Window Replacement Cost Calculator

How many windows are you replacing?

What’s the most common type of window in your home? 

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Just pick the most common type for now. A windows professional can help you refine your quote based on the exact window types and dimensions.

Insulated Windows or Non-Insulated?

Where’s your home located?

Costs to install and replace windows varies greatly by region and even by zip code. Your zip code is required for a more accurate estimate.

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This estimate is an average based on similar window work performed in normal, serviceable conditions. This is not an official quote, this estimate should only be used for preliminary planning. If you would like an approved quote, give us a call at 888-293-2966 or click the “Connect With A Local Pro” button after calculating your estimate.

 How to Use Our Window Replacement Cost Calculator

Determining the cost of your window replacement is probably high on your list of priorities—and there’s a lot going into that estimate. The price of installation depends on these factors:

  • Number of windows you’re replacing
  • Window style and materials
  • Type of insulation
  • Labor costs
  • The standard price for work in your area.

If calculating so many variables has your head spinning, don’t worry. We created the ModWindows Window Replacement Cost Calculator for this very reason—so that all the work is done for you.

Simply answer a few questions about your home—including the number of windows you’d like to replace, your style preference, whether or not you need insulation—and ModWindows will give you an individualized estimate for a replacement project in your location. It can even predict the average labor costs so that you’ll understand the breakdown of your renovation cost—just check the box that says Include labor cost in my estimate.

Your final estimate isn’t just a flat rate, either. ModWindows gives you a picture of your average costs, as well as the high and low range for the project, in case you’re looking for a luxury replacement or hoping to save money. Home renovations already come with enough surprises. ModWindows helps you take some of the guesswork out of the process.

Breaking Out Costs

The Cost of the Window

The most expensive part of your project will go toward the cost of the actual windows. Windows aren’t cheap, and most of your budget should be reserved for quality windows. Installing a window properly doesn’t take very long, so labor should be the lower cost in your estimate.

Calculate Average Window Replacement Costs

If your home has standard rough opening sizes, you can simply add the cost of standard-sized windows from the local supplier you choose. Most local suppliers will have many different window types to choose from, and you can price the windows before you order them. Simply measure the rough openings around your home and talk with your supplier to see how much it’ll cost to have your desired windows installed.

Although it depends on the style, material, and options for energy efficiency that you choose for your home’s windows, you can expect to pay anywhere between $170 and $360 per single hung window replacement. This is compared with the national average for a standard-sized double hung window, which ranges between $300 and $850. For a casement window, expect a cost ranging between $270 and $750.

If you’re replacing all of your home’s windows, you’ll need a more precise estimate so you can budget accordingly. The cost of window replacement for 10 vinyl windows is an average of $15,955, compared to $19,391 to replace 10 wood windows.

And what about the cost of non-standard options, such as bay windows? There are two types of bay replacement windows. First is the box bay window, which is smaller in size and therefore less expensive. On average, you can expect to pay between $500 and $900 per box bay window ranging in size from 3×3 feet to 4×4 feet. For a full bay window, the increase in size means a higher cost, with an average price tag between $800 and $1200 for a 3×6-foot bay window replacement. Find the costs of more window types here.

Calculate Custom Window Costs

When it comes to custom windows, determining a cost is a bit more involved. You’ll need to define all the features that you want, including size, frame type, energy efficient window glass type, and the type of gas you’d like inserted between the layers of glass. After deciding on all of these factors, you can determine the cost of your custom windows.

Most Popular Replacement Window Types & Costs

Wood windows have long been a traditional favorite for replacement windows. They’re an attractive option to many homeowners, thanks to their aesthetic beauty and insulative properties. They’re an especially smart choice since they last for decades—often up to thirty years or more. However, their superior lifespan comes with necessary maintenance in order to prevent rotting and corrosion.

As a more low-maintenance alternative, vinyl windows are another popular choice, with more than half of homeowners choosing them for their replacement windows. It’s easy to see why, since they’re durable, resilient against inclement weather, rot-resistant, and energy efficient.

Vinyl windows offer the traditional beauty of a classic wood frame without the necessary maintenance or the high price tag—they have a lower overall job cost and a higher ROI than wood windows.

Much like vinyl windows, aluminum frames are a popular choice of replacement window because of their low maintenance, durability, and affordability (with an average cost of $550-$750 per double hung aluminum window). The drawback, however, is that because of their high thermal conductivity, these frames retain heat and cold more easily and are therefore also more prone to condensation.   

A contractor measures a window

Consider Labor Costs Separately

You’ll want to hire a professional to complete the job. This way, you can be confident that your windows will be in peak performance and will last for years to come.

To get an idea of the actual labor cost, have a couple of contractors come look at your windows and offer a quote. You’ll generally pay a bit more for labor when a contractor installs windows you’ve already purchased, because most contractors make money off purchasing windows for a homeowner. Still, you can expect the average window replacement labor cost to start at $38 per hour.

Contractors have many relationships established with window providers around the area. Many contractors can get a discount on windows, but they will bill you for the full value of the window. The percentage they save on the window serves as another form of payment for the job, reducing the overall installation costs.

Other Costs & Savings to Consider

New Construction Windows Versus Simple Replacement

Look at your current window frames—are they rotting? Rotten frames must be replaced, so you’ll need new construction windows rather than replacement windows. New construction windows are a bit more expensive and have higher installation costs, too. Factor in spending about $50 to $100 more per window for new construction windows—but also make sure to get estimates from several different contractors.

Add in Any Fees

Many contractors or large companies will add fees such as delivery charges, so you’ll need to account for these as well. It’s important to ask about any additional fees that you’ll be charged and make sure that you account for them in your budget.

Window Disposal

When you work with a certified contractor, they will take care of disposing of all the excess materials that accumulate throughout the project. If you are installing the windows yourself, you will have to figure out how much it is going to cost you to dispose of the old windows and excess. If your old windows are in good shape, you can sell them or donate them to Habit for Humanity or another charity.

If they’re in poor shape, you will likely have to pay to dispose of them. Figure out what disposal costs are in your area and budget between $50 and $400 to get rid of all the materials that are left over at the end of the project.

Three awning windows

Talk with Your Utility Company About Possible Tax Credits and Rebates

You might be surprised by all of the available local rebates and credits that will help you get money back on your window replacement. To find out if there are rebates in your area, get in touch with your local utility company. Many are offering rebates to customers who have Energy Star windows professionally installed in their homes. You might find out that you qualify for $200 per window or more in rebates. Many times these companies will provide a per window rebate up to a specific amount.

In addition to local utility rebates, there are also plenty of government incentives for homeowners who make energy-efficient home improvements. According to, Energy Star windows reduce utility monthly utility bills by a national average of 12%. You can check out the DSIRE (Database of State Incentives for Renewables and Efficiency) to search for energy-efficient incentives in your state.

Factor in Insurance

When you buy windows from a big box store like Lowes or Home Depot, you’ll undoubtedly be offered an insurance plan on top of the warranty that comes with the windows. Many times this insurance plan will help fix damaged windows that aren’t covered under the standard manufacturer’s warranty. If you want the added protection so that you don’t have to worry about saving for future window problems, factor in the cost of that insurance into the overall price as well.

Get Financing

If you’re planning to have many windows replaced at once, you’ll probably need to finance your replacement project. Even at the low end of a replacement window cost, you should expect to pay between $450 and $500 per window. If that kind of spending isn’t realistic for you all at once, look into the many available financing options:

  • Home Improvement and Home Equity Loans– Many home improvement loans are available for purchases like new windows, flooring, roofing, or other projects that will improve the value of your home. Talk to your local bank or credit union to find out if you qualify. If you’ve been paying off your home for a long time and you have some serious equity in it—usually between 40 and 60 percent at a minimum—you might be able to take out a second loan relying on the equity that you already have.
  • Mortgage Increase– In some instances you can get a higher mortgage amount than what you need to buy the home itself, and that amount can be used to make improvements to the home. If you have a significant down payment, as well as some contractor bids and before-and-after appraisals for your project, you might get the bump up that you need to cover at least part of the home improvement from your mortgage.

Once you’ve added the cost of the windows, labor and disposal fee, simply subtract any tax breaks or rebates. Then you’ll be able to determine exactly what it will cost for your home’s new windows, and you’ll be a better informed homeowner, too.


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