Every September, the same conversation happens in apartment association board meetings across Riga. Someone asks "so, when do we switch on the heating?" and then everyone argues for forty minutes about whether it's too early, too late, or whether the boiler needs servicing first.
I've sat through enough of those meetings to know that the answer is always "it depends on the weather" — but the preparation shouldn't depend on anything. By the time October rolls around and the outdoor temperature drops below the legal trigger point, your building should already be ready. Not "we'll get to it next week" ready. Actually ready.
Here's what I've learned about preparing a building for heating season in Latvia, based on six years of watching associations either sail through October or scramble through November.
The October 1st myth
Let's clear this up first. There's a widespread belief that heating must be turned on by October 1st. That's not quite how it works.
According to the Cabinet of Ministers Regulations No. 485 (Ministru kabineta noteikumi Nr. 485), the heating season begins when the outdoor temperature stays below +10°C for five consecutive days. In practice, that's usually mid-October in Riga, sometimes earlier in the northeast, sometimes later on the coast. But the regulation is about when the heating provider may begin, not when your building is forced to.
What this means for you: you don't control the start date. You control whether your building is ready when it arrives.
I've seen associations wait until the last week of September to even think about heating preparation. That's a mistake, because the things that go wrong — a leaking radiator valve, a seized circulation pump, a misconfigured heating substation — take days to fix. And contractors are booked solid by October.
Start in August. Seriously.
The six-week countdown
I work backwards from mid-October. Here's the rough timeline I follow for a typical 40–60 apartment building in Riga.
Six weeks out (early September)
This is when you schedule the annual heating system inspection. In Latvia, residential heating systems above a certain capacity require periodic inspection under the Law on Residential Property Management (Dzīvokļa īpašuma likums) and related building safety regulations. The inspection covers the boiler or substation, circulation pumps, expansion vessels, safety valves, and control systems.
Book a certified HVAC contractor now. Not next week. By the second week of September, the good ones are scheduling into October, and you'll either pay emergency rates or wait.
While the contractor is on-site, ask them to check:
- Circulation pump operation (listen for bearing noise — that's a warning sign)
- Expansion vessel pressure (should be around 1.0–1.5 bar for most residential systems)
- Safety valve activation (test manually — if it sticks, replace it)
- Radiator valve function on at least a sample of units
- Heating substation heat exchanger condition (if your building has an independent substation rather than direct district heating)
The inspection report goes in your building file. If your auditor or the State Construction Control Bureau (Valsts būvuzraudzības birojs) ever asks, you have documentation.
Five weeks out (mid-September)
Now you deal with the radiators.
Air in the system is the single most common heating complaint I hear from residents. "My radiator is cold at the top and hot at the bottom." That's air, and it needs to be bled.
If your building has automatic air vents on the risers, you're in decent shape — but they still fail. Check them. If you don't have automatic vents, schedule manual bleeding of all risers and top-floor radiators. This is usually done by the building's maintenance technician, not an external contractor, so coordinate with whoever handles your day-to-day maintenance.
This is also when you communicate with residents. Send a notice (email, portal message, physical posting in the stairwell — whatever your residents actually read) explaining:
- The heating season is approaching
- If they have individual radiator valves, they should make sure they're not fully closed
- If they notice cold spots on radiators after heating starts, they should report it immediately, not wait until November
- The expected start date and what to do if their apartment isn't warming up
I cannot stress the communication part enough. Most heating complaints in October and November are from residents who assumed their apartment would magically warm up and didn't report a problem until it had been cold for two weeks. By then, you're dealing with an angry resident and a backlog of maintenance requests.
Four weeks out (late September)
Inspect the building envelope. Not the glamorous part of property management, but it's where you lose the most money.
Walk the building — inside and out. Look for:
- Window seals in common areas (stairwells, corridors). A failed seal on a stairwell window means you're heating the street.
- Entrance door closers. If the main entrance door doesn't close properly, you're losing heat continuously. Adjust or replace the closer. This is a €40–80 fix that saves hundreds over a winter.
- Pipe insulation in unheated spaces. Attics, basements, external pipe runs. If insulation is damaged or missing, pipes lose heat — and in severe cold, they can freeze. Insulation foam is cheap. Burst pipes are not.
- Roof leaks. A roof leak that was a minor annoyance in summer becomes a serious problem when combined with freezing temperatures. Fix it now.
If your building has a thermal imaging report from a recent energy audit, pull it out. It'll show you exactly where the heat loss hotspots are. No audit? Consider commissioning one. It costs €300–500 for a typical apartment building and pays for itself in the first winter if you act on the findings.
Three weeks out (early October)
Test the system.
If you have district heating (and most Riga apartment buildings do — Rigas Siltums serves the majority of the city), coordinate with them to do a system pressure test. This is usually automatic — they'll pressurize the network and your building's substation will show the pressure. If it drops, you have a leak somewhere. Find it now, not when it's −5°C outside.
For buildings with their own boiler, do a full firing test. Run the boiler at operating temperature for at least an hour. Check flue gas temperature, CO levels, and combustion efficiency. A boiler that fires fine at +15°C ambient can struggle at −15°C if the combustion isn't tuned correctly.
This is also when you verify your heating substation settings. If your building uses a weather-compensated control system (and most modern substations do), check that the heating curve is set correctly. A wrong heating curve means either overheating (wasting money) or underheating (angry residents). The curve should match your building's thermal characteristics — if you don't know what it should be, ask your HVAC contractor. Don't guess.
Two weeks out (mid-October)
Final resident communication and a last walk-through.
Send a reminder. Yes, you already sent one. Send another. People forget. Include:
- Confirmation that heating is starting (or has started)
- Who to contact if there's a problem (name, phone, email — not just "contact the manager")
- Expected timeline for full building warm-up (it takes 24–48 hours for a building to reach stable temperature after heating starts — tell residents this so they don't panic on day one)
- A reminder to check their own radiators and report cold spots
Walk every stairwell. Feel the risers. If one riser is cold while others are warm, you have a balancing issue or an air lock. Fix it before residents notice.
One week out (late October, if heating hasn't started)
By now, heating should be on. If it's not, you're either in a mild autumn or something is wrong. Check:
- All apartments reporting adequate temperature (at least +18°C in living rooms per Latvian sanitary norms — Cabinet Regulations No. 724)
- No unusual pressure drops in the system
- Fuel supply (for boiler buildings) or district heating supply (for connected buildings) is stable
- Heating costs are tracking against budget
If something is off, don't wait. Call the contractor. A small problem on October 25th becomes a big problem on November 15th.
The budget conversation nobody wants to have
Here's the thing that catches associations off guard every year: heating is expensive, and the cost fluctuates.
For a typical 50-apartment Soviet-era building in Riga (the five-story panel buildings that make up much of the housing stock), heating costs run €0.80–1.20 per square meter per month during peak winter months. That's €3,500–5,500 per month for the building. Over a six-month heating season, you're looking at €20,000–35,000.
Where does that money come from? The monthly utility fee residents pay. If the fee is set too low — based on a mild winter or optimistic estimates — the association runs a deficit. Come spring, residents get a reconciliation bill. They hate that.
I've seen associations set monthly heating fees at €0.60/m² because "last winter was warm." Then January hits, temperatures drop to −20°C for two weeks, consumption spikes, and the association owes Rigas Siltums €8,000 more than it collected. That €8,000 becomes a special assessment or a deferred payment that strains resident relations for months.
My rule: set the monthly fee based on a cold winter, not an average one. If the winter is mild, you refund the surplus. If it's cold, you're covered. Residents prefer a slightly higher monthly fee over a surprise bill every time.
The one upgrade that pays for itself
If your building hasn't installed thermostatic radiator valves (TRVs) on individual radiators, do it. I know it's a capital expense. I know the board will push back. But the math is straightforward.
TRVs let residents control the temperature in each room. Without them, the only options are "radiator on" or "radiator off" — which means overheated apartments with residents opening windows in January to cool down. Yes, that happens. I've seen it in almost every building I've worked with.
A TRV costs €15–30 per radiator. For a 50-apartment building with an average of 4 radiators per apartment, that's €3,000–6,000 in materials. Installation adds another €2,000–4,000 if you use a contractor. Total: €5,000–10,000.
Heating savings: typically 10–15% in buildings that previously had no individual temperature control. On a €25,000 annual heating bill, that's €2,500–3,750 per year. Payback in 2–4 years.
There's also a regulatory dimension. The EU Energy Efficiency Directive (Directive 2012/27/EU, Article 9) requires individual consumption measurement and billing in multi-apartment buildings where technically feasible. Latvia implemented this through the Law on Energy Performance of Buildings. If your building hasn't complied, you're not just wasting money — you're technically in violation.
What I'd tell a new board member
If you just joined your apartment association's board and heating season feels overwhelming, here's the short version:
- Start preparing in August, not October.
- Get the system inspected by a certified contractor every year.
- Communicate with residents early and often — three times, not once.
- Set the heating fee based on a cold winter scenario.
- Walk the building yourself. Thermal imaging beats guessing.
- Fix the cheap stuff (door closers, pipe insulation, air vents) before it becomes expensive.
- If your building doesn't have TRVs, start the conversation now. It takes a board vote, a budget allocation, and a contractor booking — none of which happen overnight.
Heating season isn't a crisis if you prepare for it. It's only a crisis if you don't. And the associations that prepare are the ones where residents open their door in October, feel warm air, and think "good, the heating works." Nobody calls the manager. Nobody complains at the next meeting. Nobody demands an explanation for why their apartment is +16°C in November.
That's the goal. Not heroics. Just a warm building and a quiet phone.