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Expert window maintenance tips by Harrington Windows - keeping your windows in perfect condition
Expert Advice & Tips

Window Maintenance Tips

Essential guidance to keep your windows looking great and performing perfectly for decades

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Expert Guidance
DIY Solutions

Keep Your Windows in Perfect Condition

Regular maintenance extends the life of your windows, improves energy efficiency, and maintains your home's appearance. Follow these expert tips to keep your windows performing at their best for decades.

Regular Cleaning

Clean every 2-6 months using mild solutions and microfiber cloths for streak-free results.

Seasonal Care

Address different window needs throughout the year to prevent weather-related damage.

Hardware Maintenance

Lubricate moving parts and maintain locks to ensure smooth operation and security.

Regular Cleaning: The Foundation of Window Maintenance

Cleaning your windows regularly isn't just about aesthetics—it's essential for maintaining their functionality and prolonging their lifespan. Here's how to do it right:

Frequency Recommendations

Urban Areas

Every 2-3 months due to higher pollution levels

Suburban Areas

Every 6 months in less polluted environments

Coastal Areas

Every 4-6 weeks due to salt exposure

Proper Cleaning Technique

5-Step Window Cleaning Process
  1. 1

    Start with frames

    Always clean the frames first, working from top to bottom. This prevents dirt from dripping onto already cleaned glass.

  2. 2

    Use the right solution

    For frames, use mild soapy water (a few drops of washing-up liquid in warm water). For glass, use a specialized window cleaner or a solution of one part white vinegar to ten parts water.

  3. 3

    Avoid harsh chemicals

    Strong solvents can damage seals, frames, and finishes. Never use abrasive cleaners, especially on coated glass.

  4. 4

    Microfiber is best

    Use lint-free microfiber cloths to prevent streaking. Paper towels can leave residue and lint.

  5. 5

    The right technique

    Clean glass in an S-pattern and dry with a separate clean cloth. This helps prevent streaks and ensures you cover the entire surface.

Professional Tip

Clean windows on cloudy days. Direct sunlight causes cleaning solutions to dry too quickly, leaving streaks before you can wipe them away properly.

Seasonal Maintenance Checklist

Different seasons present unique challenges for your windows. Follow these seasonal tips to ensure year-round protection and performance:

Spring Maintenance

Spring is the ideal time to address winter damage and prepare your windows for warmer months:

  • Inspect for winter damage, particularly to seals and weatherstripping
  • Clean tracks and channels of debris accumulated over winter
  • Check and clear drainage/weep holes to prevent water buildup
  • Lubricate hinges, locks, and handles after cleaning
  • Look for signs of moisture between double glazing panes
  • Replace any damaged weather seals before spring showers
Professional Tip

Keep a maintenance log for your windows. This helps track recurring issues and can be valuable for warranty claims or when planning replacements.

Frame-Specific Maintenance Guide

Different window frame materials require specific maintenance approaches. Follow these material-specific guidelines:

uPVC Window Maintenance

uPVC (unplasticized polyvinyl chloride) frames are popular for their durability and low maintenance, but still require regular care:

  • Clean with mild soapy water and a soft cloth at least twice yearly
  • Never use abrasive cleaners or solvents which can damage the finish
  • Apply a small amount of light oil to hinges, locks, and moving parts annually
  • Check and clean drainage holes to prevent blockages
  • For stubborn stains, use a specialized uPVC cleaner
  • Avoid painting uPVC frames as paint doesn't adhere well and voids warranties

Timber Window Maintenance

Timber windows add character and warmth to properties but require more attention to protect against the elements:

Maintenance Schedule

Inspect timber windows annually, with repainting/resealing every 3-5 years depending on exposure.

  • Inspect annually for signs of rot, warping, or paint failure
  • Clean frames with a damp cloth and mild detergent
  • Sand any rough areas before repainting or resealing
  • Use microporous paints that allow the timber to breathe
  • Pay special attention to joints and end-grain where moisture can penetrate
Professional Tip

Always check your window manufacturer's guidelines for specific maintenance recommendations. Using incorrect cleaning products can void warranties and cause premature deterioration.

Hardware and Mechanism Care

Window hardware and operating mechanisms need regular attention to function smoothly and securely. Proper maintenance prevents costly repairs and ensures security:

Hinges & Mechanisms

  • Clean tracks with small brush and vacuum
  • Apply silicone spray to hinges and tracks
  • Avoid WD-40 which attracts dust
  • Adjust screws if hinges are loose

Locks & Handles

  • Check lock alignment and tighten screws
  • Clean mechanisms with small brush
  • Apply graphite lubricant to key slots
  • Replace damaged handles promptly

Weather Seals & Gaskets

  • Check for cracks or tears regularly
  • Clean with mild soapy water
  • Apply silicone spray to maintain flexibility
  • Replace damaged seals promptly
When to Call a Professional

If your window mechanisms aren't operating smoothly after cleaning and lubricating, or if locks aren't engaging properly, it's time to call a professional. Security issues should always be addressed immediately by qualified technicians.

Troubleshooting Common Window Problems

Even with regular maintenance, window issues can arise. Here's how to diagnose and address common problems before they require professional intervention:

Condensation Between Panes

Cause

Failed seal in double/triple glazing unit

Check

Condensation between panes (not on the surface) that can't be wiped away

Fix

Professional glazing unit replacement required (not DIY)

Drafts Around Windows

Cause

Damaged weatherstripping, warped frames, or poor installation

Check

Hold a lit candle or incense stick near edges on a windy day

Fix

Replace weatherstripping, apply caulk or use draft excluders

Difficult Operation

Cause

Dirt in tracks, misalignment, or hardware issues

Check

Examine if the window is square in the frame and check for obstructions

Fix

Clean tracks, lubricate hardware, adjust hinges, tighten screws

Interior Condensation

Cause

High indoor humidity combined with cold window surfaces

Check

Measure indoor humidity (should be 30-50%)

Fix

Improve ventilation, use dehumidifiers, or upgrade windows

When to Replace Rather Than Repair

Consider window replacement if you notice these issues:

  • Extensive rot or decay in timber frames
  • Multiple seal failures in double/triple glazing
  • Significant warping or distortion of frames
  • Condensation between glass panes
  • Windows over 20 years old with multiple issues
  • Rising energy bills despite proper maintenance
Energy Efficiency Tip

When considering repairs versus replacement, factor in potential energy savings. Modern windows with advanced glazing can reduce heating bills by 10-25% compared to older single or basic double glazing.

When to Call the Professionals

While many maintenance tasks can be handled by homeowners, some situations call for professional expertise. Here's when to call in the experts:

Situations Requiring Professional Help

  • Broken or cracked glass

    Requires proper handling and precise installation

  • Failed double glazing seals

    When condensation appears between glass panes

  • Structural issues

    Problems with window frame or surrounding wall

  • Complex mechanism failures

    Especially in tilt-and-turn systems

  • Significant water leakage

    Around windows during rainfall

  • Listed buildings

    Any window issues in conservation areas

  • Operational failures

    Windows that won't open or close despite DIY attempts

  • Security concerns

    Locks or security hardware not functioning properly

Schedule a Professional Maintenance Check

Our expert technicians can perform a comprehensive window assessment to identify and address issues before they become costly problems.

  • Annual service plans available
  • Expert mechanism adjustments
  • Seal and glazing unit replacement

Taking Care of Your Investment

Regular window maintenance is a small investment of time that yields significant returns in terms of window longevity, home comfort, and energy efficiency. By following these guidelines and scheduling professional help when needed, you can ensure your windows continue to perform optimally for decades.