Expert Window and Door Installation in Wilmington, Delaware & Southeastern Pennsylvania
Windows and doors shape how your home looks, feels, and performs. They influence energy efficiency, security, comfort, and curb appeal while framing the natural light and views you enjoy every day. Whether you are replacing outdated windows, upgrading to high-performance models, or installing a new entry door that transforms your exterior, A.W. Viohl Contracting LLC delivers expert craftsmanship designed for long-term durability and beauty. We proudly serve homeowners in Wilmington, Greenville, Hockessin, West Chester, Haverford, and surrounding Delaware and Pennsylvania communities with reliable window and door solutions.
Why Proper Installation Makes All the Difference
Even premium windows and doors can fail to perform if they are not installed correctly. Poor insulation leads to drafts and higher energy bills. Inadequate flashing can allow moisture intrusion that damages framing and interior finishes. Improper alignment may cause sticking, air leaks, and premature wear. Details matter, and small installation mistakes can lead to costly problems over time.
Since 2008, Andrew Viohl has provided professional window and door installation throughout New Castle County, Delaware County, and Chester County. As a Wilmington native who built his business on craftsmanship and trust, Andrew focuses on precision, structural integrity, and clean finishing work that stands the test of time.
Every project begins with a conversation. Some homeowners prioritize energy savings, while others want improved curb appeal, increased natural light, enhanced security, or better sound reduction. We evaluate your home’s condition, discuss your goals, and recommend products and installation methods that align with your priorities.
Complete Window Installation and Replacement Services
Energy-Efficient Replacement Window Installation
Replacement windows are an efficient way to update existing openings without major disruption to interior or exterior finishes. We install high-quality vinyl, fiberglass, wood, and clad-wood windows suited to your architectural style and performance needs.
Our process includes careful removal of existing units, inspection of the opening, precise leveling and anchoring, proper insulation and air sealing, and detailed interior and exterior trim work. The result is a clean, weather-tight installation designed for decades of reliable performance.
New Construction Window Installation for Additions and Renovations
For additions, major renovations, or full-frame replacements, new construction windows offer structural integration and flexibility in sizing. This option allows for improved support, updated weather barriers, and even larger openings to bring in additional natural light.
We coordinate flashing systems, moisture protection, and finishing details to ensure the new windows blend seamlessly with your home while meeting modern energy standards.
Custom and Architectural Window Installations
We install a wide variety of specialty window styles, including bay and bow windows that add dimension and interior space, picture windows that highlight scenic views, garden windows for kitchens, and custom shapes such as arches, circles, and trapezoids. These installations require careful structural planning and finishing expertise to achieve both visual impact and long-term stability.
Modern Window Technology for Year-Round Energy Performance
Today’s window technology offers significant improvements in thermal performance. We guide you through glass packages, Low-E coatings, gas fills, multi-pane configurations, and advanced frame designs that reduce energy loss and increase comfort year-round.
For homes in historic areas such as Greenville or Chadds Ford, we help select options that improve efficiency while maintaining architectural character and meeting local guidelines when necessary.
Expert Door Installation for Security, Style, and Performance
Secure and Stylish Entry Door Installation
Your front door sets the tone for your entire home while providing security and protection from the elements. We install wood, fiberglass, steel, and decorative glass entry systems in traditional and contemporary designs. From classic raised panels to sleek modern styles, we ensure your new door enhances both appearance and functionality.
Installation includes proper threshold alignment, secure framing, weather sealing, hardware installation, and careful adjustment for smooth daily operation.
Patio Door Installation That Connects Indoor and Outdoor Living
Patio doors create a connection between indoor and outdoor living spaces. We install sliding glass doors, hinged French doors, and multi-slide systems that open wider areas to decks, patios, and backyards. Proper installation is essential for structural support, weather protection, and long-term performance. We ensure each system operates smoothly and seals securely through all seasons.
For homeowners upgrading decks, porches, or three-season rooms, we coordinate patio door installations to create cohesive transitions and maximize usability.
Interior Door Installation for Style and Function
Interior doors contribute to privacy, design consistency, and everyday convenience. We install panel doors, modern flat designs, French doors, pocket doors, and barn-style systems. Our installation process focuses on precise fitting, hardware alignment, and seamless integration with flooring and trim so every door operates effortlessly.
Storm and Screen Door Installation for Added Protection
Storm and screen doors add ventilation and protect entry systems from harsh weather. We install durable options that complement your exterior style while providing smooth operation and long-term reliability.
Proudly Serving Wilmington, Delaware and Southeastern Pennsylvania
A.W. Viohl Contracting serves homeowners across:
Delaware: Wilmington, Greenville, Hockessin, Newark, and throughout New Castle County
Delaware County, Pennsylvania: Haverford, Newtown Square, Broomall, Media, and surrounding Main Line communities
Chester County, Pennsylvania: West Chester, Kennett Square, Chadds Ford, and the Brandywine Valley region
As a Delaware-licensed contractor (#2005201665), Andrew Viohl and his team bring local knowledge and personal accountability to every project. Living and working in the region allows us to understand local architecture, climate demands, and homeowner expectations.
Seamlessly Coordinating Window and Door Upgrades With Larger Renovations
Window and door upgrades often align with broader renovation plans. Replacing windows during a kitchen remodel allows for unified design choices and efficient scheduling. Updating patio doors while building a deck enhances flow and visual consistency. Installing a new entry door during siding or exterior painting projects streamlines the process and ensures cohesive results.
We work closely with homeowners to integrate window and door installations into larger remodeling efforts while maintaining consistent craftsmanship throughout the home.
Schedule Your Window and Door Consultation
If you are considering new windows or doors, A.W. Viohl Contracting offers the experience and attention to detail your home deserves. From the initial consultation to final installation, we focus on precision, durability, and clear communication.
Contact A.W. Viohl Contracting today to schedule your consultation and learn how professional window and door installation can improve your home’s comfort, efficiency, and appearance. Let’s create results that last.
