Ceiling replacement and painting

For UK homeowners, this process involves a combination of messy demolition, skilled plastering, and precision decorating. Getting the finish right requires a systematic approach to ensure the new surface is perfectly flat, durable, and ready for a flawless coat of emulsion.

What Does the Work Involve?

• Site Protection: Clearing the room or covering all furniture and floors with heavy-duty plastic sheeting and drop cloths to manage significant dust.
• Inspection & Removal: Identifying the cause of damage and removing old plasterboard or lath and plaster sections safely.
• Structural Check: Inspecting joists for rot or damp before installing new boards.
• Boarding: Fixing new 12.5mm plasterboard to the joists using zinc-coated screws, ensuring all edges are supported.
• Taping & Jointing: Applying scrim tape to joints to prevent future cracking.
• Plastering: Applying a two-coat multi-finish skim to create a glass-smooth surface.
• Mist Coating: Applying a diluted "mist coat" of emulsion to the new plaster to seal it once dry.
• Top Coating: Applying two full-strength coats of high-quality ceiling emulsion, usually in a flat matt finish.

Typical Costs

Prices for ceiling replacement vary based on the room size, the height of the ceiling, and whether you are removing old lath and plaster, which is significantly more labour-intensive than modern plasterboard.

Factors affecting the price include the age of your property (pre-1930s homes often have lath and plaster), the presence of decorative coving that needs replacing, and the number of light fittings or recessed spotlights that require cutting out.

How Long Does It Take?

• Small Patch & Paint: 1 day (including drying time for rapid-set fillers).
• Standard Room Replacement: 3–4 days (Day 1: Removal/Boarding, Day 2: Plastering, Day 3-4: Drying and Painting).
• Large Open-Plan Area: 5–7 days.
• Drying Times: Fresh plaster typically needs 3–5 days to dry before a mist coat can be applied, though this varies by ventilation and heating.

DIY or Professional?

While painting a ceiling is a common DIY task, replacing the boards and plastering is a different matter. Plasterboards are heavy and awkward to handle alone, often requiring a "deadman" prop or a mechanical board lift.

Achieving a perfectly flat, "pimple-free" finish with plaster is a skill that takes years to master; any imperfections will be highlighted immediately by ceiling lights.

Furthermore, if you are moving lights or dealing with ceiling-mounted fans, you must comply with Part P of the UK Building Regulations, which generally requires a qualified electrician. For your safety and the best aesthetic result, hiring a professional team is highly recommended.

Choosing the Right Tradesperson

You may need a plasterer for the installation and a decorator for the finish, though many "Painter and Decorator" firms in the UK employ multi-skilled tradespeople who can do both.

• Check Qualifications: Look for City & Guilds or NVQ Level 2/3 in Plastering or Painting & Decorating.
• Insurance: Ensure they have Public Liability Insurance (minimum £1m-£2m).
• Dust Management: Ask if they use HEPA-filtered dust extractors or "dustless" sanding equipment.
• Waste: Ensure they have a Waste Carrier Licence if they are taking the old ceiling away.

Questions to ask:

• "Will you be using a mist coat before the top coats?"
• "Is waste disposal and skip hire included in the quote?"
• "How will you protect my carpets and furniture from plaster splashes?"
• "Do you recommend over-boarding or a full tear-down?"

UK Regulations

• Asbestos: If your home was built or renovated before 2000, Artex ceilings may contain white asbestos. This must be tested before any sanding or removal.
• Part P (Electrical Safety): Any work involving the removal and re-installation of light fittings should be checked by a competent person.
• Fire Safety: Replacement plasterboard must meet fire rating standards (usually 12.5mm standard board or "FireBoard" for certain builds).

Common Problems

• Visible Seams: Caused by poor joint taping or insufficient sanding. This is a common issue with "dry-lining" finishes.
• Paint Flaking: Usually occurs when the mist coat was skipped or the plaster was too wet when painted.
• Shadowing: When the ceiling isn't perfectly flat, light from windows or lamps creates "waves" or shadows across the surface.
• Cracking: Often happens in new builds or extensions due to "settlement," or if the boards weren't screwed tightly to the joists.

Frequently Asked Questions

Do I have to remove my old Artex ceiling?

Not necessarily. If the Artex is in good condition and doesn't contain asbestos, you can "over-board" it by fixing new plasterboard directly over the top and skimming. This is often cleaner and cheaper than removal.

What is a mist coat and why is it needed?

A mist coat is a diluted mixture of water and emulsion (usually 70/30 or 80/20). It soaks into the porous new plaster to create a bond; without it, the top coat of paint will sit on the surface and eventually peel off in sheets.

Can I stay in the house while the ceiling is being replaced?

Yes, but be prepared for significant noise and dust. If the work is in a main thoroughfare like a hallway or kitchen, access may be restricted for several hours during the boarding and skimming phases.

How do I know if my ceiling contains asbestos?

The only way to be sure is to have a sample tested by a UKAS-accredited lab. Many decorators will refuse to sand or scrape Artex without a negative test certificate if the house was built before 1999.

Will the new ceiling crack again?

While minor hairline cracks can occur due to natural thermal expansion, using scrim tape on all joints and ensuring boards are correctly staggered and screwed significantly reduces the risk of structural cracks returning.