Swap out windows that stopped doing their job a decade ago.
0% Financing For 72 Months
If your windows fog up, rattle, or let the cold straight in, we replace them with custom-sized, energy-efficient units. You get an in-person measurement, a written quote to think over, and our own crew doing the work.
- Factory-direct pricing on energy-efficient windows
- Insert or full-frame, chosen window by window
- Family-owned and local to North Jersey
Factory-direct pricing on energy-efficient windows
Call 973-755-1760
Ratings5.0
5.0Trusted Google Reviews
Get a free replacement estimate
Takes about 30 seconds. No obligation.
- 5.0 on Google 44+ homeowner reviews
- 0% for 72 months Financing on approved credit
- Factory-direct No middleman markup
- Our own installers Not subcontracted out
Window replacement that fixes the problem, not just the glass
Most windows we pull out of Morristown homes are somewhere between 20 and 60 years old. Single-pane units in the older houses off the Green, aluminum frames that sweat all winter, early vinyl with seals that gave up years ago. We look at each frame before recommending anything, because where the frame is sound an insert saves your interior trim, and where it has rotted or pulled out of square we go full-frame so the new unit seals properly from the start.
Schedule A Free MeasurementSigns your windows need replacing
- Condensation or fog between the panes
- Cold drafts you can feel with your hand
- Sashes that are painted shut, stick, or slam down
- Rot, soft spots, or peeling at the sill
- Single-pane glass or aluminum frames
- Rooms that never get comfortable in winter or summer
Checked two or more? Get a free estimate and we'll tell you honestly which windows need replacing and which can wait.
The right replacement for each opening
You don't have to replace every window the same way. We'll recommend a style and glass package for each room during your estimate.
Double-hung replacements
The most common swap. Both sashes tilt in for cleaning, and the look stays true to traditional homes.
Best for: colonials, capes, most bedrooms
Casement replacements
A crank-out window that seals tight against the frame. A strong upgrade where an old slider or double-hung leaks.
Best for: kitchens, hard-to-reach openings
Slider replacements
Replaces worn aluminum sliders with smooth-gliding, insulated frames that are easy to operate.
Best for: ranches, split-levels, wide openings
Bay and bow replacements
Rebuilds a sagging or drafty bay with new units, insulated seat and head boards, and proper support.
Best for: front living rooms, dining rooms
Energy-efficient glass
Double- or triple-pane insulated glass with low-E coatings to cut heat loss and block UV fading.
Best for: cold rooms, sun-facing walls
Basement replacements
Swaps rusted steel or rotted wood basement windows for tight-sealing hopper or slider units.
Best for: basements, finished lower levels
How your window replacement works
In-home measurement
We measure every opening, check each frame for rot or settling, and leave samples with you.
Written quote
An itemized price per window, in writing, for you to review on your own time. No same-day pressure.
Custom order
Each window is built to the exact size we measured, and install is scheduled when they arrive.
Remove, install, clean up
We pull the old units, fit and seal the replacements, trim them out, and haul everything away.
Replace your windows now. Pay over six years with no interest.
Old windows cost you every month in heating and cooling. Ask about financing during your estimate and we'll show you the monthly number next to the total.
- 0%
financing for 72 months
On approved credit. Ask for full terms.
Why homeowners here replace with a local company
| Feature | The Window Source | Typical big-box or national chain |
|---|---|---|
| Who measures your windows | The same team that installs them | A salesperson or third-party measurer |
| Insert vs. full-frame | Decided per window after inspection | One method for the whole house |
| Pricing | Factory-direct, written quote | List price, then a "today only" discount |
| Who installs | Our own crew | Often subcontracted |
| Old windows | Removed and hauled away | Sometimes an extra charge |
Window replacement projects near Morristown
On the job
FinishedDouble-hung replacements
Tilt-in sashes with grids to suit the house
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On the job
FinishedPicture windows
Large fixed glass for the best view of the yard
On the job
FinishedExterior trim and finish
Sealed and trimmed so the outside looks finished too
What your neighbors say
5.0 average from 44+ Google reviews
- Tyler Wadhams Google review
Window Source did a fantastic job replacing the windows in our house. We upgraded from double pane to triple pane because we were looking for sound reduction and better energy efficiency, and the difference is already noticeable. Everyone was very professional and the install was clean and well done. Highly recommend using The Window Source for any window needs.
- Joan Chambers Google review
Really successful start to finish window replacement experience. From first sales consultation, ordering and then installation. Efficient and great customer service and team work from everyone working in our home. Very pleased with our choice of The Window Source of Northern New Jersey.
- Chris Deska Google review
Clean and precise work done by the crew at my home in Ringwood. They replaced my windows and it was a very easy experience from start to finish. Highly recommended.
What to know about replacing windows in Morristown
Older homes and lead paint
Plenty of houses around the Green and the older streets off it predate 1978, which means lead paint on the window trim is a real possibility. Federal rules require lead-safe practices when it is disturbed, and we follow them.
Keeping the look of the house
Grid patterns, sightlines and exterior color all matter on a Morristown colonial or Victorian. We match what is already there so the house still reads the way it should from the street.
Replaced for Morris County winters
Freeze-thaw cycles and humid summers are hard on seals and frames. We recommend glass packages and frame materials rated for the swings this part of the state actually sees.
Window replacement questions
Fog between the panes, rotted frames, and drafts around the sash usually mean replacement. A sticky sash or a bad lock can often be repaired. We'll tell you which is which during the estimate.
An insert fits a new window inside your existing frame, which is faster and keeps interior trim intact. Full-frame replacement removes everything down to the rough opening and is the right call when frames are rotted or out of square.
Replacing single-pane or leaky windows with insulated, low-E glass reduces drafts and heat loss. How much you save depends on your home, your current windows, and how you heat and cool it.
Most homes are done in one to two days once the windows arrive. Larger homes or full-frame replacements can take longer, and we'll give you a timeline with your quote.
No. Many homeowners start with the worst rooms and do the rest later. We can quote the whole house and phase it.
Yes. We work one opening at a time so each room is only open briefly, and we seal it up before moving on.
Have a different question? Call 973-755-1760 or send us a message.
See what replacing your windows would cost
We'll measure, check every frame, and leave you with a written quote. No pressure, no obligation.
