JAB Exteriors installs premium energy-efficient replacement windows across New Castle County — helping homeowners cut utility bills, reduce noise, and improve comfort year-round.
New Castle County homeowners trust JAB Exteriors for professional window installation that makes a real difference. We supply and install energy-efficient replacement windows from leading manufacturers, with styles and glass packages matched to your home's architecture and your family's comfort goals. From single-room upgrades to whole-home replacements, our team serves New Castle County, DE with expert installation and a process designed to minimize disruption.
Every project includes a free in-home assessment, transparent pricing, and installation typically completed in a single day.
Our window packages include Energy Star certified glass options that reduce heat transfer, lower HVAC costs, and improve year-round comfort.
Most window replacements are completed in a single day with minimal disruption to your home and daily routine.
Free in-home consultations, detailed written quotes, and a single point of contact from selection through installation. Zero hidden fees.
We install double-pane and triple-pane windows with Low-E glass coatings, argon gas fills, and warm-edge spacers. These features dramatically reduce heat loss in winter and heat gain in summer, lowering your utility bills year-round.
Most single-room to whole-home window replacements are completed in one day. Larger projects or custom orders may take two days. We confirm your timeline before scheduling so there are no surprises.
Yes. Replacement windows typically return 68–78% of cost at resale and are a top-rated home improvement for buyer appeal. Energy-efficient windows are especially attractive in the Mid-Atlantic market where utility costs are a concern.
If your windows are drafty, difficult to open, fogged between panes, or more than 20 years old, replacement is usually the better investment. Repairs can extend life short-term but rarely address underlying energy performance issues.
We work with leading manufacturers including Pella, Andersen, and other premium brands. During your free consultation, we'll recommend the right product line for your budget, home style, and performance goals.
Most like-for-like window replacements (same size opening) do not require a permit. If structural changes are involved or you're in a historic district, permits may apply. We handle all permit research and filing as part of our service.
Free estimate · No pressure · Lifetime warranty
Complete exterior solutions for your home.
We proudly serve the surrounding Tri-State region.
