Compare the highest-rated windows professionals in Knoxville, Maryland. All contractors are licensed, insured, and verified through our rigorous screening process.
A leading, large-scale home improvement company based in the Maryland region, specializing in premium window replacement with a strong focus on energy efficiency and professional installation. They are known for their comprehensive service, from consultation to installation and warranty.
A nationally recognized window replacement company with a strong local franchise that serves the Frederick area. They offer a wide variety of window styles and brands, focusing on both replacement and new construction windows with a lifetime warranty.
A well-regarded local contractor specializing in high-quality window and door installations. They are known for personalized service, attention to detail, and handling both standard replacements and more complex custom projects, including historical renovations.
** The window service market for Knoxville, MD residents is characterized by high-quality regional and local contractors rather than in-town providers. Due to Knoxville's affluent and historic nature, particularly with its proximity to the Potomac River and rural estates, the demand leans towards custom, high-performance, and historically appropriate window solutions. Competition is strong among providers from Frederick and Hagerstown to serve this market, ensuring a good range of options. * **Average Quality:** The quality is generally high, with contractors offering premium brands like Andersen, Pella, and Marvin, alongside high-quality vinyl lines. Craftsmanship is a key differentiator. * **Competition Level:** Moderate to High. While there are no storefronts in Knoxville itself, numerous well-established companies compete for business in the broader Frederick County region. * **Typical Pricing:** Pricing is typically above the national average. A full-window replacement project for a standard home can range from $15,000 to $40,000+, reflecting the premium on energy efficiency, custom sizes/materials, and the expertise of the installers serving this market. Repair services and single-window replacements are, of course, available at lower price points.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Knoxville regulations and climate
Get answers to common questions about windows services in Knoxville, Maryland.
In the Knoxville and broader Frederick County area, the cost for a full window replacement typically ranges from $600 to $1,200 per window, including professional installation and mid-range vinyl windows. Final pricing depends on the window style (e.g., double-hung vs. picture), size, energy efficiency features, and any structural repairs needed to older homes common in the region. We recommend getting 2-3 itemized quotes from local, licensed installers to understand the investment for your specific project.
Knoxville's climate makes energy efficiency a top priority. We recommend windows with a low U-factor for winter heat retention and a low Solar Heat Gain Coefficient (SHGC) to block summer heat. Look for durable, low-maintenance materials like vinyl or fiberglass that resist humidity-related warping, and ensure proper installation with robust weather sealing to prevent air infiltration, which is critical for comfort and lowering year-round energy bills.
For standard window replacements where the opening size is not altered, a permit is generally not required in unincorporated Frederick County. However, if you are changing the window size, altering the structure, or live within a Historic District (like parts of nearby Frederick City), permits and approvals are necessary. A reputable local installer will know these regulations and handle any required paperwork, so always verify their knowledge of county codes.
While installations can be done year-round, the ideal windows are late spring and early fall. These seasons offer mild, dry weather in Maryland, which is optimal for the installation process and sealing materials. Scheduling during these off-peak periods may also provide more flexibility and potentially faster service from contractors compared to the busy summer rush or during winter when cold can complicate sealing and curing.
Prioritize companies that are licensed, insured, and have strong local references in Frederick County. Look for installers experienced with the varied home styles in our area, from older farmhouses to newer developments, as proper flashing and sealing techniques are crucial. Check for manufacturer certifications (like from Andersen or Pella) and membership in local organizations like the Frederick County Building Industry Association, which indicates a commitment to community standards.