Old building or new development: how their upkeep needs differ

Wiring and the electrical system — the age of the building's core

Panel buildings from the 1960s to 1980s and wooden houses from the 1930s were wired for a much lighter load than a modern household draws. Aluminium wiring turns up often in Soviet-era flats, and it is more prone to loose connections and overheating at joints than copper. If the flat has never had its wiring replaced, expect an older fuse board, two-wire circuits without earthing in older rooms, and sockets that were never meant to run a kettle, a washing machine and a hob at once.

New developments are wired to current standards, with earthed circuits throughout, a modern consumer unit, and capacity for underfloor heating, ventilation units and home charging points. The main task here is not fixing anything but understanding the system well enough to avoid overloading circuits before you learn where they split.

In an old building, a full rewire is a renovation-scale project, but smaller interventions come up regularly: a socket that has gone warm to the touch, a fuse board that trips under normal load, or a room that still runs on two-wire cable. Any of that is electrical work, and it needs a qualified electrician rather than a confident guess, from 49 € per hour.

Pipework — when the old pipe surprises you

Older buildings were plumbed in galvanised steel or, in some 1930s houses, even older materials, and both corrode from the inside over decades. The failure is rarely gradual: pressure drops slowly for a while and then a joint gives way, often behind a wall or under a floor where you cannot see it coming. Riser pipes shared between flats in a panel building are a particular risk, because a single failure there can affect several flats above and below.

New developments are plumbed in PEX or copper, which do not corrode the same way and are not it a matter of if but simply of use and installation quality. The pipework itself is not the ongoing cost here — fittings, seals and appliances connected to it are, the same as anywhere else.

A burst pipe in an old building is urgent by definition, and it is exactly the kind of job we take calls for around the clock. Where the pipework is still original and ageing, it is worth having a plumber look at visible sections and shut-off valves before there is a leak, not after, from 45 € per hour.

Insulation and heating — where the money disappears in winter

Wooden houses from the 1930s were built for a different heating culture and often have thin or settled insulation in walls and roof space; panel buildings have a concrete structure that holds cold at thermal bridges around windows, balconies and building joints. Both lose heat in ways that show up as a higher district heating bill rather than as a visible problem, which is why the loss goes unnoticed for years.

New developments are built to current insulation standards and usually have underfloor heating with balanced ventilation, so heat loss is lower and more even. The maintenance task shifts from insulation itself to keeping the ventilation system working as designed, since a blocked or poorly balanced unit undermines an otherwise efficient building.

In an older building, the fixes that make the most difference without a full renovation are usually small: sealing draughts around old window frames, insulating a cold attic hatch, or fitting proper thresholds on exterior doors. That kind of work sits comfortably within an odd-jobs visit, from 39 € per hour.

Apartment association and building management — who pays for what repair

In an older panel building, the korteriühistu is usually managing a building that needs staged, expensive work: roof, façade, risers, sometimes the building's electrical mains. Reserve funds vary a great deal between associations, and a well-run one with a maintenance plan is a genuinely different ownership experience from one that only reacts to emergencies. It is worth asking to see the association's minutes and reserve fund balance before buying, not after.

A 1930s wooden house may have no association structure at all if it is a single dwelling, which means every repair decision and cost falls on the owner directly, with no shared reserve to draw on.

New developments typically start with a newly formed association, low reserves, and a management company still learning the building. Costs there are lower in the early years simply because little has broken yet, but that changes as fittings, lifts and shared systems reach the age where they need attention.

• Ask to see the association's reserve fund balance and recent minutes before buying
• Check whether a roof, façade or riser renewal is already planned or under discussion
• In a single-dwelling house, budget for repairs yourself rather than assuming shared cover
• In a new development, expect low costs early on and rising costs as the building ages
• Find out whether the management company is the developer's own or an independent one

Smaller jobs that come up regardless of the building's age

Some maintenance has nothing to do with when the building went up: a door that has started sticking, a tap that drips, a shelf that needs fixing to a wall that turns out to be concrete rather than plasterboard, a lock that needs replacing. These jobs are the same whether you are in a 1930s wooden house in Nõmme or a new block in Kesklinn, and they are the bulk of what most owners actually call a handyman for.

The difference is context: in an old building, a wall behind a fitting may hide surprises, from old wiring to a pipe run that was never on any drawing; in a new development, walls and fixings are more predictable but tolerances are often tighter and finishes more easily marked.

Whichever type of building you end up in, it helps to keep a simple list of small jobs as they appear and deal with them in one visit rather than one by one, since a call-out charge of 25 € within Tallinn is deducted from the bill if the work goes ahead.