20 Best Window Companies in Shaler, PA (2024 Reviews)

Looking to upgrade your windows? We’ve got you covered in this list of the top window installation companies.

We analyzed all the top-rated window companies in Shaler 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 June 24, 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.

A review of the best window replacement companies in Shaler may not seem like the most captivating article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might think. Drafty windows can cost you in energy bills. In fact, the Department of Energy estimates that 25-30% of your house’s heat or cool air could be lost through your windows.

That’s bad for your bank account and the environment, but one of the best window installation companies can help you with that.

As windows are so important for your home, choosing the best company for you is a big choice to make. That’s why the EcoWatch team has made this list of the best window installation companies, so you can make an informed decision more easily.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
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 Shaler

The EcoWatch team assessed dozens of installers in Shaler to find the top window replacement companies for our readers. The companies reviewed in this article scored best in our categories, including energy-efficient offerings, 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 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 serves 200 locations nationwide.

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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality 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 Shaler?

Window World doesn’t have any cost information available on its website, but it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can ask for a quote on the company’s website.

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 serves nearly every state except Mississippi and West Virginia.

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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality 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 Shaler?

Andersen doesn’t have any cost information available 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 more accurate information, you can ask for a quote on the company’s website.

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 been in business since 1999 and currently serves 13 states and Washington D.C.

It installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

Aeroseal Windows carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality 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 Shaler?

Aeroseal doesn’t have any cost information available on its website, but it provides high-quality windows at a competitive price point. If you’d like more accurate information, you can ask for a quote on the company’s website.

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 serves residents within 75 miles of its showrooms, which are in 13 states.

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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality 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 Shaler?

Window Nation doesn’t have any cost information available on its 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. If you’d like more accurate information, you can ask for a quote on the company’s website.

Please note that the following companies are national, which means the quality of customer service may depend on your local team. We have tried to stay unbiased and transparent by describing pros and cons for every company.

More Window Companies in Shaler

Renewal by Andersen of Greater Pittsburgh

Monroeville, PA
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.renewalbyandersen.com/window-company/086-pittsburgh-pa/about-us
Address: 1640 Golden Mile Hwy, Monroeville, PA 15146
Phone: (724) 387-1305

Power Home Remodeling

Coraopolis, PA
4.8
★★★★★
  • Pros icon Energy-efficient
  • Pros icon Lifetime labor warranty
  • Pros icon Full-home remodeling
  • Pros icon Good Customer Service

Services Offered

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

Website: https://powerhrg.com/
Address: 1325 Cherrington Pkwy Suite 300, Coraopolis, PA 15108
Phone: (484) 483-6216

Window Nation

Monroeville, PA
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation

Website: https://www.windownation.com/replacement-windows-pittsburgh/
Address: 9001 Rico Dr, Monroeville, PA 15146
Phone: (412) 357-2760

Specialty Window & Door

West Homestead, PA
5.0
★★★★★
  • Pros icon Variety of styles and materials
  • Pros icon Locally owned and operated
  • Pros icon Free in-person consultation
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Bay Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation

Website: http://specialtywindowanddoor.com/
Address: 1206 Breezewood Dr, West Homestead, PA 15120
Phone: (412) 462-7375

Windows Pittsburgh

Pittsburgh, PA
4.9
★★★★★
  • Pros icon Custom window designs
  • Pros icon Full-service window replacement
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Financing options available
  • Pros icon Free assessment

Services Offered

  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Bay Windows

Website: http://www.windowspittsburgh.com/
Address: A Corporate office Appointment Required, 220 Shady Knoll Dr Suite 2, Pittsburgh, PA 15220
Phone: (412) 279-1112

Ireland Contracting, LLC

Glenshaw, PA
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Educational Website

Services Offered

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

Website: https://irelandcontracting.com/
Address: 1310 William Flinn Hwy, Glenshaw, PA 15116
Phone: (800) 639-7663

Allegheny Millwork & Lumber

Pittsburgh, PA
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

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

Website: http://www.alleghenymillworklumber.com/
Address: 1001 Muriel St, Pittsburgh, PA 15203
Phone: (412) 431-4224

American Window Industries Inc.

Pittsburgh, PA
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.americanwindowpittsburgh.com/
Address: 106 Rockwood Ave, Pittsburgh, PA 15221
Phone: (412) 823-2320

Legacy Remodeling

Pittsburgh, PA
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

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

Website: http://www.legacyremodeling.com/
Address: 3090 W Liberty Ave, Pittsburgh, PA 15216
Phone: (724) 573-8118

Dun-Rite Window & Door

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

Services Offered

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

Website: http://www.getitdun-rite.com/
Address: 718 Main St, Pittsburgh, PA 15215
Phone: (412) 781-8200

West Shore Home

Pittsburgh, PA
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Bay Windows

Website: https://westshorehome.com/locations/pittsburgh-pa/
Address: 460 Rodi Rd, Pittsburgh, PA 15235
Phone: (412) 530-0729

Monroeville Glass Block LLC

Verona, PA
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Window Replacement/Installation

Website: https://www.monroevilleglassblock.net/
Address: 4356 Verona Rd, Verona, PA 15147
Phone: (412) 731-8559

Forest Knoll Construction

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

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.forestknollconstruction.com/
Address: 4885A McKnight Rd Suite 195, Pittsburgh, PA 15237
Phone: (412) 932-3095

Pittsburgh Window & Door Co

Pittsburgh, PA
4.5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Repair
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • Service icon Screen Repair
  • Service icon Wood Frames

Website: http://www.pghwindowdoor.com/
Address: Stock House, 100 Evergreen Ave, Pittsburgh, PA 15209
Phone: (412) 821-4322

Window Installation Specialists

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Wood Frames
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Fiberglass Frames

Website: https://windowinstallationpittsburgh.com/
Address: 3945 Forbes Ave #462, Pittsburgh, PA 15213
Phone: (724) 446-0275

ABC Glass & Mirror LLC

Gibsonia, PA
4.5
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Screen Repair
  • Service icon Energy-Efficient Options
  • Service icon Mirrors
  • Service icon Tempered Glass
  • Service icon Storm/Impact Windows
  • Service icon Glass Showers
  • Service icon Vinyl Frames

Website: http://abcglasspgh.com/
Address: 5149 William Flynn, State Rte, Gibsonia, PA 15044
Phone: (724) 443-3261

Mr. Handyman of Northern Pittsburgh, South Hills, Moon

Pittsburgh, PA
4.8
★★★★★
  • Pros icon Quality workmanship guarantee
  • Pros icon Educational Website
  • Pros icon Full-service installation
  • Pros icon Family-owned and operated
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.mrhandyman.com/northern-pittsburgh/
Address: 1511 Parkway View Dr Building 15, Pittsburgh, PA 15205
Phone: (724) 923-4377

Pittsburgh's Best Remodeling Contractors - Honest Renovators

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

Services Offered

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

Website: http://honestrenovators.com/
Address: 5424 Walnut St 2nd Floor, Pittsburgh, PA 15232
Phone: (412) 212-6534

Universal Windows Direct of Pittsburgh

Pittsburgh, PA
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Exterior remodeling
  • Pros icon Financing options available
  • Pros icon Custom window designs

Services Offered

  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors

Website: https://www.universalwindowsdirect.com/pittsburgh
Address: 611 Parkway View Dr Unit 6, Pittsburgh, PA 15205
Phone: (412) 222-5200

Metropolitan Window Company

Pittsburgh, PA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Financing options available
  • Pros icon High performance
  • Pros icon Variety of styles and materials
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Fiberglass Frames
  • Service icon Wood Frames
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options

Website: https://www.metropolitanwindows.com/
Address: 4672 Clairton Blvd, Pittsburgh, PA 15236
Phone: (412) 655-8411
Shaler Window Cost Calculator

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

Energy-efficient windows can provide benefits in more than one way. Here are some reasons you may want to make the switch:

  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
  • Decrease your carbon footprint: You can reduce your carbon footprint by about 12% after you install Energy Star certified windows. In Shaler, that’s about 286 pounds per year on average.
  • Save money on electricity bills: Switching to energy-efficient windows reduces your energy bills by about 12% because you need less energy.
  • Protect your investment: When your home is on the older side, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its real estate value.

Estimated Cost of Window Replacement in Shaler

When researching window installation, each company provides different services and costs. Let’s go over some average costs and services.

How Much Do New Windows Cost?

The typical cost to replace one window is about $600 but can range from $200 to $1,200. Costs will differ significantly based on the number of windows you need, the quality of your products, the current condition of your home and your location. Many window companies also offer door installations and other add-ons like shutters, baths, coating and more. These extra services will increase overall project costs.

Whether or not you choose energy-efficient windows is another factor that will determine the cost. These will almost always cost more than other windows, but on the other hand, you can save about $313 a year on your energy bills in Shaler.

Costs will also vary based on the material of your frame. Aluminum frames are the least expensive. They’re sturdy, light and easy to maintain, but offer poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They’re also aesthetically pleasing and offer decent insulation for your home.

What Services do Window Installers Offer?

In general, there are two kinds of window replacement services companies offer: full-frame and pocket installations.

Full-frame installations involve replacing the complete window, including the sill, trim and frame. You most likely need a full-frame installation when you want a new style or your window has noticeable rot. These installations are more involved and will raise the overall cost. A pocket installation entails replacing a window without taking out the complete frame, which is usually cheaper than a full-frame installation.

Your window replacement company should be able to help you understand what’s best for your needs. In Shaler, the decision will mostly depend on how old your home is and if there’s any damage. Wood can decay if not properly maintained over the years, so it’s a good idea to have a professional check your frames and window sills.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
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 Shaler

In our hunt to find the most reliable, eco-friendly window installers in Shaler, EcoWatch chose the above companies as the best window installation companies in the city. Along with energy efficiency, we evaluated window companies all across the state and ranked them based on the following methodology:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve the Shaler area so you can find the right window installation company near you.

Work Quality

When picking new windows, the quality and variety of services often plays just as important of a role in insulation and performance as the type of window you get. We do give window installers more points if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

We analyzed patterns in recent customer feedback to find the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it reflects the quality of services across nearly every category, including quality of installation, warranty, cost, quality of parts, professionalism and more.

Cost

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

Warranty

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

Years of Experience

Lastly, we like to see companies that have been in the industry for quite some time. Window installers that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.

Shaler, PA Window Replacement FAQs

What is the typical cost to install windows in a home?

The national average cost of replacing a single window is about $600 but can range from $200 to $1,200, based on a few different factors. The price is often 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 upfront but can save you hundreds of dollars a year in energy bills.

Which kind of window should I get?

Generally, double-pane windows are more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. If you want to be sure you’ll get the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — that means they’re certified energy-efficient by the U.S. Department of Energy.

Do I really need to use a window installation company?

Unless you have experience with home improvement projects and have the tools needed to replace your own windows, we recommend hiring a professional installer. The process of installing windows is quite involved and can take anywhere from four to six hours for a single window. Although it’s tempting to try to do it yourself to save money, hiring a company is a faster, more efficient and much safer alternative.

Should I replace my windows all at once?

If your windows are greater than 20 years old, it’s probably time to replace all of them. At that point, they are usually less efficient, draftier and/or more damaged than new windows. Replacing your windows all at the same time will involve less paperwork and less time.