What Does It Cost to Paint the Interior of a Period Home?

Ask three painters to quote the interior of a period Toorak home and you will get three numbers that are difficult to compare, because they are not describing the same job. On a modern square-set interior a per-room or per-square-metre figure works reasonably well. On a period home it does not, and understanding why makes the quotes readable.

Why square metres do not work here

Interior painting cost is driven by hours, and hours are driven by linear detail rather than by wall area.

A modern room with square-set plaster, a flush skirting and a flat ceiling is almost entirely roller work, which is fast. A period room of exactly the same floor area with a deep moulded cornice, a ceiling rose, a picture rail, panelled doors, architraves and a tall skirting board is mostly hand cutting-in with a brush, and it can take two to three times as long.

The walls in both rooms take the same time. Everything else does not.

What actually drives the number

Cornice, roses and mouldings

This is the single largest factor. A deep multi-step cornice has to be cut in by hand along every wall junction, and the moulding profile itself has to be coated without filling the detail. Ceiling roses are painstaking. Where the detail is being picked out in a second colour, the time roughly doubles again.

Ceiling height

Period homes in this area often have ceilings well above three metres. Everything above comfortable reach means working from platforms or trestles, and every setup, move and reset is time. Tall rooms also mean tall walls, so the roller work grows as well.

The condition of the plaster

This is the biggest variable and the one that most often separates quotes. Original lath and plaster develops cracking, and it moves seasonally in a way modern plasterboard does not. Patching, sanding and sealing repairs is slow, and it all happens before any finish coat.

A room with extensive cracking can genuinely take longer to prepare than to paint. Any quote that has not accounted for the plaster condition on a period home is a quote that will produce a variation.

Joinery and doors

Panelled doors, architraves, window sashes and built-in cabinetry are hand-painted, usually in enamel or a waterborne enamel, and they need overnight drying between coats. A house with a lot of joinery is a house with a lot of days in it, and the drying time is not compressible.

Colour changes and existing condition

Going from a dark scheme to a light one adds coats. Painting over strong colours, over patched areas, or over surfaces that have never been sealed properly adds an undercoat stage. Each of those is real time.

Lead paint

Original coatings in pre-1970 homes should be assumed to contain lead until tested. Where preparation disturbs those coatings, it has to be done with containment and controlled clean-up rather than open sanding. It is slower, and it is not something to trade away on price.

What separates a low quote from a high one

Nearly always three things, and none of them are the paint.

The first is coats. Two finish coats over a properly sealed surface is the standard. A quote based on one coat, or on two coats with no sealer over patched work, will look identical on handover day and different within a year.

The second is preparation. Filling, sanding, and sealing repairs so they do not flash through the finish is invisible in a quote and obvious in the result. It is also the easiest thing to leave out to win a job.

The third is what is included. Are ceilings in? Cornices? Skirtings and architraves? Doors, both sides? Inside the built-in robes? Two quotes with a large gap between them usually differ on this list rather than on rates.

Making quotes comparable

Write your scope down once and give the same document to everyone. List the rooms, and for each one state whether ceilings, cornices, walls, skirtings, architraves and doors are included.

Then ask each contractor four questions. How many coats, and is there a sealer or undercoat stage? How is the plaster condition being handled, and is repair included or a variation? What products are being used on walls, ceilings and trim? And how will lead-containing coatings be managed?

The answers will usually explain the entire price difference, and often the cheapest quote becomes the mid-priced one once the missing items are added back in.

Where the money is well spent

On a period home, the preparation and the detail work are where the value sits. A perfectly executed cornice and a crisp line at the picture rail are what make a room read as properly finished, and they are entirely a function of hours and skill rather than of product cost.

The paint itself is a small share of the total. Choosing a cheaper contractor almost never means buying cheaper paint — it means buying fewer hours, and on a period interior the hours are the job. Whether it is a full interior repaint, decorative finishes picked out in the detail, or work on original sash windows, the honest quote is the one that tells you where those hours are going.