Nassau · Suffolk · North & South Fork
Window Adjustment Service on Long Island
Free on-site estimate. Licensed and insured in Nassau and Suffolk, with offices in Manhasset and Hauppauge.
A window that sticks, won't close flush or lets in a draft is more than an annoyance, it's an energy loss, a security risk, and a problem that gets worse. Long Island's climate tend to put windows through significant stress: humidity swells frames in summer, freeze-thaw cycles shift foundations in winter, and decades of painting over hardware leaves windows that technically still open but no longer function correctly.
At Prestige Window Works, we provide professional window adjustment throughout Long Island, NY, diagnosing and correcting fit, alignment, and sealing issues across Nassau County and Suffolk County. Most window adjustment jobs are completed in a single visit, with no parts needed, just the expertise to identify what's causing the problem and the skill to fix it properly the first time.
Double-hung, casement, tilt-turn, awning, slider, French doors: we adjust every window type using the correct method for that specific frame and hardware system. We use a professional draft detector to locate every air leak precisely, not guesswork, so every seal point gets addressed, not just the obvious ones. Most window adjustment jobs need no parts. Our technician arrives, diagnoses, and fixes on the spot.
4.9★649+ Google reviews
A+BBB accredited
LicensedNassau & Suffolk, fully insured
5 & 10 yrwarranties on wood and glass units
Where we do this work
All over Nassau and Suffolk, from our offices in Manhasset and Hauppauge out to the Hamptons and the North Fork.
Nassau County →
Garden City · Massapequa · Rockville Centre · Great Neck · Port Washington · Merrick
The East End →
The Hamptons, Sag Harbor, the North Fork, Greenport and Riverhead
4.9 stars from 649+ Google reviews
What homeowners say
Called Prestige for an assessment of a drafty window. They were on time and very honest about the window not needing to be replaced. The technician helped in resolving the problem as the windows weren’t locked and was very helpful in showing how to access the screen windows.
Kristen AlisterDennis and his partner did a fabulous job. I am very happy. The work was done to perfection. Would never use any other company.
Lorraine PavlickoI had a leaky window that was determined to by part of a siding issue. But Andrey was knowledgeable about the window and explained to me how the issue could happen. He came on time and was very communicate.
Amanda BlezardWhat Window Adjustment Actually Covers
"Window adjustment" is a broad term that covers several distinct problems. Understanding which one you have helps explain why the fix is different in each case and why guessing at the solution often makes things worse.
Windows That Stick or Are Hard to Open
Sticking windows are the most common adjustment call we receive across Long Island. The cause varies by window type and material. Wood windows swell when they absorb moisture, particularly in humid Long Island summers. Vinyl windows don't swell but their frames can warp slightly under thermal stress or if the window was installed out of square.
Windows That Won't Close Flush or Fully
A window that closes most of the way but leaves a gap, or closes flush on one side only, indicates an alignment problem. Settled or shifted building structure are very common in older Long Island homes where foundation movement over decades has racked the rough opening slightly out of square. We identify the exact cause and adjust accordingly.
Drafty Windows
If you can feel cold air through a closed window, the seal between sash and frame has failed somewhere. This is both a comfort problem and a direct energy cost because a single drafty window can add measurably to your heating bill over a Long Island winter. We locate every air pathway using a draft detector and address each one.
Windows That Rattle in the Frame
Rattling means the sash has too much play in the frame, usually because the weatherstrip has compressed and lost its thickness, or because the window has shrunk slightly relative to its frame opening. We add or replace weatherstrip and adjust the frame stops to take up the excess play. A correctly adjusted window should be firm and quiet when closed.
Windows That Are Difficult to Lock
Lock difficulty is almost always an alignment issue. The sash cam isn't meeting the keeper at the right angle or height. On double-hung windows this usually means the sash is sitting slightly lower than it should, and the keeper needs to be repositioned. On casement and tilt-turn windows, it means the locking points have shifted out of alignment with the espagnolette.
Tilt & Turn Windows That Won't Switch Between Modes
Tilt and turn windows are designed to open two ways: turning inward for ventilation and tilting from the top for cleaning. When the handle won't rotate to the tilt position, or the window opens in one mode but not the other, it's almost always a mechanism adjustment issue rather than a broken part. We adjust the multipoint system geometry so both operating modes work correctly.
Sliding Windows That Jump the Track or Drag
Slider windows that are hard to move or derail from the track need both track and roller assessment. We clean and straighten the track, replace worn rollers if needed, and adjust the roller height so the sash glides level across the full range of travel. See our window mechanism repair service if the rollers themselves need replacement.
Window Adjustment by Window Type
Different window types have different adjustment points.
Here's what we address for each:
Here's what we address for each:
- Double-hung windows: sash planing, balance tension, lock keeper alignment, weatherstrip replacement, frame stop adjustment
- Casement windows: operator arm adjustment, hinge alignment, lock point realignment, weatherstrip compression
- Tilt & turn windows: multipoint espagnolette adjustment, handle cam calibration, compression adjustment around all four sides
- Awning windows: operator adjustment, hinge alignment, bottom seal compression
- Slider windows: track cleaning and straightening, roller height adjustment, end stop positioning
- French doors: panel alignment, hinge adjustment, astragal seal compression, multipoint lock alignment
Window Adjustment for All Major Brands
Adjustment procedures vary significantly between manufacturers: the hardware dimensions, weatherstrip profiles, and frame tolerances are all brand-specific. Our technicians are trained on the specific adjustment methods for:
- Andersen windows, including the specific sash lift and balance adjustment procedures for 400 Series and A-Series units
- Milgard windows: vinyl frame adjustment and weatherstrip replacement
- Windsor windows: wood and vinyl frame alignment
- Atrium windows: vinyl frame and sash alignment
- Columbia windows: frame adjustment and hardware realignment
Window Adjustment Across Long Island, NY
We provide window adjustment throughout Long Island, NY from our offices in Manhasset and Hauppauge.
Nassau County, including Cedarhurst, Lawrence, Inwood, Elmont, Franklin Square, Malverne
Suffolk County, including Bohemia, Oakdale, West Sayville, Blue Point, Bayport
Call 516-908-8005 to confirm coverage for your town.
Nassau County, including Cedarhurst, Lawrence, Inwood, Elmont, Franklin Square, Malverne
Suffolk County, including Bohemia, Oakdale, West Sayville, Blue Point, Bayport
Call 516-908-8005 to confirm coverage for your town.
THE MOST POPULAR QUESTIONS
How much does window adjustment cost in Long Island?
Most window adjustments cost is depending on the type of work required. Simple weatherstrip replacement or lock keeper repositioning is at the lower end. More involved work like planing a swollen wood sash or recalibrating a multipoint tilt-turn system is at the higher end. We provide a written quote on-site before any work begins.
My window was fine last winter but now it sticks. Why?
Almost certainly moisture-related swelling if it's a wood window. Long Island's humid summers cause wood sash and frame material to absorb moisture and expand. If the fit was already slightly tight before summer, a season of high humidity can be enough to make the window stick. We plane the sash to restore the correct clearance and seal the exposed wood against future swelling.
Can you adjust windows that were recently installed?
Yes. Newly installed windows sometimes develop fit and alignment issues within the first year as the building settles and materials adjust to indoor climate conditions. This is actually quite common and almost always adjustable without any warranty implications on the window itself.
My window closes but still feels drafty, is that an adjustment issue?
Yes. A window can close fully and still have significant air leakage if the weatherstrip is compressed flat, the sash isn't pressing firmly against the seal, or the lock hardware isn't pulling the sash tight. Adjustment work addresses all of these. We increase the compression, reposition the sash stops, and recalibrate the locking hardware so the closed window actually seals.
Is window adjustment the same as window repair?
They overlap but they're not the same. Adjustment covers fit, alignment, and seal issues where the window components themselves are intact, just misaligned or worn slightly. Repair covers situations where components are broken, rotted, or structurally compromised. Often we find both issues on the same window and address them in a single visit. See our wood window repair service and window mechanism repair service for related work.
How long does window adjustment take?
Most single-window adjustments take 30–90 minutes. A home with multiple windows needing adjustment is typically completed in a half-day visit. We give you a realistic time estimate at the assessment stage so you can plan your day accordingly.
What can I do if my windows are sticking?
Most sticking comes from old paint, swelling in humid summers or a frame that has shifted. We free and adjust the sash, replace worn weatherstripping (if available) and set the hardware so it opens smoothly.
How do I get my window up if it's stuck down?
Don't force it. A window that won't go up usually has a failed balance or is painted shut, and forcing it can crack the glass. We free it and replace the balance if needed.
How to fix a door that is misaligned?
A dropped or rubbing door usually needs its hinges, strike plate or threshold adjusted. We adjust entry, storm and patio doors so they close and lock properly.