Window contractors replace old or damaged windows and install new ones in additions and remodels. They measure openings, recommend frame materials and glass options, and install and seal windows to keep out drafts and water.
Common window services include:
Consider window replacement when windows are drafty, fogged between panes, hard to open, rotting or letting in water, or when you want better comfort and appearance. Glass-only repairs and window cleaning are separate categories.
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Mel Development Inc., founded in 2001, is a trusted home remodeling San Diego contractor dedicated to turning homeowners’ ideas into reality through expert craftsmanship and thoughtful, functional design. From kitchens and bathrooms to home additions and cabanas, our team manages every detail with precision—ensuring a smooth, stress-free experience and results that are built to last.
Perfect Windows & Doors Corp sells and installs high-quality, energy-efficient windows and doors for residential and commercial customers across New York City. The company provides in-home consultations, measurements, delivery, professional installation, and repair services, guarantees materials and workmanship, and focuses on improving comfort, reducing noise, providing UV protection, and enhancing curb appeal while offering fast quotes and responsive customer service.
Aron Windows & Doors Inc is a New York City–based door and window contractor that provides installation, repair, replacement, restoration, glass and mirror installation, and ongoing maintenance services for residential and commercial properties. The company serves Manhattan, Brooklyn, Queens, the Bronx, Staten Island, Long Island and Jersey City, works with certified installers on storefront and building projects, offers free quotes and project estimates, highlights past work with property managers and management firms, and presents itself as an award-winning (2024) door and window service provider.
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Big L Windows & Doors is a Cheektowaga, NY window and door company serving Buffalo and Western New York for more than 40 years that offers replacement and new-construction windows, entry and patio doors, storm doors, professional installation, financing options, a Total Trust guarantee covering labor beyond manufacturer warranties, and ongoing service and warranty support; Big L Windows & Doors positions the company as a customer-focused local provider emphasizing quality products, skilled installation crews, a showroom presence, and responsive post-sales service.
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Comfort Windows & Doors is an Upstate New York remodeling company founded in 1979 that manufactures and installs custom windows and doors and delivers a broad range of exterior and interior home improvement services including roofing, siding, awnings, sunrooms/enclosures, decks, insulation and bathroom remodeling; Comfort Windows & Doors is family-owned and locally operated, is BBB-accredited and EPA Lead-Safe certified, offers free estimates, financing and strong warranties, and serves multiple New York locations with headquarters at 3624 John Glenn Blvd, Syracuse.
Domino Window Repair Inc. is a New York City–based window and glass company located at 860 W 181st St, specializing in residential and commercial window installation, replacement, and repair, including shower doors, glass doors, and mirrors. The company is fully insured, offers on-site quotations and follow-up customer service, and serves the greater New York area with a contact phone number of (917) 863-0177. Contact page.
Glass Block by Chris is a Buffalo, NY window installation and repair specialist that installs, replaces and repairs glass block, basement and garage windows and provides glass block partition and repair services; the company owner has over a decade of experience, the company is fully insured and offers free estimates while serving Buffalo, Cheektowaga, East Aurora and Hamburg, and Glass Block by Chris emphasizes precise, efficient installations, premium glass block products, quick turnaround and competitive pricing.
Global Window NY is a New York City–based window and door installation company that provides replacement windows, window repair, siding, and door services for residential and commercial customers across Brooklyn, Queens, the Bronx, Staten Island, and surrounding counties; Global Window NY offers on-site estimates, installation of vinyl and hurricane-rated windows, and exterior improvement services while operating from local Brooklyn/Whitestone-area locations and maintaining phone and directory listings for scheduling and inquiries.
JAGulick Window Co. is a second-generation, family-owned Buffalo, NY workshop with more than 30 years of experience designing, manufacturing, and restoring high-quality custom wood windows and doors; the company, led by John Gulick and Chesley Devlin, combines modern technology with time-tested craftsmanship to produce replacement sashes, restored historic windows and doors, and custom joinery that preserve original aesthetics while improving longevity and performance, using specialty woods (including FSC-certified Eastern White Pine) and insulated or laminated glass options to deliver durable, historically sensitive solutions.
M & R Windows is a Bronx-based window and door installation company serving the tri-state area that provides professional window and door installation, replacement, repair, and restoration services for residential and commercial clients. M & R Windows brings decades of industry experience and focuses on high-quality workmanship, reliable project execution for property managers and building owners, and strong customer service by ensuring projects are completed on schedule and to client specifications.
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A window contractor measures openings, helps you choose window styles and materials, removes old windows, installs new units with proper flashing and insulation, and finishes trim. Some also cut new openings or enlarge existing ones.
Insert replacement fits a new window into the existing frame and disturbs less trim. Full-frame replacement removes the old frame, which allows inspection for rot and better flashing. An installer can recommend the method after checking your frames.
Compare window brands, frame materials, glass packages and energy ratings, along with installation details, cleanup and warranties for both product and labor. Ask whether a permit is needed and who measures and orders the windows.
Cost depends on the number, size and style of windows, frame material, glass options, the installation method, repairs to rotted framing, interior and exterior trim work, upper-floor access and local permit requirements.
Remove window treatments and hardware, move furniture away from windows and clear a path for the crew. Take down fragile items nearby and plan for rooms to be open to the outdoors briefly while each window is replaced.