5 Best Window Companies in Spencer, IA (2025 Reviews)
When the time comes to upgrade your windows, our list of the top window installation companies can help you find the provider for you.
We analyzed all the top-rated window companies in Spencer and selected the best 5 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
Although green energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house’s efficiency can also have a large impact on home energy conservation. Drafty, leaky windows could lead to having higher electric bills during the winter or summer months.
Thankfully, saving you money with more efficient windows also aligns with our goals of reducing energy usage for the environment.
Because windows have such a large impact on your home, choosing the right company for you is a big decision to make. That’s why the EcoWatch team has made this list of the top window installation companies, so you can more easily make an informed decision.
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
Best Window Installation & Replacement Companies in Spencer
The EcoWatch team evaluated dozens of installers in Spencer to find the best window replacement companies for our readers. The providers we’ve included in this article scored best in our categories: energy-efficient offerings, price, customer service, availability and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the windows industry, and it has become one of the most respected companies in Spencer.
If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, this may be the perfect company for you.
Energy Efficiency of Window World WindowsWindow World is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Window World representative when inquiring about services.
How much does Window World cost in Spencer?Window World doesn’t have any prices listed on its website, but it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate pricing information.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the windows industry, and it has become one of the most respected companies in Spencer.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the perfect company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Spencer?Andersen doesn’t have any prices listed on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Requesting a free quote on its website is the best way to get more accurate pricing information.
We aim to be unbiased and transparent by mentioning pros and cons for every company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Spencer
Custom Windows Plus
Allendorf, IAFree assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Custom Window Designs
Royal Glass LLC
Windom, MNPrice Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Mirrors
Energy-Efficient Options
Glass Showers
Glass Doctor of Rock Valley, IA
Rock Valley, IAGood Customer Service
Educational Website
Price Transparency
Services Offered
Glass Doors
Custom Glass
Glass Showers
Mirrors
Glass Repair
Window Repair
Energy-Efficient Options
Window Replacement/Installation
Meyer Home Improvement of North Central Iowa LLC
Algona, IAGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
BV Glass Co.
Storm Lake, IAEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Custom Glass
Window Repair
Glass Showers
Calculate how much you can expect to pay for window installation and replacement in Spencer, IA using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Spencer Saves You Money
When you switch to energy-efficient windows, you may see some benefits, including:
- Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can lower your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
- Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes usually have windows that are outdated, drafty or potentially even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
- Save on energy bills: Upgrading to energy-efficient windows lowers your energy bills by about 12% since you need less energy.
Estimated Cost of Window Replacement in Spencer
When considering window installation, each company provides varying services and costs. Let’s go over some typical costs and services.
How Much Do New Windows Cost?
Even though the national average cost to replace one window is about $600, it can range anywhere from $200 to $1,200. How much it will cost is based on several factors, such as number of windows, size, type, the location of your home, material and more.
Bear in mind that energy-efficient windows may come at a higher price point, but Energy Star estimates the upgrade will save you between $101 and $583 a year when you replace single-pane windows and between $27 and $197 per year when installing double-pane, clear glass windows. These savings vary depending on your local climate, energy rates and individual home characteristics.
The cost of your window installation will also vary depending on the kind of material you choose for the frames. Wood windows are generally the most expensive, although it depends on whether they are completely wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
Generally, there are two types of window installation services companies offer: full-frame and pocket installations.
Full-frame installations involve replacing the full window, including the frame, sill and trim. You most likely need a full-frame installation when you want a new style or your window has significant damage or rot. Because these installations are more involved, they will increase the overall cost. A pocket installation entails replacing a window within the existing frame, which tends to be cheaper than a full-frame installation.
Your window installation company will be able to help you understand what’s best for your needs. In Spencer, the decision will mostly be based on the age of your windows and if there’s any damage. Wood can decay if it’s not properly maintained over the years, so it’s a good idea to have a professional examine your frames and window sills.
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
How We Choose the Best Window Installers in Spencer
In our hunt to make your home improvements easier and more eco-friendly in Spencer, the EcoWatch team chose the above companies as the top window installation companies in the city. We have assessed the top window replacement companies in Spencer primarily based on energy efficiency, as it’s what’s best for the environment and for you as a homeowner. Energy-efficient windows have been shown to reduce your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve the Spencer area so you can find the best window installation company near you.
Work Quality
When picking new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the brand of window you get. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
We analyzed patterns in recent online reviews to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across nearly every category, including professionalism, warranty, quality of installation, cost, quality of parts and more.
Cost
Cheaper windows certainly don’t mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing providers’ prices, we awarded higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed previously, windows are a considerable investment, so you’ll want to make sure that investment is protected. Window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Spencer’s climate, homeowners need to be wary of water damage, rot and low efficiency. We factored in local experience to reflect the ability of Spencer window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Spencer, IA Window Replacement FAQs
How much should window installation cost?
The typical cost of installing a window ranges from $450 to $650. There are several factors that affect how much it costs, which include the number of windows, styles and sizes of windows, local labor costs, how energy-efficient the windows are, the materials used in designing the windows and your property’s location.
Which kind of window should I get?
A window’s energy efficiency is influenced by a variety of factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are often the most energy-efficient since they are certified by the U.S. Department of Energy.
Can I replace my own windows?
If you’re handy and know how to replace a window, it’s possible to install your own windows. But if you don’t have the time or experience, we don’t recommend trying it.
When is the best time of year to replace windows?
Replacement windows can be installed at any time, but autumn might be the best season. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn’t get into your home, so the temperature outside isn’t necessarily a big factor. What’s most important is that the weather should be dry.