3 Best Window Companies in Helena, MT (2024 Reviews)
When it’s time to upgrade your windows, our reviews of the best window installation companies can help you find the provider for you.
We analyzed all the top-rated window companies in Helena and selected the best 3 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
Whether you're updating for aesthetics or have old windows, windows play a crucial role in conserving electricity in your home. Drafty windows can cost you in power bills. As a matter of fact, the Department of Energy estimates that 25-30% of your house’s heat or cool air could be lost through your windows.
Replacement windows improve the insulation in your home, not only making you more comfortable during the summer and winter, but also saving you money and helping the environment.
Because windows have such a considerable impact on your home, picking the right company for you is a big choice to make. That’s why the EcoWatch team has created this list of the top window replacement companies, so you can more easily make an informed decision.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
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 Window Installation & Replacement Companies in Helena
The EcoWatch team evaluated dozens of window companies in Helena to find the best ones for our readers. We assessed the providers on energy-efficient offerings, local experience, price, customer service, coverage area 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 been in business since 1995 and currently services 200 locations nationwide. The provider has a lot of glowing reviews from customers on online review websites.
It has established itself as a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsThere are a wide variety of window types that Window World offers, some of which are Energy Star products. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Helena?Window World doesn’t have any cost information listed on its website, but it's known for offering some of the most affordable window installations around. If you’d like to know for sure, you can get a quote on the company’s website.

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 been in business since 1995 and currently services nearly every state except Mississippi and West Virginia. The provider has a lot of glowing reviews from customers on online review websites.
It has established itself as a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsThere are a wide variety of window types that Renewal by Andersen offers, some of which are Energy Star products. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Helena?Andersen doesn’t have any cost information 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. If you’d like to know for sure, you can get a quote on the company’s website.
We’ve recommended companies with shining reputations, but note that these are national companies, so your service may depend on your local crew. We have tried to be unbiased and transparent by mentioning pros and cons for every company reviewed.
More Window Companies in Helena
Glass Doctor of Butte, MT
Butte, MTEducational Website
Price Transparency
Good Customer Service
Services Offered
Mirrors
Glass Repair
Glass Showers
Window Repair
Window Replacement/Installation
Custom Glass
Energy-Efficient Options
Pella Windows & Doors of Helena
Helena, MTGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Double-Hung
Window Replacement/Installation
Glass Doors
Affordable Windows
Helena, MTGood Customer Service
Services Offered
Window Replacement/Installation
Custom Glass
Mirrors
Glass Showers
Calculate how much you can expect to pay for window installation and replacement in Helena, MT 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 Helena Saves You Money
There are several benefits of upgrading to energy-efficient windows. A few reasons you may want to consider making the change include the following:
- Reduce your carbon footprint: Reducing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 318 pounds.
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Updating your windows can make your home more comfortable and also help raise the value of your property if you decide to sell.
- Save money on power bills: Upgrading to energy-efficient windows reduces your energy bills by about 12% since you need less energy.
- Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading due to their ability to filter out harmful UV rays.
Estimated Cost of Window Replacement in Helena
When considering window installation, each company offers varying services and prices. Let’s go over some typical costs and services.
How Much Do New Windows Cost?
Generally, Helena homeowners can expect their window replacements to range from $250 to $1,200. The most common installations sit at about $600. How much it will cost is based on several factors, like size, type, the location of your home, number of windows, material and more.
It’s also worth bearing in mind that energy-efficient windows will typically cost more upfront, but Energy Star estimates that switching out the windows on your Helena home can mean an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. The amount of money you’ll save by switching to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
How much your window installation costs will also vary based on the kind of window material you choose for the frames. Wood windows are typically the most expensive, though 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 shown to be more efficient.
What Services do Window Installers Offer?
The first step when planning a window replacement is to decide whether you need a full-frame or pocket installation.
A full-frame installation is a replacement of the full window. This service involves removing the old window, the windowsill, and the exterior and interior trim. It also involves other materials, including insulation and drip edges, which increase the overall cost of the project. Also worth noting: it’s not uncommon for homeowners to have to touch up the paint around the window after a full-frame installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are simpler and will be less expensive, but you can’t do this type of installment if you have any pre-existing rot or water damage.
If you’re unsure which window installation service you should get, your installer can assist you. Generally, the choice is influenced by factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
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
How We Choose the Best Window Installers in Helena
EcoWatch reviews are different from other reviews since we examine these companies through a sustainability lens. Along with energy efficiency, we evaluated several window installers in Helena and assigned rankings using the following methodology:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve the Helena area so you can find the best window installation company near you.
Work Quality
We’re certain that you’re looking for a company to do a great job installing windows. We’ve vetted each company featured on this list to make sure its contractors are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.
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 factor we place the most value on, as it reflects the quality of services across nearly every category, including professionalism, warranty, quality of parts, cost, quality of installation and more.
Cost
This one is a give-and-take: similar to other services, cheap window installers may not provide the most quality service. On the other hand, we want to ensure we’re highlighting companies that provide a wide range of price and financing options so they’re accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for a while. Window installers that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.
Helena, MT Window Replacement FAQs
How much should a window install cost?
The average cost of replacing one window can range between $450 and $650. There are a variety of factors that affect the price, such as local labor costs, styles and sizes of windows, your property’s location, how energy-efficient the windows are, the materials used in designing the windows and the number of windows.
What are the different types of windows?
There are several different kinds of windows you can get for your home, including bay windows, slider windows, awning windows, double-hung and single-hung windows, picture windows, transom windows and casement windows.
Can I replace my own windows?
If you’re handy and have experience with installing a replacement window, you may be able to install your own windows. However, if you don’t have the time or experience, we don’t recommend it.
What time of year is a good time to replace my windows?
Replacement windows can be installed any time of the year, 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 doesn’t necessarily matter that much. What’s most important is that the weather should be dry.