Expert Advice On Improving Your Home

10 Best Window Replacement Companies in Portsmouth, NH

Get matched with a top local pro.
Join more than 640 people who have gotten a free quote in the past week.

Written By David Cusick

Last Updated April 2024

Whether you want to increase your home's value, energy efficiency, or both, replacing your windows is an excellent idea. In Portsmouth, you could save around $435 a year on your electric bills by replacing your windows. Potential leaks or drafts can decrease your home’s energy efficiency by up to 30%, according to the Department of Energy. Our list of the best window installers in Portsmouth will help you select the right installer for you.

Our Recommended Providers

Top Pick
4.9/5
  • Great quality
  • Free assesment
  • Timely Service
Best Customer Service
4.3/5
  • Great customer service
  • Transparent pricing
  • Award winning company
Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty

Top 10 Best Window Replacement Companies in Portsmouth

Renewal by Andersen Window Replacement

Renewal by Andersen Window Replacement Logo

Our Rating

User Rating

Write a Review
66 Industrial Park Rd, Saco, ME 04072 (207) 358-6094 windowsdoorsportland.com

Educational website

Free assessment

Good customer service

Price transparency

Services Offered

Double-hung
Window replacement/installation
Glass doors
Energy-efficient options
Metal frames
Bay windows
Custom window designs
Vinyl frames

Window World of Boston

Window World of Boston Logo

Our Rating

User Rating

Write a Review
231 Neck Rd Suite 7, Haverhill, MA 01835 (508) 519-3337 windowworldofboston.com

Timely service

Free assessment

Good customer service

Educational website

Price transparency

Services Offered

Bay windows
Double-hung
Window replacement/installation
Energy-efficient options
Glass doors

DaBella

DaBella Logo

Our Rating

User Rating

Write a Review
13 Red Roof Ln Suite 201, Salem, NH 03079 (603) 691-2339 dabella.us

Good customer service

Timely service

Services Offered

Vinyl frames
Window replacement/installation
Double-hung
Glass doors

Pella Windows & Doors of Newington

Pella Windows & Doors of Newington Logo

Our Rating

User Rating

Write a Review
25 Fox Run Rd Suite 2, Newington, NH 03801 (603) 725-4690 pellabranch.com

Educational website

Price transparency

Free assessment

Good customer service

Services Offered

Wood frames
Vinyl frames
Bay windows
Double-hung
Glass doors
Window replacement/installation

Portland Glass of Portsmouth

Portland Glass of Portsmouth Logo

Our Rating

User Rating

Write a Review
70 Heritage Ave, Portsmouth, NH 03801 (603) 945-2324 portlandglass.com

Price transparency

Free assessment

Good customer service

Educational website

Services Offered

Glass repair
Glass showers
Window replacement/installation

Southers Construction

Southers Construction Logo

Our Rating

User Rating

Write a Review
12 Crosby Rd, Dover, NH 03820 (603) 734-4572 southersconstruction.com

Price transparency

Timely service

Good customer service

Educational website

Free assessment

Services Offered

Window replacement/installation
Double-hung
Bay windows

Dover Roofing LLC

Dover Roofing LLC Logo

Our Rating

User Rating

Write a Review
120 Durham Rd, Dover, NH 03820 (603) 498-5741 doverroofingcontractors.com

Free assessment

Price transparency

Good customer service

Educational website

Services Offered

Window replacement/installation
Skylights

Granite State Glass

Granite State Glass Logo

Our Rating

User Rating

Write a Review
1 Mirona Rd, Portsmouth, NH 03801 (603) 436-0001 granitestateglass.com

Price transparency

Good customer service

Educational website

Services Offered

Glass showers
Screen repair
Window replacement/installation

Ron-Bet Home Improvement

Ron-Bet Home Improvement Logo

Our Rating

User Rating

Write a Review
99 State Rd Ste 1, Kittery, ME 03904 (207) 439-5868 ronbet.com

Good customer service

Educational website

Price transparency

Free assessment

Services Offered

Window replacement/installation

Glass Routes Co

Glass Routes Co Logo

Our Rating

User Rating

Write a Review
181 Littleworth Rd, Madbury, NH 03823 (603) 742-2600 glassroutes.net

Educational website

Good customer service

Free assessment

Price transparency

Services Offered

Vinyl frames
Glass showers
Window replacement/installation
Custom glass
Mirrors
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In Portsmouth?

Window installation and replacement costs are influenced by a number of factors, including the materials you choose, how difficult your windows are to access or install, and the number and size of the windows. On average, homeowners in Portsmouth spend around $280 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Replacing your current windows with new energy-efficient ones can significantly improve your home's appearance, noise reduction, comfort, value, and insulation. Clear indicators it's time to invest in new windows include:

  • Fogging between window panes, condensation issues, or rotting window frames that let in moisture.
  • High energy bills and discomfort due to poor insulation around windows.
  • Inefficient and outdated window styles that take away from your house's curb appeal.
  • Cold air and drafts coming in through old, loose-fitting windows.
  • Windows that are difficult to open, close, and lock properly due to wear and age.

How To Choose a Window Company

Picking a window installer with the proper qualifications helps ensure a smooth installation. We review the most important qualities to consider when choosing a qualified provider below.

Experience

Look for highly-regarded local companies with many years, ideally decades, of experience successfully installing all types of windows. These providers are more likely to understand Portsmouth's climate and your requirements. Request references from recent clients to confirm the quality of a company's work.

Certifications

Select an installer that is accredited by leading window companies and associations like the Fenestration and Glazing Industry Alliance, formerly known as the AMMA. Proper certification indicates that a contractor has training in best practices for installation. Confirm that installers are staff, not subcontracted workers, and check that the technicians working on your home are certified.

Reputation

Read through online reviews, check the Better Business Bureau (BBB), and ask for local references. Review customer feedback to confirm that the provider consistently delivers quality work and good customer service. Avoid companies that have complaints of shoddy work or unfinished jobs.

Process

The most experienced window installation providers will supply a comprehensive project plan and schedule, clear expectations, and an overview of all material and installation options. Avoid companies that offer ill-defined quotes or timelines that don't provide specifics upfront. Look for consistent contact throughout the process to avoid surprises later on.

Warranties

Research window firms that provide guarantees on their work, and that offer warranties on products and labor. This indicates confidence in their work. Also look for unlimited lifetime warranties that can transfer to new homeowners.

Materials

Verify that your window company works with long-lasting, durable brands, offers energy-saving window options, and fits your budget. Look for window options with enhanced UV protection, design flexibility, and good energy ratings. Check whether the materials include their own manufacturer warranties.

Frequently Asked Questions About Window in Portsmouth, NH

In Portsmouth, the best time to install windows is when temperatures are mild, generally in the spring or fall. These conditions allow installers to do their work without having to worry about extreme temperatures.

The ideal type of replacement windows for your Portsmouth home depends on when your home was built –the average house in Portsmouth was built around 1959. If your home was built a while ago, you might want to consider energy-efficient windows such as double-glazed windows, which are made to keep your home cool in the summer and warm in the winter. Wood frames also have a timeless look that's great for older homes. For newer homes, you can think about vinyl windows, which are affordable, durable and have a modern look.

The most expensive windows are double-hung windows. They are more complex than single-hung windows, and so are more costly. Single-hung windows are the most budget-friendly on the market. Vinyl and aluminum are the most affordable frame options.

The window installation process typically takes a day or two for a typical home. On the other hand, if you have many windows to install, it may take longer. Some contractors can complete the project in a single day, depending on the size of the job.

In some cases, you can replace your own windows, but it's better to hire a professional. It's important to consider the local temperature when replacing windows, as it will have an effect on the process. For example, the temperatures in Portsmouth can reach an average low of 41, so you need to consider energy-efficient windows that can protect from the cold. It's also important to measure correctly and understand the instructions for installation. Hiring a professional for your window replacement project will ensure that everything is done correctly.

Yes, many window companies offer financing for their services. Different companies have different financing options, so you should do your research to find the best option for you. Depending on your income level, which is a median of $100,169 a year in Portsmouth, you may be able to qualify for special financing.

Other Portsmouth, NH Home Services