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Jammed doors and windows

Jammed doors and windows and house movement

Jammed doors and windows are often the first signs of subsidence and foundation damage in a home. If doors or windows stick and are difficult to operate, or if they swing open on their own or have gaps around their frames, the cause of these problems should be investigated quickly by an expert.

Not only apparent in older properties, jammed windows and doors often occur when the soil underneath a home’s foundation starts to move or settle and can no longer support the weight of the home.

Foundation settlement can happen with a change to the soil, and properties of all ages are susceptible. If you notice problems with doors and windows you should monitor the severity and note any changes daily. If the problems continue for prolonged periods or worsen, this is when experts should be called in to assess the likely causes.

What causes jammed windows and doors?

To determine the correct procedure to fix any settlement issues, the underlying problem must be identified. The most common causes of foundation settlement are:

  • Groundwater levels affecting soil particles
  • Soil erosion, often caused by water that is flowing beneath a building’s foundation, resulting in voids and a reduction of bearing capacity
  • Poorly compacted soil
  • Foundation design during construction being flawed due to inadequate information about ground and soil conditions
  • Vibration caused by nearby heavy road traffic or construction activity such as drilling or piling
  • Trees and shrubs, particularly those close to the property’s foundation.
  • Some species absorb a lot of water, affecting soil moisture levels


How can Mainmark help

How Mainmark can help with jammed windows and doors?

Mainmark’s methods for treating house foundation settlement are effective for fixing the underlying problems that cause jammed windows and doors that stick in a home.

One of Mainmark’s experts will visit your home, assess the damage, and help ascertain the likely cause. Our experienced engineers and technicians establish the appropriate non-invasive underpinning approach needed, creating a plan specific to the needs of your home and the particular signs of subsidence.

Fast, cost-effective and non-invasive solutions to treat jammed doors and windows


Fast, cost-effective and non-invasive solutions to treat jammed doors and windows


Mainmark technologies for remediation of subsidence and jammed doors and windows

Teretek® – resin injection and jammed doors and windows remediation

With over 25 years of experience, Mainmark is a world leader in resin injection solutions. Teretek® uses an injection delivery method that raises, re-levels and re-supports buildings and other above-ground structures, and resolves problems like jammed doors and windows.

Teretek® resin injection technology

Jammed doors and windows remediation with JOG Computer-Controlled Grouting

JOG Computer-Controlled Grouting is an award-winning technology for strengthening weak ground beneath large residential buildings, using a cement grout injected under computer control. It is an extremely precise method for stabilising soils, consolidating weak ground and lifting foundations to deliver specific, engineered outcomes, regardless of complexity. It can help address subsidence, a common cause of jammed doors and windows.

JOG Computer-Controlled Grouting

Mainmark technology benefits

The benefits of choosing Mainmark’s subsidence treatments to resolve jammed doors and windows


Our technologies have fast curing times. Treated areas can be used quickly, without the delays associated with traditional subsidence repair methods.

Environmentally inert

Our subsidence treatment technologies can help with jammed doors and windows, and we use inert materials that are non-toxic and do not leach into the environment or affect the treated area.


Our solutions are surgical in nature compared to traditional methods that deal with subsidence, which can cause jammed doors and windows.


Compared to traditional methods, our subsidence solutions are more cost-effective and cause minimal disruption to the area.


We’re happy to have helped

Jammed doors and windows FAQs
What happens with uneven or sunken floors?

After the application of the Mainmark solution, sunken floors will become raised and re-aligned as the ground underneath is strengthened and re-supported. This should resolve jammed doors and windows, although other simple cosmetic repairs may also be required.

Will there be a mess?

With Mainmark’s methods, there will be very little, if any mess. We use Teretek® engineered resin injection technology, which is likened to keyhole surgery, or JOG Computer-Controlled Grouting, which requires no major excavation and causes minimal disruption or mess. The required injection holes are very small.

How long does it take?

Each project is different, and the length of time will depend on the required amount of lift, the size of the area needing correction, building construction methods and ground conditions. Most projects can be completed in a day or two, and we can work at night or in one area at a time, so your business can keep operating.

Do I need to vacate my property?

No, most projects don’t require you to vacate your home or even move furniture. For the most part, your day-to-day life can continue as normal with minimal disruption.

What warranty will I get?

Injected Teretek® and JOG Computer-Controlled Grouting materials are environmentally inert and have no detrimental effects on the environment.

Is it safe and environmentally friendly?

Injected Teretek® and JOG materials are environmentally inert and have no detrimental effects on the environment.

Get a quote

Arrange a site assessment in three simple steps:

Step 1

Submit your enquiry using our online form. Include a brief message about the type of foundation issues you are experiencing.

Step 2

Our friendly customer service team will be in touch to schedule a site assessment that suits you.

Step 3

One of Mainmark’s experts will visit your home or property, assess the damage and determine the likely cause. They will establish the approach needed, create a plan specific to the needs of your building and provide you with a detailed quote.

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