The Window Source NH: Replacement Window Installer in New Hampshire, Massachussets, and Southern Maine The Window Source NH: Replacement Window Installer in New Hampshire, Massachussets, and Southern Maine The Window Source NH: Replacement Window Installer in New Hampshire, Massachussets, and Southern Maine
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Harvey Classic Double Hung Replacement Windows in New Hampshire Starting At $587 Harvey Classic Double Hung Replacement Window Installer in New Hampshire Starting At $587 Series 3000 Double Hung Replacement Windows in New Hampshire Starting At $587 Lifetime Warranty On All Windows & Doors Energy Star Rated Replacement Double Hung Windows in New Hampshire Family Owned & Operated Window Installation Contractor in New England The Window Source Is Where New England Shops For Doors & Windows

The Window Source Our Best Seller

Harvey Classic Double Hung Replacement Windows

Installed Starting @ $587!An Exceptional .24 u Value

    Locally & Family Owned. Serving MA, NH, & ME.

    The Window Source NH: Replacement Window Installer in New Hampshire, Massachussets, and Southern Maine

    Best Window. Best Price. Guaranteed.

    Man pressing face against glass to stare at unbelievable window deal

    You Will Love Our Harvey Classic Double Hung Windows

    Better Windows. Bigger Savings. YES, Really!

    • Exceptional Energy Efficiency – .24 U-Value
    • American-Made with a Full Lifetime Warranty
    • Save Thousands Compared to National Brands

    Upgrade your home with the window that does it all. Our Harvey Classic Double Hung is a homeowner favorite for good reason — combining timeless style with modern energy performance.

    Whether you're replacing a few windows or doing the whole house, you’ll get unbeatable value without compromising quality. And with our local team at The Window Source NH, installation is easy and stress-free.

    *Limited-time seasonal offer. Financing available. Free consultations included.

    🏡 Best Window, Best Price — Guaranteed!

    Get Your Free Quote

    Homeowner enjoying warmth indoors during winter thanks to new windows

    Our Best Seller For A Reason

    Summer-Ready Comfort. Year-Round Savings.

    Keep the Heat Out — and Your Money In.

    • Exceptional .24 U-Value for Superior Insulation
    • Eliminate Drafts and Cold Spots
    • American-Made Quality with Lifetime Protection

    Say goodbye to hot spots, sweaty afternoons, and sky-high energy bills. Harvey Classic Double Hung Windows are built to block summer heat while keeping your home cool and comfortable — all season long.

    With an outstanding .24 U-Value, these windows help your A/C work smarter, not harder — giving you better comfort and lower costs every month. Plus, they look amazing doing it.

    *Free quote, flexible financing, and expert local installation available now.

    ❄️ Keep the Heat Out. Keep the Comfort In.

    Get Your Free Quote

    You'll Love Your Harvey Classic 🪟 Windows.

    🪟 The Window Source Replacement Window & Door Company New Hampshire, Massachusetts, & Maine

    New England's Source For Windows & Doors

    The Window Source NH installs windows & doors in New Hampshire, Massachusetts, and Southern Maine. Our locally owned company cares about each and every customer.

    Best Windows. Best Price. Guaranteed.© We offer the highest-quality replacement windows available at factory-direct pricing. We guarantee our customers get a premium, energy-efficient product for a fraction of the cost of our competitors' models.

    No DIY & Big Box Stores. We measure, custom order, & professionally install your windows at factory direct prices. That's the Window Source advantage.

    Best Windows. Best Price. Guaranteed.©

    • 100% Customer Satisfaction Guarantee
    • FREE In-Home Estimates
    • ENERGY STAR® Rated Products
    • Transferable Lifetime Warranties
    • Independently Certified NFRC Labels
    • Best Value Best Price Guaranteed©

    Save on a brand new front entry door & sliding patio door. Browse our site or simply call us today for friendly, professional support.

    Double Hung Models

    • Harvey Slimline Double Hungs
    • Harvey Classic Double Hungs
    • Gentek Signature Elite Series 3000
    • Gentek Signature Elite Series 9000
    Double Hung Windows in New Hampshire, Massachusetts, and Southern Maine

    Harvey Slimline Vinyl Double Hung Windows

    Harvey Slimline Starting @ $534 installed. Enjoy a sleek design and solid energy performance with the Slimline Series 1000 Double Hung. Built locally by Harvey Windows and backed by a transferable Lifetime Warranty.

    Harvey Slimline »

    Double Hung Windows in New Hampshire, Massachusetts, and Maine

    Harvey Classic Vinyl Double Hung Windows

    Harvey Classic Starting @ $587 installed. Our best-selling window — and for good reason. With an outstanding .24 U-Value, durable fusion-welded frames, and double-strength glass, the Classic delivers high-end performance at an unbeatable price. Includes a full Lifetime Warranty.

    Harvey Classic »

    Double Hung Windows in New Hampshire, Massachusetts, and Maine

    Gentek Signature Elite Vinyl Double Hung Windows Series 3000

    Series 3000 Starting @ $587 installed. The Gentek 3000 Series offers strong energy efficiency and durability. Featuring fusion-welded frames, foam insulation, and double-strength glass, this window includes a Lifetime Warranty and great curb appeal.

    Gentek Signature Elite Series 3000 »

    Professional Replacement Installation in New Hampshire, Massachusetts, and Maine

    Gentek Signature Elite Vinyl Double Hung Windows Series 9000

    Series 9000 Starting @ $681 installed. Upgrade to the best in energy savings with the Gentek 9000 Series. Triple-pane glass, Energy Star Most Efficient rating, and tax credit eligibility make this the ultimate high-performance option. Includes a Lifetime Warranty.

    Gentek Signature Elite Series 9000 »

    Amesbury Mass Chamber of Commerce
    Synchrony Financing
    The Window Source, Windows Installation & Service, Seabrook, NH
    We Are An American Window & Door Institute (AWDI) Approved Window Installer
    Read Unbiased Consumer Reviews Online at AngiesList.com
    Hampton Area Chamber of Commerce
    Installation Masters
    EPA Lead Safe

    Let's Work Together

    In-Home
    Quote

    Receive a free, precise quote. We measure your windows and doors accurately to provide an exact estimate.

    Custom
    Manufactured

    We send your dimensions to our manufacturing partners. Your windows are custom made for a perfect fit.

    Schedule
    Installation Day

    We inspect and prepare your order. Installation day comes and perform our signature "No Mess" install.

    Request Quote

    Our Windows

    • Double Hung Windows
    • Sliding Windows
    • Bow & Bay Windows
    • Casement & Awning
    • Basement Windows
    • Garden Windows
    • Colonial Grid
    • Architectural Windows
    Double Hung Windows in New Hampshire, Massachusetts, & Maine Double Hung Windows » Siding Windows in New Hampshire, Massachusetts, & Maine Sliding Windows » Bow & Bay Windows in New Hampshire, Massachusetts, & Maine Bow & Bay Windows » Casement & Awning Windows in New Hampshire, Massachusetts, & Maine Casement & Awning » Basement Windows in New Hampshire, Massachusetts, & Maine Basement Windows » Garden Windows in New Hampshire, Massachusetts, & Maine Garden Windows » Colonial Grid Windows in New Hampshire, Massachusetts, & Maine Colonial Grid » Architetural Windows in New Hampshire, Massachusetts, & Maine Architectural Windows »

    Celebrating 10 Years Of Windows

    Thank you, New England! We have been your local window contractor for over 10 years. Our team provides:

    • Best Windows. Best Price. Guaranteed©
    • Professsionally Installed
    • Energy Star Certified
    • Lifetime Warranty

    Installing throughout New Hampshire, Massachusetts, and Maine. Thank you to our customers of yesterday and tomorrow!

    Call Now »

    The Window Source NH
    4.8
    powered by Google
    review us on
    Scott Orlosk
    12:54 17 Oct 22
    About 7-years ago, I had several large picture windows and patio doors replaced at a home on the beach. They all directly faced the ocean and take a beating from wind and salt. This installation was neat and tidy. The products had a lifetime warranty but like most consumers, I wondered what would actually happen if a window needed to be replaced. After-all, it was a harsh environment - and a warranty is only as good as the company making the promise.After 7-years of pounding from mother nature, one of the 2nd floor window's insulating seals let go and moisture developed. The business owner came out, took a look, ordered a new window and replaced it with no cost to me. Gracious and professional handling all around. I'm impressed.
    Josh Lent
    19:09 12 Sep 22
    After calling Skip to relay that I was a bit anxious about the window replacement as I had been recently burned by another company with incorrect installation, Skip went above and beyond to ensure that I was completely at ease by providing great communication and photo evidence of the correct installation. My concerns were heard, extra attention/effort was provided and the overall service received was top notch. Highly recommended. Thank you!
    M S
    23:21 23 Apr 22
    The Window Source of southern NH installed new casement windows in an addition on our existing home. Communication and scheduling was excellent, installer Craig is very professional. Windows look great and match the existing house which is 40 years old. Told the owner, Skip we will be calling him again to replace a couple old windows. A+ company and customer satisfaction!!
    Maggie Plasse
    19:18 29 Nov 21
    I bought 7 windows from Window Source. There was a slight problem with one of the windows. Skip, the owner, was quick in responding and took care of the problem right away. I was very happy with the installer, Leroy, he was professional, polite and cleaned up. When he left, he took the old windows and storm windows and left me with new insulated windows.....no mess at all. I need a new front door and will certainly call Window Source. Thank you Skip, Leroy and Andrea.
    Kyra Caron
    12:26 01 Apr 21
    We reached out to the window source to install 9 new windows in our 1900 year old house. Gary who came out to give us a quote was easy to work with and very informative. He walked me through what the process would be and why we needed what we needed. We had two other companies give us quotes but we felt the quality and knowledge of the window source company was the best option for us. For installation it was such an easy process and the installers were very professional. They completed the project in two days and it looks amazing. They really did a great job and I’m very happy we decided to choose the window source.

    Let's Get Started

    Hit Start

    Click start & we'll set up a quote.

    In-Home Quote

    Schedule a quick in-home quote at your convenience.

    Install Day

    Experience our "No Mess" install, often completed in one day.

    Start

    Skip Longacre, Owner of Window Source NH

    "To all of our customers; thank you. Our success relies on you and your experience. Your satisfaction has always been, and will always continue to be, our highest priority."

    - Skip Longacre
    Owner The Window Source NH, MA, & ME

    Flag Of The United States of America wiki commons

    Owner Skip Longacre, former US military, understands what it means to be of service to our nation. We proudly offer a 5% discount off of all goods and services to all military, first responders, police, fire department personnel, veterans, emergency medical technicians, as well as senior citizens.

    Double Hung Windows in New Hampshire, Massachusetts, and Southern Maine

    Double Hung Windows

    Series 3000 starting @ $559 installed. We offer the industry's highest quality and value replacement windows available. Whether you need one or three dozen, our professional crew will often offer same day installation.

    Double Hung Windows »

    Double Hung Windows in New Hampshire, Massachusetts, and Maine

    Sliding Patio Doors

    At The Window Source we offer replacement doors for your home. Whether you need front or a sliding patio doors for your home, then call the window and door installation professionals at The Window Source.

    Front Doors »
    Sliding Patio Doors »

    Professional Replacement Installation in New Hampshire, Massachusetts, and Maine

    5 Star Professional Installation

    Our customers consistently give us five star ratings because we are professional, care about your time & space, and ensure that your home gets the best product installation available in the industry.

    Contact Us Now »

    The Window Source NH: Replacement Window Installer in New Hampshire, Massachussets, and Southern Maine
    • The Window Source of NH
    • Seabrook Showroom
      779 Lafayette Rd Suite #1 Seabrook, NH 03874
    • (603) 764-7212
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    SUREFIRE Solutions, LLC © All Rights Reserved

    You've Got To See This Window!

    These Harvey Classic Double Hungs come with an exceptional .24 u value, lifetime warranty, and are American-made. Starting @ Only $587 installed.

      Special Offer Special Offer

      The Window Source

      • Best Value. Best Price. Guaranteed.
      • All Products Professionally Installed
      • Energy Star Rated
      • Lifetime Warranty
      • Most Popular* Double Hung Windows
      • Two & Three Lite Sliding Windows
      • Front Entry Doors
      • Sliding Patio Doors
      • View All Windows
      • Energy Efficient Windows
      • Lifetime Transferable Warranty
      • Easy & Instant Financing
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      Save Money On Double Hung Windows in New Hampshire, Massachusetts, & Maine

      Request A Quote

      Please feel free to ask us questions or get an estimate. You can call us at (603) 764-7212 or use the form below. We will get back to you in a timely manner.

        Our Products

        • Best Value. Best Price. Guaranteed.
        • Double Hung Windows in New Hampshire, Massachusetts, & MaineDouble Hung Windows
        • Siding Windows in New Hampshire, Massachusetts, & MaineSliding Windows
        • Bow & Bay Windows in New Hampshire, Massachusetts, & MaineBow & Bay Windows
        • Casement & Awning Windows in New Hampshire, Massachusetts, & MaineCasement/Awning Windows
        • Basement Windows in New Hampshire, Massachusetts, & MaineBasement Windows
        • Garden Windows in New Hampshire, Massachusetts, & MaineGarden Windows
        • Colonial Grid Windows in New Hampshire, Massachusetts, & MaineColonial Grid
        • Architetural Windows in New Hampshire, Massachusetts, & MaineArchitectural Windows

        All of our products come with a lifetime warranty. Call us today at (603) 764-7212 to schedule your free estimate.

        • Front Doors in New Hampshire, Massachusetts, & MaineFront Entry Doors
        • Patio Doors in New Hampshire, Massachusetts, & MaineSliding Patio Doors
        • Vinyl Siding in New Hampshire, Massachusetts, & MaineVinyl Siding

        Thank you for shopping at
        The Window Source NH!

        The Window Source NH: Replacement Window Installer in New Hampshire, Massachussets, and Southern Maine
        Save Money On Double Hung Windows in New Hampshire, Massachusetts, & Maine

        Get in touch with us to claim our latest offers and get your free quote.