Replacement Windows in Trenton, NJ

Trenton’s housing stock is older than almost any city in New Jersey, over half the homes were built before 1939, and the historic rowhomes of Mill Hill, Berkeley Square, and Glen Afton still have the original wood sash to prove it. Replacing those windows isn’t just an aesthetic choice. It’s a measurable jump in winter comfort and a 12% to 25% drop in heating costs.

Thompson Creek manufactures replacement windows in Maryland and installs them throughout Trenton and Mercer County, backed by a 50-Year No-Hassle Warranty.

Custom Replacement Windows Built for Trenton Homes

Thompson Creek installs custom-manufactured replacement windows throughout Trenton, NJ, including Mill Hill, Berkeley Square, Hiltonia, Glen Afton, and surrounding Mercer County neighborhoods. Every window is Maryland-made, built to NJ’s 2021 IECC code thresholds, sized to historic Trenton rowhome openings, and protected by a 50-Year No-Hassle Warranty.

Engineered for New Jersey’s Climate and Energy Code

Trenton sits in IECC Climate Zone 4, and New Jersey adopted the 2021 IECC in September 2023, one of the more aggressive state energy codes on the East Coast. Replacement windows must hit U-factor 0.30 or lower and SHGC 0.40 or lower under the current code.

Our standard double-pane vinyl windows come in at U-factor 0.28, already below code minimum, with headroom for the 2024 code amendments expected to push the threshold to 0.27.

Sized for Historic Rowhome Openings

Over 52% of Trenton homes were built before 1939, per the most recent American Community Survey. That means non-standard rough openings, often 24″, 26″, 28″, and 30″ widths that don’t match any off-the-shelf window.

Every Thompson Creek window is custom-built to your exact opening. No filler strips, no compromised seals, no awkward visual proportions on a historic rowhome facade.

Why Trenton Homeowners Choose Thompson Creek

We Manufacture What We Install

Our windows are made at our Upper Marlboro, MD facility, about 130 miles from Trenton. Vertical integration means lower price for the same quality, and one warranty contact instead of three.

Historic District Experience

Trenton has multiple locally-designated historic districts, including Mill Hill, Berkeley Square, and portions of South Trenton. Replacement windows in these districts often require Historic Preservation Commission review.

We work with the Trenton Historic Preservation Commission to get in-kind replacement approvals, and we offer simulated divided lite (SDL) grid options that satisfy most preservation requirements.

Across the Mid-Atlantic, Over 20,000 Five-Star Reviews

We’ve installed windows across NJ, DE, MD, VA, DC, and PA since 1980. Our 4.5+ star rating across more than 20,000 customer reviews reflects what we actually deliver, not what we advertise.

Our Trenton Window Replacement Process

Step 1, In-Home Consultation

A Thompson Creek consultant visits your Trenton home, measures every opening, and walks you through frame and glass options that fit your home and budget. Free, no obligation, no high-pressure tactics.

For historic district homes, we discuss simulated divided lite, true divided lite, and historic profile options.

Step 2, Custom Manufacturing

Once your order is confirmed, our Maryland factory builds your windows to the exact dimensions of your Trenton home. Lead time: 4 to 6 weeks for standard products, 6 to 8 weeks for historic-profile orders.

Step 3, Single-Day Installation

Most Trenton rowhome replacements are completed in one day for projects up to 12 windows. Larger projects or homes with stained-glass transoms may extend to two days.

Our installers are Thompson Creek W-2 employees, never subcontractors.

Trenton Neighborhoods We Serve

We install replacement windows throughout Trenton and the wider Mercer County area, including:

• Trenton historic districts: Mill Hill, Berkeley Square, Glen Afton, Hiltonia
• Trenton residential: Chambersburg, South Trenton, West Trenton, North Trenton, Wilbur Section
• Mercer County: Ewing, Lawrenceville, Hamilton Square, Hopewell, Princeton, Princeton Junction, Pennington
• Burlington County border: Bordentown, Florence, Roebling

ZIP codes served: 08608, 08609, 08610, 08611, 08618, 08619, 08628, 08629, 08638, 08648, 08690, 08691.

Frequently Asked Questions About Window Replacement in Trenton, NJ

Do you need a permit to replace windows in Trenton, NJ?

Yes, New Jersey requires a Uniform Construction Code (UCC) building permit for window replacement, even for in-kind swaps. In Trenton, permits are issued by the Department of Inspections at City Hall.

If your home is in a designated historic district (Mill Hill, Berkeley Square, etc.), you’ll also need approval from the Trenton Historic Preservation Commission before the building permit is issued. Thompson Creek handles both steps.

Will replacement windows work in a historic Trenton rowhome?

Yes, historic districts permit in-kind window replacement when the new windows match the original profile, grid pattern, and proportion. We offer historic-profile vinyl with simulated divided lite grids that satisfy most Trenton Historic Preservation Commission requirements.

For true divided lite (TDL) requirements, we offer that as an upgrade option on custom orders.

How long does the full process take from quote to installed windows?

For standard replacements, plan on 6 to 8 weeks from signed contract to installed windows: 4 to 6 weeks for custom manufacturing plus scheduling and the installation day itself. Historic-profile orders add 2 weeks for the specialty production line.

Permit processing in Trenton typically takes 2 to 4 weeks, but we submit early so it runs in parallel with manufacturing.