There is a large number of old residential areas and second-hand houses, and many of the doors and windows have been in use for over 10 years, resulting in issues such as aging, deformation, air leaks, water leaks, poor sound insulation, and poor thermal insulation. Replacing windows in old houses is the most direct and cost-effective way to enhance living comfort and improve the quality of life. However, many homeowners are concerned: Is replacing windows in old houses troublesome? Will it damage the decoration? How long will the project take? How to choose a reliable service? Today, Lan-system Doors and Windows will explain in detail the entire process of replacing windows in old houses, so that you can easily and worry-free replace your old windows with new ones in one step.

Firstly, the core value of replacing windows in old houses lies in addressing air and water leaks, enhancing sound insulation, improving thermal insulation performance, elevating safety standards, and beautifying the appearance of the home. Many old houses are equipped with outdated aluminum alloy windows and plastic steel windows, which suffer from poor sealing, inadequate sound insulation, and lack of security. These windows allow cold winds to penetrate in winter and hot air to enter in summer, and they are prone to water infiltration during rainy seasons. After replacing these windows with system doors and windows, the living experience is directly doubled.

The standard process for window replacement in Lance's old house is transparent, efficient, and hassle-free throughout the entire process:

Free on-site measurement. Professional technicians will visit your home to measure, inspect the condition of old windows, wall structure, window sill height, and exterior wall material. Based on the layout, orientation, and owner's requirements, we will design the most suitable door and window plan.

Scheme design and quotation. Based on the measured data, we will provide a floor plan, design renderings, and a detailed quotation list, specifying all items including profiles, glass, hardware, screen windows, waterproofing, installation, etc. The pricing is transparent with no hidden costs.

Confirm the signing of the contract. The contract specifies the dimensions, configuration, price, duration, and after-sales service. After both parties confirm that there are no errors, production will be arranged.

Demolition and protection. Before installation, comprehensive protection measures should be taken for the ground, walls, furniture, and home appliances to avoid bumps, scratches, and dust pollution. The demolition process should be standardized, avoiding violent demolition and damaging walls, windowsills, and tiles.

Waterproofing treatment. Old houses often suffer from aging issues in their walls. Before installation, Lan-system conducts professional waterproofing base treatment, including window sill slope making, exterior wall sealing, and waterproof coating, to prevent future water leakage at its source.

Standardized installation. Each step of the process, including lifting, positioning, fixing, leveling, filling, and sealing of the new window, is carried out according to standards. The space between the window frame and the wall is filled with foam agent, and sealed with external weather-resistant glue to ensure stability, sealing, and waterproofing.

Debugging and cleaning. After installation, debug switches, hardware, and lock points to ensure smooth operation. Clear away on-site garbage and dust, restore the home to cleanliness, and ensure it does not affect the normal life of the homeowner.

Acceptance and after-sales service. The owner conducts on-site acceptance and signs after confirmation. Lan-system provides comprehensive after-sales service, and promptly responds to and resolves any issues that arise.

The entire process of window replacement for old houses can usually be completed within 1-2 days. It involves silent operation, does not disturb residents, and does not damage the decoration, making it very suitable for families who have already moved in, families with elderly members and children, and working-class families.

The choice of materials for window replacement in old houses is crucial. Old houses are mainly multi-story and small high-rise buildings, some of which are close to roads and elevated roads. It is recommended to choose system bridge-cut aluminum windows + triple-layer insulating glass, which have the best sound insulation, heat preservation, and sealing effects. For families with limited budgets, high-quality bridge-cut aluminum windows can be chosen to meet basic needs. The wall thickness of the profile is recommended to be above 1.8mm for safety and stability; hardware should be brand-name products, durable and free from malfunction; glass must be 3C tempered, safe and explosion-proof.

Lance Doors and Windows has specifically optimized its window replacement plan for the characteristics of old houses: for the loose walls of old houses, it strengthens fixation and waterproofing; for the smaller layouts, it designs styles with better views and stronger lighting; and for the property management standards of old residential areas, it provides colors and patterns that meet the requirements.

Many homeowners are concerned about the high cost of replacing windows in old houses. However, as a local manufacturer with direct sales, Lance offers an extremely high cost-performance ratio. With the same configuration, our products are about 30% cheaper than those sold in stores. We provide free measurements, free design, free demolition of old windows, and free cleaning. There are no middlemen to add extra costs, and no gimmicks or pushy sales tactics.

When replacing windows in old houses, choosing a local brand is more reliable. Lan-system Doors and Windows serves a large number of old residential areas and has rich experience in replacing windows in old houses. They are familiar with various old house structures, installation difficulties, and property management requirements, ensuring stable installation quality and good reputation among homeowners.