27 Best Window Replacement Companies in Brentwood, NH (Mar 2023)
Window Companies Near Me

Are you looking to upgrade your windows? Our list of the best window installation companies can help you choose the right one for you.

We analyzed all the top window installers in Brentwood and selected the top 27 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.

Although environmentally friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your home's energy efficiency can also have a large impact on home energy conservation. If your windows are made of traditional materials, or are outdated or damaged, you could be sending 25-30% of your home's heat or cool air right out of them.

Luckily, saving you money with efficient windows also aligns with our goals of conserving energy and the resources it takes to produce it.

Unlike other sites, EcoWatch ranks window replacement companies based on energy efficiency while also balancing cost, customer satisfaction and service area.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Member of US Green Building Council
  • Great industry reputation
  • No lifetime warranty

Best Affordability

Window World

★★★★★
4.5

  • Low prices relative to competitors
  • Great industry reputation
  • Large serice area
  • Quality of service will depend on your area

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Great industry reputation
  • Custom Designs
  • Manufactures products in-house
  • Not ideal for residential installations

Best Window Replacement Companies in Brentwood

The EcoWatch Reviews team researched several installers in Brentwood to find the top ones for our readers. We assessed the providers on their energy-efficient offerings, local experience, coverage area, price, customer service and more.

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 Member of US Green Building Council
  • Pros icon Great industry reputation
Cons:
  • Pros icon No lifetime warranty

Renewal by Andersen is 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 most respected companies in the business. Hundreds of positive reviews from customers online back the company's reputation.

It has established itself as a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 Brentwood?

Though prices are not available on Andersen's website, 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 get a free quote from the company.

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

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Large serice area
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. Window World has been in the window installation industry for around 27 years. Its reputation is backed by hundreds of positive reviews from customers online.

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 offering 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 ask your Window World representative when inquiring about services.

How much does Window World cost in Brentwood?

While prices are not readily available on Window World's website, 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.

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 Great industry reputation
  • Pros icon Custom Designs
  • Pros icon Manufactures products in-house
Cons:
  • 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. Aeroseal has around 23 years of experience in the industry, and it currently provides services to 13 states and Washington D.C.

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' commitment to sustainability can be seen in its energy-efficient window offerings. 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 Brentwood?

Prices are not available on Aeroseal's website since the cost of window replacement depends on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. You can inquire about a free quote on its website for more information about the cost.

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 offers the best warranty in Brentwood. Universal has been in the window industry for around 20 years. Hundreds of positive reviews from customers online back the company's reputation.

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

There are a wide range of window types available from Universal Windows Direct, some of which are Energy Star products. 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 Brentwood?

Universal doesn't have any pricing information displayed on its 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. For more detailed information on the cost, you can receive a quote from the company.

We strive to stay unbiased and transparent by mentioning pros and cons for every company. Additionally, any partnerships do not influence our reviews.

More Window Replacement Companies in Brentwood

Coastal Windows & Exteriors

Beverly, MA
4.8
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon Consistent Workmanship
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Sliding Glass

Website: https://mycoastalwindows.com/
Address: 236 Cabot St, Beverly, MA 01915
Phone: (978) 861-3019

Merrimack Valley Glass & Mirror

Newburyport, MA
4.3
★★★★★
  • Pros icon Arrives on Time
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing

Services Offered

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

Website: https://www.merrimackvalleyglass.com/
Address: 5 Perry Way #7, Newburyport, MA 01950
Phone: (978) 463-9990

NEWPRO

Woburn, MA
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Award-Winning

Services Offered

  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.newpro.com/contact-us/woburn/
Address: 26 Cedar St, Woburn, MA 01801
Phone: (781) 933-4100

Nashua Glass

Nashua, NH
4.1
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Award-Winning
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.nashuaglass.com/
Address: 110 Chestnut St, Nashua, NH 03060
Phone: (603) 882-0648

Northern Glass LLC

Ipswich, MA
4.1
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://northern-glass.com/
Address: 29 Hayward St, Ipswich, MA 01938
Phone: (978) 356-7942

The Window Source NH

Seabrook, NH
4.0
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Dependable Service
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.windowsourcenh.com/
Address: 779 Lafayette Rd Suite 1, Seabrook, NH 03874
Phone: (888) 282-2912

Glass Unlimited

Wells, ME
3.9
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Timely Service
  • Pros icon Reliable Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.glassunlimitedme.com/
Address: 1213 Post Rd, Wells, ME 04090
Phone: (207) 646-8268

Window World of Boston

Woburn, MA
3.9
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Consistent Workmanship
  • Pros icon Excellent Customer Service
  • Pros icon Award-Winning

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.windowworldofboston.com/
Address: 15 A Cummings Park Dr, Woburn, MA 01801
Phone: (781) 202-6460

Timberlane Glass and Mirror

Plaistow, NH
3.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes

Services Offered

  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Commercial Windows

Website: http://www.timberlaneglass.com/
Address: 108 Main St, Plaistow, NH 03865
Phone: (603) 382-6969

Southers Construction

Dover, NH
3.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Award-Winning
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Window Designs

Website: http://southersconstruction.com/
Address: 12 Crosby Rd, Dover, NH 03820
Phone: (603) 605-8037

Weaver Glass LLC

Beverly, MA
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.weaverglassllc.com/
Address: 393 Rantoul St, Beverly, MA 01915
Phone: (978) 922-5511

Rite Window

Woburn, MA
3.6
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Consistent Workmanship
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://ritewindow.com/
Address: 7 Roessler Rd, Woburn, MA 01801
Phone: (781) 491-0419

Pro Entry Installs LLC

Salem, NH
3.6
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Reliable Appointment Windows
  • Pros icon Consistent Workmanship
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: https://proentry.com/
Address: 7 Cassidy Ave #2863, Salem, NH 03079
Phone: (603) 765-1312

Window World of New Hampshire

Manchester, NH
3.6
★★★★★
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Gives to charity

Services Offered

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

Website: https://www.windowworldnewhampshire.com/
Address: 735 E Industrial Park Dr Unit A, Manchester, NH 03109
Phone: (603) 935-9878

A&A Services Home Improvement

Salem, MA
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Windows
  • Service icon Fast Delivery
  • Service icon Architectural Glass
  • Service icon Double-Hung

Website: https://www.a-aservices.com/
Address: 115 North St, Salem, MA 01970
Phone: (978) 354-7579

Guaranteed Aluminum & Vinyl Inc

Lowell, MA
3.3
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Reliable Service
  • Pros icon Price Transparency
  • Pros icon Free Quotes

Services Offered

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

Website: https://lowell-window-replacement-glass-repair.com/
Address: 349 Bridge St, Lowell, MA 01850
Phone: (978) 452-2392

Demers Plate Glass Co

Haverhill, MA
3.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service

Services Offered

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

Website: https://www.demersplateglass.com/
Address: 373 River St, Haverhill, MA 01832
Phone: (978) 374-6387

Pella Windows & Doors of Woburn

Woburn, MA
3.3
★★★★★
  • Pros icon Award-Winning
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes

Services Offered

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

Website: https://www.pellabranch.com/boston/showrooms/woburn/
Address: 59 Commerce Way, Woburn, MA 01801
Phone: (781) 935-4947

Clear Choice Home Improvements

Manchester, NH
3.3
★★★★★
  • Pros icon Dependable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Timely Service
  • Pros icon No-fee Quotes

Services Offered

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

Website: http://www.clearchoicehomeimprovement.com/
Address: 8025 S Willow St #107, Manchester, NH 03103
Phone: (603) 232-0237

Milford Windows & Siding

Milford, NH
3.3
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Dependable Service
  • Pros icon Reliable Appointment Windows
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows

Website: https://123siding.com/
Address: 69 Woodhawk Dr, Milford, NH 03055
Phone: (603) 213-1157

Queen City Glass & Mirror

Manchester, NH
3.2
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://qcglass.com/
Address: 295 Elm St, Manchester, NH 03101
Phone: (603) 666-0302

Pane Free Glass

Manchester, NH
3.2
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes
  • Pros icon No-Hassle Pricing

Services Offered

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

Website: http://panefreeglass.com/
Address: 270 Amory St #17, Manchester, NH 03102
Phone: (603) 497-1830

Blind Gallery New England

Stratham, NH
3.2
★★★★★
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass

Website: http://www.blindgallerynewengland.com/
Address: 72 Portsmouth Ave, Stratham, NH 03885
Phone: (978) 857-1617

Alton Bay Blinds of New England

Hampton, NH
3.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • Pros icon Award-Winning

Services Offered

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

Website: https://www.abblinds.com/
Address: 387 Lafayette Rd, Hampton, NH 03842
Phone: (603) 965-2114

Atlantic Window Warehouse

Newburyport, MA
3.2
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency
  • Pros icon Reliable Appointment Windows
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.atlwindow.com/
Address: 155 State St, Newburyport, MA 01950
Phone: (978) 465-9696

City Mirror & Glass Co

Lowell, MA
3.1
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: http://www.citymirror.net/
Address: 90 Lincoln St, Lowell, MA 01851
Phone: (978) 452-5976

Methuen Glass 2

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

Services Offered

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

Website: http://www.methuenglass.com/
Address: 468 Merrimack St, Methuen, MA 01844
Phone: (978) 682-8233

How Installing Energy-Efficient Windows in Brentwood Saves You Money

By switching to energy-efficient windows, you and your family can take advantage of several benefits, including:

  • Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less because of their ability to filter out harmful UV rays.
  • Protect your investment: If your home is on the older side, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help raise the value of your house if you decide to sell.
  • Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your carbon emissions. You could reduce it by 152 pounds per year on average.
  • Save on power bills: Since energy-efficient windows lower the amount of energy needed to heat or cool your home, they can help you save around $435 annually on your energy bills in Brentwood.

Estimated Cost of Window Replacement in Brentwood

When looking into window installation, each company provides varying services and costs. Let's look at some typical costs and services.

How Much Do New Windows Cost?

Typically, Brentwood homeowners can expect their window installations to range from $250 to $1,200. The average cost is at about $600. How much it will cost you depends on several factors, including the location of your home, type, number of windows, size, material and more.

With windows, efficiency is the most important factor for many homeowners. High efficiency windows may cost more off the bat, but by increasing the efficiency of your home — particularly during the winter — they can give you many years of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Brentwood homeowners $435+ a year after replacing single-pane windows.

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

What Services do Window Installers Offer?

Generally, there are two types of window replacement services companies offer: full-frame and pocket installations.

Full-frame installations involve replacing the whole window — the sill, frame, trim and all. These are typically done when you want to change the style of your window or when it has a great amount of deterioration. Full-frame installations are more time-consuming and will increase overall costs. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are on the simpler end and will be less expensive, but you can't do this type of installment if you have any pre-existing rot or water damage.

If you're not sure which kind of window installation service you need, your installer should be able to help you out. Typically, the choice is influenced by factors such as the age and condition of the home, the type of building material, budget and time restrictions.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Member of US Green Building Council
  • Great industry reputation
  • No lifetime warranty

Best Affordability

Window World

★★★★★
4.5

  • Low prices relative to competitors
  • Great industry reputation
  • Large serice area
  • Quality of service will depend on your area

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Great industry reputation
  • Custom Designs
  • Manufactures products in-house
  • Not ideal for residential installations

How We Choose the Best Window Installers in Brentwood

The EcoWatch Reviews team differs from most reviewers, as we're examining these companies through a sustainability lens. We have reviewed the best window installation companies in Brentwood mainly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows can reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

This one is pretty self-explanatory, but we've chosen to highlight window installers that serve a wide variety of states and cities so you can find the right window installation company near you.

Work Quality

When installing new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the type of window you get. We do give window installers higher marks if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

Customer feedback is another super important review factor. If most customers don't have positive feedback about their service from a certain installer, you won't see it featured on EcoWatch.

Cost

This one is a give-and-take: similar to other services, cheap window installers won't always provide the most quality service. Still, we want to make sure we're highlighting companies that provide a wide range of price and financing options so they're accessible to most homeowners.

Warranty

Protecting your investment in new windows is important. For that reason, window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have been in the industry for a while. Window installation companies that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.

Brentwood, NH Window Replacement FAQs

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

The average cost of replacing a single window can range from $450 to $650. There are several factors that affect how much it costs, which include the number of windows, styles and sizes of windows, the materials used in designing the windows, your property's location, how energy-efficient the windows are and local labor costs.

What are the types of windows?

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

Can I replace my own windows?

Even though you can install your own windows, doing so is time-consuming and requires a lot of experience with home improvement projects. Hiring a professional can help ensure that the job is done properly and that you won't have to spend the time and effort to do it yourself.

How long does window installation take?

Since a window takes about 30 minutes to install, around 16 windows can be installed in an 8-hour work day.

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 your windows together is the only way to see a noticeable difference. However, if you have just a few windows that are damaged or leaky, you can replace just those.

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