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10 Best Window Replacement Companies in Merrimack, NH

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Written By David Cusick

Last Updated April 2024

Replacing your windows can be costly, but is a great way to increase the energy efficiency and value of your home. If your windows are on the older side, 25–30% of your house’s heat or cool air could be leaking out, according to the Department of Energy. In Merrimack, this can equal an extra $422 per year on your power bills. Our list of the top window installation companies in Merrimack will help you find the best installer for you.

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Top 10 Best Window Replacement Companies in Merrimack

Renewal by Andersen of Boston

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30 Forbes Rd, Northborough, MA 01532 (508) 351-2236 renewalbyandersen.com

Price transparency

Free assessment

Good customer service

Educational website

Services Offered

Glass doors
Skylights
Bay windows
Window replacement/installation
Double-hung

Power Home Remodeling

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362 Elm St, Marlborough, MA 01752 (508) 460-1943 powerhrg.com

Good customer service

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Energy-efficient options
Window replacement/installation

Window World of New Hampshire

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735 E Industrial Park Dr Unit A, Manchester, NH 03109 (603) 935-9878 windowworldnewhampshire.com

Timely service

Good customer service

Free assessment

Price transparency

Educational website

Services Offered

Bay windows
Double-hung
Window replacement/installation
Glass doors

DaBella

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

Good customer service

Timely service

Services Offered

Window replacement/installation
Vinyl frames
Glass doors
Double-hung

Nashua Glass

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110 Chestnut St, Nashua, NH 03060 (603) 882-0648 nashuaglass.com

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Price transparency

Good customer service

Services Offered

Storm/impact windows
Glass repair
Glass doors
Glass showers
Tempered glass
Window replacement/installation
Custom glass
Mirrors

Clear Choice Home Improvements

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8025 S Willow St #107, Manchester, NH 03103 (603) 232-0237 clearchoicehomeimprovement.com

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Timely service

Good customer service

Price transparency

Services Offered

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

Pane Free Glass

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270 Amory St #17, Manchester, NH 03102 (603) 497-1830 panefreeglass.com

Good customer service

Educational website

Price transparency

Free assessment

Services Offered

Glass repair
Window replacement/installation
Glass showers
Glass doors
Storm/impact windows
Custom glass
Mirrors

Pella Windows & Doors of Bedford

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384 State Rte 101 Unit #2, Bedford, NH 03110 (603) 725-4670 pellabranch.com

Price transparency

Free assessment

Good customer service

Educational website

Services Offered

Bay windows
Glass doors
Double-hung
Window replacement/installation

Dependable J M R Siding

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65 Pine Island Rd, Manchester, NH 03103 (603) 669-5020 jmrsiding.com

Educational website

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Price transparency

Good customer service

Services Offered

Window replacement/installation
Energy-efficient options
Vinyl frames

Rejean's Custom Quality Siding LLC

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74 Depot Rd, Manchester, NH 03103 (603) 668-7677 nhwindowsiding.com

Price transparency

Free assessment

Good customer service

Services Offered

Custom window designs
Window replacement/installation
Glass doors
Vinyl frames
Storm/impact windows
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 Merrimack?

Window installation and replacement costs depend on a number of factors, including how difficult your windows are to access or install, the number and size of the windows, and the materials you choose. On average, Merrimack homeowners should expect to spend roughly $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

Adding new energy-efficient windows can significantly improve your home's comfort, appearance, noise reduction, insulation, and value. Clear indicators that it's time to invest in new windows include the following:

  • Condensation issues, fogging between window panes, or rotting window frames letting in moisture.
  • Outdated and inefficient window styles that reduce your house's curb appeal.
  • Windows that are difficult to close, open, and lock properly due to age and wear.
  • Drafts and cold air coming in from old, loose-fitting windows.
  • A chilly house and high energy bills from poor window insulation.

How To Choose a Window Company

For a successful window replacement, you need to locate an installer with proven expertise. Below, we go over the most important considerations when selecting a window installer.

Experience

Look for well-established local installers with extensive experience. Companies that have served Merrimack homeowners for years are more likely to understand the local climate and how to best meet your needs. Ask for references from recent customers to confirm a company’s reputation.

Certifications

Choose companies that are certified by top window brands, and that have Fenestration and Glazing Industry Alliance (formerly AAMA) certification. Certification means they've been properly trained in installation best practices. Make sure installers are staff, not subcontractors, and confirm that any technicians working on your home are certified.

Reputation

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

Process

A quality provider will give you a detailed project plan, reasonable timeline, clear expectations, and an overview of all material and installation options. Avoid providers that offer unclear quotes or timelines. Insist on continual contact throughout the process, so you aren't caught off guard when installation starts.

Warranties

Look for contractors that stand behind their work and offer warranties on materials and labor. This demonstrates trust in their window installations. Seek out unlimited lifetime warranties that can even be transferred to new homeowners.

Materials

Ensure that a company uses durable, energy-efficient window brands that fit your budget. Look for enhanced UV protection, good energy ratings, and design flexibility. Confirm the window materials come with their own manufacturer warranties as well.

Frequently Asked Questions About Window in Merrimack, NH

In Merrimack, the best time to install windows is when temperatures are mild, generally between the spring and fall. This enables professionals to do their work with less worry about extreme temperatures.

The best type of replacement window for your Merrimack home will vary based on the age of your home, as well as your personal style and budget. You'll want to consider the style of your home — such as if it's newer — so your new windows match. Wood windows can give a traditional look and appearance, while vinyl windows are more popular in newer homes. Fiberglass-framed windows are also a popular choice, since they are energy efficient and durable.

The most expensive windows are double-hung windows. They are more intricate than single-hung windows, which makes them more expensive. Single-hung windows are the least expensive on the market. In terms of frames, vinyl and aluminum are the most affordable options.

The window installation process typically involves measuring and ordering the windows, preparing the area for installation, taking out the old window, installing the new one, and insulating the frame. Depending on the kind of window being put in, additional steps might be required.

After window installation, it's important to check for any air leaks and make sure the windows are properly sealed. You should also clean the windows regularly to stop debris from accumulating and leading to damage. Additionally, if you live in an area with abundant rainfall, you should check the window sills and frames regularly to make sure that the seals are not wearing away or cracking.

Window companies in Merrimack typically offer a range of services, including measuring and installing new windows, repairing existing windows, swapping out window glass, and installing window treatments. They may also offer extra services such as weatherproofing or cleaning.

Hiring a professional window installer helps guarantee the job is done correctly. Professional installers will measure your windows properly to get a perfect fit and will use the right materials and techniques to ensure your windows will be correctly sealed and secure. Additionally, professional installers are likely to have access to higher quality materials and more experience than the average homeowner, so you can expect your windows to be installed correctly and last for years to come.

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