20 Best Window Companies in Lititz, PA (2023 Reviews)

Looking to replace your windows? We've got all the information you need in this list of the top window installation companies.

We analyzed all the top-rated window companies in Lititz 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 September 15, 2023

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.

A review of the best window installation companies in Lititz may not seem like the most riveting article on EcoWatch, but trust us, windows have a more direct impact on your life than you might think. Outdated windows could lead to having higher energy bills during the winter or summer months.

That's also bad news for the environment because the additional energy used by leaky windows increases your carbon footprint.

We've put together this guide on the best installation companies to help you in your research, so you can not only enjoy brand new windows, but also save money on your power bills.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

Best Window Installation & Replacement Companies in Lititz

The EcoWatch team researched many window companies in Lititz to find the best ones for our readers. The providers we've mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service and beyond.

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 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 provides services to 200 locations nationwide. The company has hundreds of positive reviews from customers on online review websites.

It 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 Windows

Window World is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.

How much does Window World cost in Lititz?

Prices aren’t listed on Window World’s website, but it's known for offering some of the most affordable window installations around. For more detailed information on pricing, you can inquire about a 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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been in business since 1995 and currently provides services to nearly every state except Mississippi and West Virginia. The company has hundreds of positive reviews from customers on online review websites.

It 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 Windows

Renewal by Andersen is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in Lititz?

Prices aren’t listed 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. For more detailed information on pricing, you can inquire about a quote from the company.

Aeroseal Windows logo
FAST QUOTE
as little as 30 seconds
Best for Businesses

Aeroseal Windows

★★★★★
BBB Rating: A+
Locations: Regional
Founded: 1999
Pros:
  • Pros icon Many years of experience
  • Pros icon Great industry reputation
  • Pros icon Low number of customer complaints
  • Pros icon Manufactures products in-house
  • Pros icon Custom Designs
Cons:
  • Pros icon No lifetime warranty
  • Pros icon Not ideal for residential installations

Aeroseal Windows is an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. This company has 23 years of experience in the windows industry, and it has become one of the best companies in the business. The provider has hundreds of glowing reviews from customers online.

It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

Aeroseal Windows has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.

How much does Aeroseal Windows cost in Lititz?

Aeroseal does not detail prices on its website, but it provides high-quality windows at a competitive price point. Receiving a free quote on its website is the best way to get more accurate pricing information.

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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This company has been operating since 2002 and currently services 27 states nationwide.

It has established itself as a company that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

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. Not all of Universal’s offerings are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.

How much does Universal Windows Direct cost in Lititz?

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. Getting a free quote on its website is the best way to know for sure.

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 is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has been in business since 2006 and currently provides services to residents within 75 miles of its showrooms, which are in 13 states. The company has hundreds of positive reviews from customers on online review websites.

It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.

Energy Efficiency of Window Nation Windows

Window Nation is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Window Nation representative when inquiring about services.

How much does Window Nation cost in Lititz?

Prices aren’t listed 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. For more detailed information on pricing, you can inquire about a quote from the company.

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

More Window Companies in Lititz

Renewal by Andersen

Mechanicsburg, PA
4.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Sliding Glass
  • Service icon Commercial Windows
  • Service icon Stained Glass
  • Service icon Window Replacement
  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Custom Window Designs

Website: https://www.renewalbyandersen.com/window-company/735-central-pennsylvania/retailer
Address: 4856 Carlisle Pike, Mechanicsburg, PA 17050
Phone: (717) 364-1880

Window World of Central PA

York, PA
4.4
★★★★★
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Bay Windows
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Custom Window Designs
  • Service icon Window Replacement
  • Service icon Sliding Glass

Website: https://www.windowworldpa.com/
Address: 4370 W Market St, York, PA 17408
Phone: (717) 792-2322

Champion Replacement Windows of Baltimore

Rosedale, MD
3.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Window Replacement

Website: https://www.championwindow.com/Baltimore/
Address: 23 Fontana Ln, Rosedale, MD 21237
Phone: (410) 202-8636

Window Nation

Camp Hill, PA
4.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Stained Glass
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Residential Windows

Website: https://www.windownation.com/harrisburg-showroom/
Address: 3401 Hartzdale Dr Suite 114/115, Camp Hill, PA 17011
Phone: (717) 230-1080

Ronafa Window & Door

Ephrata, PA
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows

Website: https://www.ronafa.com/
Address: 400 W Main St, Ephrata, PA 17522
Phone: (717) 606-2829

RFO Contracting

Lancaster, PA
4.2
★★★★★
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Stained Glass
  • Service icon Fast Delivery
  • Service icon Window Repair
  • Service icon Window Replacement
  • Service icon Glass Showers

Website: https://rfocontracting.com/
Address: 203 Blossom Hill Dr, Lancaster, PA 17601
Phone: (717) 435-3837

B&E Roofing and Remodeling

Leola, PA
4.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Glass Showers
  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.beroofing.com/
Address: 174 E Main St, Leola, PA 17540
Phone: (717) 843-7663

Susquehanna Valley Door and Window

Lancaster, PA
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://svdoorandwindow.com/replacement-windows-and-doors-lancaster-pa/
Address: 4100 Crossings Blvd d301, Lancaster, PA 17601
Phone: (717) 781-8087

Lancaster Building Supply Windows Doors & More, LLC

Lancaster, PA
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Double-Hung
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Residential Windows

Website: http://lancasterdoor.com/
Address: 1851 Lincoln Hwy E, Lancaster, PA 17602
Phone: (717) 394-4724

Howell's Glass Co. Inc.

Lancaster, PA
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Custom Window Designs
  • Service icon Window Replacement
  • Service icon Residential Windows

Website: http://www.howellsglass.com/
Address: 114 S Queen St, Lancaster, PA 17603
Phone: (717) 397-3734

Auker Home Improvements

Ephrata, PA
3.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Fast Delivery
  • Service icon Glass Showers
  • Service icon Window Replacement
  • Service icon Residential Windows

Website: https://www.aukerhomeimprovements.com/
Address: 31 W Mohler Church Rd, Ephrata, PA 17522
Phone: (717) 738-3734

Red Rose Mirror & Glass Inc

Lancaster, PA
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs

Website: http://www.redrosemirrorandglass.com/
Address: 2608 Columbia Ave Rear, Lancaster, PA 17603
Phone: (717) 394-4310

Hockley Glass & Mirror

Lebanon, PA
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Fast Delivery

Website: https://www.hockleyglassmirror.com/
Address: 1504 Cumberland St ste 320, Lebanon, PA 17042
Phone: (717) 273-0221

KSW Construction LLC

Paradise, PA
3.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Window Replacement
  • Service icon Residential Windows

Website: https://www.kswconstructionllc.com/
Address: 3123 Lincoln Hwy E Suite 11, Paradise, PA 17562
Phone: (717) 208-7364

Good's Glass Services

Mohnton, PA
3.9
★★★★★

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Window Replacement

Website: http://www.goodsglass.com/
Address: 280 Orchard Rd, Mohnton, PA 19540
Phone: (717) 445-5708

Home Services at The Home Depot

Lebanon, PA
3.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Stained Glass
  • Service icon Commercial Windows
  • Service icon Window Replacement

Website: https://www.homedepot.com/l/Lebanon-PA/PA/Lebanon/17042/4141/services
Address: 801 E Walnut St, Lebanon, PA 17042
Phone: (717) 340-3901

Install America

Mohnton, PA
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Full-Service Installations
  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Window Replacement
  • Service icon Custom Window Designs

Website: https://www.installamerica.com/
Address: 1353 Alleghenyville Rd, Mohnton, PA 19540
Phone: (866) 670-5213

J M Ball Construction Inc

Sinking Spring, PA
3.7
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Window Replacement
  • Service icon Custom Window Designs

Website: http://www.jmballconstruction.com/
Address: 3101 Regency Dr, Sinking Spring, PA 19608
Phone: (610) 670-0006

Viwinco Windows

Morgantown, PA
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Fast Delivery
  • Service icon Bay Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Residential Windows

Website: http://www.viwinco.com/
Address: 851 Hemlock Rd, Morgantown, PA 19543
Phone: (610) 286-8884

Garrety Glass - Betterliving Sunrooms

Dallastown, PA
4.5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Window Replacement
  • Service icon Window Repair
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Residential Windows

Website: https://garretyglass.com/
Address: 2785 S Queen St, Dallastown, PA 17313
Phone: (717) 741-9949
Lititz Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Lititz, PA 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 Lititz Saves You Money

By switching to energy-efficient windows, you can enjoy several benefits, such as:

  • Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
  • Save on electricity bills: After you upgrade to energy-efficient windows, you can expect a reduction in your bills by about 12% because you'll require less energy to heat or cool your house.
  • More efficient energy usage in your household: In Lititz where the summers can be quite hot, energy-efficient windows decrease how much cool air is lost through your windows, making it easier to keep your house cool.
  • Reduce your carbon footprint: By using less energy once upgrading to Energy Star certified windows, you'll also be lowering your indirect greenhouse gas emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Lititz

Windows come in various purposes, shapes and styles, so costs and services will differ remarkably depending on your project. Below, we describe the typical cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

Though the national average of installing a single window is around $600, it can range from $200 to $1,200. But costs will vary significantly depending on your location, the current condition of your home, the quality of your products and the number of windows you need. A lot of window companies also offer replacement door installations and other add-ons like baths, shutters, coating and more. Additional services will increase overall project costs.

Whether or not you pick energy-efficient windows is another factor that will determine the cost. These will typically cost more than other windows, but on the other hand, you can save about $308 a year on your energy bills in Lititz.

Costs will also vary depending on the material you pick for your window frames. Aluminum frames cost the least. They're sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made with wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

The first thing to ask yourself when considering a window replacement is: Should you get a full-frame installation or a pocket installation?

Full-frame installations involve replacing the complete 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 noticeable damage or rot. Full-frame installations are more involved and will increase the total cost. Pocket installations are simpler and won't carry as large a bill, as they entail merely replacing the window within its existing frame. But if the frame has any damage or rot, you may need a full-frame installation instead.

If you're still debating which type of installation you should get, you can talk to your installer and get their advice. The decision mostly is influenced by the age of your window frames and if there's any damage.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

How We Choose the Best Window Installers in Lititz

In our hunt to make your home improvements easier and more eco-friendly in Lititz, the EcoWatch team evaluated many companies before landing on these. We have reviewed the top window installers in Lititz mainly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows can reduce your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

Since this is a guide for Lititz, we paid more attention to companies that serve the city. There are other reputable providers that didn't make the cut because they wouldn't be able to serve homeowners in Lititz.

Work Quality

When installing new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the brand of window you choose. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If most customers don't have positive things to say about their experience with a certain company, you won't see it featured on EcoWatch.

Cost

This one is a give-and-take: similar to most services, cheap window installation companies are not going to provide the highest quality service. On the other hand, we want to make sure we're highlighting companies that provide a spectrum of price and financing options so they're accessible to most homeowners.

Warranty

As discussed, windows are a considerable investment, so you'll want to be certain that investment is protected. Window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Due to Lititz's climate, homeowners will want to mitigate rot, low efficiency and water damage. We factored in local experience to reflect the ability of Lititz window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

Lititz, PA Window Replacement FAQs

What is the typical cost to replace windows?

The national average cost of installing one window is about $600 but can range from $200 to $1,200, depending on a few different factors. The price is typically dependent on the size of the window, the type and material of the window and the location of your property. Also, bear in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.

What type of window is the best for energy efficiency?

Generally, double-pane windows are more efficient than single-pane windows and windows that don't open are more efficient than windows that do. To be sure you'll get the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — they're certified energy-efficient by the U.S. Department of Energy.

What do window installation companies do?

Window installation companies will do the entire process — from replacing old windows with new ones to cleaning up after the windows have been put in place. In addition, a lot of companies offer window manufacturing, customization and repairs.

Should I replace all my windows at the same time?

If your windows are more than 20 years old, it's probably time to replace all of them. At that point, they are usually less efficient, leakier and/or more damaged than new windows. Doing your windows all at once will involve less paperwork and less time.

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