that make their window and door wishes come true. Take a look at more inspiration photos in our gallery.

Factory Mulled Casement/Transom

Dual Pane Low-E SmartSun Glass

Dining Room Bay Window

Interior Bay Window View

Factory Mulled Twin Casement

Front Elevation

Wall of Casements

Frame Exterior Close Up

Corrosion Resistant Folding Hardware

Black Casement Exterior

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FAQs

Questions About Our Products or Services?

You're not alone. There's lots to consider when taking on a window or door replacement project. Below are answers to some of our most frequently asked questions.

Can you convert a window into a door or a door into a window?

How do I prepare my home for window installation?

How do I schedule a consultation?

Are you local?

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Hear From Past Clients

"We had all of our windows replaced by Brennan Enterprises. The experience with this company was great throughout the whole process. We would definitely call them again and have already recommended them to others and will continue to do so."

Tom & Cathy

tom-and-cathy-testimonial-whats-next copy

"Great experience! I got a large bay window and two side windows replaced to new double pane windows. Scott was my contact, very helpful, not pushy, fair price... Very nice and professional. I definitely would recommend. Seems like a well run family business."

Fred

"Brennan Enterprises came highly recommended from a family friend who was wonderful from the first phone call to consultation. They gave my childhood home a face-lift right away and they’re so easy to open & close!"

Cindy

"Pleasant and friendly people. Quality product and quality work. They make sure everything is done correctly... I really appreciate the Brennan Crew!"

Lauren

"Brennan was the right choice for our custom window job. Communication from the office and the field staff was timely and accurate. Each trade that was part of the job was efficient and did excellent work. Job site kept clean throughout. Would not hesitate to use Brennan in the future."

M Shelton

"I'm so glad that I chose Brennan to replace my house's 25-year-old windows. I chose Andersen 100 Series Windows because they come with 2 warranties. Brennan's prices were half of Renewal by Andersen's! Brennan's employees are the best. Kudos to Dustin (my Sales Rep), Jake (my installer), and Sheryl (payments)."

Howard

"We love love love our new picture windows! Kerry Brennan himself came out and went over everything with me!! It took a few weeks to get them but the installation was quick and easy. Will definitely use them again!"

Mellany

Your Vision, Our Expertise

Window & Door Solutions Tailored to Your Home

Upgrading your windows should be effortless. From design to installation, we ensure the process is smooth and stress-free.

Free Consultation View Our Services

Factory Mulled Twin Casement

Bringing Your Vision to Life

Questions About Our Products or Services?

Can you convert a window into a door or a door into a window?

How do I prepare my home for window installation?

How do I schedule a consultation?

Are you local?

Hear From Past Clients

"We had all of our windows replaced by Brennan Enterprises. The experience with this company was great throughout the whole process. We would definitely call them again and have already recommended them to others and will continue to do so."

"Great experience! I got a large bay window and two side windows replaced to new double pane windows. Scott was my contact, very helpful, not pushy, fair price... Very nice and professional. I definitely would recommend. Seems like a well run family business."

"Brennan Enterprises came highly recommended from a family friend who was wonderful from the first phone call to consultation. They gave my childhood home a face-lift right away and they’re so easy to open & close!"

"Pleasant and friendly people. Quality product and quality work. They make sure everything is done correctly... I really appreciate the Brennan Crew!"

"Brennan was the right choice for our custom window job. Communication from the office and the field staff was timely and accurate. Each trade that was part of the job was efficient and did excellent work. Job site kept clean throughout. Would not hesitate to use Brennan in the future."

"We love love love our new picture windows! Kerry Brennan himself came out and went over everything with me!! It took a few weeks to get them but the installation was quick and easy. Will definitely use them again!"

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Window & Door Solutions Tailored to Your Home