Window & Door Installation in New Jersey
Installed Right the First Time, Sealed Tight and Cleaned Up
Our licensed, insured team installs every window and door we sell. Installation is included in every quote.
- Installation included
- Old windows and doors removed
- Flashed, insulated and sealed
- Clean-up inside and out
- 25-year window / 15-year door warranty
- HIC reg.# 13VH11201500
Expert Window and Door Installers in New Jersey
Our installers fit every window and door we sell. Here is what each installation includes.
- Free in-home measureEvery opening measured on site
- Old units removedTaken out with care, opening prepared
- Flashed and sealedFlashing, insulation and caulk stop drafts and water
- Level, plumb and squareChecked before we finish
- Clean-up inside and outYour home left the way we found it
- Warranty and follow-up25 years on windows, 15 on doors
New Windows Installation
New windows bring back comfort, light and energy savings. We fit standard, large and brand-new openings.

Regular Window Installation
A replacement window fitted to your existing opening, sealed tight and finished inside.
How our installers do it
- Prepare the opening. We clean the frame and check that the sill is level, with no bowing. Shims correct any gap.
- Flash the sill. Flashing tape across the sill and up the sides stops water before it reaches the wall.
- Dry-fit the window. We test the fit and leave a small even gap around the frame.
- Set and fasten. Beads of caulk on the sill, top and stops, then the window goes in and is fastened through the frame.
- Check and adjust. A level check on the frame and sashes. Extra shims where the rails meet.
- Seal and finish. Exterior flashing, foam sealant in the gaps and caulk on the interior trim.

Bay/Bow & Large Window
Bay, bow and large picture windows that fill your room with light, with the support they need.
How our installers do it
Most bay and bow windows are custom. When a flat window becomes a bay or bow, we add the right support: hidden cables, knee braces or brackets. Correct support and sealing prevent heat loss, air leaks, water damage and mold.

Wall Cutouts for New Windows
A new window where there was none. We assess the wall first and plan the opening with you.
How our installers do it
- Measure twice. We mark the opening from inside and outside before any cut.
- Cut the opening. We remove drywall and siding and make room for the header and frame.
- Frame it. A new header and studs carry the load. The sill slopes so water drains out.
- Set the window. The window goes in on its nailing fin or flange, flashed against moisture.
- Finish. We close the wall, trim inside and out, and clean up.
New Front Entrance Door Installation
A new front door improves curb appeal, security and energy efficiency. We install the door, the frame and the hardware.

Single Entry Door
A clean, elegant entrance that fits where space is tight.
How our installers do it
- Measure. Height, width and depth of the opening.
- Remove the old door. Door, hinges and frame come out.
- Install the new frame. Level and secured to the manufacturer's instructions.
- Hang the door. Set level and plumb, shimmed for a perfect fit.
- Fit the hardware. Hinges, handle and lockset.
- Insulate and seal. Weatherstripping and caulk stop drafts.

Double Entry Door
A grand, wider entrance with more room to move furniture in and out.
How our installers do it
Double doors come in the same materials and options as our single doors. Not sure which door fits your home? Ask during your free visit. We bring samples.
New Patio Door Installation
A well-installed patio door opens to your yard without leaks or drafts and glides with two fingers.

Custom Size Patio Doors
Made to match your exact opening and the style of your home.
How our installers do it
- Check the opening. A level sill and a header strong enough for the load above, with no rot.
- Measure at three points. Width and height at three points. We order to the smallest.
- Flash the sill. Flashing at least six inches up each side stops water and mold.
- Shim. Flat shims behind every screw keep the frame level and plumb.
- Fasten. Screws through every pre-drilled hole in the jambs and head, to the manufacturer's spec.
- Test. The door must glide open and shut with the force of two fingers.

Convert Window to a Patio Door
Turn a window into a door for more light and an easy step outside.
How our installers do it
We plan the new opening, frame it to carry the load and install the door with full flashing and sealing. Ask for a quote during your free visit.
Post-Installation Services
Our work does not stop when the last window goes in.
Quality Assurance
We work with you from the first visit to the final check, and we inspect every detail before we leave.
Follow-up Service
Check-ups, maintenance and replacement parts keep your windows and doors working for years. When you call, we act fast.

Why Choose Factory Direct?
A poor installation costs more to fix than to do right. We schedule around you and keep you updated at every step.
Installed right
No repair bills from a poor job later.
Fast and efficient
Trained installers with the right tools.
No more drafts
Exterior caulking and interior insulation on every unit.
Built to last
Correct installation keeps your home beautiful for years.
Homeowners Love How Clean We Leave Their Homes
Real reviews from New Jersey customers after installation day.
“Zak arrived promptly & provided a reasonable quote. So reasonable we had an additional window replaced. His team was prompt, professional & did a WONDERFUL JOB. They cleaned up inside & out.”
“Replaced two windows. They were easy to deal with and responded promptly to our question during the process. Very professional and did a nice job installing and cleaning up afterwards.”
“What a terrific experience, excellent pricing and top notch installation. Can’t say enough praise for Willy and his son.”
Window and Door Installation Questions
Short answers from our New Jersey team. See every step we offer on our services page.
Is installation included in the price?
Yes. Every quote from Factory Direct includes professional installation. The price you see in your written quote is the price for the windows or doors, installed.
Do you remove my old windows and doors?
Yes. Our team takes out the old windows or doors, prepares the opening, installs the new units and cleans up inside and out.
How do you stop drafts and leaks?
We flash every sill, insulate the gaps with foam sealant and caulk the exterior. Each window and door is checked for level and plumb before we finish.
Can you install a window where there is none?
Yes. We assess the wall, frame a new opening with a proper header and sloped sill, and install the window with full flashing. We plan it with you first.
Can you turn a window into a patio door?
Yes. We plan the new opening, frame it to carry the load above and install a custom-size patio door, sealed against water and drafts.
Do you install bay and bow windows?
Yes. Most bay and bow windows are custom. When a flat window becomes a bay or bow, we add the support it needs, such as cables, knee braces or brackets.
What warranty do I get?
Windows come with a 25-year transferable warranty. Doors come with a 15-year warranty. We also offer follow-up service, maintenance and replacement parts.
Are your installers licensed and insured?
Factory Direct Windows and Doors is licensed and fully insured in New Jersey, HIC reg.# 13VH11201500, with an A+ rating from the BBB.
See finished jobs in our project gallery, or contact us to book your free in-home estimate.




