Window Replacement & Installation in New Jersey
Old windows have a way of telling on themselves: a draft you can feel, condensation fogging up the glass, an energy bill that keeps creeping higher. Botani Roofing & Siding is a licensed, insured window replacement and installation contractor working across New Jersey, backed by 25+ years in business, 1,132+ roofs completed, and 3,704+ homes served throughout Essex, Passaic, Morris, and Bergen counties.

Window Services in New Jersey
Different windows solve different problems, so here's how we match the window to the room.
Double-Hung Windows
Double-hung windows are the most common residential replacement for a reason: both sashes move, so cleaning the outside pane from inside your home is actually possible. They're a safe, familiar upgrade that fits almost any style of New Jersey home.
Casement Windows
Casement windows crank open instead of sliding, which gives you a tighter seal when closed and better airflow when you want it open. That tighter seal is exactly what helps cut down on the drafts older windows let through.
Bay & Bow Windows
Bay and bow windows push outward from the wall, adding real interior space and flooding a room with light from multiple angles. It's a more involved install than a standard window swap, so we plan the structural side carefully before any glass goes in.
Picture Windows
Picture windows are fixed in place, built purely for an unobstructed view, with no moving parts to eventually wear out or stop sealing properly. They're a great fit for a room where the view matters more than the ventilation.
Energy-Efficient Double-Pane Glass
This is the upgrade that actually solves the draft, condensation, and high-bill problem, no matter which window style you choose. Double-pane glass adds a real insulating layer, so the improvement shows up on your energy bill, not just on paper.
Specialized Solutions for New Jersey Properties
Colonial & Two-Story Homes
Colonials and other two-story homes usually mean more window openings overall, plus second-story access considerations we plan for before installation day. More windows also means more chances for drafts to sneak in if even one opening was installed wrong the first time.
Ranch & Single-Story Homes
Single-story ranches are easier to access, which often makes a full-home window replacement in one project more practical than doing a few windows at a time. It's usually the more efficient path, cost and timeline both considered.
Condos, HOAs & Townhome Communities
Condo and townhome communities usually need matching window style and color across shared building exteriors, so one unit doesn't stand out from the rest. We work within HOA guidelines to keep that consistency intact.
Commercial Buildings
Commercial buildings come with larger window systems and their own code and energy considerations. If you're near a busier road, the right glass can meaningfully cut down on outside noise too, on top of the energy savings.
Why Choose Us
25+
Years in Business
1,132+
Roofs Completed
3,704+
Homes Served
100%
Licensed & Insured
Window installs at Botani are handled by the same crews already doing our roofing and siding work, so flashing and sealing around each window opening stays with one team instead of getting handed off to a subcontractor, which is where most post-installation leaks actually start. That continuity is backed by 25+ years in business, and if a bigger project makes more sense to finance, we offer $0 down, 0% APR financing to make it work for your budget.
Our Process
Inspection
We start by walking through your home, checking each window's condition, seals, and frames before recommending anything.
Assessment & Measurement
Next, we measure every opening precisely, since a window that doesn't fit right undoes half the benefit before it's even installed.
Window Type & Glass Selection
You choose from double-hung, casement, bay, bow, or picture windows, along with double-pane and other energy-efficient glass options.
Installation or Replacement
Our crew handles the installation or full replacement on site, with the same care and attention we'd want in our own home.
Flashing & Weatherproofing Seal
This step is where most window leaks actually start if it's rushed, so we treat flashing and sealing as core to the job, not an afterthought.
Final Walkthrough & Follow-Up
We walk the finished install with you before we leave, and we're easy to reach afterward if anything needs a second look.
Emergency Window Services
A storm-cracked or broken window leaves your home exposed to weather and a real security risk almost immediately, so it's not something to wait on. Reach out through our emergency response team and we'll get out to secure the opening and stop further damage.
