The best time of year to start a bathroom renovation
The Abimeister team · Updated · 5 min read
People often assume a bathroom renovation should wait for summer, when windows can stay open and everything dries faster. The reality is more specific to how Estonian flats and houses are heated and ventilated, and to what actually happens once the water supply is shut off for the job. This guide goes through what the heating season changes, why summer's advantage is smaller than it looks, when tradespeople tend to have more room in the diary, and what to plan regardless of the month you choose.

Does the heating season slow down drying
During the heating season, from roughly October to April, indoor air in Estonian flats and houses is drier than in summer, not more humid. District heating and radiators warm the air, and warm air holds moisture without condensing it on cold surfaces the way an unheated space would. This actually helps screed and tile adhesive cure at a steady rate, as long as the room isn't sealed up completely.
The complication is ventilation. In a Soviet-era panel flat the bathroom often relies on a single extractor duct with no openable window, and in winter you can't prop a door open to the stairwell as freely without cooling the whole flat. Tile adhesive and waterproofing membranes need air movement to cure properly, not just warmth, so a fan run for a few hours a day during the drying stages is worth arranging.
In a 1930s wooden house in Kalamaja or Nõmme, older window frames and less airtight construction mean the bathroom often gets more natural air exchange than a sealed modern flat does, even in winter. The building's age can matter more than the calendar here.
Why shutting off the water cancels out summer's advantage
The instinct that summer is better usually comes from thinking about open windows and warm air. But for most of a bathroom renovation, the water to that room is shut off, so humidity from daily showering and washing isn't part of the equation at all during the work itself. The advantage of summer air only applies to the drying of screed, adhesive and grout, and that happens at a similar pace year-round in a heated home.
What summer does change is your own comfort and the building's, not the technical process. Going without a working bathroom is easier when you can wash at a summer house or manage with a garden hose, which has nothing to do with tile adhesive curing faster. It's worth separating these two things when you're deciding.
The one genuine seasonal factor is a house with no separate water heating and a boiler that's off for the summer, or the reverse: a house where the boiler is being serviced or replaced anyway, in which case combining that work with a bathroom renovation can save a second round of disruption.
When tradespeople usually have more room in the diary
Late autumn through winter tends to be quieter for indoor renovation work in Tallinn and Harju county. Outdoor jobs such as roofing, fencing and terrace work wind down once the weather turns, and many tradespeople shift to indoor projects, which means bathroom renovations booked between November and February often get a start date sooner than ones booked in May.
Spring and early summer are the busiest stretch, partly because people plan renovations around the same instinct that summer is the right time, and partly because it overlaps with holiday cottage and terrace season. If your own schedule is flexible, asking about a start date in the quieter months can mean less waiting between getting a quote and the work actually beginning.
None of this affects the quality or guarantee of the work, only how soon it can start. A fixed quote for a bathroom renovation is valid for 30 days once given, so there's no cost to asking early and deciding later.
What to plan before the work starts, whatever the season
Regardless of when you book, a few things are worth sorting out in advance so the renovation isn't held up partway through. Chief among them is arranging where you'll wash for the duration, since the water to the bathroom is off for most of the job, from tearing out the old fittings to letting waterproofing cure.
If your building is managed by a korteriühistu, check whether shutting off water to your flat needs advance notice to the association, particularly if the shut-off valve is shared with a neighbouring flat or affects a riser serving several flats.
It's also worth deciding early whether you're buying tiles and fittings yourself or having us source them, since lead times on specific tiles can affect the schedule more than the season does.
- Agree a start date and how long the bathroom will be out of use
- Sort out an alternative place to wash, whether that's a gym, a relative, or a second bathroom
- Check with the korteriühistu if water needs to be shut off to a shared riser
- Decide whether you or we are buying tiles and fittings, and check lead times
- Confirm ventilation arrangements for the room while adhesive and waterproofing cure
The practical seasonal choices worth weighing up
If getting started sooner matters more to you than anything else, aim for the quieter months of late autumn and winter, when a start date is more likely to come through faster. If you'd rather avoid the disruption of no bathroom during the depths of winter, or you have a summer house to fall back on, that's a reasonable reason to book for the warmer months instead, just not because the tiles will dry faster.
For a full bathroom renovation, from tearing out old fittings through tiling, waterproofing and new plumbing, our prices start from 3 500 € per job depending on scope, with a fixed quote given after we've seen photos or the room itself. If you only need the tiling done, on an otherwise sound bathroom, that starts from 35 € per job.
Whichever season you choose, the guarantee on our work is the same: 24 months, covering the work itself rather than normal wear.
Drying and curing depend more on heating and ventilation than on the calendar month, so choose your renovation timing around your own washing arrangements and when a tradesperson has room to start.