20 Best Window Companies in Dover, DE (2024 Reviews)
Thinking about upgrading your windows? We’ve got all the information you need in this list of the top window installation companies.
We analyzed all the top-rated window companies in Dover and selected the best 20 based on:
- Customer reviews
- Window installation expertise
- Popularity with home-owners like you
Please enter a valid 5-digit zip code!
Why you can trust EcoWatch
The EcoWatch Reviews team is all about helping Dover homeowners make their homes more eco-friendly. During the summer months, the last thing you want is your cool air to leak out of your drafty windows.
Installing efficient windows on your home can help you save money each month on your energy bills — and you can help the environment as well.
So if you’re constructing a new home, renovating or updating your windows in Dover, you’ve found the best place to get started.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Dover
The EcoWatch team evaluated dozens of window installation companies in Dover to find the top ones for our readers. The installers mentioned in this article passed our review standards for energy-efficient offerings as well as price, local expertise, customer service and beyond.
Window World
- EnergyStar Partner
- Large serice area
- Low prices relative to competitors
- Great industry reputation
- Lifetime warranty
- 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 about 27 years of experience in the industry, and it currently serves 200 locations nationwide.
You may want to consider picking Window World if you're interested in a company that 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 WindowsWindow World caters to eco-conscious consumers by providing energy-efficient window offerings. 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 Dover?Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to get more accurate pricing information.
Renewal by Andersen
- Great industry reputation
- Award-winning company
- Member of US Green Building Council
- Manufactures products in-house
- No lifetime warranty
- More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the industry, and it currently serves nearly every state except Mississippi and West Virginia.
You may want to consider picking Andersen if you're interested in 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 WindowsRenewal by Andersen caters to eco-conscious consumers by providing energy-efficient window offerings. 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 Dover?Andersen does not detail prices 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. Receiving a free quote on its website is the best way to get more accurate pricing information.
Aeroseal Windows
- Many years of experience
- Great industry reputation
- Low number of customer complaints
- Manufactures products in-house
- Custom Designs
- No lifetime warranty
- 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 about 23 years of experience in the industry, and it currently serves 13 states and Washington D.C.
You may want to consider picking Aeroseal if you're interested in a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows caters to eco-conscious consumers by providing 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 Dover?Aeroseal does not detail prices on its website, but it provides high-quality windows at a competitive price point. Receiving a free quote on its website is the best way to get more accurate pricing information.
We have tried to remain unbiased and transparent by describing pros and cons for each installer. Additionally, any partnerships do not influence our rankings.
More Window Companies in Dover
Champion Replacement Windows of Baltimore
Rosedale, MD- Good Customer Service
- Price Transparency
- Free assessment
Services Offered
- Glass Doors
- Window Replacement/Installation
- Bay Windows
- Double-Hung
Window World of Harford
Bel Air, MD- Price Transparency
- Free assessment
- Good Customer Service
- Educational Website
Services Offered
- Glass Doors
- Bay Windows
- Window Replacement/Installation
- Double-Hung
Window Nation
Glen Burnie, MD- Educational Website
- Good Customer Service
- Price Transparency
- Free assessment
Services Offered
- Double-Hung
- Glass Doors
- Triple Pane Glass
- Custom Window Designs
- Vinyl Frames
- Window Replacement/Installation
- Wood Frames
- Energy-Efficient Options
- Bay Windows
Go Glass Corp
Dover, DE- Good Customer Service
- Price Transparency
- Educational Website
- Free assessment
Services Offered
- Glass Showers
- Glass Repair
- Glass Doors
- Mirrors
- Window Repair
- Window Replacement/Installation
Diamond State Glass
Camden, DE- Educational Website
- Price Transparency
- Free assessment
- Good Customer Service
Services Offered
- Window Repair
- Skylights
- Custom Glass
- Energy-Efficient Options
- Window Replacement/Installation
- Glass Doors
- Mirrors
- Tempered Glass
- Glass Repair
- Glass Showers
Sundance Kitchen, Baths & Exteriors
Middletown, DE- Good Customer Service
- Price Transparency
- Free assessment
- Educational Website
Services Offered
- Window Replacement/Installation
Plowman's Windows & Doors Inc.
Millville, NJ- Free assessment
- Price Transparency
- Educational Website
- Good Customer Service
Services Offered
- Window Replacement/Installation
Advance Inc - Roofing Windows Siding Doors & Decks
Newark, DE- Price Transparency
- Free assessment
- Educational Website
- Good Customer Service
Services Offered
- Energy-Efficient Options
- Glass Doors
- Bay Windows
- Vinyl Frames
- Window Replacement/Installation
- Double-Hung
Bay Area Exteriors
Easton, MD- Good Customer Service
- Price Transparency
- Educational Website
- Timely Service
- Free assessment
Services Offered
- Bay Windows
- Window Replacement/Installation
WillPower Windows & Doors LLC.
Franklinville, NJ- Price Transparency
- Good Customer Service
- Free assessment
Services Offered
- Vinyl Frames
- Energy-Efficient Options
- Window Replacement/Installation
- Wood Frames
- Glass Doors
- Double-Hung
Pella Windows & Doors of Rehoboth Beach
Rehoboth Beach, DE- Free assessment
- Educational Website
- Good Customer Service
- Price Transparency
Services Offered
- Double-Hung
- Glass Doors
- Window Replacement/Installation
Ferris Home Improvements
Rehoboth Beach, DE- Free assessment
- Good Customer Service
- Price Transparency
- Educational Website
Services Offered
- Vinyl Frames
- Window Replacement/Installation
Newport Builders Windowland
Newport, DE- Free assessment
- Price Transparency
- Good Customer Service
Services Offered
- Energy-Efficient Options
- Vinyl Frames
- Window Replacement/Installation
- Glass Doors
- Screen Repair
- Storm/Impact Windows
Glass Doctor of Delaware
New Castle, DE- Price Transparency
- Educational Website
- Good Customer Service
Services Offered
- Glass Showers
- Custom Glass
- Energy-Efficient Options
- Window Repair
- Mirrors
- Glass Repair
- Window Replacement/Installation
GT General Contracting
Newfield, NJ- Timely Service
- Price Transparency
- Good Customer Service
- Free assessment
- Educational Website
Services Offered
- Window Replacement/Installation
C.M.D. Home Renewal
Bridgeton, NJ- Price Transparency
- Free assessment
- Educational Website
Services Offered
- Window Replacement/Installation
South Jersey Glass & Door
Wildwood, NJ- Price Transparency
- Educational Website
- Good Customer Service
- Free assessment
Services Offered
- Glass Doors
- Mirrors
- Window Replacement/Installation
- Glass Showers
- Screen Repair
Pella Windows & Doors of Wilmington
Wilmington, DE- Price Transparency
- Educational Website
- Good Customer Service
- Free assessment
Services Offered
- Window Replacement/Installation
- Double-Hung
- Glass Doors
- Bay Windows
J.W. Tull Roofing Contractor
Wilmington, DE- Timely Service
- Free assessment
- Good Customer Service
- Educational Website
- Price Transparency
Services Offered
- Window Replacement/Installation
- Bay Windows
Glass Doctor Home + Business of Mullica Hill
Mantua Township, NJ- Price Transparency
- Educational Website
- Good Customer Service
- Free assessment
Services Offered
- Glass Showers
- Custom Glass
- Window Repair
- Energy-Efficient Options
- Window Replacement/Installation
- Mirrors
- Glass Repair
Calculate how much you can expect to pay for window installation and replacement in Dover, DE using our customized window cost calculator.
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 Dover Saves You Money
Energy-efficient windows can provide benefits in several ways. Here are a few reasons you may want to consider making the switch:
- Decrease your carbon footprint: Decreasing the amount of energy you use also lowers your carbon emissions. You could reduce it by 299 pounds per year on average.
- Save on energy bills: Upgrading to energy-efficient windows lowers your energy bills by about 12% because you need less energy.
- Protect your investment: If you have an older home, your windows are most likely outdated. Upgrading your windows can make your home more comfortable and also help raise the value of your house if you decide to sell.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Dover
Each window installer provides varying services and has different prices depending on a few factors.
How Much Do New Windows Cost?
Typically, Dover homeowners can expect their replacement window installations to range from $250 to $1,200. The average cost is at approximately $600. But costs vary considerably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also provide door replacements, which will add extra costs to your project.
Bear in mind that energy-efficient windows may have a higher price, but Energy Star predicts the upgrade will save you between $101 and $583 per year when you replace single-pane windows and between $27 and $197 per year when replacing double-pane, clear glass windows. Your exact savings will vary based on your local climate, energy rates and individual home characteristics.
We advise getting free quotes from several window installers to find the one that works best for your budget.
What Services do Window Installers Offer?
There are typically two kinds of window replacement services: full-frame and pocket installations.
A full-frame installation replaces the complete window, such as the sill, frame, trim and the window panes. Because this kind of installation is more involved, it will cost more than a pocket installation. Pocket installations (or retrofits) entail replacing a window within its existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any damage or rot, you should opt for a full-frame installation instead.
If you’re hiring a reputable window installation company, your company will be able to advise you on the best type for your project. In Dover, the choice will mostly be based on the efficiency of your home and the condition of your existing frames.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Dover
In our hunt to find the most reliable, eco-friendly window installers in Dover, the EcoWatch Reviews team evaluated dozens of companies before settling on these. Along with energy efficiency, we reviewed window companies all across the state and ranked them based on the following methodology:
Service Area
Because this is a guide for Dover, we paid more attention to companies that serve the city. There are certainly other reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in Dover.
Work Quality
When installing new windows, the quality and variety of services can often play just as important of a role in overall efficiency and performance as the brand of window you get. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don’t have positive things to say about their experience with a certain window installation company, it won’t be featured on EcoWatch.
Cost
This one is a give-and-take: as with other services, cheap window installation companies may not provide the most quality service. On the other hand, 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
As discussed, windows are a considerable investment, so you’ll want to make sure that investment is well protected. Window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Dover’s climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Dover window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Dover, DE Window Replacement FAQs
How much should a window install cost?
The national average cost to install a single window is about $600 but can range between $200 and $1,200, depending on a variety of factors. The price is often dependent on the type and material of the window, the size of the window and the location of your property. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
What are the types of windows?
There are several different kinds of windows you can get for your home, including casement windows, bay windows, double-hung and single-hung windows, awning windows, transom windows, picture windows and slider windows.
What services do window installation companies do?
Window installation professionals travel to your house to remove your old windows and replace them with new ones. Some companies install products made by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is done.
How do you know it’s time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Other than that, if your windows have any damage on them, or they have become difficult to operate, they may be in need of replacement.