Cost post-construction cleaning.

For UK homeowners, investing in a professional clean ensures that microscopic dust particles—which can linger in carpets and ventilation for months—are properly extracted. This guide breaks down the costs, timelines, and essential checks for hiring a specialist clearance and cleaning team.

What Does the Work Involve?

• Debris Clearance: Removal of leftover packaging, protective films, and small-scale construction waste.
• Industrial Vacuuming: Use of HEPA-filtered or M-Class vacuums to capture fine masonry and plaster dust from all surfaces.
• Surface Scrubbing: Deep-cleaning of walls, ceilings, and joinery to remove "dust film" that regular sprays cannot lift.
• Specialist Residue Removal: Carefully scraping or dissolving paint spots, silicone overspill, and grout haze from new tiles and glazing.
• Internal Glazing: Cleaning windows, frames, and sills to a smear-free finish.
• The "Sparkle" Clean: A final polish of chrome fixtures, mirrors, and cabinetry to ensure the property is move-in ready.

Typical Costs

Most after-builders cleaning companies provide a fixed quote based on the number of rooms or square footage, though some charge hourly for smaller snagging jobs. Prices usually include specialist chemicals and industrial equipment.

Prices are influenced by the level of "heaviness" of the clean. A property with significant plaster dust and floor protection still in place will cost more than a site that has been roughly swept by the builders.

How Long Does It Take?

• Single Room / Extension: 4 to 6 hours for a thorough deep clean.
• 2-3 Bedroom House: 1 full day (8–10 hours) with a team of two professionals.
• Large Renovations (4+ beds): 2 to 3 days, often staged to allow for final snagging.
• Waste Clearance: Usually completed within 1–2 hours if using a "wait and load" service.

DIY or Professional?

While you can clean a renovation yourself, domestic vacuum cleaners are rarely up to the task. Fine construction dust can burn out standard motors and quickly clog filters, leading to the dust simply being recirculated into the air.

Professional cleaners use M-Class dust extractors and industrial-grade solvents that safely remove grout haze without scratching new porcelain or stone tiles.

If your project involved structural work, professionals will also be better equipped to handle high-level cleaning and the removal of hazardous residues. However, for very minor cosmetic updates, a DIY approach with a rented industrial vacuum may suffice.

Choosing the Right Tradesperson

• Verify Insurance: Ensure they have Public Liability insurance that specifically covers accidental damage to new surfaces (e.g., scratching a new stone worktop).
• Waste Carrier Licence: If they are removing construction debris, they must hold a valid Waste Carrier Licence from the Environment Agency.
• Check Equipment: Ask if they use HEPA or M-Class vacuums to ensure dust is actually removed, not just moved around.
• Ask for a "Snagging" Policy: Will they return for free if dust settles 24 hours later? (A common issue in new builds).
• References: Look for reviews specifically mentioning "after-builders" or "post-construction" work, as this requires different skills to a standard weekly clean.

UK Regulations

• Waste Disposal: Under the Duty of Care legislation, you are responsible for ensuring your waste is disposed of by a licensed carrier. Always ask for a Waste Transfer Note.
• COSHH: Professionals should follow "Control of Substances Hazardous to Health" (COSHH) regulations when using heavy-duty brick acid or industrial degreasers.
• Health & Safety: If the site is still "active" (builders are still there), cleaners must often wear PPE, including steel-toe boots and high-visibility vests.

Common Problems

• Cleaning Too Early: If decorators or floor layers are still working, the "settle" of new dust will ruin a professional clean within hours. Always book the clean for 24-48 hours after the last trade leaves.
• Grout Haze: If not removed with the correct acidic cleaner promptly, grout haze can become a permanent stain on tiles.
• Scratched Glass: Using incorrect scrapers to remove paint from windows can cause permanent damage. Pros use specific glass-safe blades.
• Hidden Dust: Dust often hides on top of door frames, inside light fittings, and behind radiators. A poor-quality clean will miss these areas, leading to dust reappearing for weeks.

Frequently Asked Questions