Business Details
Your Trusted Source for Replacement Windows & Doors in Newark, DE
Delaware Window Supply has established itself as a premier supplier of high-quality replacement windows and doors for contractors and homeowners across the Maryland/Delaware/Pennsylvania tri-state area. With a focus on energy efficiency and durability, we provide custom vinyl window and patio door solutions designed to meet the unique needs of each project. Our commitment to excellence is reflected in our partnerships with industry leaders like Slocomb Windows and Doors, ensuring products meet rigorous standards such as ENERGY STAR and NFRC certifications.Backed by a Limited Lifetime Manufacturer's Warranty, our team prioritizes timely delivery, competitive pricing, and exceptional service to support both residential and commercial projects. As a Made in USA Certified manufacturer, we combine advanced technology with proven performance to deliver solutions that enhance comfort, reduce energy costs, and increase property value.
Services
Replacement Windows
Vinyl Windows
Patio Doors
Energy-Efficient Solutions
Custom Window Options
Highlights and features
- We offer ENERGY STAR certified windows that reduce energy bills by up to 30%.
- Our products feature fusion-welded vinyl frames for superior durability and insulation.
- We provide lifetime-limited warranties on all window and door systems.
- Our team delivers custom solutions tailored to meet specific architectural requirements.
- We maintain partnerships with industry-leading manufacturers like Slocomb Windows and Doors.
Associations and certifications
- ENERGY STAR
- NFRC Certified
- Made in USA Certified
Services
Replacement Windows
Our replacement windows feature double-paned glass and warm-edge technology to minimize heat transfer. These energy-efficient solutions reduce utility bills while maintaining indoor comfort. Custom-fitted designs ensure seamless installation without disturbing existing structures.
Vinyl Windows
Vinyl windows combine low maintenance with exceptional insulation properties. Available in multiple styles including double-hung and casement, our vinyl frames resist warping and never require painting. Optional woodgrain finishes mimic natural wood aesthetics.
Patio Doors
Our heavy-duty sliding patio doors offer smooth operation and enhanced security. Featuring fusion-welded frames and tempered glass, these doors maximize natural light while maintaining thermal efficiency. Optional multi-point locking systems provide added protection.
Energy-Efficient Solutions
ENERGY STAR certified products incorporate Low-E glass and argon gas fills to optimize thermal performance. These solutions qualify for utility rebates while reducing HVAC loads. Duralite spacer systems further minimize condensation risks.
Custom Window Options
Choose from various grid patterns, color finishes, and glass types to match architectural styles. Our customization extends to specialized shapes like bay and bow windows. All options maintain structural integrity and energy efficiency standards.
Questions
Do replacement windows really lower energy bills?
Yes, ENERGY STAR certified windows can reduce heating and cooling costs by up to 30% through improved insulation and reduced air leakage.
What warranty coverage do your windows include?
All products come with a transferable Limited Lifetime Manufacturer's Warranty covering both materials and workmanship for the product's lifespan.
How are replacement windows installed?
Our windows install directly into existing openings without disturbing interior or exterior finishes, minimizing mess and labor costs compared to standard window replacements.
Can vinyl windows withstand harsh weather?
Our vinyl windows feature fusion-welded frames and reinforced sashes to resist high winds while maintaining thermal efficiency through extreme temperature changes.
Do you offer window styles for different home designs?
We provide multiple styles including double-hung, casement, awning, and specialty shapes to complement both modern and traditional architectural designs.
