Window and conservatory cleaning

Professional cleaning ensures your home remains bright and energy-efficient while preventing the costly replacement of "blown" double-glazing units caused by neglected frames. This guide covers everything from modern reach-and-wash systems to the specific challenges of conservatory roof maintenance.

What Does the Work Involve?

• External Glass Cleaning: Using de-ionised "pure water" and telescopic poles or traditional squeegees to remove grime and mineral deposits.
• Frame and Sill Detailing: Deep cleaning the uPVC or timber frames, wiping down sills, and clearing debris from window tracks.
• Conservatory Roof Treatment: Specialist removal of moss, lichen, and bird droppings from glass or polycarbonate panels using soft-wash techniques.
• Internal Cleaning: Hand-cleaning interior panes, ensuring no drips on carpets or furniture, and cleaning flyscreens where applicable.
• Detailing: Spot-treating stubborn marks like silicone, paint splashes, or heavy limescale using professional-grade, non-abrasive cleaners.
• Inspection: Checking for failed seals (misting between panes) or blocked drainage holes and reporting these to the homeowner.

Typical Costs

Prices for window and conservatory cleaning vary based on the size of your property, the height of the glazing, and the level of organic growth on conservatory roofs. Most UK professionals charge a minimum call-out fee to cover travel and equipment setup.

Factors that increase the price include leaded or Georgian windows (which take longer to wipe), heavy limescale buildup in hard-water areas, and limited access that requires scaffolding or specialist lifts.

How Long Does It Take?

• Standard Exterior Window Clean: 30 to 60 minutes for a typical 3-bedroom semi-detached house.
• Full Interior and Exterior Clean: 2 to 4 hours, depending on the number of windows and ease of access.
• Full Conservatory Deep Clean: 3 to 6 hours, including the roof, decorative finials, and internal gutters.
• Commercial or Large Detached Properties: Can take a full day or more if specialist access equipment is needed.

DIY or Professional?

While cleaning ground-floor windows is a straightforward DIY task, professional cleaners offer significant advantages for higher storeys and conservatories. Professionals use water-fed pole systems with de-ionised water, which dries streak-free without the need for chemicals or dangerous ladders.

Safety Warning: Conservatory roofs are not designed to take human weight. Professionals use specialist ladders and reach-poles to avoid cracking the panels or falling through.

For any work involving ladders or heights, the Working at Height Regulations 2005 apply. Hiring a professional ensures the job is done safely and includes Public Liability insurance, which most DIYers lack.

Choosing the Right Tradesperson

Not all window cleaners offer the same level of service. To ensure a high-quality finish and protect your property, look for the following:

• Insurance: Confirm they have Public Liability insurance (minimum £1m-£2m) that specifically covers "working at height."
• Method: Ask if they use "pure water" or traditional squeegees. Pure water is better for frames, while traditional is often preferred for interiors.
• References: Look for a tradesperson with a local reputation or check online reviews for reliability and punctuality.

Questions to ask:

• Do you clean the frames and sills as part of the standard price?
• How do you access the conservatory roof, and do you use "walk-on" equipment?
• Are you a member of the Federation of Window Cleaners (FWC)?
• What is your policy if it rains on the day of the appointment?

UK Regulations

• Working at Height Regulations (2005): Tradespeople must avoid work at height where possible and use the safest equipment available (often favouring poles over ladders).
• GDPR: If they store your details for regular monthly rounds, they must comply with UK data protection laws.
• HSE Compliance: Professional cleaners should be able to provide a Risk Assessment and Method Statement (RAMS) upon request, especially for commercial or complex residential jobs.

Common Problems

• Streaking or Spotting: Often caused by using tap water rather than purified water, or by soap residue left in the seals from previous cleans.
• Damaged Seals: High-pressure washers should never be used on windows or conservatories as they can blow the seals and cause misting.
• Scratched Glass: Using abrasive pads or "dry-scraping" debris without sufficient lubrication can permanently damage the glass surface.
• Blocked Drainage: Neglecting the small drainage channels in uPVC frames can lead to water backing up and leaking inside the home.

Frequently Asked Questions

Can windows be cleaned in the rain?

Yes. Modern pure-water systems work perfectly well in light to moderate rain. Since the water is de-ionised and free of minerals, the rainwater doesn't affect the streak-free finish. However, work may be postponed during high winds or thunderstorms for safety reasons.

How often should I have my windows cleaned?

Most UK homeowners opt for a 4-weekly or 8-weekly schedule. Homes near the coast or busy main roads may require monthly visits to prevent salt and soot buildup, while rural properties can often wait 2-3 months.

Why is my conservatory roof turning green?

This is usually algae or moss growth triggered by damp UK weather and overhanging trees. If left untreated, the roots can damage the seals between panels, leading to leaks. A professional "soft wash" will kill the spores and keep it clear for longer.

What is "Pure Water" cleaning?

It is water that has been filtered through a de-ionisation process to remove minerals like calcium and magnesium. Because the water is "hungry" for impurities, it lifts dirt off the glass and dries naturally without leaving any spots or streaks.

Do I need to be home for the cleaner?

If you only require an external clean, most professionals do not require you to be home as long as they have clear access to all sides of the property (e.g., unlocked gates). Payments are typically handled via bank transfer or online portals.