20 Best Window Companies in Michigan City, IN (2024 Reviews)

If you’re thinking of getting new windows, our guide to the top window installation companies can help.

We analyzed all the top-rated window companies in Michigan City and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated April 21, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

The EcoWatch team is all about helping Michigan City homeowners find eco-conscious solutions for their homes. During the winter months, the last thing you want is your heat to leak out of your drafty windows.

Installing efficient windows on your house can help you save money each month on your energy bills — and you can help the environment as well.

We’ve compiled this list of the best installation companies to help you in your search, so you can not only benefit from brand-new windows, but also save money on your electricity bills.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best Window Installation & Replacement Companies in Michigan City

The EcoWatch team evaluated several window installation companies in Michigan City to find the best ones for our readers. The companies mentioned in this article scored best in our review categories, which include energy-efficient offerings, local expertise, availability, price, customer service and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World has windows expertise in Michigan City. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the window installation industry, and it has established itself as one of the best companies in Michigan City. Its reputation is backed by all the positive reviews from customers online.

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 right company for you.

Energy Efficiency of Window World Windows

Window World has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. 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 Michigan City?

Prices aren’t mentioned on Window World’s website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to ask for a free quote from the company.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen has the best availability in Michigan City. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the window installation industry, and it has established itself as one of the best companies in Michigan City. Its reputation is backed by all the positive reviews from customers online.

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 right company for you.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. 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 Michigan City?

Prices aren’t mentioned on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to get more accurate pricing information is to ask for a free quote from the company.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Limited service area
  • Pros icon Some installations carried out by third-party contractors
  • Pros icon Quality of service will depend on your area

Universal Windows Direct has the best warranty in Michigan City. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This company has 20 years of experience in the window installation industry, and it has established itself as one of the best companies in Michigan City. Its reputation is backed by all the positive reviews from customers online.

If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the right company for you.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.

How much does Universal Windows Direct cost in Michigan City?

Prices aren’t mentioned on Universal’s website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. The best way to get more accurate pricing information is to ask for a free quote from the company.

Window Nation logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation has the best residential windows in Michigan City. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has 16 years of experience in the window installation industry, and it has established itself as one of the best companies in Michigan City. Its reputation is backed by all the positive reviews from customers online.

If you’re looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, this may be the right company for you.

Energy Efficiency of Window Nation Windows

Window Nation has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.

How much does Window Nation cost in Michigan City?

Prices aren’t mentioned on Window Nation’s website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. The best way to get more accurate pricing information is to ask for a free quote from the company.

We strive to remain unbiased and transparent by listing pros and cons for each company. Additionally, any partnerships do not affect our rankings.

More Window Companies in Michigan City

Renewal by Andersen of South Bend

South Bend, IN
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Skylights
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung

Website: https://www.renewalbyandersen.com/window-company/868-south-bend-in/about-us
Address: 710 Fellows St, South Bend, IN 46601
Phone: (574) 544-5409

Champion Replacement Windows of South Bend

South Bend, IN
4.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Double-Hung

Website: https://www.championwindow.com/South-Bend/
Address: 3235 Rosetta Pl Dr Suite 4, South Bend, IN 46628
Phone: (574) 807-0179

Power Home Remodeling

Chicago, IL
4.4
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://powerhrg.com/
Address: 2500 W Bradley Pl Unit G, Chicago, IL 60618
Phone: (847) 916-5363

Window World of Northwest Indiana

Valparaiso, IN
4.5
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation

Website: https://www.windowworldindiana.com/
Address: 1558 W Lincolnway, Valparaiso, IN 46385
Phone: (219) 477-2500

Glass Doctor of Michigan City

Michigan City, IN
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Doors
  • Service icon Window Repair
  • Service icon Mirrors
  • Service icon Glass Repair
  • Service icon Bay Windows
  • Service icon Glass Showers
  • Service icon Custom Glass
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: https://glassdoctor.com/michigan-city
Address: 2215 Franklin St Bay 3, Michigan City, IN 46360
Phone: (219) 872-8654

Meyer Glass & Mirror Company

Michigan City, IN
4.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Skylights
  • Service icon Mirrors
  • Service icon Custom Glass
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Storm/Impact Windows
  • Service icon Vinyl Frames
  • Service icon Metal Frames
  • Service icon Screen Repair

Website: http://meyerglassandmirror.net/
Address: 202 W Harrison St, Michigan City, IN 46360
Phone: (219) 874-6464

Phoenix Glass Service

La Porte, IN
3.4
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Skylights
  • Service icon Storm/Impact Windows
  • Service icon Glass Repair
  • Service icon Screen Repair
  • Service icon Window Repair
  • Service icon Mirrors
  • Service icon Custom Window Designs
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://phoenixglassservice.com/
Address: 751 S 400 W, La Porte, IN 46350
Phone: (219) 380-7941

Larry Miller Door & Glass

Valparaiso, IN
4.6
★★★★★

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Window Repair
    • Service icon Screen Repair
    • Service icon Glass Repair
    • Service icon Mirrors
    • Service icon Energy-Efficient Options
    • Service icon Glass Showers

    Website: https://www.larrymillerdoorglass.com/
    Address: 4406 Evans Ave, Valparaiso, IN 46383
    Phone: (219) 462-1187

    Glass Doctor of Northwest Indiana

    Valparaiso, IN
    4.8
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Price Transparency
    • Pros icon Educational Website

    Services Offered

    • Service icon Tempered Glass
    • Service icon Custom Glass
    • Service icon Energy-Efficient Options
    • Service icon Mirrors
    • Service icon Glass Showers
    • Service icon Window Replacement/Installation
    • Service icon Glass Repair
    • Service icon Window Repair

    Website: https://glassdoctor.com/valparaiso
    Address: 608 Roosevelt Rd, Valparaiso, IN 46383
    Phone: (219) 462-1149

    Jacksons Home Improvement

    Valparaiso, IN
    4.9
    ★★★★★
    • Pros icon Price Transparency
    • Pros icon Educational Website
    • Pros icon Free assessment
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Double-Hung
    • Service icon Glass Doors
    • Service icon Bay Windows
    • Service icon Glass Showers

    Website: https://getjacksons.com/
    Address: 551 Franklin St, Valparaiso, IN 46383
    Phone: (219) 707-8511

    Von Tobel

    Valparaiso, IN
    4.4
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Price Transparency
    • Pros icon Educational Website
    • Pros icon Free assessment

    Services Offered

    • Service icon Energy-Efficient Options
    • Service icon Window Replacement/Installation
    • Service icon Glass Showers

    Website: https://vontobels.com/von-tobel-valparaiso-indiana/
    Address: 256 S Washington St, Valparaiso, IN 46383
    Phone: (219) 462-6184

    Trout Glass & Mirror Inc

    Valparaiso, IN
    3.3
    ★★★★★

      Services Offered

      • Service icon Window Replacement/Installation
      • Service icon Mirrors

      Website: http://troutglass.com/
      Address: 3602 Enterprise Ave Suite A, Valparaiso, IN 46383
      Phone: (219) 926-8675

      Glass Doctor of Crown Point

      Crown Point, IN
      4.9
      ★★★★★
      • Pros icon Educational Website
      • Pros icon Price Transparency
      • Pros icon Good Customer Service

      Services Offered

      • Service icon Glass Showers
      • Service icon Custom Glass
      • Service icon Glass Repair
      • Service icon Window Repair
      • Service icon Mirrors
      • Service icon Window Replacement/Installation

      Website: https://glassdoctor.com/crown-point
      Address: 505 N Grant St, Crown Point, IN 46307
      Phone: (219) 310-2722

      Action Glass

      South Bend, IN
      4.6
      ★★★★★
      • Pros icon Educational Website
      • Pros icon Free assessment

      Services Offered

      • Service icon Glass Doors
      • Service icon Window Replacement/Installation
      • Service icon Mirrors
      • Service icon Window Repair
      • Service icon Glass Showers

      Website: http://www.actionglasscompany.net/
      Address: 54978 Mayflower Rd, South Bend, IN 46628
      Phone: (574) 232-7500

      Midwest Glass & Mirror

      Stevensville, MI
      4.2
      ★★★★★
      • Pros icon Good Customer Service
      • Pros icon Price Transparency

      Services Offered

      • Service icon Glass Doors
      • Service icon Glass Showers
      • Service icon Window Replacement/Installation
      • Service icon Vinyl Frames
      • Service icon Skylights
      • Service icon Mirrors
      • Service icon Custom Glass

      Website: http://www.midwestglass.com/
      Address: 5275 Red Arrow Hwy, Stevensville, MI 49127
      Phone: (269) 428-4464

      Glass Doctor of St. Joseph, MI

      St Joseph, MI
      4.4
      ★★★★★
      • Pros icon Price Transparency
      • Pros icon Educational Website
      • Pros icon Good Customer Service

      Services Offered

      • Service icon Energy-Efficient Options
      • Service icon Window Repair
      • Service icon Glass Showers
      • Service icon Mirrors
      • Service icon Window Replacement/Installation
      • Service icon Custom Glass
      • Service icon Glass Repair

      Website: https://glassdoctor.com/st-joseph-mi
      Address: 2360 S Cleveland Ave, St Joseph, MI 49085
      Phone: (269) 982-2843

      Glass Doctor of South Bend, IN

      South Bend, IN
      4.7
      ★★★★★
      • Pros icon Educational Website
      • Pros icon Good Customer Service
      • Pros icon Price Transparency

      Services Offered

      • Service icon Window Replacement/Installation
      • Service icon Energy-Efficient Options
      • Service icon Glass Doors
      • Service icon Custom Glass
      • Service icon Glass Showers
      • Service icon Glass Repair
      • Service icon Window Repair
      • Service icon Mirrors

      Website: https://glassdoctor.com/mishawaka
      Address: 2623 E Mishawaka Ave, South Bend, IN 46615
      Phone: (574) 255-6156

      Premier Window System Inc.

      Crown Point, IN
      4.1
      ★★★★★
      • Pros icon Free assessment
      • Pros icon Good Customer Service
      • Pros icon Price Transparency
      • Pros icon Educational Website

      Services Offered

      • Service icon Window Replacement/Installation

      Website: http://www.mypremierwindow.com/
      Address: 6430 W Lincoln Hwy Hwy, Crown Point, IN 46307
      Phone: (219) 864-7455

      Preferred Window and Door Inc

      Lynwood, IL
      4.7
      ★★★★★
      • Pros icon Price Transparency
      • Pros icon Free assessment
      • Pros icon Educational Website
      • Pros icon Timely Service
      • Pros icon Good Customer Service

      Services Offered

      • Service icon Bay Windows
      • Service icon Storm/Impact Windows
      • Service icon Double-Hung
      • Service icon Window Repair
      • Service icon Energy-Efficient Options
      • Service icon Window Replacement/Installation
      • Service icon Vinyl Frames
      • Service icon Glass Doors

      Website: https://www.preferredwindowanddoor.com/
      Address: 3280 E Lincoln Hwy, Lynwood, IL 60411
      Phone: (708) 895-3667

      Schillings

      St John, IN
      4.4
      ★★★★★
      • Pros icon Price Transparency
      • Pros icon Educational Website
      • Pros icon Free assessment
      • Pros icon Good Customer Service

      Services Offered

      • Service icon Glass Showers
      • Service icon Custom Window Designs
      • Service icon Mirrors
      • Service icon Energy-Efficient Options
      • Service icon Window Replacement/Installation
      • Service icon Glass Doors
      • Service icon Skylights

      Website: https://www.schillings.com/
      Address: 8900 Wicker Ave, St John, IN 46373
      Phone: (219) 365-8585
      Michigan City Window Cost Calculator

      Calculate how much you can expect to pay for window installation and replacement in Michigan City, IN using our customized window cost calculator.

      Estimated Window Cost:
      161 homeowners have requested a free estimate in the last 3 days.

      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 Michigan City Saves You Money

      When you switch to energy-efficient windows, you may see several benefits, such as:

      • 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, leaky or potentially even damaged in some way. Updating your windows could help raise the value of your property if you decide to sell.
      • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
      • Reduce your carbon footprint: Decreasing how much energy you use also lowers your carbon emissions. You could reduce it by about 622 pounds.
      • Save on power bills: Since energy-efficient windows lower the amount of energy needed to heat or cool your home, the switch can help you save about $376 annually on your energy bills in Michigan City.

      Estimated Cost of Window Replacement in Michigan City

      Each window installation company offers varying services and has varying costs based on a few factors.

      How Much Do New Windows Cost?

      The national average cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. But costs vary considerably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door replacements, which have a higher price tag.

      It’s also worth keeping in mind that energy-efficient windows will cost more initially, but Energy Star estimates that upgrading the windows on your Michigan City home can mean an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. How much you’ll save by switching to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

      Another factor that affects the overall cost is the material you pick for your frame. Aluminum frames are typically the least pricey and are sturdy and relatively maintenance-free, but they provide poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.

      What Services do Window Installers Offer?

      Generally, there are two kinds of window installation services you can get: full-frame and pocket installations.

      Full-frame installations are necessary when you want a new style or your window has a lot of rot. With this service, your installers will replace the full window, including the frame, trim and sill. Pocket installations (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are simpler and won’t cost as much, but you can’t do this type of installment if you have any pre-existing rot or water damage.

      If you’re still trying to decide which kind of installation to get, you can talk to your installer and get their recommendation. The choice mostly is influenced by the age of your window frames and if there’s any damage present.

      Best Availability

      Renewal by Andersen

      ★★★★★
      4.5
      • Great industry reputation
      • Member of US Green Building Council
      • Manufactures products in-house
      Buy One Window, Get One 40% OFF
      Get Estimate

      Best Energy-Efficient Features

      Champion

      ★★★★★
      4.5
      • Many years of experience
      • Low prices relative to competitors
      • Limetime warranty
      Buy 2 Windows, Get 2 Free
      Get Estimate

      Power Home

      ★★★★★
      4.5
      • Uses eco-friendly materials
      • Well-trained, certified installers
      • Lifetime or lengthy warranty
      Next-Day Appointments Available
      Get Estimate

      How We Choose the Best Window Installers in Michigan City

      In our search to make your home improvements easier and more eco-friendly in Michigan City, the EcoWatch team examined many companies before deciding on these. We have decided to evaluate the top window installers in Michigan City mainly based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows can lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

      Service Area

      Because this is a guide for Michigan City, we paid more attention to companies that serve the city. There are other reputable providers that didn’t make our list because of the low odds that they would serve the average homeowner in Michigan City.

      Work Quality

      When it comes to new windows, the quality and range of services often plays just as important of a role in insulation and performance as the type of window you opt for. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

      Customer Reviews

      Customer feedback is another super important review factor. If most customers don’t have nice feedback about their experience with a certain window installation company, it won’t be featured on EcoWatch.

      Cost

      Cheaper windows certainly don’t mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers’ prices, we gave higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.

      Warranty

      Protecting your investment in new windows is important. That’s why window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.

      Years of Experience

      Due to Michigan City’s climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of Michigan City window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

      Michigan City, IN Window Replacement FAQs

      How much does a window install cost?

      The national average cost of installing a single window is about $600 but can range between $200 and $1,200, depending on a variety of factors. The price is typically influenced by the location of your property, the type and material of the window and the size of the window. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.

      What are the types of windows?

      The most common kinds of windows for homes include: double-hung and single-hung windows, bay windows, awning windows, picture windows, slider windows, casement windows and transom windows.

      What do window installers do?

      Window installation professionals travel to your property to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others install their own windows. The installer will also clean up after the installation.

      How do you know it’s time to replace your windows?

      Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Other than that, if your windows have any damage on them, or they have become difficult to open or close, they may need to be replaced.

      Should I replace my windows all at the same time?

      If you want to get more efficient windows and save money on energy costs, replacing all the windows together is the only way to gain that benefit. On the other hand, if you have just a few windows that are broken or drafty, you can replace just those.