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Windows & Doors · Window ReplacementWindow Replacement in New Jersey
Replacing drafty, damaged or hard-to-operate windows, with careful attention to the opening, flashing, sealing and the trim that ties it all together.
NJ HIC #13VH12036000 | Serving homeowners across New Jersey from East Rutherford
- Free inspection & estimateNo-cost first visit
- NJ HIC #13VH12036000Registered Home Improvement Contractor
- East Rutherford headquarters168 Humboldt St
- Convenient online schedulingRequest online, then pick a time
When window replacement makes sense
Windows do more than let in light. They are part of the building envelope, and an old or poorly sealed window can let in drafts, air leaks and water. Window replacement removes the existing sash or full unit and installs a new window sized and sealed for the opening.
Homeowners typically consider replacement when windows are drafty, hard to open or lock, fogged between the panes, or when frames and sills show rot or water damage. Replacement is also common during siding or exterior trim projects, when the openings are already exposed.
We start by looking at the existing windows and the condition of the frames, sills and surrounding wall. We measure each opening, talk through style and material options, and explain whether an insert replacement or a full-frame replacement fits the situation.
Why the installation details matter
A well-made window can still leak if it is not flashed and sealed correctly. The way the new unit is set, shimmed, insulated, flashed and trimmed has a lot to do with how it performs over time.
Common window problems
Signs that a window may need repair or replacement.
Drafts
Air moving around the sash or frame, often from worn weatherstripping or failed seals.
Condensation between panes
Fogging inside a double-pane unit usually means the seal has failed.
Damaged frames
Rot, cracks or soft spots in frames and sills, often from long-term moisture.
Poor operation
Windows that stick, will not stay open, or do not lock securely.
Water intrusion
Staining or peeling paint around the window that points to leaks.
Uncomfortable rooms
Rooms near older windows that feel noticeably colder or hotter.
Window repair or window replacement?
Not every window problem requires a new window. We explain the options for each opening.
Conditions that may favor repair
- Worn weatherstripping or sealant
- Broken hardware, locks or balances
- Minor, localized trim damage
- Frame and sill structurally sound
Conditions that may favor replacement
- Fogged glass from failed insulated-glass seals
- Rotted or warped frames and sills
- Windows that will not operate safely
- Several windows with similar age-related problems
Factors that affect the decision
The condition of the frame and sill, the type of window, how many windows are affected, your budget and whether other exterior work (like siding) is planned.
When further investigation is needed
Water damage around a window can extend into the wall framing. If we see signs of that, we explain what further investigation is needed before setting the final scope.
How window replacement works
Request
Send the form with photos of the windows, or call or text us.
Evaluate
We look at each window, the frames, sills and surrounding wall.
Measure & options
We measure the openings and review styles and materials with you.
Estimate
You receive a written scope and estimate to review.
Install
Approved windows are installed, flashed, sealed and trimmed.
Review
We walk through the finished work and operation with you.
Lead times for windows depend on the product and supplier. We confirm timing when you approve the estimate.
Window materials and options
Options depend on the style of your home, the opening and your priorities. We discuss what fits.
Frame materials
Common choices include vinyl, wood and composite frames, each with different maintenance and appearance.
Glass packages
Insulated glass units, low-E coatings and gas fills affect comfort and energy performance.
Flashing & sealing
Properly integrated flashing and sealant help keep water out of the wall around the window.
Hardware & styles
Double-hung, casement, sliding and picture windows, with locks and hardware to match.
What Our Customers Say
We have not yet received Google reviews about window replacement specifically. These are genuine Google reviews about our work in general; the first mentions attic window work.
Excerpt“Matt is just great …hard working, honest, sincere and keeps you informed every step of the way. … I recommend Monarch 100% for any roofing and attic window work.”
Excerpt“He is very responsive to phone calls and text messages, his pricing is great, his work is excellent and he leaves the job clean!!”
Excerpt“From the original estimate a few weeks ago to getting the job scheduled, to completing the job today, it was seamless, reasonably priced, and professionally done. He was happy to answer all my questions along the way.”
Quoted from our Google Business Profile. Rating and count as of October 28, 2026.
Window replacement across New Jersey
We serve homeowners statewide from our East Rutherford headquarters. Find your county or browse all the towns we serve.
Headquarters
168 Humboldt St, East Rutherford, NJ 07073
(551) 241-0470 · monarchroofingnj@gmail.com
Service availability can vary by location and schedule. See all service areas.
Window replacement FAQs
How do you measure for replacement windows?
We measure each opening during the evaluation. Exact measurements matter because replacement windows are typically made to size.
What is the difference between insert and full-frame replacement?
An insert replacement fits a new unit into the existing frame. A full-frame replacement removes the old frame down to the rough opening. The right choice depends on frame condition and your goals.
Do I need to replace all my windows at once?
No. Many homeowners replace the windows with the most problems first. We can help you prioritize.
Can fogged glass be fixed without replacing the window?
Fogging usually means the insulated-glass seal has failed. Depending on the window, the glass unit or the whole window may need replacing; we explain the options.
Will new windows lower my energy bills?
Glass packages, low-E coatings and good installation can improve comfort. Actual savings depend on many factors, so we do not promise specific numbers.
What do U-factor and SHGC mean?
U-factor measures how well a window insulates; lower is better. SHGC (solar heat gain coefficient) measures how much solar heat passes through. Both appear on product labels.
Do you replace exterior trim around the window?
Yes. Deteriorated trim and sills are often addressed as part of the project, and we look at how water is managed around the opening.
Is the estimate free?
Yes. Window evaluations and estimates are free.
Related exterior services
Also see: Window Installation, Exterior Door Replacement, Window & Door Exterior Trim, Energy-Efficient Windows.
Request Your Free Window Estimate
Tell us about your project, upload photos if available, and choose your preferred inspection date and time.
Please note: preferred dates and times are requests until your booking is confirmed.
Prefer to talk? Call or text (551) 241-0470 or email monarchroofingnj@gmail.com.
Need Window Replacement in New Jersey?
Tell us which windows are giving you trouble, upload a few photos, and we will start with a free evaluation and estimate.