Windows Create an Entrance You'll Be Proud to Come Home To

Window Services in NW Bergen County

Name: PJ Sullivan Exteriors
Address: 192 Greenwood Ave.,, Midland Park, NJ, 07432
Telephone: (201) 857-0600

Bergen County’s Certified Andersen & Marvin Window Contractor Since 2006

Windows shape how a home looks, performs, and feels from the inside out. At PJ Sullivan Exteriors, we’ve approached window services as a design-build decision since 2006, working with Bergen County homeowners who want more than a product swap. Our services cover window installation, replacement, cleaning, repair, and weatherproofing. As a certified Andersen contractor and Marvin Authorized Replacement Contractor, we bring manufacturer-level product knowledge to every project, backed by a 3D design visualization process that lets homeowners see exactly what new windows can look like before anything is ordered.

What separates a design-build company from a volume replacement contractor is how the window is evaluated. We look at each opening in relation to the home’s siding, trim, roofline, and overall exterior direction rather than selecting a product in isolation. For Bergen County homeowners, that approach means windows that can improve energy performance and curb appeal without looking like an afterthought against the rest of the facade.

Contact us online or call (201) 857-0600 to book a window service or schedule a consultation.

Window Installation & Replacement You Can Count On

We handle a full range of window styles to fit the architectural variety of northwest Bergen County homes.

Window styles we handle:

Double-hung windows – classic design with easy operation
Casement windows – excellent ventilation and energy efficiency
Bay and bow windows – enhance natural light and interior space
Sliding windows – space-saving and modern style
Custom window solutions – designed to fit unique home layouts

Every installation includes careful attention to flashing, sealing, and insulation around the frame. Those details determine how well a window performs through freezing winters and humid summers, not just how it looks on day one.

As a Marvin Authorized Replacement Contractor, we specify and supply Marvin product lines matched to your home’s architecture. Northwest Bergen County’s housing stock spans historic properties and newer developments, and the right recommendation depends on the home’s era, style, and your priorities. Material and style choices are tailored accordingly. Where window work is part of a broader exterior renovation, our design-build process keeps every element coordinated under one team.

Homeowner Questions We Hear Most

How Do I Know If It’s Time to Replace My Windows?

Look for signs like:

Drafts or uneven temperature near windows
Difficulty opening or closing
Condensation between panes
Visible damage, cracks, or rot

For many homes in towns like Wyckoff, Saddle River, and Allendale, original windows may no longer provide adequate insulation for cold winters and humid summers. If outside noise has become more noticeable or your HVAC runs constantly, the glass or frames may no longer be performing. Replacing old windows can improve energy efficiency, reduce heating and cooling costs, and support your home’s overall value. During a site visit, we evaluate your existing units, explain whether repair or replacement makes the most sense, and outline how different options might affect your comfort and long-term costs.

What Types of Windows Work Best for NW Bergen County Homes?

Material options include vinyl (low maintenance and durable), fiberglass (energy-efficient and weather-resistant), and wood (classic look, ideal for traditional homes, requires maintenance). See the materials guide below for a full comparison of how each performs in Bergen County’s climate.

As a certified Andersen contractor and Marvin Authorized Replacement Contractor, we advise on product lines appropriate for the full range of Bergen County’s architectural styles. When we meet with you, we talk through glass options, hardware finishes, and interior trim so your new windows feel like a natural extension of the home. Bergen County municipalities follow specific building codes for safety glass and energy performance, and we factor those requirements into every product and installation recommendation.

What Does the Consultation Process Look Like?

We start with a site visit to evaluate your existing windows and discuss your goals. From there, we use 3D design visualization so you can see how different window styles, materials, and finishes can look against your home’s exterior before any order is placed. That step removes the guesswork and helps you make confident decisions. Throughout the project, you have one point of contact for questions, scheduling, and follow-up, and we communicate clearly about timelines and what to expect on installation day.

Why Bergen County Homeowners Choose PJ Sullivan Exteriors

We’ve served northwest Bergen County homeowners since 2006. PJ Sullivan Exteriors appeared on Remodeling Magazine’s Top 550 list from 2012 through 2019 and earned Best of Houzz awards for customer service from 2014 through 2019. We hold a BBB A+ rating and carry GAF certification for roofing, which is relevant when window projects are part of a broader exterior renovation.

Homeowners working with us can expect:

Certified contractor credentials – certified Andersen contractor and Marvin Authorized Replacement Contractor
Integrated design-build process – one team from consultation through installation, with 3D visualization before work begins
Transparent communication – timelines, product options, and installation-day expectations discussed clearly upfront
Local familiarity – experience with the architectural range of homes across northwest Bergen County, from historic properties to newer developments
Single point of contact – one person to reach for questions, scheduling, and follow-up throughout the project

From the initial consultation through the final walkthrough, we protect your landscaping and interior finishes while we work. Many homeowners appreciate having a consistent contact rather than being passed between departments, and that structure keeps the project organized from start to finish.

Contact Us for Window Services in Bergen County

PJ Sullivan Exteriors provides window installation, replacement, repair, and weatherproofing throughout Wyckoff, Saddle River, Allendale, and the surrounding Bergen County area. Whether you’re updating a single window or completing a full exterior upgrade, we provide personalized guidance on materials, styles, and finishes so your new windows fit the home and can perform reliably for years to come.

Call us at (201) 857-0600 to schedule your consultation and get started on your window project.

Window Materials for Bergen County Homes: What to Know Before You Choose

The right window material depends on your home’s architecture, how much maintenance you want to take on, and how the windows will perform through Bergen County’s cold winters and humid summers. Here’s how the primary options compare.

Vinyl Windows

Vinyl is the most common choice for replacement projects across Bergen County. It resists moisture and humidity, holds up through temperature swings, and requires no painting or staining. Available in a wide range of colors and profiles, it’s a practical fit for most home styles and budgets.

Fiberglass Windows

Fiberglass offers high dimensional stability: the frames expand and contract very little as temperatures change, which helps maintain a tight seal over time. The material can be painted to match interior trim and closely replicates the look of finished wood without the ongoing maintenance. For Bergen County homes that see significant seasonal temperature variation, fiberglass is a strong long-term performer.

Wood Windows

Wood provides the warmest aesthetic and the closest match for traditional or historic home styles common in northwest Bergen County. It accepts paint and stain well, allowing for a custom finish that coordinates with interior millwork and exterior trim. The trade-off is maintenance: wood frames require periodic painting or sealing to prevent moisture damage, a factor worth weighing against the visual result.

Glass Performance & Energy Efficiency

Beyond the frame, glass selection affects how a window performs day to day. Double-pane insulated glass with low-E coatings can reduce heat transfer in winter and limit solar heat gain in summer, a meaningful upgrade over the single-pane or aluminum-frame windows found in many Bergen County homes built before the 1980s. Energy Star-rated windows meet EPA thermal performance thresholds for the Northern climate zone, which includes New Jersey and much of the northeastern United States. Hardware finish, grille pattern, and interior color options allow windows to match the home’s existing trim and architectural details rather than reading as an obvious replacement.

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Read Our Five-Star Client Reviews

A pleasure to work with this group.
“Professional, competent, timely. A pleasure to work with this group.”

- Sal R.
The quality of the work, as well as the conduct of the staff, was of the highest standards. The property was kept safe, clean, and secure throughout the project.
“My wife and I are pleased to provide the following information relating to PJ Sullivan Construction. The company recently completed a substantial project at our home, in a thoroughly professional and efficient manner. The work progressed on schedule as outlined at the commencement of the project without interruption or delay. The quality of the work, as well as the conduct of the staff, was of the highest standards. The property was kept safe, clean, and secure throughout the project. We were made aware of any changes and/or offered suggestions, without any pressure to spend additional sums, and always adhered to our ultimate decision. We had been involved with construction projects on many previous occasions but this was our first time working with PJ Sullivan Construction. We were very pleasantly surprised in both, our dealings and the final results.”

- Adolfo L.
I would highly recommend Peter to anyone looking for an honest, capable, and professional contractor. He will exceed your expectations!
“It’s no accident that his company is one of the best in Midland Park.”

- Former Client
Peter was very helpful with deciding what products we used and what color schemes would look best for our project.
“I would definitely use Peter and his company again for any future projects.”

- Sherappa S.

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Why Choose Us?

Experience Exceptional Service

Industry Recognition

We've been acknowledged for excellence by leaders in the field, nationally ranked for exterior replacement, and rated highly by satisfied clients.
Personal Attention

Each client receives one-on-one attention through the entire process. Our vendors are hand-picked and the best in the business.
Your Project is Our Project

We maintain a consistently high level of professional care and responsibility in each project, and guarantee all of our work to be of exceptional quality.
Unparalleled Style

Our style is as unique as our clients are. With each new client, your luxury dreams become reality. You can expect a timeless style that will outlast today’s trends.