Complete Guide to Cottage Opening: From Winterized to Weekend-Ready
Opening the cottage should be one of the best days of the year. Instead, it is often a stressful scramble of forgotten steps, unexpected problems, and a growing list of things that need fixing. This guide takes you through every step, in order, with time estimates so you can plan your day and actually enjoy that first evening on the dock instead of troubleshooting in the dark.
Before You Leave Home: Day-Before Prep
The difference between a smooth opening and a frustrating one often comes down to what you pack the night before. Missing a single tool or supply can waste an hour round-tripping to the nearest hardware store.
Opening Day Tool and Supply Kit
- Adjustable wrench, channel-lock pliers, and a pipe wrench for water system connections
- Teflon tape (PTFE thread seal tape) for pipe connections. Buy a fresh roll every year
- Flashlight or headlamp for crawlspace and under-cottage inspection
- Water test sample bottles from the health unit (pick up earlier in the week)
- Replacement water filters (sediment, UV bulb if applicable)
- Bottled water for drinking until well water test results come back clean
- Mouse traps or bait stations (you will almost certainly find evidence of winter visitors)
- Basic cleaning supplies, paper towels, and garbage bags for initial cleanup
- Extension cord and a portable fan or dehumidifier (the cottage will be musty after being sealed all winter)
Plan to arrive early. A proper cottage opening takes 4 to 6 hours for an experienced person, or a full day if you are methodical and thorough. Do not plan to arrive at 3 PM and expect to have everything running by dinner.
Step 1: Arrival Inspection (30-45 Minutes)
Before you turn anything on or open any valves, do a full inspection. This walk-around catches problems that are easier (and cheaper) to address before the systems are running.
Exterior Walk
Walk the entire perimeter of the cottage. Check for winter storm damage: fallen branches on the roof, damaged siding, shifted foundation or deck supports, animal entry points (chewed soffits, holes near the foundation). Check the roof from ground level for missing or lifted shingles. Look at the gutters and downspouts for damage from ice. Check the grading around the foundation. Winter freeze-thaw can shift soil away from the building, creating paths for water to flow toward the foundation instead of away from it.
Interior Walk
Open the cottage and do a room-by-room walk-through before touching any systems. Look for evidence of water intrusion: stains on ceilings and walls, warped flooring, dampness in the basement or crawlspace. Check for animal activity: mouse droppings, nesting material, chewed wires or insulation. If you find significant evidence of mice, our mouse prevention guide covers how to assess the damage and prevent it next season. Smell for mould, gas (propane), or sewage. Open windows for ventilation as you go. This initial inspection tells you the condition of the cottage before you start commissioning systems.
If You Smell Propane
Do not flip any switches, light any flames, or start any appliances. Open windows and doors for ventilation. Leave the cottage. Call your propane supplier's emergency line from outside. A propane smell on opening often means a pilot light went out during winter or a connection has loosened. It is usually minor, but it needs to be checked before you proceed with anything else.
Step 2: Water System Commissioning (1-2 Hours)
This is the most critical and time-consuming part of the opening. Take it slow. Rushing the water commissioning is how you end up with a leak that you do not discover until it has been running for three hours while you were working on something else.
Prepare the System
- Confirm all faucets and valves inside the cottage are closed. Every one. If you left them open during winterization (which is correct procedure), close them all now
- Reconnect any supply lines you disconnected during closing (washing machine hoses, dishwasher supply, icemaker line). Use new Teflon tape on threaded connections
- Replace the sediment filter cartridge. The old one sat in a damp housing for months and may have developed bacterial growth
- If you have a UV disinfection system, install a new UV bulb. Bulbs should be replaced annually regardless of hours used. Cost: $80-150
- Check the pressure tank. If it was not drained during winterization, drain it now before refilling with fresh water
Bring the Water On
- Open the main water valve slowly. Listen for the well pump to engage. If you have a well, the pump should kick on and begin building pressure
- Let the pressure build in the tank. Watch the pressure gauge. The pump should shut off between 40 and 60 PSI (depending on your system settings). If the pump runs continuously and does not build pressure, you have a leak somewhere or the pump has a problem
- Open each faucet one at a time, starting with the fixture closest to the pressure tank. Let it run until the water clears (it will be discoloured initially from sitting in the pipes). Close it and move to the next fixture
- Flush each toilet. Check that the fill valve works and the toilet fills properly. Check for leaks at the base and at the supply line connection
- Check under every sink, behind every toilet, and around every water connection for drips. Even a slow drip at a fitting needs to be tightened or resealed now
- Run the outdoor hose bib if you have one. Check for leaks at the valve and hose connection
The Pressure Test
After all fixtures are closed, watch the pressure gauge for 15 to 20 minutes. The pressure should hold steady. If it drops, you have a leak that you have not found yet. The pump cycling on periodically when no water is being used is a definitive sign of a leak. Find it before you do anything else. Check every connection, every fixture, every supply line. Look in the crawlspace or basement. A leak at this stage is far better than a leak you discover later, or one that goes undetected for the rest of the weekend.
Step 3: Water Heater Startup (30 Minutes)
Do not start the water heater until the water system is fully pressurized and leak-free. Running a water heater without water in it (a "dry fire") will damage the heating element (electric) or the heat exchanger (propane) and can be a safety hazard.
- Open a hot water faucet in the cottage. You will hear air and water sputtering as the tank fills. Leave the faucet open until you get a steady, full stream. This confirms the tank is full
- Close the faucet. For a propane water heater, light the pilot following the manufacturer instructions on the unit. Set temperature to 120 degrees Fahrenheit (49 Celsius)
- For an electric water heater, turn on the breaker. The heating element should engage. You will have hot water in 30 to 60 minutes
- Check the pressure relief valve on the side of the tank. Lift the lever briefly to confirm it works (a small amount of water should release). This valve is a critical safety device
- Check around the base of the water heater for any signs of leaks or corrosion. If the tank is more than 10 years old, note its condition and plan for replacement
Step 4: HVAC and Appliance Startup (30-45 Minutes)
Furnace or Heating System
If the furnace was running all winter on a low set point, it should already be operational. Set it to a comfortable temperature and confirm it cycles properly. If it was shut off for winter, turn on the gas valve (if applicable), set the thermostat to heat, and listen for normal ignition and fan operation. Check the furnace filter, which should be replaced at least annually. A dirty filter restricts airflow and reduces efficiency. Cost: $5 to $20 for a standard filter.
Appliance Restart
- Refrigerator: Turn on and set to normal temperature. It takes 4 to 6 hours to reach operating temperature. Clean inside before loading food. Check the drain pan underneath for mould or stagnant water
- Stove and oven: For propane, light each burner to confirm proper ignition. Run the oven briefly. If burners do not light easily, the igniter may need cleaning or the orifices may be blocked by insects (a common cottage issue with spiders nesting in burner tubes)
- Dishwasher: Confirm the supply line is connected and the drain hose is secure. Run an empty cycle with a dishwasher cleaner tablet to flush out stagnant water
- Washing machine: Reconnect supply hoses. Run an empty hot cycle with a washing machine cleaner to flush the drum and hoses
- Sump pump: Pour a bucket of water into the sump pit to confirm the pump engages and pumps out correctly. This is your flood defense. Test it on opening day, every time
Step 5: Dock Assessment (30-60 Minutes)
If your dock was removed for winter (which it should have been in most cases), assess the shoreline and dock hardware before reinstalling.
Check the shoreline for erosion from spring runoff and ice movement. Inspect dock posts or cribs for damage from ice heave. Check all dock sections for rot, loose hardware, and structural integrity before putting them in the water. Georgian Bay ice can shift boulders and bend steel, so do not assume last year's setup will work without inspection.
Water levels in Georgian Bay can vary significantly year to year and season to season. Check current water levels before installing the dock at last year's position. You may need to adjust depth or move anchor points.
Dock installation is heavy, physical work that benefits from at least two people. If the dock sections are aluminum, budget 1 to 2 hours for a typical installation. Wooden dock cribs or permanent structures require more time and possibly equipment.
Step 6: Collect Your Water Sample (5 Minutes)
After the water system has been running for at least 15 to 20 minutes, collect your well water sample for bacterial testing. Our cottage well water testing guide covers the full process in detail, including what to test for and how to read your results. Follow the sample collection procedure exactly: remove the faucet aerator, run the cold water for 5 minutes, fill the sterile sample bottle without touching the inside, and get it to the health unit drop-off within 24 hours. Plan your opening day for a Monday, Tuesday, or Wednesday so the sample reaches the lab the same day.
Until your test results come back clean (24 to 48 hours), use bottled water for drinking, cooking, and brushing teeth. Bathing and laundry are fine with untested water.
The First-Night Checklist
Before you settle in for the first evening, confirm these items are in order.
Before You Relax
- Water system is pressurized and all connections are leak-free
- Hot water is working and water heater is at operating temperature
- Water sample has been collected and is ready for drop-off
- Smoke detectors and carbon monoxide detectors have fresh batteries and are working (test them)
- Propane appliances are working correctly with no gas smell
- Refrigerator is running and cooling
- Mouse traps are set in key areas (under sinks, in closets, near food storage)
- Bottled water is accessible for drinking and cooking
- A list of any issues found during inspection is written down for follow-up (do not rely on memory)
How Long Does Each Step Take?
| Task | Time (Experienced) | Time (First Time) |
|---|---|---|
| Arrival inspection (exterior + interior) | 30 min | 45-60 min |
| Water system commissioning | 1-1.5 hours | 2-3 hours |
| Water heater startup | 15-30 min | 30-45 min |
| HVAC and appliance startup | 30 min | 45-60 min |
| Dock assessment and installation | 1-2 hours | 2-3 hours |
| Water sample collection | 5 min | 10 min |
| Total (without problems) | 4-5 hours | 6-8 hours |
These times assume no major problems are discovered. A leak that needs repair, a pump that will not prime, or animal damage that requires immediate attention can add hours. Build buffer into your schedule. If everything goes smoothly, you have earned an early start to that first evening on the dock.
When to Call a Pro vs. DIY
Most of the cottage opening process is straightforward for a handy person who has done it once or twice. But some situations call for professional help.
| Situation | DIY or Pro? | Why |
|---|---|---|
| Well pump does not start | Pro | Electrical and pump systems require licensed service |
| Propane smell on arrival | Pro (Emergency) | Safety risk. Call propane company immediately |
| Persistent leak at a fitting | DIY (usually) | Re-tape and tighten. If it persists, call a plumber |
| Furnace will not start | Pro | HVAC technician needed for diagnosis and repair |
| Evidence of significant animal damage | Pro | Wildlife removal, damage assessment, prevention |
| Mould discovered | Pro | Requires professional assessment and remediation |
| Dock installation | DIY or Pro | DIY if lightweight aluminum; pro for cribs or heavy sections |
The Bottom Line
A methodical cottage opening takes half a day but saves you from problems that last all season. The water system commissioning is the step that matters most. Do it slowly, do it completely, and check every connection twice. Everything else is secondary.
Write down every issue you find during the inspection, even minor ones. Small problems discovered at opening have a way of becoming large problems by August. Schedule the repairs now while contractors are available, not in July when everyone in cottage country is booked solid.
And test your water. Every spring, without exception. It takes five minutes and it is the most important thing you will do all opening day.
Skip the Opening Day Stress Entirely
Our Season Turn service handles the complete cottage opening before you arrive. Water system commissioning, leak testing, HVAC startup, appliance checks, water sample collection, and a full inspection report. You arrive to a cottage that is already weekend-ready. From $349 per season turn.
Arrive to a Stocked Cottage Too
Cottage Pantry stocks your fridge, pantry, and essentials before you arrive for opening weekend. No grocery store stop on the way up. No forgetting the coffee filters. Just walk in and start enjoying the weekend.