Frequently asked questions

Several signs point to aging wiring: breakers tripping for no clear reason, outlets or switches that feel warm or look discolored, a faint burning smell, or wiring that's the old Soviet-era aluminum type without grounding. If the building is over 25–30 years old and the electrical system has never been fully replaced, the insulation is very likely worn out. Any of these signs is a good reason to have an electrician inspect the wiring before it leads to a short circuit.

Properly installed copper cable with PVC insulation typically lasts around 25–30 years under normal load, with some manufacturers rating it even longer. Aluminum wiring, common in Soviet-era buildings, has a shorter service life, and in most older apartments that lifespan has already run out. Actual lifespan depends heavily on installation quality, the load on each circuit, and conditions like humidity and temperature swings. Even copper wiring older than 30 years is worth having checked by a professional.

Yes, wiring can be run without chasing the walls — using cable trunking, decorative surface channels, or corrugated conduit hidden above a suspended or stretch ceiling. This is a practical option when renovation is already finished, in wooden houses where chasing isn't recommended, or for temporary and additional circuits. The downside is that surface wiring is visible and needs channels matched to the interior. Chasing hides the cable and looks cleaner, but it's dusty, labor-intensive work best done before final finishing.

The standard for residential wiring is copper cable rated VVGng-LS (flame-retardant, low smoke) — important in case of fire. Cable size is chosen based on the circuit's load: lighting circuits usually use 1.5 mm², outlet circuits 2.5 mm², and high-power loads like an electric stove 4–6 mm². Whether the cable has 2 or 3 cores depends on whether the home has grounding — modern installations use three-core cable. Aluminum cable is no longer used for new residential wiring.

Aluminum wiring uses aluminum-core cable, widely installed in Soviet-era buildings up through the late 1980s and early 1990s because the metal was cheap. Aluminum conducts electricity less efficiently, is more brittle and prone to breaking at bends, and — most importantly — oxidizes at connection points such as twisted joints and terminals, which weakens the contact, causes heating, and creates a fire risk. It also generally wasn't designed for today's loads, like air conditioners, washing machines, and electric stoves. That's why aluminum wiring is typically replaced entirely with copper during a major renovation.

Start by checking the electrical panel: the type of breakers, whether an RCD is installed, and any signs of soot or melted plastic. The building's construction year and the color of the cable cores visible in the panel — silvery-yellow for aluminum, reddish for copper — give a rough idea of the wiring type. It also helps to run several high-power appliances at once (kettle, heater) and check whether outlets get warm or a breaker trips. A definitive assessment of hidden wiring without opening the walls requires an electrician with proper testing equipment, so it's worth arranging that check before buying.

A humming or crackling sound behind a wall usually points to sparking at a poor connection point — a twisted joint, a junction box terminal, or a splice — and can also signal an overloaded cable or a fault inside the panel itself. It's a genuinely dangerous symptom: sparking inside a wall can ignite the cable insulation or the wall finish, and there's no visible warning sign from outside. If you hear this, switch off the relevant breaker for that section if possible and call an electrician for diagnostics rather than hoping the noise goes away on its own.

A typical apartment panel includes a main incoming breaker, an electricity meter, an RCD and/or RCBOs that protect people from electric shock, and separate branch breakers for each circuit — lighting, outlets, kitchen, high-power appliances. All these components mount on a DIN rail inside the panel enclosure, with wires connected to the neutral (N) and grounding (PE) bus bars. The exact set of branch breakers depends on the apartment's layout and the number of separate circuits.

Once a year it's worth visually inspecting the panel — checking for discolored contacts, signs of overheating, or a burning smell — and tightening the screw terminals, which naturally loosen over time. RCD function is easy to self-check monthly using the "test" button on the device, which simulates a leakage and should trip the protection. Deeper preventive maintenance with test equipment — checking contact tightness under load, insulation resistance — is worth having an electrician do every 3–5 years, or sooner if you notice any warning signs.

There are a few options: install narrower modular breakers (half-width models are widely available now), swap the panel for a larger enclosure, or move some breakers into a small additional panel next to the main one. Don't try to "save space" by leaving out an RCD or putting multiple circuits on a single breaker — that directly reduces safety and overload protection. The right solution usually depends on the apartment's actual wiring layout, which an electrician can assess.

It's technically possible, but not advisable without experience: mistakes in wiring the main breaker, phase connections, or the RCD can lead to electric shock or fire, since the entire apartment's load runs through this panel. On top of that, connecting to the incoming cable on the landing often requires approval from the building management company or the utility provider. Given how costly a mistake can be, it's more sensible to have an electrician assemble and connect the panel — redoing an incorrectly wired panel typically costs more than getting it right the first time.

A flush-mounted (recessed) panel sits inside a niche cut into the wall and, once installed, its door sits flush with the wall surface — it looks tidier but requires chasing or a ready-made niche during installation. A surface-mounted panel attaches directly to the wall's exterior — installation is simpler and faster with no chasing needed, making it a practical choice when the wall is already finished or in a wooden house. The choice usually comes down to the renovation stage: recessed makes sense while walls are still unfinished, surface-mounted is easier once renovation is already done.

If the breakers aren't labeled, you can identify them one at a time: switch one off and check exactly what stops working — lights or outlets in a specific room. It's easiest with two people — one stays at the panel, the other walks through the apartment with a phone reporting back what turned off. Once you've identified each breaker's purpose, label it right away with marker or a sticker on the panel so you don't have to repeat the process later, for example during the next renovation.

The most common cause is circuit overload — too many high-power appliances running at once, pushing the total current above the breaker's rating. The second common cause is a short circuit in the wiring or in an appliance itself, which trips the breaker instantly and consistently every time. Less often the culprit is a worn or stuck contact inside an outlet, or the breaker itself failing with age. If it only trips under peak load, that's usually overload; if it trips immediately with no load, a short circuit is more likely.

A breaker's rating is always chosen to match the specific cable's size, not the other way around — its job is to protect the wire itself from overheating under overload. A lighting circuit with 1.5 mm² cable typically gets a 10 A breaker, an outlet circuit with 2.5 mm² cable gets 16 A, and a high-power circuit like an electric stove with 4–6 mm² cable gets 25–32 A. Too low a rating causes frequent nuisance trips under normal use, while too high a rating is dangerous — it won't trip in time and the wire can overheat. If in doubt, it's best to have an electrician calculate the correct rating.

Tripping immediately after switch-on almost always points to a short circuit rather than overload. Start by unplugging everything on that circuit and switching the breaker on with no load: if it still trips with nothing connected, the fault is in the wiring or the panel itself; if it stays on, reconnect appliances one at a time to find which one is causing it. Don't open up wall wiring yourself looking for a short — finding a short circuit accurately requires an electrician with proper test equipment.

No, this should never be done — it's one of the most dangerous DIY workarounds in home electrics. A breaker's rating is matched strictly to a specific cable's size, and installing a higher rating means that under overload the wire starts heating up and can melt its insulation or ignite before the breaker even reacts, since it's now sized to protect a thicker cable than what's actually installed. The correct fix is always the same — find and fix the real cause of the tripping, whether it's circuit overload or a short circuit, rather than bypassing the protection with an oversized breaker.

A fuse plug trips only once — a special element inside burns out and has to be physically replaced afterward (wiring in a piece of metal wire instead, sometimes called "bridging," is extremely dangerous and not allowed under modern standards). A circuit breaker trips mechanically under overload or short circuit and, once the cause is fixed, simply flips back on without replacing any parts. Breakers are also more precise in timing and current threshold and hold up better over years of use, which is why fuse plugs have been almost entirely replaced by breakers in residential buildings.

A quality circuit breaker is typically rated for 15–20 years of service, or a set number of mechanical and switching cycles specified by the manufacturer under normal use. It's worth replacing sooner if it starts heating up, sticks, trips with a noticeable delay, or, conversely, trips without any visible overload — all signs of worn internal contacts. When a panel is scheduled for replacement or a new one is being assembled, breakers are usually swapped out entirely, even if the old ones technically still work.

An RCD (residual current device) reacts only to current leakage — for example, when insulation is damaged or moisture gets in, causing some current to flow to ground through a person or an appliance casing. But an RCD doesn't protect against overload or short circuits, so it's always installed alongside a regular breaker. An RCBO (residual current breaker with overcurrent protection, often called a "diff breaker") combines both functions in one device — protecting against leakage and against overload/short circuits. An RCBO is more compact and saves panel space, but if one function fails you have to replace the whole unit, whereas a separate RCD-plus-breaker pair can be replaced piece by piece.

Yes, these are two different types of protection, and neither replaces the other. A breaker protects the wiring itself from overload and short circuits — essentially, from fire. An RCD protects a person from electric shock caused by current leakage — for example, if an appliance's insulation is damaged or moisture gets into an outlet; without an RCD, a regular breaker won't save someone in that situation, because the leakage current is far too small to trip it. It's especially important to have an RCD on circuits in higher-moisture areas — bathrooms, kitchens, and utility rooms.

Common causes of "unexplained" RCD tripping include natural cumulative leakage current through worn insulation in old wiring or several appliances at once (washing machine, water heater, refrigerator), moisture getting into an outlet or junction box, damaged insulation in one specific appliance (a fault to its casing), or the RCD itself being faulty or worn out. To narrow it down, you can switch off circuits or unplug appliances one at a time and see which one stops the tripping. If you can't pin down the cause yourself, it's time to have an electrician run diagnostics.

Under current standards, an RCD is required on outlet circuits in higher-shock-risk rooms — bathrooms and kitchens — and is recommended on all outlet circuits generally. In older apartments where the panel was assembled without an RCD, the fact that it wasn't formally required when the building was constructed doesn't remove the real risk: without one, leakage current from a damaged appliance can still injure someone, so installing it should be treated as a necessity rather than an option. Adding an RCD is a sensible step whenever a panel is upgraded or the electrics undergo a major renovation.

Start by checking the panel — a breaker or RCD on that circuit may have tripped. If everything there looks fine, the fault may be inside the outlet itself: a burned or loosened contact from wear or overload, a loose screw terminal, or a break in the wiring leading up to it. It's also worth ruling out the appliance — plug in something you know works. If the outlet isn't the only one affected and several points along the same chain have also stopped working, there's likely a break further up the circuit, and that calls for an electrician.

The most common cause is a loose contact in the outlet's terminals: the wire isn't held tightly enough by the screw, so resistance builds up at the connection point and generates heat. An outlet can also heat up because of a mismatch with the load — for instance, a powerful heater or kettle plugged into an old outlet not rated for that current — or because the internal contact plates have worn out after years of use. A hot outlet is a direct fire-safety warning sign: stop using it, switch off power to that circuit, and replace the outlet, checking the wiring leading up to it if needed.

Sparking when you plug something in is usually caused by a loosened contact inside the socket — the internal clips wear out with frequent use or their contact surfaces get burnt. An overloaded socket powering a high-wattage appliance, or an old plug with loose pins, can cause the same effect. A tiny spark on insertion is fairly normal, but crackling sounds, a burning smell, or discoloration around the socket point to dangerous wear. In that case switch the outlet off and have it replaced — patching the internal contacts rarely fixes the problem for long.

A modern kitchen needs a dedicated outlet for each major appliance — fridge, dishwasher, washing machine, oven, electric cooktop — plus several general-purpose outlets above the counter for a kettle, microwave, blender and other small appliances. That usually adds up to 8-12 outlets on an average kitchen, not the 2-3 that older apartments were built with. Countertop outlets are typically placed 15-20 cm above the work surface, while outlets for built-in appliances go behind the cabinet at the height of the connected unit. It's worth planning the layout before the final finishing is done, so you don't have to cut into a finished wall later.

Yes, but only under strict safety conditions: the outlet must be moisture-protected (IP44 rating or higher), wired through an RCD-protected circuit, and positioned at a safe distance from the bath, shower and sink as required by code — typically at least 60 cm from any water source, outside the direct splash zone. A 10-30 mA RCD cuts power the instant it detects even a small current leak, which matters a lot in a wet room. Installing an ordinary, non-waterproof outlet without RCD protection in a bathroom is not safe and shouldn't be done.

Relocating an outlet isn't just moving a box — it means running new wiring: a cable has to be routed from the panel or the nearest junction box to the new location, a channel cut into the wall for concealed wiring, a new mounting box installed, and the old spot properly patched up. The cable gauge is chosen to match the load the outlet will carry, and connections are made inside a junction box rather than twisted together inside the wall. After installation, the insulation and contact reliability under load should be checked. Because chasing walls and running cable is precise, messy work, most people call an electrician rather than attempt it themselves.

A wobbly outlet usually means the mounting box's expansion clips have broken or loosened, or the box itself isn't firmly fixed in the wall — common in older panel buildings with plaster mounting boxes. Using it is risky: the whole socket can twist along with the plug, straining the wires or loosening a contact enough to cause overheating. Tightening the expansion clips with a screwdriver is only a temporary fix, not a real solution. The proper fix is to refit or replace the mounting box, securing it firmly with plaster or wall anchors, and only then remount the outlet.

If the light won't turn on, start by checking the bulb itself and the breaker in the panel — a burnt-out bulb or a tripped breaker is the most common cause, not the switch. If that doesn't fix it, the switch mechanism itself may be worn out or the rocker may be sticking, there could be a broken wire somewhere between the panel, the switch and the fixture, or a bad connection in a junction box. Less often the socket holder of the fixture itself is at fault. Testing live wiring safely takes some basic skill and caution — if a new bulb and a working breaker don't bring the light back, it's more sensible to call an electrician than to start probing the circuit at random.

Controlling one light fixture from two locations requires two-way (three-terminal) switches rather than ordinary single-terminal ones, wired together as a pair through two traveler wires running between them. The wiring is straightforward: the live feed goes into the first switch, two traveler wires connect the two switches, and the live wire out of the second switch goes to the fixture. This lets you turn the light on at one switch and off at the other — handy for long hallways, staircases, or a bedroom with a second entrance. The work is done with the circuit de-energized and requires understanding the wiring diagram, so without experience it's best left to an electrician.

A soft click when pressing the switch is normal, but sparking or a loud crackle points to a real problem — usually worn or burnt contacts inside the switch, a loose wire connection at the terminal, or a switch rated for a lower load than what's actually connected, such as a heavy multi-bulb chandelier. This kind of wear gets worse over time, with the contacts heating up a little more with each use. If a switch sparks, its housing is cracked, or the rocker feels warm to the touch, stop using it and have it replaced before it leads to melted wiring or a short circuit.

Flickering can have several causes: a loose contact in the bulb socket or somewhere in the wiring, a temporary voltage sag when a heavy appliance switches on, a problem further upstream at the panel or the building's riser, or worn contacts in the breaker or meter. If only one bulb flickers, it's likely the socket or the bulb itself; if the whole apartment flickers together, the issue sits at the panel or the incoming supply. A brief flicker when a heavy appliance kicks in is usually normal, but constant or worsening flickering needs diagnosis. In that case it's worth calling an electrician promptly, since a poor connection in the circuit heats up over time and can become a fire risk.

LED bulbs use roughly 6-10 times less electricity than incandescent bulbs for the same brightness, and last far longer — a good LED bulb runs for years where an incandescent one lasts a few months. They barely heat up, which lowers fire risk when placed near fabric or plastic shades, and they tolerate frequent switching on and off without wearing out faster. Modern LEDs come in a range of color temperatures, from warm to cool white, so you can match the light to the room. The main downside is a higher upfront price per bulb, which is usually offset by lower electricity bills and a much longer lifespan.

A chandelier with two modes usually has two separate wires feeding the two bulb groups, and a standard single-rocker switch can't control them independently — it only switches one circuit on and off. Controlling the modes separately requires a two-rocker switch with two sets of contacts, each rocker feeding its own bulb group. If you keep a single-rocker switch, both chandelier wires have to be joined together onto the live feed, and then all the bulbs will only turn on and off together, with no separate modes. So for the chandelier's two modes to actually work, it's better to swap in a two-rocker switch beforehand.

A brief flicker before a bulb settles into steady light is typical for compact fluorescent and certain LED bulbs — a capacitor inside the driver needs a moment to charge, so the bulb can flash once or twice before reaching full brightness. This can also happen with an illuminated switch: the small current running through the switch's indicator light partly charges the bulb's capacitor, causing a flicker in the dark. Neither of these usually points to a wiring fault. But if this flickering starts suddenly on a bulb that previously worked fine, or shows up alongside flickering in other lights around the apartment, it's worth checking the connections and calling an electrician if needed.

Recessed spotlights are compact fixtures built into a suspended or stretch ceiling, and sometimes into walls or furniture, giving diffuse, even lighting instead of one bright central source. They work well for zone lighting — over a kitchen work area, around a room's perimeter, in a hallway, bathroom or walk-in closet — and also pair with a central chandelier to add soft fill light. Spacing between fixtures is usually worked out from the room's area and ceiling height, roughly 0.5-1 m apart, so the light spreads evenly. Installation means running concealed wiring through the ceiling up to the suspended structure and calculating the right number of fixtures for the light level you need.

Lighting levels are usually calculated in lumens (light output) rather than watts, since LED bulbs produce far more light per watt than incandescent ones. A rough guideline is 150-200 lumens per square meter for living spaces — around 150 lm/m² for a bedroom, and closer to 200 lm/m² for a kitchen or work area where brighter, more even light is needed. Color temperature matters too: warm light (2700-3000K) suits bedrooms and living rooms, while neutral or cool light (4000K and above) works better in kitchens, bathrooms and home offices. It also helps to plan for local lighting — over a work surface, a mirror, a dining table — not just overhead light, so the room doesn't end up with harsh contrasts that strain the eyes.

A burning smell near an outlet or the panel almost always means insulation or contacts are overheating — from a poor connection, an overloaded circuit, or wires starting to melt — and it's one of the more serious warning signs in home wiring. It shouldn't be ignored: overheating can turn into an open fire quickly, especially near curtains, furniture or other flammable material. As soon as you notice the smell, disconnect the load on that circuit, cut power to the apartment at the panel if you can, and stay off that outlet or panel until it's been checked. Don't try to diagnose it yourself — this calls for an electrician who can find the damaged section and replace it, not just get rid of the smell.

When a short circuit happens, the first step is to cut power to the apartment — usually the breaker on the affected circuit, or the main breaker in the panel, will have already tripped on its own. Don't try flipping the breaker back on "just to test it" — if the cause of the short hasn't been fixed, it will trip again, and repeated attempts only increase the risk. If you smell burning or see sparking, it's worth cutting all power at the panel's main switch and staying away from the affected area. After that, call an electrician to locate and repair the fault — it isn't safe to restore power or use that wiring until the cause has been found and fixed.

Yes, a live bare wire is always dangerous, no matter how thin or harmless it looks — there's no way to tell by sight whether it's carrying current or how much. Electric shock can cause burns, muscle spasms, or stop breathing or the heart, especially if someone touches it with wet hands or is standing on a damp floor. A bare wire, even a short one hanging loose by accident, should never be touched until it's confirmed the power is off. If a wire is exposed inside an apartment, cut power to that circuit at the panel breaker and stay away from the wire until an electrician arrives.

The main step is fitting safety covers or plugs on every unused outlet within a child's reach — outlets with built-in shutters that block the slots automatically are a good choice. Appliance cords and extension leads should be kept out of reach or tucked behind furniture, so a child can't pull on a cord or poke fingers into it. It's worth checking that the apartment has an RCD installed — it cuts power the instant it detects a current leak, which matters most if a child does touch something live. It also helps to regularly check outlets and switches for cracks or looseness, since damaged fittings weaken this protection and raise the risk.

First check whether neighbors or the stairwell have power — if the whole building is dark, the problem is on the utility company's side and it's them you need to call, not an electrician. If only your apartment has lost power, check the breakers in the panel: the main breaker or the RCD may have tripped due to an overload or a current leak. It's fine to try flipping the breaker back on once, but if it trips again immediately, don't keep repeating it — instead unplug everything and try resetting the breaker with no load connected. If power still doesn't come back, or the breaker trips even with nothing plugged in, it's time to call an electrician to diagnose the panel and wiring.

A noticeable shock from an appliance's casing almost always means a current leak — the insulation inside the appliance has failed (a washing machine's heating element is a common culprit) and the live wire is "leaking" onto the metal body. This is more dangerous in a bathroom or kitchen, where the damp environment raises the risk of a serious shock. Unplug the appliance right away and don't use it again until it's been checked. Then confirm the apartment has a working RCD installed — it should cut power instantly the moment a leak like this occurs; if it didn't trip, have an electrician check the RCD and the grounding, and have the faulty appliance itself looked at separately by an appliance repair technician.

Yes, grounding is essential — it channels dangerous voltage from a faulty appliance's casing into the earth instead of through a person's body, and works together with an RCD to improve overall shock protection. It matters most for powerful appliances with a metal casing: washing machines, ovens, water heaters, dishwashers. Older buildings often have no proper grounding loop, or use an outdated method (bonding to the neutral wire instead of a dedicated ground conductor) that doesn't offer real protection. Checking whether grounding is present and working correctly isn't something to do safely on your own — it requires test equipment and know-how, so this diagnosis should be done by an electrician, especially before connecting high-power appliances or after moving into a flat with old wiring.

Requests are taken 24/7 — call +7 777 673 67 77 or message on WhatsApp. The exact arrival time depends on your address and current workload, so it's best to confirm the timing directly when you reach out. Service covers Astana and the Akmola region, so mentioning your district right away helps the electrician give an accurate estimate of when they can get to you.

A minimum callout starts from 3,000 KZT. Costs beyond that depend on the job: installing or replacing an outlet/switch starts from 700 KZT per unit, adding a brand-new outlet point from 2,000 KZT, relocating an outlet or switch from 5,000 KZT, and installing a light fixture or chandelier from 3,000 KZT. The final price depends on the scope and complexity of the work, so the electrician confirms an exact figure after seeing the job or hearing a full description of it.

Yes, completed work is covered by a guarantee of up to 3 years. This covers the quality of the installation and the work carried out for that specific service. If any question about quality comes up after the job is done, the best step is to reach out directly by phone at +7 777 673 67 77 or via WhatsApp to discuss it.

The electrician covers Astana and the Akmola region. For a specific village or a more remote area, it's best to confirm availability in advance by calling +7 777 673 67 77 or messaging on WhatsApp, since coverage isn't automatically guaranteed for every single location. Requests are taken 24/7, around the clock.