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What to Know About Installing Replacement Windows

A window is only as good as its installation. Prioritize proper installation by learning about the installation options, types and process.

Headshot of Author Taeya DeVries

ByTaeya De Vries

Published 2020-03-24

two installers replacing two double-hung windows with new Pella windows

Table of Contents

A great replacement window goes a long way. It can help save you money on your energy bill and revive the look of your home — both inside and out. But all too often, homeowners overlook the importance of proper installation when purchasing replacement windows. To get the best long-term performance from your windows, it’s crucial that they be installed correctly.

In this article, we’ll discuss four options for installers, two installation types and the overall installation day process.

a new window, still wrapped in protective packaging, is being delivered to a home

Options for Window Installers

Finding the right replacement window installer to tackle your project is just as important as finding the right window itself. Below we’ll discuss four main options for replacement window installers:

  • Pella showroom
  • Independent contractor
  • Home improvement store
  • Do it yourself

Work with a Pella Showroom

Letting the Pella® window replacement experts do the work for you is always a great option. The team of experienced installation professionals have been certified and trained to install Pella windows. They strive to deliver a no-mess, no-guess window replacement installation experience, always maintaining the utmost respect for your home and your project’s objectives. By choosing a replacement window installer directly from Pella, you’ll benefit from the Pella Care Guarantee which covers issues related to installation (including labor) for up to 10 years. This extra protection is available only through a Pella showroom. Later in this article, we’ll discuss more about what to expect on installation day should you choose to work with a Pella showroom.

Hire an Independent Contractor

If you’re looking for a remodeling or renovation pro you can rely on to do more than just install replacement windows, use our Pella Certified Contractor search tool to find trusted contractors in your area. This option will also give you the ability to request up to three different quotes. These local contractors have been trained and certified by Pella to quote and install windows and doors, along with completing a variety of other home projects.

Visit Your Local Home Improvement Store

If you live near a Lowe’s home improvement store, stop in and talk with project specialists who are ready, knowledgeable and equipped to help you specifically with Pella windows. You’ll be able to schedule a free consultation with a Lowe’s team member and get a project quote that includes installation.

Depending on where you live, you might not have a Lowe’s store near you, but maybe you have a close relationship with your local home improvement store. Perhaps you’ve known the franchise owner for a long time or enjoyed working with them on past home improvement projects. Chances are, the home improvement store nearest you partners with subcontractors to help provide customers with replacement window installation services.

When considering this option, take the time to vet the contractor or subcontractor affiliated with your home improvement store of choice. Ask them how long they’ve been operating and how much business they receive from referrals. Referrals are a strong indicator that the contractor’s work is satisfactory. Also, consider asking the home improvement store if they provide any warranty options for coverage after installation day.

DIY Window Installation

We respect the do-it-yourself drive of a homeowner who wants to handle the job on their own, so much so that we provide how-to guides with instructions for replacement installation. If you're debating between hiring a pro and installing yourself, understand that replacing windows can be an undertaking. Make sure you’ve researched all the steps and purchased all the necessary window installation tools and materials. Only get started if you’re confident you can handle the job on your own.

farmhouse-style white home is getting new windows as two contractors work to install them

Types of Window Replacement Installation

Now that you understand the four options for window installers, let’s talk types of replacement. There are two main window replacement installation types: pocket replacement and full-frame replacement. Read about each method below to determine which is right for your project. If you’re unsure, a Pella expert at your local showroom or a Pella Certified Contractor will decide the best route to take depending on your home’s age, condition, build materials, budget and schedule.

Pocket Window Replacement

This method replaces the window while leaving the existing frame in place. Sometimes referred to as a retrofit or insert window installation, this process can be completed relatively quickly — it usually takes about an hour per window. With pocket replacement, your new window selection is limited by the size of the existing opening.

Full-Frame Window Replacement

This method is considered a total replacement as the existing window frame and sash are removed. It’s necessary when the existing frame is damaged or not in great shape, or when the new window will not fit the size or shape of the existing opening. The replacement window is installed in a new frame with new insulation as well as trim. Requiring more materials, time and labor, full-frame replacement usually costs more than pocket replacement. There is work to be done both inside and outside the home, but because the opening can be changed to accommodate an entirely new style of window, this method provides greater design flexibility.


How much does window installation cost?

There are numerous aspects that affect the cost of window installation. Here are just a few primary factors to consider:

  • Region: Installation cost varies in different markets, depending on demand and the number of skilled installers in your area.
  • Number of windows: The more windows, the more time, material, labor and cost required from installers.
  • Size of windows: Larger windows are typically more time- and labor-intensive to install.
  • Type of windows: Specialty windows and bay and bow windows usually cost more to install.
  • Location of window: Windows on the ground floor of a home are easier to replace than basement and upstairs windows.
  • Age of home: Older homes sometimes have non-standard window sizes or structural problems that require more time and attention to ensure proper installation.
  • Exterior of home: It’s usually easier to perform a full-frame replacement in a home with pliable siding than one with solid brick or stucco.
a single contractor applies the finishing sealant to black Pella double-hung windows

Window Installation Process

If you’ve chosen to work with Pella professionals for the window replacement process, these experts are committed to installing your windows properly, while valuing your time and respecting your home. Here’s how to prepare for and what to expect when working with a Pella crew.

How to Prepare for Installation Day

There are a few basic things you can help us out with before we arrive. Taking these small steps assures that the window replacement process goes as smoothly as possible. Pella professionals are trained to work around home furnishings, but you can help us out significantly by moving furniture and decorations away from the windows being replaced to give us a little extra elbow room. More important than anything else is the safety of your family. Please make arrangements to keep pets or children in a safe place away from the work area while we replace your windows.

two contractors are preparing to install new windows in a home by laying down protective tarps on the floor.
a contractor for Pella is carrying a mulled window unit to the place where it will be installed

What to Expect on Installation Day

On installation day, please plan to be available at home while our team is working. You can expect unmatched professionalism. Our team will park where it’s convenient for you, review the installation plan with you before getting to work and keep the work area tidy and secure. We’ll leave your home just as we found it with one exception — the replacement windows you’ve been waiting for will be installed and ready for use.

To make certain your home and belongings stay protected during the installation process, we’ll cover any work area with drop cloths. Drop cloths catch debris and dust, safeguarding your home from unwanted installation day remnants.

Next, we’ll carefully remove your old windows and dispose of them. After we have removed your old windows, we’ll begin the replacement window installation process. Depending on your installation type (pocket or full-frame replacement), installation can be fairly labor intensive and time consuming, so keep this in mind on installation day.

As we get nearer to completing your replacement window installation, we’ll finish the window with your selected interior or exterior trim and any necessary hardware.

You can trust that the team will keep you updated throughout the day as we continue to make progress, but don’t hesitate to ask any questions about the process. When we’ve completed the job to your satisfaction, we’ll thoroughly clean up. And as we haul away your old windows to our vehicles, someone from the Pella team will show you the completed project, teach you how to operate and care for your new windows and give you a chance to ask any questions.

When at last, installation day is finished, there’s really only one thing left to do. Sit back. Relax. And take in the beauty of your replacement windows.

Schedule a free consultation to find windows and doors for your home.

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