
Sticking Windows & Doors: Is Your Foundation the Cause?
If you've started lifting, jiggling or forcing a door or window closed, the issue may not be the door—it could be your foundation. Although sticking doors and windows aren't always caused by foundation problems, they shouldn't be ignored if they continue to worsen or appear with other structural changes. We diagnose the root cause and recommend the right solution.
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Symptoms
Clues Your Sticking Windows & Doors Could Be a Foundation Problem
There's usually a reason doors and windows become difficult to open or close. Humidity swings can sometimes cause temporary sticking, but the symptoms below may point to foundation movement—especially if they've developed gradually over time or appeared alongside other structural changes:

Front Door Is Hard to Open or Close

Interior Doors Won't Stay Latched

Windows Are Hard to Open or Stick

Drywall Cracking Around Door & Window Frames

Gap Beneath the Garage Door
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Causes
What's Causing Sticking Windows and Doors
Foundation settlement, moving soil and hydrostatic pressure can all lead to structural movement that throws door and window openings out of alignment. While humidity and normal wear can sometimes cause temporary sticking, foundation movement leads to lasting structural changes. Each home has a structural frame, and every door and window is precisely fitted within it. If a foundation settles unevenly or moves, those openings can shift slightly out of square.
As the frame twists or moves, doors may become difficult to close or latch, windows can stick or refuse to open and gaps can begin showing up around frames. Unlike seasonal sticking, these problems tend to worsen over time as the foundation continues to move.
Foundation Settlement
Foundation settlement happens when the ground beneath your home shifts or compresses, allowing one section of the foundation to sink lower than another. Even minor movement can change the shape of door and window openings, making them harder to open, close or latch.
While your home’s foundation settles unevenly, the framing above shifts to the new position. That structural movement can leave doors dragging, windows sticking and cracks forming around frames. Stabilizing the foundation addresses the underlying movement before more damage occurs.

Soil Movement
The soil beneath your home is constantly affected by moisture. Heavy rain, drought and seasonal weather can make the ground expand, contract and shift, adding stress to the foundation over time.
Once the soil no longer evenly supports the foundation, structural movement can occur. That movement usually shows up inside the home as sticking doors, hard-to-open windows and gaps around frames. Identifying and addressing the source of the movement helps protect your home from further damage.

Hydrostatic Pressure
When the soil around your home becomes saturated with water, it creates hydrostatic pressure against the foundation. The constant force can push on foundation walls and add to structural movement.
As pressure builds, foundation walls may begin to shift or bow inward, affecting the alignment of the structure above. Over time, doors and windows can get harder to operate as the home’s framing moves out of square. Easing hydrostatic pressure and stabilizing the foundation can help prevent continued movement.

How foundation settlement affects your home's structure

Foundation Begins to Move
Changing soil conditions, settlement or moisture push one area of the foundation out of place.

The Structure Shifts
As the foundation shifts, the framing above adjusts. Door and window openings may fall slightly out of square.

Doors & Windows Stop Operating Properly
Frames no longer align correctly, making doors hard to latch and windows harder to open or close. You may also start to see drywall cracks, uneven floors and gaps around frames.
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Proven Foundation Repair Solutions for Sticking Windows & Doors
When foundation movement causes your doors or windows to stick, the real solution is to stabilize the structure—not trim the door or replace the window. Because no two foundation problems are the same, the best repair depends on the source of the movement, not simply the symptom you see. Every home is unique, so the right repair depends on the cause of the movement, the type of foundation and the severity of the problem. Following a thorough inspection, we'll recommend the best solution to help restore your home's stability and stop further movement.

Helical Foundation Piers

Push Foundation Piers

Wall Braces & Anchors

PowerBrace™ Wall Repair System

Carbon Fiber Reinforcement

EverBrace® Wall Restoration System
How It Works
How We Address the Foundation Problem Behind a Sticking Door or Window

Step 1
Conduct a Comprehensive Inspection
Our Design Specialist assesses your home’s foundation, takes floor elevation and structural movement measurements, and searches for signs of settlement inside and outside the home.

Step 2
Determine the Cause
We figure out what’s causing the foundation to move and explain how it’s showing up in your doors, windows and other areas of your home.

Step 3
Stabilize the Foundation
Depending on your home’s needs, we may recommend push piers, helical piers, wall stabilization systems or other proven foundation repair solutions engineered to stop further movement.

Step 4
Work Toward Restoring Structural Alignment
Once the foundation is stabilized—and in some cases lifted toward its original position—door and window openings may improve. Some homes may also need minor finish carpentry once structural repairs are complete, and we’ll explain which improvements are realistic based on your home’s condition.

Step 5
Protect Your Investment in the Long Term
After repairs are complete, your foundation is protected by a transferable warranty, giving you added peace of mind now and if you sell your home down the road.
Benefits
Why Local Homeowners Trust NV Waterproofing and Foundation Repair
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What To Expect
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We’ll walk you through what we’re seeing in easy-to-understand language so you know the root cause of the issue, not just the symptoms.
Review recommendations
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Don't just take our word for it
See what our customers have to say about our work.
NV Waterproofing was extremely responsive and 100% committed to identifying our water problem and designing a solution. Their work was excellent. The crew was on time and organized. They were very careful to protect the exterior landscaping and the interior of our home from dirt and debris. Even two years later, they responded to a sump problem at no additional charge. NV Waterproofing does the job right and stands behind its work.
Mike and Lynn F. | Columbia, MD
We bought a house in a state of disrepair, and so we've had to work with a number of contractors. I'd rank this company at the top of the list for their professionalism, knowledge, experience, and honesty. We had bowing of our basement walls that needed to be addressed. Michael came out to assess the situation, and gave us some options. After speaking with him, I felt very confident in their ability to buttress our walls. It was also a huge bonus that we were able to set up a payment plan for this job too. When the team showed up, Casey, Kevin, and Grant, they were super polite and professional. They took great care of our property, and if they had a question about anything, they asked. Also, if I had a question, Casey (the foreman), was very knowledgeable and quick to answer. They presented the work as they progressed through the job, and really, I was actually a little blown away by the scale of the project, and the speed at which they worked. What an impressive job they did! We're very confident in the work they did and will hire them again.
Ellen M. | Takoma Park, MD
We were referred to NV Waterproofing from my brother-in-law who used them and was pleased. They came out and gave us an estimate - they were very prompt. We had the work done - it looked great and I am sure will do the job (only time will tell). We did have a miscommunication with the work (mostly on our part), but the owner had it fixed promptly and without additional cost. I would highly recommend them to anyone with water issues in their basement.
Susan C. | Washington DC, DC
NV stuck with me and made sure I was happy. Roberto Jr kept me calm as my problem persisted and kept working on a solution beyond the obvious. I highly recommend. Looking forward to a dry basement this summer.
Dean R. | Washington, DC
I am writing this letter to commend members of your organization for the waterproofing work performed on and around the foundation of my house. Despite situations beyond the control of both me and your associate, he always maintained professionalism and demonstrated why he is an outstanding representative of your organization. The crew obviously knew what had to be done and went about doing it. They were prompt in arriving at work each day, diligent in the performance of their duties (in spite of high heat and humidity), and took measures to ensure the safety around the excavated area (important because of children in the neighborhood). Unlike other construction sites I have seen, the crew maintained the area free of litter— no small measure these days! In addition, the crew always provided clear explanations of the work to be done each day, answering the questions with forthright and clear responses, never hurrying the discussion. As I was not on site while work was being done, they called me several times, taking those extra steps to keep me informed of the status of the work and aware of the tasks yet to be performed— something that is greatly appreciated. I would appreciate it if you would offer my heartfelt thanks to your able crew for the quality waterproofing work performed and the excellent communication and coordination exhibited by them.
Myra L. | Washington, DC
In my 12 years of having NV Waterproofing as a business partner, they have always proved reliable and trustworthy. They are a great value for me and my customers.
Darryl O. of Brookfield Homes, | Washington, DC
Great professional service and able to respond in timely manner to the project need.
Blake B. | Washington, DC
Brendan was very knowledgeable, professional and courteous. Highly recommend.
Cesar T. | Arlington, VA
A brief note to thank NV Waterproofing for extreme professionalism and courtesy in the manner in which my recent basement water seepage problem was addressed. From the initial contact with Jim, through the work with Roberto, Carlos and Jose, it was an overall pleasant experience – not to mention my contact with the owner and his responsiveness.
Ramesh T. | Arlington, VA
These guys were amazing. The initial visit was smooth, not pushy at all and he was even able to accommodate the relocation of a small drainage pipe. The demo to install the system was done beautifully, yes it was really good, you can tell they were precise and careful when doing so. Everything was clean, no stains on my carpet and they protected everything. No leak so far and I love it. Did I mention the price was excellent? I had 3 other companies to estimate thousands and even tried to sell extra unnecessary equipment. Thank you NV Waterproofing I have and will continue to recommend you.
Chelly Z. | Falls Church, VA
We appreciated NV Waterproofing's honesty and the men who worked tirelessly in uncomfortably cold weather. We've had one big storm since they finished and the basement walls are nice and dry. Nice work!
Peter V. | Falls Church, VA
Mauricio and Cristian were the initial sales reps who came to examine the issue and they took the time to test drainage that might have potentially been creating the water issue. They offered a reasonable solution (sealing the visible cracks and holes in the concrete) and I was contacted within a couple of days with an estimate and scheduling options. Sean was our tech and he did a fantastic job diagnosing the issue beyond just the cracks. He not only address all the holes and cracks in the concrete and mortar, he sealed up additional entry points above the foundation. He sourced additional materials to cover openings for cable lines. He went above and beyond and gave us measured information on how we should continue to monitor and treat this area as the house settles. He was thorough, informative, and provided excellent service in his work. I'm very glad that Sean was the technician sent to us and I would specifically request him for your projects.
Sara T. | Falls Church, VA
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Before & after photos
Check out before and after photos from some of our completed projects.


Sunken Concrete Step Repair in Stephens City, VA
This Stephens City, VA homeowner was dealing with a sunken concrete front step that had settled over time, creating an uneven entryway and a noticeable tripping hazard near the front door. Sunken concrete steps can make everyday foot traffic unsafe for homeowners, guests, and delivery drivers, while also taking away from the home’s curb appeal. Our concrete repair team lifted and leveled the front step back to its proper position, creating a safer, more stable walkway and entrance. This concrete step repair helped reduce the risk of falls, improved the look of the front entry, and gave the home a cleaner, more welcoming appearance. The homeowner was thrilled with the outcome — a big transformation that improved both safety and curb appeal!
Basement Waterproofing in Winchestor, VA
A homeowner in Winchester, VA, was struggling with a failing sump pump that couldn’t keep up during heavy rainstorms, leaving their basement vulnerable to water intrusion. The lack of a reliable backup system also left them worried about potential flooding during power outages. Frustrated and seeking a dependable solution, they contacted NV Waterproofing and Foundation Repair, a trusted basement waterproofing company in Winchester, VA.
After assessing the situation, we replaced their old sump pump with a state-of-the-art TripleSafe Sump Pump system. This advanced system includes three levels of protection: a primary pump, a secondary pump for heavy water flow, and a battery backup to ensure the basement stays dry even during power outages. The homeowner now has peace of mind knowing their basement is fully protected, no matter the weather.
Pool Deck Leveling in Manassas, VA
A homeowner in Manassas, VA, quickly realized their dream backyard pool was at risk when the surrounding concrete pool deck began to show serious problems. Uneven and sunken slabs created tripping hazards and unsightly cracks, making both safety and aesthetics a challenge for anyone using the space. Additionally, water from rain and pool use was pooling in low spots, causing slippery surfaces and further soil erosion beneath the deck. These issues not only threatened the safety of family and guests but also compromised the value and enjoyment of the home.
Seeking an effective solution, the homeowner reached out to our team for a professional assessment. We identified the main cause of settlement: soil erosion under the slabs—a common issue in Manassas due to its clay-rich ground and fluctuating moisture. To address both the immediate hazards and prevent future damage, we recommended our two-part approach: the cutting-edge PolyLevel® concrete leveling system and NexusPro® Joint Sealant.
The repair process began with drilling small holes into the affected concrete slabs, allowing us to inject high-strength PolyLevel® polyurethane foam beneath the surface. As the foam expanded, it filled voids, stabilized the soil, and gently lifted the slabs back to their original positions. The process was quick, clean, and minimized disruption, giving the pool deck a level, safe surface once again. PolyLevel® foam is waterproof and lightweight, reducing the risk of future settling and ensuring long-term durability, even in a wet poolside environment.
To provide further protection, we sealed all cracks and joints with NexusPro® Joint Sealant. This flexible, weather-resistant sealant prevents water from seeping beneath the slabs, protecting the soil and concrete from additional erosion. The result was a clean, finished appearance that not only improved the look of the deck but also safeguarded it for years to come.
Thanks to modern concrete leveling technology, the homeowner’s pool deck was transformed from a liability into a safe and attractive outdoor gathering space. The project was completed in a single day, with minimal mess and immediate results, giving the homeowner peace of mind and renewed pride in their backyard. If you’re facing similar issues with your pool deck in Manassas, VA, the PolyLevel® system and NexusPro® Joint Sealant offer a fast, effective, and lasting

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Frequently Asked Questions
Humidity typically affects multiple doors or windows and may ease as weather conditions change. Foundation movement generally gets worse over time, often starts in one area of the home, and is often accompanied by drywall cracks, uneven floors or gaps around door and window frames.
No two homes are the same. Some doors and windows operate more smoothly right after the foundation is stabilized, while others may call for minor finish carpentry to restore proper alignment. At your inspection, we’ll explain what improvements you can reasonably expect based on your home’s condition.
Foundation repair stabilizes the structure and helps prevent further movement. Depending on how extensive the damage is, stabilizing the foundation may improve the alignment of door and window openings. In some cases, minor adjustments to the door or window may still be needed after the foundation has been repaired.
It’s best to have the problem inspected before modifying the door or replacing the window. If foundation movement is what’s shifting the frame, cosmetic repairs won’t address the underlying issue and the door or window will likely become difficult to operate again. Finding the root cause first can help prevent unnecessary repairs.
Yes, sticking doors and windows can be an early sign of foundation problems, but structural issues aren’t always the cause. If they show up alongside drywall cracks, sloping floors, gaps around frames or exterior foundation cracks, it’s worth scheduling a professional inspection to determine whether foundation movement is to blame.
Doors and windows can stick for a number of reasons, such as seasonal humidity, normal wear or foundation movement. If just one door or window is affected and the problem keeps worsening over time—especially alongside cracks or uneven floors—it may indicate foundation movement. A professional inspection can identify the underlying cause.
Related pages
Service Areas
NV Waterproofing has locations throughout Northern Virginia, D.C., and Suburban Maryland.
Resources
Access valuable resources to help keep your home healthy and your family safe.
Our Promise
At NV Waterproofing, we pride ourselves on providing permanent solutions, and stand behind our work with industry-leading, fully transferable warranties and guarantnees.






