Drafty windows occur when outside air seeps indoors through gaps and cracks, disrupting the indoor temperature. Although it may seem like a minor issue, it can noticeably affect comfort and place extra strain on heating and cooling systems. Unwanted air flow can also accelerate rusting, increase condensation and contribute to moisture-related damage. Fortunately, there are several drafty window solutions, ranging from quick, budget-friendly fixes to more permanent, long-term options.
How to Check Drafty Windows
Before considering either costly repairs or economical fixes for drafty windows, it is important to check their condition. Methods to check drafty windows include:
- Candle Flame Test: Light a candle or incense stick near the window. If the flame flickers or the smoke shifts, it indicates air leakage.
- Paper Test: Place a sheet of paper between the window seals and close it. If the paper slips out easily, the seal is not tight and air is leaking.
- Visual Inspection: Check for visible cracks, gaps, worn weatherstripping or missing caulk around the frame.
- Feel for Airflow: Hold your hand near the window edges to detect drafts. Moisture or noticeable airflow suggests leakage.
- Thermal or Infrared Camera: Use a thermal device to identify temperature differences around the window where cold air enters.
- Fan and Smoke Test: Seal doors and windows, run exhaust fans to create pressure differences and use smoke to trace where drafts begin.
Solutions for Drafty Windows on Every Budget
Solutions for drafty windows range from simple DIY fixes to professional treatments. Below are some of the most effective options available for every budget.
Lock Windows and Apply Weatherstripping
Locking windows and applying weatherstripping is a simple yet effective solution for reducing energy loss, one of the major reasons for high electricity bills. Start by installing window-specific locks such as pin locks or folding latches to ensure a tighter seal. Next, clean the window frames and latches thoroughly.
Measure the length of the window and cut the weatherstripping material to size. Press it firmly along the frame to eliminate gaps, then secure it by nailing or sticking it in place, depending on the type of material used.
Average Material Cost
- Window locks: AED 20 to AED 40
- Weatherstripping: AED 20 to AED 60
Seal Cracks With Clear Nail Polish
Using clear nail polish is one of the cost-effective solutions for drafty windows. It is an effective method to fill small cracks and minimise energy loss, helping lower electricity bills.
Begin by cleaning the area with rubbing alcohol or a mild detergent and allow it to air-dry for at least 30 minutes. Apply a thin layer of nail polish directly over the crack, starting from one end and moving gradually to the other. Let it dry for about 20 minutes, then repeat the process until the crack is fully sealed. Once finished, lightly sand the surface for a smooth finish. It’s important to use regular, clear nail polish, as peel-off formulas will not provide an effective seal.
Average Material Cost
- Nail polish: AED 10 to AED 50
Fill Gaps to Seal Windows
Filling gaps with a backer rod or silicone sealant is an effective solution for larger cracks. A quick way to check suitability is to insert a finger into the gap—if it fits, these materials are appropriate. Begin by cleaning the area with a damp cloth or rubbing alcohol and allow it to air dry completely.
Measure the length of the gap and cut the backer rod or prepare the sealant accordingly. Insert the material firmly into the gap using a knife or a long tool such as a screwdriver. Allow it to set as recommended by the product manufacturer, then finish with a coat of paint for a neat appearance.
Average Material Cost
- Backer rod: AED 15 to AED 70
- Silicon sealant: AED 20 to AED 45
Apply Temporary Caulk
Different types of caulk are available, each suited to specific sealing needs. For permanent results, silicone caulk is a reliable choice, while rope or peelable caulk works well for temporary seals that can be removed easily.
Clean, air-dry and place masking tape along the edges of the frame to create neat, straight lines. Position the caulk tube at one end of the crack and apply it slowly, filling the gap bit by bit until sealed. Dampen your finger with soapy water and smooth the caulk for an even finish, then remove the masking tape and trim any excess for a clean result.
Average Material Cost
- Temporary caulk: AED 10 to 15
- Masking tape: AED 2 to AED 10
Insulate Windows With Plastic
Plastic window insulation is a cost-effective and efficient way to reduce drafts. The plastic film creates an insulating air pocket that seals gaps and minimises energy loss.
Measure the plastic sheet about one inch larger than the window frame. Apply double-sided tape around the frame and carefully attach the plastic, ensuring it is smooth and free of bubbles or wrinkles. Use a hairdryer on medium to low heat to shrink the film, then trim the edges for a neat look.
Average Material Cost
- Window plastic: AED 20 to AED 60
Layer Window Treatments
Layered window treatments combine different types of curtains, blinds and shades to effectively reduce drafts. The extra layers create an insulating air pocket that minimises the energy loss.
Start with a base layer of cellular shades or blinds, add a second layer of thermal curtains and finish with a light sheer fabric for style and versatility.
Average Material Cost
- Thermal curtain: AED 100 to AED 250
- Thermal blinds: AED 40 to AED 60
- Sheer window curtain: AED 25 to AED 90
Reglaze Loose Windowpanes
Another drafty window solution is reglazing, which restores the seal between the glass and frame, preventing air leaks and improving insulation.
Begin by carefully removing the window sash and cleaning the frame to eliminate dirt, grime and old glazing. Knead the glazing putty in your hands until soft, then roll it into a thin strip. Press it firmly around the glass at a 45-degree angle and smooth it with a putty knife. Allow the putty to cure for 7 to 14 days before applying paint for a proper finish.
Average Material Cost
- Glazing putty: AED 14 to AED 55
FAQs
What is the cheapest way to fix drafty windows?
Applying weatherstripping or using clear nail polish for small cracks are among the most affordable solutions, often costing between AED 20 and AED 60.
How can I temporarily seal a drafty window?
Temporary options include using rope or peelable caulk, plastic film insulation or even clear tape to block air leaks until a permanent fix is applied.
Do thermal curtains really help with drafty windows?
Yes, thermal curtains add an insulating layer that reduces drafts, keeps rooms cooler in summer and helps lower energy loss.
These drafty window solutions are for different budgets, from temporary fixes to long-term improvements. Most of the fixes are DIYs, though professional assistance may be advisable for more complex tasks. A range of solutions listed above are also tenant-friendly, making it easier to restore a rental property in the UAE to its original condition and avoid any complications with the landlord.
Stay connected with dubizzle’s property blog to learn more about home insulation.
