Window replacement in New Jersey

Herts Roofing & Construction replaces windows on homes across New Jersey. We measure every opening, install the windows level and square, and flash and seal them so drafts and water stay out. We are an EPA Lead-Safe certified firm for older homes, and we compare energy ratings with you so you know what you are paying for.

4.9★126 Google reviews
EPALead-safe firm
FreeMeasure & quote
15 yrWorkmanship warranty

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Tell us what you need and we will set up a free inspection, take photos and give you a written price. No pressure and no obligation.

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Signs it is time for new windows

Drafts you can feel, condensation or fog between the panes, windows that stick or will not stay open, rotted sills and frames, and high heating and cooling bills all point to windows that are no longer sealing.

What we install

Double-hungCasementSlidersPicture windowsBay & bowBasement windows
  1. Measure every openingWe measure each window and check the frames and sills for rot.
  2. Compare options and ratingsWe go over styles, glass and the NFRC energy label so you can compare apples to apples.
  3. Install, flash and sealWindows are installed level and square, flashed, insulated and sealed, with trim finished inside and out.
Before you hire

What to know about window ratings

Every quality window carries an NFRC label. The U-factor tells you how well it keeps heat in (lower is better), and the solar heat gain number tells you how much sun heat it lets through.

Homes built before 1978 may have lead paint on window frames. As an EPA Lead-Safe certified firm we follow lead-safe practices when we remove old windows.

How Herts handles windows

Windows are often best done with siding, so the flashing and trim tie in together. We can do both in one project. Book a free inspection.

Recent projects by Herts Roofing & Construction

Our latest finished jobs, straight from the crew.

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What customers say

“Jimmy was our rep and I couldn't speak more highly of Jimmy and the Herts team. Customer service was a 10/10 as well as the job.”

Jake L. · Google review

“My roof looks great. It was hard to find a good reputable company. Your process was seamless and to the point.”

Angelica J. · Google review

“Punctual, professional, and communicated clearly throughout the process.”

Jaden · Google review

Window questions

How long does window installation take?

It depends on how many windows you are replacing and whether any frames need repair. We give you a timeline in the estimate.

Replacement or new-construction windows?

If the existing frames are solid, replacement windows fit inside them with less disruption. If the frames are rotted, full-frame or new-construction windows are the better fix. We check each opening and recommend what fits.

Are your estimates free?

Yes. We come out, look at the job, take photos and give you a written price. There is no charge and no pressure.

Do you offer financing?

Yes. Financing is available on larger projects. Ask about it at your estimate and we will send you the options.

Towns we serve

We work across Union County and North and Central Jersey, plus the Lehigh Valley in Pennsylvania.

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