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Energy efficient picture window replacement installed on a residential home in New Providence, NJ, improving natural light, insulation, and overall comfort
Window replacement completed due to gaps and air leaks on a residential home in Lake Hopatcong, NJ, improving energy efficiency and weather sealing

Expert Window Replacement in Union County, NJ

Energy-Efficient Replacement Windows Installed for New Jersey Homes

At Hill Top Construction Solutions, we provide professional window replacement services for homeowners across Union County, NJ. Our replacement windows are designed to reduce drafts, improve energy efficiency, and enhance curb appeal—while performing reliably in New Jersey’s changing climate. We focus on precise installation, durable materials, and long-term comfort, not shortcuts or sales pressure.

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What You’ll Gain With Professionally Installed Replacement Windows

White ProVia triple pane window installation featuring double hung, casement, and picture windows installed in Kenilworth, NJ by Hill Top Construction Solutions for superior energy efficiency

30% Energy Savings

Energy-efficient window systems reducing drafts and heat transfer, helping homeowners lower heating and cooling costs while improving year-round comfort.

Black ProVia Endure Series vinyl window installation completed by Hill Top Construction Solutions on a residential home in Berkeley Heights, NJ, improving energy efficiency and curb appeal

Colors That Stick

Durable exterior finishes resist sun damage, keeping your windows looking clean and consistent for years.

ProVia Endure double hung vinyl window installed by Hill Top Construction Solutions on a residential home in Summit, NJ, improving energy efficiency and interior comfort

Built to Last

Reinforced frames and precision components deliver smooth operation, durability, and long-term reliability.

Professional Window Replacement Built for New Jersey’s Climate

From freezing winters to hot, humid summers, windows play a major role in comfort, energy costs, and moisture control. Our window replacement services are engineered specifically for Union County homes, focusing on airtight installation, proper flashing, and insulation—so your windows perform as intended year after year.

Our team has installed replacement windows in hundreds of Union County homes, from older drafty houses to newer residential builds requiring precision flashing and air sealing.

Our Proven Window Replacement Process

1. On-Site Window & Opening Inspection

We inspect existing windows, framing, flashing, and surrounding wall conditions to identify drafts, moisture risks, and structural concerns before installation begins.

2. Design & Performance Consultation

We help you select window styles, frame materials, and performance ratings that match your home’s needs, budget, and New Jersey climate conditions.

3. Precision Installation & Sealing

Every window is installed using manufacturer-approved methods, including proper flashing, insulation, and air sealing to ensure long-term performance.

4. Final Walkthrough & Cleanup

We review operation, maintenance, and warranty coverage, followed by a full cleanup to leave your home protected and polished.

Schedule Your Free Window Replacement Consultation. CLICK HERE

Black ProVia casement window replacement installed on a residential home in Lake Hopatcong, NJ by Hill Top Construction Solutions, improving energy efficiency and curb appeal

U-Factor: Critical Insulation Performance for New Jersey Windows

Lower U-Factor values reduce heat loss during cold NJ winters and improve overall insulation.

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Key Window Performance Ratings for New Jersey Homes

Not all windows perform the same—especially in New Jersey’s mixed climate. We guide homeowners through the performance ratings that directly affect comfort, energy efficiency, and durability.

Solar Heat Gain Coefficient (SHGC)

Controls how much solar heat enters your home—critical for managing summer heat and cooling costs.

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Visible Transmittance (VT)

Balances natural daylight with glare and heat control for bright, comfortable interiors.

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Replacement Window Options for Union County Homes

  • Vinyl Windows – Affordable, low maintenance, strong insulation

  • Fiberglass / Composite Windows – Stable in temperature swings, long lifespan

  • Wood-Clad Windows – Classic interior appearance with durable exterior protection

We install climate-ready window systems from trusted manufacturers, selected to perform in New Jersey conditions.

Get My Free Window Quote - Fast Response • Local Expertise • 0% Financing Available

Air Infiltration: Preventing Drafts in New Jersey Windows

Measures how much outside air passes through the window. Lower ratings mean fewer drafts and better energy efficiency.

Expert Note:
Proper installation is just as important as window ratings. Even high-performance windows will underperform if flashing, insulation, and air sealing are done incorrectly.

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Why Professional Window Installation Matters in New Jersey

Improper installation can lead to drafts, leaks, condensation, and mold—especially during NJ’s freeze-thaw cycles. Our certified installation process ensures your windows perform as designed and remain fully protected under manufacturer warranties.

Helpful Window Replacement Resources

  • Will new windows increase my home’s value in Union County, NJ?

  • Repair vs. replace: how do I know if my windows are beyond repair?

  • Which window performance ratings matter most for New Jersey homes?

  • How long do replacement windows typically last in New Jersey’s climate?

  • How much does window replacement cost in Union County and surrounding areas?

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Schedule Your Free Window Replacement Quote

Drafty or outdated windows can raise energy bills and reduce comfort. Contact Hill Top Construction Solutions today for a pressure-free window replacement consultation and a clear plan built for your home and New Jersey’s climate.

Get My Free Quote Today Or call us directly at (551) 273-9687

Proudly Serving Union County, NJ

We provide window replacement services throughout Union County throughout Union County, including Summit, Cranford, New Providence, Berkeley Heights, Union, Westfield, and surrounding communities.

Additional New Jersey Areas We Serve

  • Morris County

  • Middlesex County

  • Somerset County

  • Monmouth County 

  • Hunterdon County

Our Reviews

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