How to Check the Windows & Doors When Buying a New Home

When purchasing a property, it’s important to thoroughly inspect any windows and doors for any issues that could impact the properties energy efficiency, security and yours or your future tenants comfort.

If you overlook problems like water damage, stiff windows, single glazing, poor insulation or indoor water damage then you may need to fork out for costly repairs in the future. 

Whether you’re buying a new build or a period property, knowing how to inspect your windows and doors ensures that your purchase is both functional and aesthetically sound.

Why Is Inspecting Windows and Doors Important When Buying a Home?

The condition of a home’s windows and doors can reveal a lot about the property’s overall shape. 

Energy Efficiency and Costs

When windows and doors have been neglected, they can cause energy inefficiencies. Air can leak and low efficiency windows can lead to higher heating and air conditioning costs. Modern window features like double and triple glazing help to reduce these costs, so ensuring the house has double glazed windows as a minimum is super important. 

Also check the draught proof seals around the window or door for any gaps or tears, these can allow water into the frame which can lead to rotting. 

Structural Integrity

If the windows are in poor condition, this may indicate a deeper structural issue. 

For example, timber frames that show signs of warping or rotting can mean that they have been exposed to moisture for a long time, which may indicate a much more serious issue.

Aesthetic and Practical Value

The visual and functional state of the windows will affect the property’s visual appeal and its usability. Glass that is cracked, paint that is peeling or mechanisms (like sash window pulleys) that are jammed all reduce their practicality and will require replacement or repair. These problems are often seen in period properties, so ensure to make a note of anything out of the ordinary that you see. 

Security and Safety

Robust locks, frames and glazing is super important for home security. Weak or damaged security features will make the home vulnerable to break-ins. Windows and doors need to open and close properly. This is particularly crucial in the event of a fire, as you need a dependable escape route.

On your viewing, inspect all of these features to ensure that your future property is energy-efficient, functional and safe. 

Step-by-Step Guide to Inspecting a Window

Step 1: Examine the Frame Material

• Closely inspect the frame: Check for any signs of rot, warping or cracks in the timber. If the windows are UPVC, check for discolouration or cracks
• Test the integrity: Press on the frame to make sure it’s solid and doesn’t bend

Step 2: Inspect the Glazing

• Check for condensation: Look for any signs of fogging between the panes of glazing. This may indicate a broken seal
• Check the glass: Look for any cracks, scratches and chips. Check energy efficiency labels (if provided) and any certifications

Step 3: Check the Seals and Insulation

• Check the weatherstripping: Run your fingers along the seal to check for any tears, gaps or parts where it has become detached
• Feel for draughts: If it’s windy when you’re doing your viewing, run your hands around the edge of the window to see if you can feel a draught

Step 4: Test Window Functionality

• Open and close the window: For a casement, open it as usual and make sure it doesn’t swing when left open. For a sash window, test the sliding mechanism and make sure it’s balanced.
• Check locking mechanisms: Test locks and latches to ensure that they work and are secure

Step 5: Look for Signs of Damage

• Check the paint: Check for peeling paint, joints that move or moisture stains. These can all show long term neglect
• Check external features: Examine if the frames show cracking on the outside, same for the trims and caulking 

Step 6: Consider Maintenance Needs

• Evaluate upkeep requirements: It’s normal for older wooden frames to need re-sanding and painting. Identify whether any bigger repairs are needed and how quick they need doing

Step-by-Step Guide to Inspecting a Door

Step 1: Examine the Door Material

• Check for damage: For wooden doors, check for cracks, dents or warping. For UPVC check for discolouration and brittleness
• Feel for sturdiness: Knock on the door in different places to check that it feels solid

Step 2: Check the Frame and Surrounding Area

• Inspect the frame: Look for separation from the wall. This can be a big cause of poor energy efficiency and often indicates the need for a replacement
• Examine weatherstripping: Run your fingers along the edges of the frame to check for  gaps, tears, or missing seals

Step 3: Test Door Functionality

• Open and close the door: Ensure it moves smoothly on its hinges without sticking. Listen for squeaks and make sure there’s no stiffness
• Test locks and latches: Use all of the locks to make sure they are functional and secure. Multi-point locking systems should work without resistance

Step 4: Look for Signs of Draughts and Insulation Issues

• Check for draughts: On a windy day, run your hand along the door’s edges to feel for draughts
• Inspect the threshold: Look at the bottom of the door to ensure the seal or threshold strip is intact and blocking any draughts or water

Step 5: Assess External Features

• Check external paint or finish:Look for paint peeling, bubbling or any water stains. 
• Inspect door furniture: Check ironmongery for rust, damage, or wear. Ensure they are firmly attached.

Step 6: Consider Maintenance Needs

• Evaluate the upkeep required: Wooden doors may need periodic sanding and varnishing. Identify any immediate repairs like replacing hinges or seals.

Expert Inspections

When to Call an Expert

• Why hire a professional?: Yes, visual inspections can identify surface level problems, but a specialist can help detect any hidden issues like faulty double glazing, poorly aligned doors or frame weakness. 
• Understanding compliance and safety: A professional can ensure that all your windows and doors meet building codes, energy standards and security requirements. For period properties, experts can verify compliance with conservation guidelines. 
• When inspections are essential: If you notice persistent draughts, condensation, or visible damage, call an expert for peace of mind in high-value transactions.

Cost Estimates and Negotiation Tips

• Using inspection results in negotiations: If you have a professional evaluation you can use this as negotiation power for a price reduction, or could even get the seller to contribute to making the necessary fixes. Highlighting any issues like failing seals, rotting frames, or outdated single glazing strengthens your case
• Breaking down cost estimates: Professionals can give you detailed estimates for repairs or total replacements, helping you assess the cost of potential improvements. 

Energy Efficiency and Sustainability

How to Assess Efficiency Levels

• Tools to measure U-values and energy ratings for windows and doors: U-value is a key measure of thermal performance. To assess efficiency, you can use thermal imaging or consult product labels that show U-values, often seen on double or triple-glazed units. Some specialists can also conduct assessments using specialised equipment.
• Sustainable materials: Check if the materials used in windows and doors are sustainably sourced. Wood from sustainable and certified forests, UPVC that is recyclable, or low-carbon manufacturing processes all contribute to reducing your home’s carbon footprint.

Benefits of Upgrading to Energy-Efficient Options

• Cost savings post purchase: Energy efficient windows and doors, such as the timber sash windows and casement windows from Todi & Boys, significantly lower your energy bills by improving insulation. The savings from reduced bills can offset the initial investment of the windows. 

Energy Efficiency Standards for UK Properties

• Energy efficiency standards for landlords: All rental properties in the UK must meet a minimum energy efficiency rating of ‘E’ under the Energy Performance Certificate standards. If you are a landlord, it’s essential to ensure that windows and doors are properly insulated, failure to comply can lead to penalties and reduced rentability

Additional Tips for Evaluating Windows and Doors

Matching Style to Functionality

• Ensuring windows and doors suit the property’s architecture: Select designs that match with the overall character of the house.
• Examples of bespoke options from Todi & Boys Joinery: We specialise in custom-designed windows and doors that suit both modern and period properties. From elegant wooden sash windows to modern looking French doors, we have options that will improve your property’s aesthetic and energy efficiency. 

Custom Solutions for Older Homes

• Challenges of maintaining period properties and meeting conservation regulations: Older homes often come with specific requirements, particularly when preserving historical details. These properties may be subject to conservation area regulations, which can limit the types of windows and doors you can install.
• Tailored upgrades like timber sash windows and French doors: Todi & Boys Joinery offers custom timber solutions, such as heritage-style sash windows and external French doors, that meet conservation requirements while enhancing the property’s energy efficiency and aesthetic appeal.

Before buying a home, inspecting the condition of windows and doors is crucial to avoid hidden repair costs and ensure energy efficiency. Prioritising maintenance, energy ratings, and functionality will help you make a wise investment.

If you’re looking for bespoke solutions tailored to your home’s style and needs, we offer expert advice and custom-made windows and doors to suit any property, ensuring both aesthetic appeal and optimal performance. Contact us for more information.