Most window problems — foggy glass, cold draughts, windows that won’t stay open — have a specific mechanical cause that determines whether repair or replacement is the right answer. Mackenzie Contracting LLC (NJ HIC #13VH12847300) diagnoses first and prescribes second, serving South Jersey from Egg Harbor Township to the shore.
NJ HIC #13VH12847300 | Licensed, Bonded & Insured | Free Estimates | Atlantic & Cape May Counties
Licensed & Insured
NJ HIC #13VH12847300
Coastal Climate Experts
Salt air & seal failure specialists
Free Estimates
No obligation, same-week scheduling
Written Documentation
Repair records for landlords & PMs
Window repair is appropriate when the frame is structurally sound and only the IGU, hardware, or weatherstripping has failed. Full replacement is necessary when the frame is rotted, out of square, or when the window is a single-pane unit beyond its service life.
When a homeowner calls about a foggy window, the question isn’t whether the glass looks bad — it’s whether the frame that holds the glass is still doing its job. We assess frame condition, sill integrity, and rough-opening squareness before recommending any repair. A new IGU installed into a rotted frame is money wasted. The repair-versus-replace framework begins at the frame, not the glass.
What We Do
Mackenzie Contracting provides IGU replacement for foggy windows, window frame repair, sash replacement, balance and hardware repair, weatherstripping, and full window replacement across South Jersey. NJ HIC License #13VH12847300 covers all residential window work.
New sealed double-pane unit installed inside the existing frame. Restores clarity, argon fill, and Low-E thermal performance.
Wood rot repair at sill, jamb, and casing. Vinyl crack repair and re-sealing. Air and water infiltration stopped at the source.
Individual sash replacement when glass is damaged but the outer frame is intact. Common on double-hung windows.
Spiral balance and block-and-tackle balance replacement. Casement operator (crank) replacement. Lock and latch repair.
Compression seal, foam backer rod, and caulk replacement. Eliminates cold draughts and reduces heating and cooling loss.
Complete removal and replacement including frame. Necessary for rotted frames, out-of-square openings, and single-pane upgrades.
Condensation between double-pane glass is caused by a failed IGU (insulated glass unit) seal, not dirt. Once the seal breaks, argon gas escapes and humid air enters the cavity. Defogging services drill the glass and inject desiccant — this is a 2–5 year temporary fix. Replacing the IGU is the permanent solution.
We’ve seen this scenario repeatedly in shore communities: a homeowner in Ventnor had their double-hung windows professionally cleaned twice and the fogging kept returning. The glass wasn’t dirty — the IGU seal had failed. A defogging service had previously drilled the glass and injected desiccant, which cleared the fog for about two years before internal condensation returned.
South Jersey’s coastal climate accelerates IGU seal failure. Salt air, high ambient humidity, and thermal cycling between cold winters and hot summers put continuous stress on seals. South- and west-facing windows in Margate and Ventnor receive the highest UV load and tend to fail earlier. We probe the frame before any IGU or sash work — there’s no point replacing the glass unit if the frame is water-damaged or out of square.
Energy note: Upgrading from single-pane to double-pane Low-E glass reduces U-factor from approximately 1.0 to approximately 0.30 — a physics measurement, not a percentage estimate.
Window frames fail in three ways: wood rot at the sill and jamb from water infiltration, vinyl frame cracking from UV and thermal cycling, and frame-to-wall seal breakdown causing air infiltration. We probe the frame before any glass work to ensure the repair addresses the root cause.
Wood rot at the sill is the most common failure in South Jersey’s humid coastal climate. Water infiltrates through a failed frame-to-wall seal or cracked sill cap, saturates the wood below, and begins biological breakdown. We remove damaged material back to sound wood, treat the substrate, and rebuild with treated lumber or high-density epoxy consolidant depending on depth and location.
Vinyl frames crack at the corners under thermal stress. We re-seal cracked corners and assess whether the vinyl extrusion has deformed enough to require sash or full-frame replacement. If water infiltration has damaged interior drywall around the window, see our drywall repair services in South Jersey for the complete interior repair.
Mechanical Repairs
A window that won’t stay open has a failed balance — either a spiral balance in a double-hung window or a block-and-tackle balance in a heavier sash. Casement windows that are hard to crank have a worn operator gear. Both are repairable without replacing the full window unit.
We apply the same weatherstripping and air-sealing expertise to door installation and repair — every penetration in the building envelope treated with the same standard.
The coiled-spring mechanism inside double-hung window frame channels. When the spring loses tension or snaps, the sash falls when released. We stock common sizes for Atlantic County window stock.
Used in heavier sashes — the cord frays or the housing cracks over time. Both spiral and block-and-tackle balances are fully serviceable without disturbing the frame or glass.
Casement operators wear at the worm gear and cause windows to crank hard or not open fully. We replace the operator gearbox at the hardware level.
Sash locks, keepers, lift rails, and tilt latches repaired or replaced. Functional locks are required for NJ rental property habitability compliance.
Full replacement is necessary when wood frames are rotted beyond patching, when vinyl frames are cracked through at the corners, when the rough opening has shifted out of square, or when upgrading from single-pane to double-pane Low-E glass for energy performance in South Jersey.
We source replacement units in double-hung, casement, slider, awning, and fixed configurations in vinyl, wood, and fiberglass frames. All installations include new sill pan flashing, backer rod, and caulk at the frame-to-wall seal.
Rental property windows must meet NJ habitability standards — functional operation, weather-tight seals, and intact glass. Mackenzie Contracting provides priority scheduling for Atlantic County landlords, with same-week service for urgent tenant habitability issues and written repair documentation on request.
NJ landlords are legally required to maintain functional, weather-tight windows under the New Jersey Hotel and Multiple Dwelling Law. We work with property managers and individual landlords across Atlantic County to document, repair, and certify window repairs in writing. For complete rental property maintenance including windows, plumbing, and carpentry, see our rental property maintenance services in South Jersey.
Where We Work
Mackenzie Contracting provides window repair and replacement in Egg Harbor Township, Atlantic City, Ventnor, Margate, Longport, Absecon, Galloway, Ocean City, and throughout Atlantic and Cape May counties. Contact us for a free estimate on any window repair or replacement project.
Based in Egg Harbor Township | Coastal communities including Ventnor, Margate, and Longport experience above-average seal failure rates due to salt air — we’re familiar with the window stock in these areas.
Common Questions
The fogging between your double-pane glass is caused by a failed IGU seal — the argon gas sealed between the panes has escaped, and humid air has entered the cavity in its place. When temperatures drop, that moisture condenses on the interior glass surfaces. This is not a cleaning problem. Defogging services (drilling the glass and injecting desiccant) offer a temporary 2–5 year improvement, but the permanent fix is replacing the IGU. South Jersey’s coastal humidity means failed seals are especially common here.
Yes, in most cases. IGU replacement, sash replacement, spiral or block-and-tackle balance repair, and weatherstripping all preserve the outer frame — the most expensive component. Full replacement is only necessary when the frame is structurally compromised by rot, when the rough opening has shifted out of square and the frame cannot be re-leveled, or when upgrading from single-pane to double-pane construction. We diagnose the frame condition first on every job. NJ HIC #13VH12847300.
IGU seals typically last 10–20 years under normal conditions, but South Jersey’s coastal environment — salt air, high ambient humidity, and significant thermal cycling between seasons — accelerates seal breakdown compared to inland NJ. South- and west-facing windows in shore communities like Ventnor and Margate receive the highest UV exposure and tend to reach seal failure earlier than north- or east-facing units. If your home was built in the mid-2000s or earlier and you’re seeing fogging, seal failure is likely.
Yes — we provide priority scheduling for landlords and property managers with habitability concerns. NJ landlords are legally required to maintain functional, weather-tight windows. We offer same-week service for urgent habitability repairs and provide written repair documentation on every rental service call. NJ HIC License #13VH12847300 covers all residential window repair and replacement work in Atlantic County and Cape May County.
Get Started Today
Call or email Mackenzie Contracting LLC — licensed, bonded, and insured in South Jersey. We diagnose the problem first, then tell you whether repair or replacement is the right answer.
NJ HIC #13VH12847300 · Egg Harbor Township, NJ · Mon–Sun 8AM–5PM
