Wood double-hung sash restoration
Re-glazing, weatherstripping, sash-cord and weight or balance replacement, and refinishing on original wood sash.
Service · Allendale, NJ 07401
Window Replacement & Repair in Allendale, NJ
Restoration & efficient replacement for Allendale's windows.
In detail
Allendale grew up around its railroad station, and the NJ Transit Main/Bergen County line still runs through the heart of the borough. Homes near the historic downtown include late-Victorians and early-1900s Colonials, while other streets carry mid-century ranches and split-levels. On any of them, window work starts with the condition of the sash, frame, glass and hardware. A draft, a stuck sash or damaged trim calls for a diagnosis before a decision to restore, repair or replace.
Johannemann & Sons serves Allendale across the full window line: wood double-hung sash restoration, energy-efficient replacement, leaded-glass repair, custom-millwork and new-construction windows, and the exterior carpentry that ties each opening back into the wall. We work with both period sash and modern high-performance units. What replacement actually costs here, window type by window type, is in window replacement cost in Bergen County.
Considering window work in Allendale? Call (201) 446-5941 for a free written estimate, or request a consultation online.
Your options
Three kinds of Allendale window project
The condition of the opening and the scope of the work guide the choice:
Restore the original sash
Where the wood sash and frame are sound or repairable, re-glazing, weatherstripping, and sash-cord or balance repair may preserve the existing profile. The house's age alone does not decide whether restoration is worthwhile. See window repair.
Compare repair with replacement
Extensive decay, damaged frames or repeated operating problems call for a closer look at what can be repaired. We compare that work with replacement, including the condition of the opening and the trim you want to keep. See window replacement.
Specify windows for a custom home
On new builds and gut rebuilds, we help select and install high-end casement, double-hung, bay, and picture units, sized and detailed to the architecture.
The work
Condition, efficiency, and the opening
Drafts, stiff operation and fogging between panes can point to different problems. We inspect the window and its opening before recommending a repair or a new unit. If moisture is the concern, start with where the window condensation appears.
Energy savings vary with the existing windows, installation and the house as a whole. ENERGY STAR’s savings methodology uses modeled whole-home replacements; it does not establish a bill reduction or payback period for your home.
For bedroom or basement windows, confirm escape-opening and permit requirements with Allendale’s local construction office before ordering. Like-for-like replacement and changes to an opening are treated differently under New Jersey’s Rehabilitation Subcode, section 5:23-6.5(h)1; the scope of your project matters.
In practice
Restoration and repair details
Leaded-glass repair
Re-leading damaged panels and replacing cracked glass within the lead matrix on older entries, sidelights, and transoms.
Weather-seal renewal
New weatherstripping, glazing compound, and exterior caulking to restore an airtight seal without replacing the sash.
Frame and trim repair
Rebuilding rotted sill, jamb, head trim, or exterior casing while preserving the original profile where possible.
Operational hardware
New sash chains, balances, locks, and lifts so the window works as designed.
Also
Coordinated with the roof + envelope
Windows, roof, siding, and gutters are one exterior system, and they weather on the same arc. On a full-envelope project we scope and run them together — one setup, one schedule and a clean handoff between trades.
Restore the character, upgrade the comfort. Free written estimate: (201) 446-5941 or request online.
Also in Allendale
The rest of the exterior
Roof repair
Also in Allendale.
View →Roof replacement
Also in Allendale.
View →Gutters
Also in Allendale.
View →Everything we do in Allendale → · Windows & doors in detail →
Questions
How much does window replacement cost in Allendale, NJ?
Window replacement in Allendale typically runs $1,200-$3,500+ per window installed. Stock energy-efficient units sit at the lower end; custom-millwork wood double-hung at the top. A whole-home replacement of 15-25 windows generally lands between $25K and $80K+ depending on the units and trim.
Should I restore or replace the windows on my older Allendale home?
Start with the condition of the sash, frame, glass and hardware, not the age of the house. Repairable wood sash may benefit from re-glazing, weatherstripping or balance repair. Extensive decay or damage may make replacement more practical. We compare the repair scope, replacement options and the details you want to preserve before you choose.
Will new windows actually lower my energy bills?
They may, but a lower bill or a payback period cannot be assumed. Results depend on the existing windows, the installation, the rest of the house, local weather and utility rates. ENERGY STAR savings estimates use modeled whole-home replacements, not a prediction for an individual Allendale home. We assess your existing windows before recommending work.
Do replacement windows have to meet egress code in Allendale?
The requirements depend on the existing opening and the proposed work. New Jersey’s Rehabilitation Subcode distinguishes replacement with windows like those existing from changes to opening size. For bedroom or basement escape-opening questions, confirm the requirements for your project with Allendale’s local construction office before ordering windows.
Can you match new windows to a period Allendale home?
Yes. For the older homes near the historic downtown we source units that replicate the original sash profile, muntin pattern, and exterior trim — energy-efficient on the inside, period-correct on the outside. Generic stock windows read as wrong on a Victorian or early Colonial, and we won't install them where the architecture deserves better.
Free assessment
Windows for Allendale, NJ.
Free written estimate — energy-efficient replacement, wood sash restoration, leaded-glass repair, and custom-home windows across Allendale's older and mid-century stock.