Window Installation & Replacement Services in Central New Jersey

Upgrade Your Home With Windows That Work as Good as They Look

New windows do more than improve how your home looks — they impact your comfort, energy efficiency, and even your monthly utility bills. At K&H General Contractors, we install and replace high-performance windows that are custom-fit for your space and designed to last. We bring professional window solutions to homes across Central New Jersey, including the communities of Trenton, Princeton, East Windsor, Levittown, Bristol, Bordentown, and Pennington.

Whether you’re upgrading to modern vinyl windows or replacing old wood-framed glass, we’ll help you choose the right style, ensure a precise installation, and deliver results that improve both your view and your value.

Full-home window replacements

Energy-efficient and insulated window upgrades

Vinyl, fiberglass, and wood-framed windows

Sliding, double-hung, casement, and specialty shapes

Window repair and resealing

Free in-home consultations

How We Handle Your Window Project

Personal In-Home Consultation

We begin every project by learning about your space, your vision, and your goals. From increasing insulation to maximizing natural light, we want to know what matters most to you — and we tailor our recommendations accordingly.

Transparent, No-Pressure Estimates

We take accurate measurements and walk you through the best options for your home and budget. Every estimate includes pricing for materials, installation, and cleanup — so there are never hidden fees or surprises.

Help Selecting the Right Window Types

Not all windows are created equal. We help you compare frame materials, glass options, UV coatings, locking systems, and more so you can feel confident in your investment.

Scheduling That Works for You

Once you approve your quote, we set a timeline that respects your calendar. Our installers arrive on time and keep disruptions to a minimum, whether it’s a single room or an entire home’s worth of windows.

Expert Installation, Every Time

Our trained window installers follow best practices from start to finish — protecting your home, sealing every edge, and confirming each unit opens, closes, and locks exactly as it should.

Final Walkthrough & Support

Before we leave, we test every installed window and walk you through proper care and warranty info. We’re always available if you need service or have follow-up questions.

Why K&H Is a Smart Choice for Window Replacement

  • Service Across the Region

    From Bristol to Princeton and everywhere between, we serve homes throughout Central New Jersey with consistency and care.

  • Top-Tier Window Products

    We install only trusted, energy-efficient brands that meet or exceed local code and Energy Star standards.

  • Experienced Installers

    Our crews specialize in window installation — not just general construction. You’ll get tight fits, clean finishes, and zero shortcuts.

  • Customer-Focused Process

    We’re not interested in high-pressure sales. We’re here to educate, install, and make sure you’re thrilled with the result.

Don't worry, we can help!

Frequently Asked Questions – Windows

What type of windows do you install?

We install a variety of styles, including double-hung, sliding, casement, picture, bay, and more. We work with top brands and offer frames in vinyl, fiberglass, and wood depending on your style, climate, and budget.

How long does a typical window replacement take?

Most window replacements can be completed in a single day, depending on the number of windows and access points. Full-home installations may take a few days, but we always work efficiently and keep you informed.

Can you match the style of my current windows?

Absolutely. If you're replacing only a few windows or want to maintain your home’s original look, we’ll match frame color, grid patterns, and hardware wherever possible.

Are energy-efficient windows worth the investment?

Yes. Upgrading to energy-efficient windows can significantly reduce your heating and cooling costs, block UV damage to furniture and floors, and improve overall indoor comfort.

Do you offer warranties on your window installations?

Yes — our windows come with manufacturer warranties, and our labor is backed by our K&H workmanship guarantee. We’ll go over all terms before the project begins.

Let’s Bring More Light (and Value) Into Your Home

A home full of beautiful, functional windows changes the way you live — more comfort, more curb appeal, more savings. Whether you're in Trenton, Pennington, or East Windsor, we’d love to help you transform your space. Let’s start with a free consultation and show you the difference K&H can make.