25 Best Window Replacement Companies in Thurmont, MD (2023 Reviews)
Window Companies Near Me

When the time comes to replace your windows, our guide to the best window installation companies can help you find the right provider for you.

We analyzed all the top window installers in Thurmont and selected the top 25 based on:

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

By EcoWatch Local Advisors

Updated March 14, 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.

The EcoWatch team is all about helping Thurmont homeowners find eco-conscious solutions for their homes. Damaged or outdated windows can cost you in power bills. As a matter of fact, the Department of Energy estimates that about 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 extreme temperatures, but also saving you some money and helping the environment.

So if you're constructing a new home, renovating or changing out old windows in Thurmont, this guide is the best place to get started.

Best Affordability

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Large serice area
  • Low prices relative to competitors
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Great industry reputation
  • Manufactures products in-house
  • More expensive than competition

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Low number of customer complaints
  • Great industry reputation
  • Manufactures products in-house
  • No lifetime warranty

Best Window Replacement Companies in Thurmont

The EcoWatch Reviews team evaluated dozens of installers in Thurmont to find the top window installation companies for our readers. We assessed the installers on energy-efficient offerings, price, customer service, local experience, coverage area 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
Cons:
  • Pros icon Quality of service will depend on your area

Window World offers windows expertise in Thurmont. This provider has 27 years of experience in the windows business, and it has become one of the best companies in Thurmont. Its reputation is backed by all the positive reviews on customer 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

There are a wide variety of window types available from Window World, 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 Thurmont?

Window World does not detail prices on its 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 receive 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 Award-winning company
  • Pros icon Great industry reputation
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon More expensive than competition

Renewal by Andersen offers the best availability in Thurmont. 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 business, and it has become one of the most respected companies in Thurmont. The provider has hundreds of glowing reviews from customers on online review websites.

Andersen may be the company for you if you want one 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 Windows

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. Not all of Andersen's offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Thurmont?

Andersen doesn't have any prices displayed 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. For more accurate information on the cost, you can ask for 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 Low number of customer complaints
  • Pros icon Great industry reputation
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty

Aeroseal Windows has the best window installation for businesses in Thurmont. Aeroseal has over 23 years of experience in the industry, and it currently serves 13 states and Washington D.C.

You may want to consider opting for Aeroseal if you're looking for a installer that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

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. Not all of Aeroseal's windows are Energy Star certified, so be sure to mention that you'd like Energy Star windows when inquiring.

How much does Aeroseal Windows cost in Thurmont?

Aeroseal does not outline prices on its website, but it provides high-quality windows at a competitive price point. You can request a free quote on its website for more information about pricing.

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. Window Nation has been in the window industry for about 16 years. The provider has a lot of glowing 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, Window Nation may be the right provider for you.

Energy Efficiency of Window Nation Windows

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. Not all of Window Nation's offerings are Energy Star certified, so make sure you mention that you'd like Energy Star windows when inquiring.

How much does Window Nation cost in Thurmont?

Window Nation does not detail prices 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. Getting a free quote on its website is the best way to know for sure.

We try to remain unbiased and transparent by describing pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.

More Window Replacement Companies in Thurmont

Care Contracting

Leesburg, VA
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.carecontracting.com/
Address: 14908 Ingalls Ct, Leesburg, VA 20176
Phone: (703) 569-0020

S&K Roofing, Siding and Windows

Eldersburg, MD
3.9
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.google.com/aclk
Address: Eldersburg, MD
Phone: (888) 368-0561

Mr. Handyman of Greater Frederick and Hagerstown

Frederick, MD
3.9
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Locally Recognized for Quality
  • Pros icon No-fee Quotes
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.mrhandyman.com/greater-frederick-hagerstown/
Address: 5836 Urbana Pike Suite A, Frederick, MD 21704
Phone: (301) 259-3469

Glass & Mirror Services, Inc.

Frederick, MD
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free Quotes
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Stained Glass

Website: http://www.glassandmirrorservices.com/
Address: 5740 Industry Ln, Frederick, MD 21704
Phone: (301) 662-0026

American Home Contractors

Hanover, PA
3.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Locally Recognized for Quality

Services Offered

  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows

Website: http://www.americanhomecontractors.com/
Address: 1225 Carlisle St, Hanover, PA 17331
Phone: (717) 546-7663

S&K Roofing, Siding and Windows

Eldersburg, MD
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Locally Recognized for Quality
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Commercial Windows

Website: https://www.skroofing.com/
Address: 5399 Enterprise St, Eldersburg, MD 21784
Phone: (888) 206-0047

Diligent Roofing & Siding

Mt Airy, MD
3.4
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://diligentexteriorremodeling.com/
Address: 6336 Davis Rd, Mt Airy, MD 21771
Phone: (301) 720-1909

The Neikirk Company LLC

Hagerstown, MD
3.4
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Award-Winning
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.neikirkco.com/
Address: 17143 Virginia Ave, Hagerstown, MD 21740
Phone: (240) 366-8341

Window World of Frederick County

Frederick, MD
3.3
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • Pros icon Gives to charity
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Windows
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.windowworldfrederickmd.com/
Address: 8420 Gas House Pike Suite T, Frederick, MD 21701
Phone: (301) 663-0699

Absolute Home Solutions, Inc.

Middletown, MD
3.3
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Dependable Service
  • Pros icon Good Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: https://www.ahsiroofingandwindows.com/
Address: 201 Tobias Run, Middletown, MD 21769
Phone: (240) 328-9872

Potomac View Energy

Sykesville, MD
3.3
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Arrives on Time

Services Offered

  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://potomacviewenergy.com/
Address: 7520 W Main St Suite 201, Sykesville, MD 21784
Phone: (443) 881-8538

American Awnings and Replacement Windows

Shippensburg, PA
3.3
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Arrives on Time
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Architectural Glass
  • Service icon Double-Hung

Website: https://www.american-awnings.com/
Address: 145 Park Pl E, Shippensburg, PA 17257
Phone: (717) 532-9098

ARCH Exteriors LLC

Ijamsville, MD
3.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Award-Winning
  • Pros icon Reliable Service
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Window Designs

Website: http://archdesignbuildllc.com/
Address: 10075 Tyler Ct suite 7, Ijamsville, MD 21754
Phone: (877) 214-2831

Capital Remodeling, Inc.

Gaithersburg, MD
3.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free Quotes
  • Pros icon Consistent Workmanship
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: http://www.capitalremodeling.com/
Address: Gaithersburg, MD
Phone: (800) 310-7154

Robert G. Miller

Hanover, PA
3.2
★★★★★
  • Pros icon Dependable Service
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Custom Window Designs
  • Service icon Fast Delivery
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung

Website: http://rgmillerinc.com/
Address: 509 W Elm Ave, Hanover, PA 17331
Phone: (717) 637-7910

Tnt Service Group Inc

Frederick, MD
3.2
★★★★★
  • Pros icon Dependable Service
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows

Website: https://www.tntservicesgroup.com/
Address: 3958 Dartmouth Ct # A, Frederick, MD 21703
Phone: (301) 874-8400

Pella Windows & Doors of Gaithersburg

Gaithersburg, MD
3.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Architectural Glass
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.pellabranch.com/washington-dc/showrooms/gaithersburg
Address: 202 Perry Pkwy Suite 6, Gaithersburg, MD 20877
Phone: (202) 810-6722

Kline Awning & Window

Boonsboro, MD
3.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://klineawningandwindow.com/
Address: 308 N Main St, Boonsboro, MD 21713
Phone: (301) 432-6781

MDVA Windows

Clarksburg, MD
3.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Business Windows

Website: http://www.mdvawindows.com/
Address: 12828 Clarksburg Square Rd UNIT 304, Clarksburg, MD 20871
Phone: (202) 820-4850

Arocon Roofing and Construction

Westminster, MD
3.0
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Locally Recognized for Quality

Services Offered

  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.aroconllc.com/
Address: 101 R John St, Westminster, MD 21157
Phone: (410) 861-6767

Eastern Exteriors, LLC

Ijamsville, MD
2.9
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Reliable Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows

Website: https://www.easternext.com/
Address: 2502 Urbana Pike, Ijamsville, MD 21754
Phone: (301) 520-1882

Mackey's Glass Service

Philadelphia Ave, PA
2.9
★★★★★
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Free Quotes

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: https://mackeys-glass-service.business.site/
Address: 1912-D, Philadelphia Ave, Chambersburg, PA 17201
Phone: (717) 262-2268

EXTERIORMAX

Clarksburg, MD
2.9
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Consistent Workmanship
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Energy-Efficient Options
  • Service icon Full-Service Installations
  • Service icon Business Windows

Website: http://www.exteriormax.com/
Address: 23510 Public House Rd, Clarksburg, MD 20871
Phone: (301) 750-3899

Bealing Roofing and Exteriors, Inc.

Hanover, PA
2.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: https://bealingroofing.com/
Address: 440 Black Rock Rd, Hanover, PA 17331
Phone: (717) 634-3355

Maryland Windows Doors Roofs

Frederick, MD
2.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://marylandwindowsdoorsroofs.com/
Address: 23 W All Saints St, Frederick, MD 21701
Phone: (301) 712-5228

How Installing Energy-Efficient Windows in Thurmont Saves You Money

There are several perks of upgrading to energy-efficient windows. Some reasons you may want to consider making the change are the following:

  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
  • Save on electricity bills: Installing energy-efficient windows reduces your energy bills by about 12% since you use less energy.
  • Reduce your carbon footprint: In Thurmont, you can lower your indirect greenhouse gas emissions by about 405 pounds per year after you upgrade to energy-efficient windows.
  • Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, particularly if your home is on the older side.

Estimated Cost of Window Replacement in Thurmont

Windows come in all shapes and sizes, so costs and services will differ tremendously. Here are the typical costs and the primary services that you can find from window installation companies.

How Much Do New Windows Cost?

According to our market research, the average cost of installing a single window is about $600. However, window installation costs can range from $200 to $1,200 per window. But costs will differ significantly depending on the number of windows you need, your location, the quality of your products and the current condition of your home. Many window companies also offer replacement door installations and other add-ons like baths, shutters, coating and more. These extra services will increase overall project costs.

Whether or not you want to install 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 $294 a year on your energy bills in Thurmont.

We recommend requesting free quotes from multiple window installers to find the right windows and the company that works best for you.

What Services do Window Installers Offer?

There are typically two types of window replacement services: full-frame and pocket installations.

A full-frame installation is a replacement of the total window. It involves taking out the old window, the sill, and the exterior and interior trim. It can also involve extra materials, such as insulation and drip edges, which increase the total cost of the project. It's also worth noting that you may have to touch up the paint around the window after a full-frame installation. A pocket installation entails installing a new window within the old frame. This means instead of tearing out the whole window and rebuilding it, the window installer will just slide the replacement window (also called a retrofit or insert window) into the frame.

If you're still debating which type of installation to get, you can talk to your provider and get their recommendation. The choice mostly depends on how old the frames are and if there's any damage.

Best Affordability

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Large serice area
  • Low prices relative to competitors
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Great industry reputation
  • Manufactures products in-house
  • More expensive than competition

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Low number of customer complaints
  • Great industry reputation
  • Manufactures products in-house
  • No lifetime warranty

How We Choose the Best Window Installers in Thurmont

In our search to find the most reliable, eco-friendly window installers in Thurmont, the EcoWatch team chose the above companies as the best window installation companies in the city. Along with energy efficiency, we analyzed window companies all across the state and assigned rankings based on the following methodology:

Service Area

Since this is a guide for Thurmont, we gave more points to companies that serve the city. There are certainly other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in Thurmont.

Work Quality

We're certain that you're looking for a company to do a great job installing windows. We've vetted each company included on this list to ensure its technicians are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet very important review factor is customer feedback. If most customers don't have nice things to say about their service from a certain company, it won't be featured on EcoWatch.

Cost

Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.

Warranty

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

Years of Experience

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

Thurmont, MD Window Replacement FAQs

What is the typical cost to replace windows?

The typical cost of replacing a single window can range from $450 to $650. There are many factors that influence the price, including styles and sizes of windows, your property's location, the number of windows, how energy-efficient the windows are, local labor costs and the materials used in designing the windows.

What are the most common types of replacement windows?

There are several different types of windows you can get for your house, such as double-hung and single-hung windows, picture windows, bay windows, casement windows, transom windows, slider windows and awning windows.

Can you replace your own windows?

If you're handy and know how to replace a window, you may be able to install your own windows. But if you don't have the time or know-how, we recommend getting a professional to do it for you.

When is the best time of year to replace windows?

Replacement windows can be installed during any season, but autumn might be best. Regardless of when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into your house, so the temperature outside doesn't necessarily matter that much. What's most important is that the weather should be dry.

Should I replace all my windows at the same time?

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

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