Deep cleaning a Victorian terrace — what you can't see makes the difference

A good chunk of Durham's housing stock predates 1900. The terraces around Crossgate, the bigger houses up Western Hill, the cottages tucked into the villages around Brandon and Sherburn. They're properly beautiful buildings — and they need cleaning differently to anything built in the last fifty years.

This is a guide to deep cleaning Victorian and Edwardian properties, written specifically for the kind of housing stock we see across Durham. If you live in one, or you've inherited one, or you've just moved in, this is what you need to know.

Why a Victorian deep clean is different

Three things make cleaning old properties fundamentally different from modern ones:

1. The materials are porous. Old plaster, original timber, lime mortar, sandstone, encaustic tile — all of these absorb moisture and chemicals in a way modern materials don't. The wrong cleaning product can stain or damage them permanently.
2. The surfaces are irregular. Original mouldings, picture rails, dado rails, ceiling roses, fireplace surrounds — dust accumulates in places that don't exist in a modern house. A proper Victorian deep clean is essentially a long, careful dust-and-detail job.
3. The fixtures are fragile and often original. Cast-iron fireplaces, brass door furniture, encaustic tiles, leaded glass. Many of these can't be replaced cheaply (or at all), so getting the cleaning wrong is genuinely costly.

The Victorian deep cleaning checklist

This is the order we work in on every deep clean of a period property. Top down, dust before damp, careful before fast.

Phase one — top-down dry dusting (2 hours)

Before any water touches anything, we dust everything from the top down. In an old property this takes longer than the entire rest of a modern deep clean.

• Ceiling roses and cornices (long-handled microfibre duster)
• Picture rails — the tops accumulate years of dust nobody can see
• Top of door frames, window frames and architraves
• Light fittings and chandelier-style fixtures
• Top of wardrobes, dressers, bookcases
• Skirting board tops (a finger-test for the inspector)

Phase two — fireplaces (1 hour)

Cast-iron fireplaces are the heart of most Victorian rooms in Durham and they need specific treatment:

• Cast iron grate and surround — never water. Use a stiff dry brush, then a microfibre cloth with a tiny amount of black grate polish (Stovax or similar). Buff to a soft sheen.
• Tile inserts — typically encaustic or majolica tiles, glazed but porous beneath. pH-neutral cleaner only, no acidic or alkaline products. Soft microfibre cloth, no scouring.
• Hearths — usually slate or stone. pH-neutral cleaner, damp cloth, then dry. Standing water will mark slate.
• Brass or chrome trim — Brasso for genuine brass (test first in case it's lacquered), gentle metal polish for chrome.

Phase three — sash windows (45 minutes per window)

Properly cleaning a sash window means cleaning four glass surfaces, not two. You slide the bottom sash up and the top sash down, clean both inner faces, then reverse. Microfibre cloths and pH-neutral glass cleaner — never paper towels (the lint sticks to the glazing bars).

While you're at the window, also clean:

• The frame and sashes themselves — careful with the cords inside the box frames, they rot if soaked
• The sill (especially if stone — pH-neutral only)
• The wooden architrave around the window
• The shutter panels if there are any (rare but lovely when there are)

Phase four — original timber floors

If the property has its original floorboards rather than carpet or laminate, this is the most delicate part of the whole deep clean:

• Hoover thoroughly with a soft floor head, getting into every gap between boards
• Damp microfibre flat mop with warm water only — no soap, no detergent, no polish
• Wring the mop to barely damp — standing water will warp the boards
• If the floor is waxed (and many old Durham floors are), apply a thin coat of beeswax polish once or twice a year as part of the deep clean

Phase five — period kitchens and bathrooms

If the kitchen and bathroom have been refitted, treat as a normal deep clean. If they retain original fixtures (vintage cast-iron baths, period tiles, old chrome fittings), they need the same care as the rest of the house:

• Cast-iron baths — pH-neutral bathroom cleaner only, no acidic limescale removers (they'll etch enamel)
• Original tile floors — pH-neutral, no bleach, no abrasive scrubbers
• Vintage chrome — soft cloth, gentle polish, test first to check the finish

The cleaning products we use in Durham's Victorian homes

After years of cleaning period properties across the city, the cleaning products we trust on old materials:

• pH-neutral surface cleaner — for most surfaces. Method or Ecover both work; we use a commercial equivalent.
• Beeswax polish — for original timber furniture and floors. Sparingly.
• Black grate polish — Stovax is the standard for cast-iron fireplaces.
• Brasso — for unlacquered brass door furniture (test first).
• Microfibre cloths in five colours — to keep work areas separated.
• HEPA-filtered vacuum — important in old properties where lead paint dust can be a concern.

What to avoid

The cleaning products that will damage a Victorian property if used carelessly:

• Bleach — discolours enamel, eats lime mortar, damages encaustic tiles.
• Acidic limescale removers — etch enamel, etch marble, damage chrome.
• Strong alkaline degreasers — strip wax finishes from timber.
• Steam cleaners on plaster walls — will cause blowing and detachment.
• Abrasive scrubbers — on original tile, chrome, brass or enamel.

A Victorian deep clean is a careful, slow job. Get it right and the house feels reborn. Get it wrong and you've taken irreplaceable original features off twenty years of their life.

How long it takes

A proper professional deep clean of a 3-bed Victorian terrace in Durham is genuinely a full day for two cleaners — about 14 person-hours. A larger Victorian house (4 bed plus) is 16–18 person-hours. A modern 3-bed house with the same square footage is more like 8 person-hours. The buildings are simply harder to clean.

We charge by the property rather than the hour for period deep cleans because guessing wrong on time isn't your problem. Typically £250–£500 for a Durham Victorian terrace deep clean, depending on size and condition.