Compare the highest-rated windows professionals in Londonderry, New Hampshire. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly reputable, family-owned and operated company specializing in high-quality window and door replacement for homeowners. They are known for their expert installation, extensive product knowledge, and focus on energy-efficient solutions from leading manufacturers like Harvey and Marvin.
Part of a national franchise with a strong local presence, Window World is known for offering a value-oriented solution for vinyl window replacement. They provide a wide range of standard and custom-sized windows, focusing on affordability and a streamlined process, making them a popular choice for whole-home replacements.
As a direct subsidiary of the Andersen Corporation, this provider offers a full-service, premium experience from consultation to installation. They are the exclusive installer of the proprietary Andersen Fibrex® composite window, which is marketed for its durability, energy efficiency, and low maintenance. They specialize in custom-built, high-end window solutions.
** The window replacement and service market in Londonderry, NH, is competitive and served by a mix of local specialized contractors and regional or national providers. The quality of providers is generally high, with a strong customer emphasis on energy efficiency due to New England's climate. Homeowners in Londonderry have access to a range of products from standard vinyl replacement windows to premium custom wood and composite options. **Competition Level:** Moderate to High. While few are based directly in Londonderry, numerous established companies from neighboring towns actively compete for business in the area. **Typical Pricing:** Pricing is broad, reflecting the range of quality and services. * **Value Tier (e.g., Window World):** $300 - $600 per window for standard vinyl replacement. * **Mid-Range (e.g., New England Window & Door):** $600 - $1,200 per window for higher-performance, brand-name vinyl or composite windows. * **Premium Tier (e.g., Renewal by Andersen):** $1,000 - $2,500+ per window for fully custom, high-performance composite or wood windows with a full-service installation. The market is characterized by informed consumers who prioritize long-term value, energy savings, and professional installation over the lowest initial cost. It is always recommended for homeowners to obtain multiple, detailed quotes.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Londonderry regulations and climate
Get answers to common questions about windows services in Londonderry, New Hampshire.
For a standard double-hung vinyl window replacement in Londonderry, homeowners can expect to pay between $800 and $1,200 per window, including professional installation. This range accounts for the quality of materials needed for New Hampshire's climate, such as low-E glass and argon gas fills for energy efficiency. The final cost for a whole-house project will vary based on the number of windows, their size, style (e.g., casement, bay), and any custom features required by your home's architecture.
The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer the mild, dry weather that is safest and most efficient for installation, avoiding the extreme cold that can complicate sealing and the high summer humidity that can affect materials. Scheduling during these shoulder seasons also helps you avoid the peak summer demand, potentially leading to better availability and pricing from local contractors.
Yes, all window installations in Londonderry must comply with the New Hampshire State Building Code, which includes current International Residential Code (IRC) standards for egress, structural support, and energy efficiency. While a simple replacement in the existing opening often doesn't require a permit, changes to the opening size or structural framing likely will. It's crucial to hire a licensed installer who will handle any necessary permits with the Londonderry Building Department to ensure compliance.
Prioritize contractors who are licensed and insured in New Hampshire and have a verifiable physical address. Ask for local references in Londonderry or nearby towns to see their work firsthand and check reviews on platforms like Google and the Better Business Bureau. A reputable local provider will understand the specific needs of our region, such as proper flashing for ice dam prevention and offering products with strong U-factor ratings suitable for our cold winters.
For Londonderry's cold winters and variable seasons, look for windows with a low U-factor (measuring heat loss) and a low Solar Heat Gain Coefficient (SHGC) to maximize winter heat retention and minimize summer heat gain. Triple-pane glass with argon gas and low-E coatings is highly recommended for superior insulation. Ensure the installer uses best practices for air sealing to prevent drafts, a critical step given our windy conditions and potential for ice dams along the roof line.