Stop wasting money on full window replacements. In most cases, a professional repair is all you need — and it costs a fraction of the price. We fix windows right the first time.
These are the most common window problems we see every day. They're frustrating — and they're all fixable without replacing your entire window.
Stuck, jammed, or stiff windows that take two hands and all your strength to budge. A daily frustration that shouldn't exist.
Very CommonYour sash crashes down the moment you let go. Or it won't stay open at all. A broken balance system makes windows dangerous and unusable.
Safety IssueA lock that doesn't catch, won't latch, or has broken completely. That's not just inconvenient — it's a security risk for your family.
Security RiskFeel a cold breeze near your window when it's closed? Failed seals and worn weatherstripping let outside air — and your heating bill — spiral out of control.
Energy LossSoft, spongy, or visually deteriorating wood around your window. Left untreated, rot spreads — and what's a simple repair today becomes a full replacement tomorrow.
Act FastWater stains around your window frame, peeling paint, or visible moisture. Gaps in caulking and failed seals let rainwater in every storm.
Structural RiskDealing with one of these? Don't wait — small window problems become expensive ones fast.
Schedule My Free Inspection →From broken balancers to rotted wood, our technicians have the skills and tools to restore your windows to full function — without unnecessary replacements.
We replace broken springs, spiral balancers, and block-and-tackle systems so your windows open, hold, and close smoothly and safely.
Faulty latches, broken handles, and failed locks are repaired or replaced to restore full security to every window in your home.
Cracked, broken, or foggy single panes? We replace damaged glass units quickly and cleanly — no frame removal required.
We remove old, failing caulk and apply professional-grade sealants to stop drafts, moisture infiltration, and water damage at the source.
We don't just paint over rot — we excavate the damaged wood, treat the area, and rebuild with architectural epoxy or treated timber for a permanent fix.
Hinges, operators, tilt latches, and all other window hardware — we source correct replacement parts and get your windows working like new.
Open and close with one hand. No more wrestling with your windows every morning.
Locks that latch properly give you peace of mind — especially at night.
Proper sealing keeps cold air out in winter and cool air in during summer.
Repair instead of replace — often at 20–30% of full window replacement cost.
A properly repaired window can last decades more. Protect your investment.
Sealed frames and repaired weatherstripping keep rain, wind, and moisture outside where they belong.
Whether your home has classic wood windows or modern aluminum frames, we have the experience and parts to get them working perfectly.
Aluminum windows are durable but prone to hardware failure, broken balancers, and seal deterioration over time. We stock parts for all major aluminum window brands.
Wood windows require special care — especially when rot sets in. Our technicians are trained in wood restoration and rot repair, not just hardware replacement.
Not sure if your windows can be repaired? Let us take a look — our inspection is free and honest.
Book My Free Inspection →We built our reputation on one simple principle: fix what can be fixed, and be honest about what can't.
Every tech knows windows inside and out — from vintage wood sashes to modern aluminum balancer systems.
We never push for replacement when a repair will do the job. Your budget matters to us.
Most repairs are completed in a single visit. You won't wait weeks for a working window.
We assess the problem, explain what's needed, and quote an upfront price. No hidden fees. No surprises.
We stand behind every repair. If something isn't right, we come back and fix it — that's our promise.
We serve all of New Jersey — Bergen, Essex, Hudson, Middlesex, Monmouth, Union, and more.
"My living room window had been stuck for two years. I assumed I needed new windows. WindowServ fixed the balancer in under an hour. I could've kicked myself for waiting so long."
— Mark T., Montclair NJ"The wood around our bedroom windows was rotting badly. I was quoted $4,000 for replacement windows. WindowServ repaired the rot and resealed everything for a fraction of that price."
— Sandra L., Ridgewood NJ"Every lock on our aluminum windows had failed. Security was a real concern. They replaced all the hardware in one visit — professional, fast, and reasonably priced."
— James K., Hoboken NJTell us what's going on and we'll come out, assess the damage honestly, and give you a straight-up quote. No pressure, no upselling, no surprises.