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Best Window Replacement Companies in Dover, NH

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  5. Dover
Written By Max Peterson|Last Updated: April 18, 2024

Replacement windows can defend your home from drafts and moisture problems, boost its energy efficiency, and give it some extra charm. A skilled window replacement company can help you make the most of your new windows, so you can make them work for you.

Top Pick
4.7
  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience
Most Customizable
4.3
  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience
Best Window Selection
4.3
  • Free Quotes
  • 2022 J.D. Power award winner
  • Materials sourced within the U.S.

Top 10 Dover Window Installation Companies

By choosing one of these top companies for window replacement in Dover, you'll reap the benefits of new windows in no time.

Dover residents can trust the This Old House Reviews Team to provide authoritative, current window installer recommendations. To determine the best providers, we consider these five traits:

  • Services and warranties
  • Energy-efficiency guarantees
  • Customer reviews and recommendations
  • Product quality
  • Professional experience and licensure
Window World of New Hampshire Logo

Window World of New Hampshire

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4.4/5
Based on 96 customer reviews.

Services Offered

Window Replacement/installationDouble-HungBay WindowsGlass Doors

Highlights

  • Price transparency
  • Good customer service
  • Educational website
735 E Industrial Park Dr Unit A, Manchester, NH 603-935-9878 windowworldnewhampshire.com
DaBella Logo

DaBella

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4.6/5
Based on 126 customer reviews.

Services Offered

Double-HungVinyl FramesWindow Replacement/installationGlass Doors

Highlights

  • Good customer service
  • Timely service
13 Red Roof Ln Suite 201, Salem, NH 603-691-2339 dabella.us
Great Bay Roofing & Exteriors Logo

Great Bay Roofing & Exteriors

4.7/5
Based on 20 customer reviews.

Services Offered

Bay WindowsWindow Replacement/installationSkylights

Highlights

  • Price transparency
  • Good customer service
  • Free assessment
12 N Main St, Rochester, NH 603-748-7254 greatbayroofing.com
Glass Routes Co Logo

Glass Routes Co

4.6/5
Based on 61 customer reviews.

Services Offered

Vinyl FramesMirrorsCustom GlassGlass ShowersWindow Replacement/installation

Highlights

  • Free assessment
  • Price transparency
  • Educational website
181 Littleworth Rd, Madbury, NH 603-742-2600 glassroutes.net
Portland Glass of Dover Logo

Portland Glass of Dover

4.5/5
Based on 106 customer reviews.

Services Offered

Energy-Efficient OptionsGlass RepairWindow Replacement/installation

Highlights

  • Price transparency
  • Good customer service
  • Educational website
119 New Rochester Rd, Dover, NH 603-716-9167 portlandglass.com
Pella Windows & Doors of Newington Logo

Pella Windows & Doors of Newington

4.5/5
Based on 154 customer reviews.

Services Offered

Bay WindowsDouble-HungWood FramesWindow Replacement/installationGlass DoorsVinyl Frames

Highlights

  • Price transparency
  • Educational website
  • Free assessment
25 Fox Run Rd Suite 2, Newington, NH 603-725-4690 pellabranch.com
Southers Construction Logo

Southers Construction

4.4/5
Based on 130 customer reviews.

Services Offered

Double-HungWindow Replacement/installationBay Windows

Highlights

  • Timely service
  • Educational website
  • Free assessment
12 Crosby Rd, Dover, NH 603-734-4572 southersconstruction.com
Interstate Glass & Mirror Inc Logo

Interstate Glass & Mirror

4.4/5
Based on 47 customer reviews.

Services Offered

MirrorsScreen RepairGlass DoorsBay WindowsGlass ShowersWindow Replacement/installation

Highlights

  • Price transparency
228 Nh-108, Somersworth, NH 603-742-0600 interstateglass.com
Clearview Sunroom & Window LLC Logo

Clearview Sunroom & Window

4.4/5
Based on 51 customer reviews.

Services Offered

Window Replacement/installation

Highlights

  • Educational website
  • Good customer service
  • Free assessment
1037 Calef Hwy, Barrington, NH 603-750-7577 clearviewsunroom.com

More Local Window Companies

Granite State Glass

User Reviews: 4.2/5 

1 Mirona Rd
Portsmouth, NH 03801

Portland Glass of Portsmouth

User Reviews: 4.4/5 

70 Heritage Ave
Portsmouth, NH 03801

Broken Glass Company

User Reviews: 4.4/5 

223 Post Rd
Wells, ME 04090

Norton Exteriors

User Reviews: 4.2/5 

252 Calef Hwy
Epping, NH 03042

Glass Unlimited

User Reviews: 4.2/5 

1213 Post Rd
Wells, ME 04090

The Window Source NH

User Reviews: 4.5/5 

779 Lafayette Rd Suite 1
Seabrook, NH 03874

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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Facts about Dover
Annual Energy Efficient Windows Savings:$459
Average Max Temp:54°F
Average Min Temp:40°F
Average Daily Sunlight:51%
Average Annual Snowfall:57.5"
Average Monthly Precipitation:4.07"

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

How To Choose a Window Company in Dover

It's crucial to find a window replacement company that matches your individual values, needs, and preferences. Consider the following points during your hunt:

Window Cost by Type

Replacing your windows is a substantial expense, so balancing cost with value is crucial. Choosing economy windows could actually raise your overall cost, since they come with a reduced lifespan and more intensive maintenance needs. The age of your home, in addition to the sizes, materials, and styles of windows you select, can impact pricing. Simple double-hung windows deliver great value with their straightforward style and simple mechanisms, while new skylights cost more to prepare for and install. A professional can help you with selecting the products that fit your needs.

To help you form a rough estimate, this table shows the typical cost of the most common residential window types.

Window TypesAverage Cost
Arched$227-$1398
Awning$329-$918
Bay$759-$5634
Custom$338-$939
Casement$262-$1523
Double-hung$122-$793
Egress$225-$562
Glass Block$45-$570
Picture$197-$1460
Single-hung$89-$1502
Skylight$112-$1356
Sliding$258-$1314
Storm$53-$371
Transom$275-$576

Window Material Cost

Replacement window prices also vary based on material. Each option provides different benefits depending on the local climate and energy-saving goals. Vinyl and fiberglass are readily-available materials, so they tend to cost less. Likewise, aluminum and composites look sleek and stay strong against the elements, so they tend to cost more.

Window TypesAverage Cost
Aluminum$53-$1502
Composite$542-$1218
Fiberglass$89-$759
Vinyl$182-$1690
Wood$271-$1523

Other Window Replacement Costs

Your contractor will factor the price for your windows and the value of their services into its total estimate. Make sure to factor in the cost of installation, guarantees, and any other supplemental fees that your project may need.

Experience and Training

Examine a company's website and chat with a representative to learn more about its product and service offerings, pricing, and warranties. Many window companies also keep online galleries that exhibit past projects.

Ensure that the company focuses on window replacement. The more specialized training its staff has, and the longer it has been in operation, the more likely it will provide excellent service.

Licensing and Credentials

In New Hampshire, cities and counties can create their own licenses, permits, and guidelines for service providers, including window installation companies. We strongly recommend consulting your municipal office to see what's required of contractors in your area. You can also browse each company's website to check for private accreditations and professional memberships. The two most well-known certificates come from the AWDI and Fenestration and Glazing Industry Alliance.

Types of Windows Offered

No two businesses offer the same window styles and materials. Find one that specializes in the type you want for your home.

Finally, pay close attention to the materials that an installer uses. Each window frame material has a different energy efficiency level, price point and life span. A company will usually specify whether the windows they set up use vinyl, metal, wood, fiberglass, or composite.

Customer Feedback

Perhaps the best way to screen window companies for your job is to check what previous customers have said about them. Trustworthy sources for customer reviews include Trustpilot, Yelp, and Google Speak with people you know who have used a company you're interested in, and ask a representative for a copy of its reference list.


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Frequently Asked Questions About Window Replacement in Dover

What are the benefits of hiring a window installer?

Window replacement is an important purchase that greatly impacts your home's livability and energy performance. Hiring a professional window company to oversee your project ensures your windows will be the right size, perform optimally, and be properly sealed. Companies also typically include a warranty that takes care of required maintenance and most needed fixes.

How can I fix a rotting or molding window frame?

A window frame with mold indicates a moisture issue. You likely won't have to replace the entire window. Instead, a simple framing job could do. It's advisable to consult a window professional to ensure a sufficiently tight seal.

Will my window company install blinds?

Whether a company installs blinds ultimately depends on your state's licensing requirements and their own preferences. Many jurisdictions require window covering installers to get a unique license, and not every installer will carry one. If you'd like blinds with your new windows, ask a company representative if its crews can handle the measuring, cutting, and mounting. If a company can't install blinds, they could recommend another company or subcontract the work.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

More Window Resources

National Windows Company Ranking Methodology

Sources

Energy Star