Windows and doors are integral to any building, providing natural light, ventilation and access while contributing to its aesthetics. However, they are continually exposed to daily wear and tear and harsh environmental conditions such as extreme temperatures, moisture and UV radiation. Over time, these factors can result in various issues that affect the performance and appearance of windows and doors.
At MJ Engineering Projects, we understand the importance of proper waterproofing detailing for sliding doors and other windows and doors. We can identify the underlying cause of water ingress and provide a specification to prevent future water penetration.
The following are some of the most common problems and their impacts on a property:
Water ingress is one of the most common issues with windows and doors. Water penetration can cause severe damage to a building’s structure, promote mould growth and lead to other health hazards. The failure of waterproofing detailing to sliding doors can cause wind-driven rain to travel laterally beneath the sliding doors into internal areas. This can lead to water damage to interior finishes and electrical components, causing further structural issues.
Damaged or weakened window and door frames can compromise the overall stability of a building. This can manifest in several ways, including sagging or warped frames, cracked or broken glass and gaps between the frame and the wall. If left unaddressed, these issues can lead to water leaks, air infiltration and even structural failure in severe cases. As a result, prompt attention to any signs of structural damage is crucial to maintaining a building’s safety and longevity.
The visual appeal of a property can be significantly affected by deteriorating windows and doors. Peeling paint, rotting wood, cracked glass and rusted or corroded hardware can detract from a property’s appearance and reduce its value. In addition to affecting curb appeal, cosmetic damage can indicate underlying issues that may compromise the integrity of the window or door.
Poorly sealed windows and doors allow drafts to enter a building, increasing energy consumption and utility bills. Factors such as worn weatherstripping, gaps around the frame and single-pane glass can contribute to energy inefficiency. Property owners can significantly reduce energy consumption and lower utility bills by addressing these issues and upgrading to energy-efficient windows and doors.
Damaged locks, weakened frames or compromised glazing can make your property vulnerable to break-ins and vandalism. Ensuring that windows and doors are secure and in good working order protects your property and its occupants from potential threats.
With over 18 years of industry expertise, our Window and Door Repair consultants at MJ Engineering Projects deliver tailored solutions designed to restore performance, safety, and compliance. We are recognised for our precision in identifying underlying issues and implementing effective repair strategies that extend the life of building assets.
Our approach integrates innovative methods with proven industry practices to achieve the highest quality outcomes. By aligning every stage of the process with client expectations and compliance requirements, we ensure reliable, cost-effective solutions. Our process involves a structured pathway of inspection, planning, tendering, and management, providing clarity and confidence.
A professional engineer will typically conduct a visual inspection and use specialised tools to check non-conformances and diagnosis the issue.
Various repair options are available for window and door issues, depending on the severity and nature of the problem. Some typical repairs include:
Sliding door repairs — We use specialised sealing methods and high-quality waterproofing materials to create a reliable barrier against wind-driven rain. Our experts on sliding door repairs in Sydney ensure the waterproofing detailing is meticulously applied, protecting against lateral water seepage beneath the door frame. From identifying vulnerable points to implementing precise solutions, we handle each repair with precision and durability.
Moreover, replacing damaged components, such as rollers, tracks or locks, can restore the smooth operation of sliding doors and improve security. This repair is essential to ensuring the proper functioning of the waterproofing system and preventing water ingress.
Door glass repairs — Cracked or broken glass panes can compromise a door’s structural integrity, energy efficiency and security. Replacing the damaged glass can resolve these issues and restore the door’s appearance.
Window and door restorations — Repainting or refinishing frames, replacing weatherstripping and repairing hardware can rejuvenate the appearance and performance of windows and doors. This can also improve these components’ energy efficiency and functionality.
Window and door screen repair — Damaged screens can compromise ventilation, pest control and security. Replacing or repairing screens can restore their functionality and improve overall performance.
It’s important to note that repairing the window or door may not be enough sometimes, and a total replacement may be necessary. A qualified door and window specialist like MJ Engineering Projects can assess the situation and provide the most appropriate repair or replacement options.
Commercial buildings demand durable and compliant window and door systems to ensure safety, security, and performance. Our remedial superintendent services provide technical expertise to identify faults and deliver tailored repair solutions that minimise disruption to business operations. We ensure all works comply with the NCC and relevant Australian Standards, while managing the project’s financial and contractual requirements.
In addition to technical oversight, our team coordinates closely with contractors, building managers, and stakeholders to keep projects on track. Acting as the client’s representative, we ensure that timelines and quality expectations are met, providing consistent reporting and transparent communication. This approach ensures that every stage of the repair process is handled efficiently, safeguarding asset value and long-term performance.
Residential window and door repairs require careful attention to occupant safety, energy efficiency, and aesthetics. Our remedial superintendent services support strata managers, owners corporations, and homeowners by diagnosing underlying issues and overseeing high-quality repairs that restore function and compliance. We ensure the works meet all relevant NCC and Australian Standards, providing confidence in long-term building performance.
We act as the central point of communication, coordinating with contractors, consultants, and strata managers to keep the project running smoothly. Our team ensures works are carried out in line with budget and agreed timeframes, while prioritising quality and safety. By bridging the gap between technical requirements and client needs, we deliver reliable and cost-effective outcomes that protect residential property value and occupant wellbeing.
With more than eighteen years of proven experience in remedial engineering, our firm has built a strong reputation for delivering reliable and long-lasting results. As registered design practitioners, we specialise in repairing building defects across a wide range of projects, from heritage façades that require delicate restoration to modern high-rise towers that demand technical precision.
Our structured project management approach, combined with thorough quality control processes, ensures every repair is handled with efficiency and care. We focus on minimising disruption, controlling costs and tailoring repair strategies to meet the unique requirements of each client.
This commitment to detail and excellence enables us to consistently provide durable, value-driven solutions that stand the test of time.
Our engineers bring extensive expertise in remedial engineering, supported by years of specialised experience and a detailed understanding of industry standards. We take pride in delivering tailored remediation strategies that address both visible and hidden defects across a wide range of building types.
By staying informed of changing regulations and compliance requirements, our team ensures every project achieves technical excellence and long-term durability. We also place a strong emphasis on sustainability, applying environmentally responsible practices and innovative methods wherever possible.
From diagnosing complex issues to implementing cost-effective repair programs, we are committed to providing clients with outcomes that are reliable, compliant and built for the future.
We have successfully completed inspections and remedial work on more than one thousand residential, commercial and industrial buildings across Sydney. This extensive experience allows us to identify and resolve issues with accuracy, from water ingress and façade deterioration to concrete spalling and structural concerns.
Each project benefits from a customised repair strategy designed to achieve durability, compliance and lasting performance. Our large and diverse portfolio equips us to anticipate challenges, optimise resources and streamline delivery to minimise site disruption.
With this proven track record, we are confident in managing projects of any scale or complexity, delivering solutions that are efficient, cost-effective and built to endure.
Don’t let window and door defects undermine the safety and value of your property. Take proactive steps today by choosing MJ Engineering for comprehensive remedial services by our industry-leading remedial consultants in Australia.
With over 18 years of industry-leading experience and a track record of inspecting and protecting over 1,000 buildings in Sydney, we offer unmatched expertise and reliable solutions tailored to your specific needs. If you have any questions, contact our team, who will be happy to assist.
With over 15 years of specialist experience, MJ Engineering Projects delivers unmatched quality and precision in every window and door repair. Our expert team offers personalised service and a quick turnaround, ensuring your property is secure, efficient and aesthetically restored. Whether you need sliding door repairs in Sydney or comprehensive solutions for windows and doors, you can trust us for top-quality workmanship.
Servicing Sydney, Newcastle and Canberra, we bring tailored solutions to each project, adapting to your needs. Contact us for a consultation with our window and door specialists today and experience our trusted expertise firsthand.
Project Budget: $1,000,000
Client: Owners Corporation
Remedial works at Kensington tackled persistent balcony leaks, blocked scuppers and early concrete decay that were staining interiors and increasing insurance risk. MJ Engineering...
Project Budget: $2,800,000
Client: Owners Corporation
MJ Engineering Projects served as superintendent and adviser on remedial works for an eight-storey, fifty-unit apartment building in Wollstonecraft. The concrete-frame, brick-infill structure suffered...
Project Budget: $1,400,000
Client: Owners Corporation
MJ Engineering Projects supervised remedial works on a concrete-frame, brick-infill building in Pymble. The structure, supported by four principal columns and standing three floors...
MJ Engineering Projects conducts waterproofing repairs to find and rectify the sources of water penetration into the building.
MJ Engineering Projects conducts a tender process with several specialised remedial contractors to ensure the best fit for the job.
MJ Engineering Projects provides an in-depth specification to ensure remedial rectification works are completed in a methodical manner.
MJ Engineering Projects acts on behalf of the client for all Remedial Building Services to ensure the contractor completes a smooth rectification process.
MJ Engineering Projects conducts an inspection of your assets and provides a maintenance regime plan to optimise cost savings.
MJ Engineering Projects conducts floor topping investigations and repairs to prevent and rectify corrosion to the internal concrete slab.
MJ Engineering Projects conduct inspection reports that highlight building defects and recommend rectification methods.
MJ Engineering Projects conducts facade rejuvenation to ensure optimal performance and appearance of the building.
MJ Engineering Projects specialises in delivering thorough and litigation-compliant expert witness reports for construction claims, tailored for building dispute resolution cases.
MJ Engineering Projects conducts diagnostic investigations prior to remedial works to search for any potential building deficiencies.
MJ Engineering Projects provides expert design practitioner services, specialising in regulated designs and technical specifications for Class 2, 3, and 9c buildings.
MJ Engineering Projects conducts concrete corrosion repair as part of its Remedial Building Services to return the structure to its sound and safe state.
MJ Engineering Projects conducts rectification of existing cladding that is both unsafe and non-compliant with the BCA.
MJ Engineering Projects conducts ballustrade rectification to ensure compliance to the BCA and safety to the public and building occupants.
MJ Engineering Projects specialises in expert balcony repairs, ensuring safety, compliance, and long-lasting solutions tailored to your property needs.
Key Concerns and Frequently Asked Questions About Window and Door Repair Services in Australia
Everything you need to know about MJ Engineering Projects. Can’t find the answer you’re looking for?
Chat With Our Team Now.
When undertaking window and door repairs, it’s essential to consider compliance codes to ensure the work’s safety and quality. For example, Australian Standard AS 1288-2006 outlines the requirements for glass installation in buildings, including specific provisions for various types of door glass replacement. Compliance with relevant standards ensures that repairs are carried out to the highest level of safety and quality, protecting both the property owner and occupants.
Engaging a remedial engineer like MJ Engineering Projects ensures your window and door repairs are completed to the highest standard. We provide expert inspections, detailed repair specifications, and project management to guarantee compliance with relevant codes and standards. Our team oversees the entire process, from tendering to quality assurance, delivering cost-effective and long-lasting solutions. With professional guidance and preventative advice, we help protect your property’s safety, performance, and value well into the future.
There are several signs that indicate your windows or doors may require professional repair. These include persistent drafts, water leaks during heavy rain, visible cracks or deterioration, corrosion around frames, or difficulty when opening and closing. You may also notice condensation between glass panels or reduced energy efficiency. These issues can compromise both safety and comfort within the property. Addressing them early with expert guidance prevents larger structural concerns and protects your investment.
Yes, repairs can significantly extend the lifespan of windows and doors. Many common issues such as leaks, corrosion, or misalignment can be effectively resolved without replacement. Professional remedial services ensure the underlying problems are corrected and prevent further deterioration. By addressing defects early, you not only restore functionality and security but also avoid the cost and disruption of unnecessary replacements. Well-executed repairs maintain performance and help preserve the overall value of your property.
In cases where windows or doors are too damaged for repair, we provide tailored replacement solutions. Our team carefully assesses the condition and recommends suitable options that comply with all relevant building codes and Australian Standards. We ensure replacements integrate seamlessly with the existing structure and match the building’s appearance. Whether it’s a single unit or a larger rectification project, our solutions are practical, durable, and designed to maintain both safety and aesthetics.
The timeframe depends on the extent of the damage and the scope of works required. Minor issues such as resealing or hardware adjustments may be completed within a few hours. More extensive repairs involving replacements, structural adjustments, or multiple units can take several days. At the outset, we provide a clear schedule that sets out anticipated timeframes. This ensures transparency, minimal disruption to occupants, and confidence that your project will be delivered on time.
MJ Engineering Projects is a remedial-engineering leader, complemented by in-house structural and civil engineering expertise.
MJ ENGINEERING PROJECTS PTY LTD, 2025. All Rights Reserved. (ACN 123 818 511) (ABN 34 123 818 511)