Large bay windows behind couch with marsh in background. See pricing and read reviews on Renoviso.

Bay windows installed right

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Bay Windows Guide

Bay windows have a large center window flanked by two smaller windows - usually double hung or casement window - at an angle. These windows are the centerpieces of many great rooms and views, and project out from the wall providing an opportunity for additional light and a more spacious feel. Appreciated by all, bay style windows can add charm to a traditionally designed home or create great views and sight lines in a contemporary setting. Read below for more information on the features, pros and cons, price, and other details of bay windows.

About Bay Windows

This window style is a highly sought after home feature that is simultaneously sophisticated and simple in design. They are composed of three windows that make up a half hexagon and extend outward from the face of the home. Bays are different from bow windows, which are composed of four or five windows and form a flatter and more curved shape. These windows offer great views and seamlessly make the outdoors the focal point of any room.

Operation Instructions

Bay windows have a large stationary picture window in the center that does not open and a double hung window on either side. Double hungs are traditional windows that open by sliding up and down vertically.

Around Your House

These windows can bring fresh air, lots of sunlight, and beautiful views to any part of the home. They can create a window seat in living rooms or bedrooms, or they can add curb appeal when installed in the front rooms of a house.


These windows are manufactured in all of the common window materials, including vinyl, wood, as well as composite fiberglass. Vinyl windows are on the less expensive side of the price spectrum, whereas wood and composite frames will be more expensive. The material you choose for your window will depend on your budget and style preferences. Brands differ substantially in the colors, grids, and other features they offer, so the material you choose will depend on the design options you want for your window.

Pros and Cons


  • Bring in sunlight from several directions because each of the three individual windows faces a different angle.
  • Extend out substantially more than any other type of window and add square footage to your home.
  • An attractive feature and have great curb appeal.
  • Can increase your return on investment.


  • The added sunlight can be good as long as you have high energy rated glass, otherwise you could see an uptick in your energy bills.
  • Tend to be more expensive, but are also a strong investment.
  • Require a more labor intensive installation.


Pricing can vary by brand and depends on frame material and customizations, but a general price range is between $5,000 and $7,000 dollars.

Here are the base prices of brands offered for installation by Renoviso:

  • Harvey Classic Bay - $4,999
  • Integrity Wood-Ultrex Bay - $4,659
  • Harvey Majesty Bay - $5,699
  • Marvin Clad Bay - $6,119
  • Andersen 400 Series Bay - $6,199

Shopping on Renoviso

Start by browsing products below by brand and price point. Once you select a replacement window, you are able to customize all aspects including size, color, grids, hardware, and more. Submit your project online or call us at 888.867.1660 to speak with a Project Consultant.

Customer Reviews

"We needed to replace a large bay window in our living room. Before we found Renoviso, we we contracted with a big box store, and that turned out to be a fiasco (first they were months late and then FINALLY when they were ready to install the window was measured wrong). Needless to say we fired them. On a second try from another vendor, the sales people never showed up. We then discovered Renoviso at the 2016 Boston Home Show and had a great conversation with the sales person. We decided to go with Renoviso - their quote was fair, and ratings were good. We made a good decision. Everyone we dealt with at Renoviso was professional and helpful. Thank you for a great experience. We finally have our beautiful window." - Frank M.

"Very happy with the whole process. Bob Cravin and his crew were great. They were prompt, efficient and clean. Very professional and they did an amazing job." - Debra M.

"I am EXTREMELY happy with every aspect of my experience with Renoviso! I have already recommended you to a neighbor. Calls returned quickly, very professional staff, willing to go above and beyond....I am very, very pleased! Kerry Crowley was wonderful!. Contractors did a fantastic job! Window is exactly what I wanted." - Karen P.

"So far very pleased! Bob and crew did a great job despite the 95 degree temps. They were very clean ,managed to avoid most of my garden and went as far as to replace my vinyl siding where there were previously 2 ugly knee braces, to my delight!" - Colleen M.

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