Windows and Doors

Improve comfort, curb appeal, security, and energy efficiency with professionally installed windows and doors.

Experience

10+ Years in Business

Ownership

Veteran Owned

Reputation

A+ BBB Rating

Better Windows and Doors Make a Real Difference

New windows and doors can improve how your property looks, feels, and performs. They can also help your monthly electric bill calm down a little. Black Lion Construction installs replacement windows, entry doors, sliding glass doors, patio doors, custom trim, and energy-efficient upgrades for homes and commercial properties.
Whether you want to update the exterior appearance of your property, improve insulation, replace worn doors, or make the space feel more comfortable and secure, our team helps you choose options that fit your style, budget, and long-term needs.Proper installation matters. We focus on careful measurements, clean fit, strong sealing, trim details, and workmanship that helps your windows and doors perform the way they should.
From structural modifications and open floor plan changes to kitchens, bathrooms, flooring, trim work, lighting, custom carpentry, and interior finishes, our team coordinates each phase of the remodel with clear communication and careful attention to detail.

Based in Newark, DE

Serving Delaware, Pennsylvania & New Jersey

Custom Cabinetry

Lighting & Flooring

Countertops

Kitchen Remodeling

What’s Included in Your Windows and Doors Project

Windows and doors are not just exterior updates. They affect comfort, energy use, security, curb appeal, natural light, and how well your property holds up over time.

Replacement Windows

Replace outdated, damaged, drafty, or inefficient windows with new options built for better comfort, appearance, and performance.

Entry Doors

Upgrade your front door, side door, or main entrance with a door that improves security, curb appeal, and daily use.

Custom Trim Work

Finish the installation with clean interior and exterior trim details that match the style of your property.

Energy-Efficient Upgrades

Improve insulation and comfort with window and door options designed to reduce drafts and support better energy performance.

Proper Installation & Sealing

Make sure each window and door is measured, fitted, sealed, and finished correctly for long-term use.

Sliding Glass Doors & Patio Doors

Improve access to decks, patios, backyards, and outdoor living areas with properly installed sliding or patio doors.

Window and Door Updates for Homes and Commercial Spaces

Whether you need a single replacement or a larger property upgrade, Black Lion Construction helps plan and complete the work with careful installation and clean finish details.

Home Window Replacement

Update old or inefficient windows to improve comfort, appearance, natural light, and energy performance.

Exterior Door Replacement

Replace worn or outdated doors with options that improve security, appearance, and everyday use.

Patio and Backyard Access

Add or replace sliding glass doors and patio doors for better connection to outdoor spaces.

Commercial Window and Door Updates

Improve entrances, access points, storefront areas, office spaces, or other commercial openings with durable window and door solutions.

Built for Comfort, Security, and Curb Appeal

A good window or door installation should do more than look better on day one. It should improve comfort, protect the property, and hold up with regular use.

Better Energy Efficiency

Reduce drafts and improve insulation with properly selected and installed windows and doors.

Improved Comfort

Help rooms feel more comfortable by addressing air leaks, old frames, worn seals, and poor-performing openings.

Stronger Security

Upgrade doors, locks, glass, and entry points to help your property feel more secure.

Better Curb Appeal

Improve the look of your home or commercial property with updated windows, doors, trim, and exterior details.

More Natural Light

Bring more light into the space with window and door options that fit the room and property style.

Long-Term Performance

Get a cleaner fit, better sealing, and proper installation details that help products last and perform over time.

Related Windows and Doors Projects

See completed window and door projects by Black Lion Construction, including replacement windows, entry doors, patio doors, sliding glass doors, trim work, and exterior upgrades.

How Your Windows & Doors Project Comes Together

A successful window or door project needs accurate measurements, the right product choices, proper installation, and careful finishing.

01 Consultation

We discuss your current windows or doors, project goals, budget, style preferences, and any comfort, security, or energy concerns.

02 Planning & Estimate

We review the scope, measurements, product needs, material options, labor, timeline, and estimated cost range.

03 Design & Selections

We help plan window styles, door types, glass options, trim details, hardware, finishes, and related installation needs.

04 Scheduling & Preparation

We coordinate scheduling, product ordering, site preparation, and project logistics before installation begins.

05 Construction Phase

Our team installs the windows or doors with careful fitting, sealing, fastening, trim work, and attention to detail.

06 Final Walkthrough

We review the completed installation with you and make sure the important details are finished properly.

07 Project Completion

Your window or door project is completed with a focus on comfort, security, appearance, and long-term performance.

Windows & Doors Services in Newark, Delaware

Black Lion Construction helps homeowners and businesses in Newark, Delaware, and nearby areas update windows and doors for better comfort, curb appeal, energy efficiency, and security. From replacement windows and entry doors to sliding glass doors, patio doors, custom trim work, and energy-efficient upgrades, our team completes each installation with careful measurements, proper sealing, and quality workmanship.

10+ Years

Of Expertise

Veteran

Owned Business

A+

BBB Rating

Windows & Doors FAQs

01. How much does window or door replacement cost?

Window and door replacement costs depend on the number of units, product type, size, material, trim work, installation needs, hardware, glass options, and project scope.

02. Do you install replacement windows?

Yes. Black Lion Construction installs replacement windows for homes and commercial properties, including updates for comfort, appearance, energy efficiency, and performance.

03. Can you replace entry doors?

Yes. The team can replace front doors, side doors, exterior doors, and other entry doors with options that improve security, curb appeal, and everyday use.

04. Do you install sliding glass doors and patio doors?

Yes. Window and door projects can include sliding glass doors, patio doors, backyard access doors, and related trim and finish details.

05. Can new windows and doors improve energy efficiency?

Yes. New windows and doors can help reduce drafts, improve insulation, and support better comfort when properly selected and installed.

06. Do you handle custom trim work?

Yes. The team can complete custom trim work around windows and doors to help the finished installation look clean and match the property.

07. Can you help me choose the right window or door style?

Yes. Black Lion Construction can help review options based on your property style, budget, energy needs, security concerns, and design preferences.

08. How does the windows and doors process start?

It starts with a consultation where we review your current windows or doors, goals, budget, measurements, style preferences, and installation needs.

09. Do you offer estimates for windows and doors?

Yes. Once the scope is understood, Black Lion Construction prepares a clear estimate based on product needs, labor, materials, installation details, timeline, and project expectations.