Licensed & Insured
BBB Accredited
Free Estimates
24/7 Emergency
Carpenter Mendez LLC installs replacement windows and new doors for homeowners across New Jersey. Improve energy efficiency, curb appeal, and home security with properly installed windows and doors — licensed crew, 15 years of experience, free estimates available.
Windows and doors are two of the most impactful elements in any home — for energy performance, security, noise control, and curb appeal. At Carpenter Mendez LLC, we install replacement windows and new doors across New Jersey with a focus on weathertight seals, proper flashing, and finish trim work that looks like it was always there.
We work with homeowners on single-window replacements and full-house window packages, entry door replacements, patio and sliding door installations, and garage door rough openings. Every installation is treated as a weatherization project first — the opening is properly prepared, flashed, and sealed before the new unit goes in.
We serve Livingston, Montclair, Maplewood, West Orange, Short Hills, and all of northern New Jersey. Our installations are clean, efficient, and finished to a standard that holds up through New Jersey's full seasonal range.
Replacing windows is one of the highest-impact energy upgrades a New Jersey homeowner can make. Older single-pane windows and deteriorated double-pane units with failed seals are significant sources of heat loss in winter and solar gain in summer, both of which drive up energy costs and reduce indoor comfort. Modern double and triple-pane low-e windows dramatically reduce this heat transfer.
We install replacement windows in both insert and full-frame configurations. Insert replacements fit within the existing frame — faster, cleaner, and less disruptive — and are appropriate when the existing frame is structurally sound and square. Full-frame replacements remove the entire unit down to the rough opening, which allows for frame repairs, re-insulation of the rough opening, and the installation of a new sill, jamb, and exterior trim.
Every replacement window installation at Carpenter Mendez LLC includes proper flashing at the head and sill, interior and exterior caulking with appropriate sealants, and interior trim reinstallation or new trim installation where required. We handle all window sizes and styles — double-hung, casement, awning, sliding, fixed, and bay configurations — and work with multiple manufacturers to give homeowners options at different price points.
Entry door replacement is one of the most visible upgrades a homeowner can make. A new entry door changes the face of the house, improves security, and eliminates the drafts and air infiltration that deteriorated door units allow. We install pre-hung fiberglass, steel, and wood entry door units with proper shimming, weatherstripping, and threshold adjustment for a tight seal and smooth operation.
Patio door replacements — sliding glass doors, French doors, and multi-panel folding systems — require attention to the sill pan flashing and structural header above the opening, particularly on wider installations. We assess the rough opening conditions before any door is ordered, confirm the header is properly sized for the span, and install the new door unit with full perimeter flashing and interior and exterior trim completion.
Interior door replacements, new door installations in remodeled spaces, and barn door hardware installations are also part of our scope. We handle all rough opening sizing and framing modifications, door hanging, hardware installation, and casing trim. In older New Jersey homes where door openings are out of plumb or square from decades of settling, we assess and correct the rough opening conditions before hanging the new door so it operates correctly from day one.
New Jersey's climate makes window and door quality particularly consequential. The state's significant temperature swings — from below zero wind chills in January to high 90s in July — stress every seal, every weatherstrip, and every glass unit in your home's envelope. Low-quality windows with inadequate gas fills and frame materials that conduct heat rapidly fail to provide meaningful thermal resistance, and their seals fail faster in NJ's temperature cycling.
Beyond energy performance, improperly installed windows and doors are a leading source of moisture infiltration in NJ homes. Water that enters at a window head or sill can travel laterally inside the wall cavity before appearing as a stain on interior drywall — often far from the actual entry point. Proper flashing and sealant installation at every window and door opening is the critical detail that prevents this damage.
In New Jersey, window and door work may require permits depending on the scope — particularly for new openings that involve structural header work. Carpenter Mendez LLC is fully licensed and handles all permitting requirements for projects that need it. We also ensure all installations meet Energy Star requirements for the NJ climate zone when specified, which is relevant for homeowners pursuing energy efficiency incentives and rebates.
New windows and doors installed by a licensed contractor deliver measurable improvements to your home's energy performance, security, comfort, and market value from day one.
Contact Carpenter Mendez LLC for a free window and door installation estimate across northern New Jersey. We respond within 2 hours.
From single replacement windows to full entry door transformations and patio door installations, here's a sample of recent work completed across northern New Jersey.
Every window and door we install is properly flashed, sealed, and trimmed inside and out. No shortcuts on the details that prevent moisture damage behind NJ walls.
Fully licensed in New Jersey with 15 years of window and door installation experience across all home styles, ages, and opening configurations in the region.
We assess the openings, review the existing conditions, and deliver a written estimate at no charge — unit costs, labor, trim, and any structural work clearly outlined.
"[PENDIENTE — review real de cliente de windows/doors. 25-35 palabras.]"
"[PENDIENTE — review real de cliente de windows/doors. 25-35 palabras.]"
"[PENDIENTE — review real de cliente de windows/doors. 25-35 palabras.]"
We install replacement windows in all styles — double-hung, casement, sliding, awning, bay, and fixed — in both insert and full-frame configurations. For doors, we handle entry doors, patio and French doors, sliding doors, and interior doors. We work with fiberglass, steel, and wood units and can present options at multiple price points during the free estimate.
Straight window and door replacements in the same opening typically don't require a permit. If you're creating a new opening, enlarging an existing one, or adding a door where there wasn't one before — all of which require structural header work — a permit is required. We handle all permitting for projects that need it in every NJ municipality we serve.
A single window replacement typically takes one to two hours. A full-house window replacement of 10 to 15 windows takes one to two days depending on window style and access conditions. Door installations take one to four hours per unit depending on the type of door and whether rough opening adjustments are needed.
Window replacement costs vary based on the window size, style, material, and the number of units being replaced. Full-frame replacements cost more than insert replacements. We provide free, written, itemized estimates so you know the complete cost — unit, labor, and trim — before committing.
Yes. Older New Jersey homes settle over decades, and many window openings are no longer plumb and square. We assess the rough opening conditions before ordering any window, and for full-frame replacements, we correct the opening geometry so the new window operates correctly and seals properly from installation day forward.
Yes. We're fully licensed and insured in New Jersey with 15 years of residential window and door installation experience across the state. We handle everything from the rough opening assessment to the final interior casing trim, and we manage any permitting requirements for structural work.
Carpenter Mendez LLC installs replacement windows and new doors across northern and central New Jersey. Select your city for local service information.
Vinyl, fiber cement, and wood siding installed to protect and refresh your NJ home's exterior. Licensed contractor, free estimates, full exterior scope.
Learn More →Installation, repair, replacement, and maintenance for residential roofs. Licensed NJ crew, 15 years of experience, available 24/7 for urgent situations.
Learn More →Structural framing and precision finish carpentry for renovations and new construction across New Jersey. One crew handles rough and finish work.
Learn More →Full kitchen transformations with custom cabinetry, countertops, and layouts. We handle every phase from design through final walkthrough across NJ.
Learn More →Full bathroom renovations with tile, fixtures, and custom layouts. Proper waterproofing and licensed trade coordination on every NJ project.
Learn More →Custom wood and composite deck construction built for New Jersey's climate and properly permitted in every municipality where we build.
Learn More →Tell us about your window or door project. We'll assess the openings and deliver a written estimate with no obligation — usually within 48 hours.
