pool-service

Pool Closing Cost in Minnesota: What Winterizing an In-Ground or Above-Ground Pool Runs in 2026

Pool closing prices in Minnesota for 2026: in-ground and above-ground winterization, proper line blow-outs, safety covers for snow load, timing, and DIY vs pro.

Pool Closing Cost in Minnesota: What Winterizing an In-Ground or Above-Ground Pool Runs in 2026

Closing a pool in Minnesota costs $300 to $600 for a standard in-ground winterization in 2026, and $175 to $350 for an above-ground pool. Those prices cover the service visit only; a new winter cover, antifreeze, and chemicals are usually extra.

Minnesota winters are the reason closing here costs more than in the South and involves more steps. Frost pushes three to five feet into the ground across the Twin Cities and deeper up north, and a single line left with water in it will split by January.

Pool season in the state is short, roughly Memorial Day to Labor Day, and the closing window is tight. Most Twin Cities pool companies start closings the second week of September and finish by mid-October, before nighttime lows settle into the 20s. Booking in August is normal; waiting until the first frost means paying a rush fee or doing it yourself.

What a Minnesota Pool Closing Includes

A full in-ground closing starts with balancing the water chemistry and adding winter algaecide and a metal sequestrant. The technician lowers the water level below the skimmer and returns, usually 12 to 18 inches, then blows out every line with a high-volume air compressor. That is the step that matters most in Minnesota, and it is where cheap or rushed closings fail.

After the lines are clear, the technician plugs the returns and skimmer, adds pool antifreeze to any line that cannot be fully cleared, and removes the pump, filter, and heater drain plugs. Chlorinators, salt cells, and automatic cleaners come out and get stored. The last step is installing the winter cover and securing it with water bags, a cable and winch, or the anchors of a safety cover.

A closing visit takes two to three hours for a typical residential pool. Companies that quote a closing in under an hour are skipping something, and the something is usually the line blow-out.

What Costs Extra

Chemicals for closing run $50 to $120 if not included. Pool antifreeze is $15 to $30 per gallon, and a typical in-ground pool needs two to four gallons. A new winter cover, if the old one is torn, costs $150 to $400 for a standard tarp-style cover with water bags and $1,200 to $3,500 for a mesh or solid safety cover with anchors.

Heater winterization is sometimes billed separately at $50 to $100, and pools with in-floor cleaning systems, water features, or spillover spas add $75 to $200 because there are more lines to blow.

Prices Around the State

Twin Cities metro closings sit at the top of the range. A standard in-ground closing in Edina, Minnetonka, Eden Prairie, or Woodbury runs $400 to $600, and larger pools with attached spas can hit $700. The northern and western suburbs, Anoka and Wright County, price a little lower.

Rochester, St. Cloud, Mankato, and Duluth have fewer pool companies and prices vary more. A typical in-ground closing in these areas runs $300 to $500, but a travel fee of $50 to $100 is common for homes outside the city. Lake country properties around Brainerd and Alexandria often have pool companies that also handle docks and lifts, and bundling the two saves money.

Above-ground closings are simpler and cheaper everywhere: $175 to $350 in the metro and $150 to $275 outstate. The steps are the same, minus the underground plumbing, and a homeowner with a shop vac and a winter cover can do the job.

Why Minnesota Costs More Than Warmer States

A pool closing in Georgia or Arizona is a chemical treatment and a cover. A Minnesota closing is a plumbing job. Blowing lines with a proper compressor, plugging every fitting, and draining every piece of equipment takes time and gear, and a mistake costs $500 to $3,000 in cracked pipes or a split heater exchanger come spring.

That is why the price gap between a cheap closing and a good one matters more here than the dollar difference suggests.

Heaters, Salt Systems, and Automatic Covers

Gas pool heaters need their own attention at closing because the heat exchanger holds water in narrow passages that crack when frozen. Blowing out the heater and pulling its drain plugs is standard, and some companies bill it as a separate $50 to $100 item. Heat pumps for pools, which are less common in Minnesota but growing, need the same treatment.

Salt chlorine generators come off and go inside for the winter, since the cell can crack. Automatic covers have their own closing steps, including draining the cover box and setting the cover at the right position, and companies charge $75 to $150 extra for pools with them.

Winter Covers and Snow Load

Snow load is a Minnesota-specific concern. A standard tarp cover with water bags will sag under a heavy snow and can tear, dump debris into the pool, or let the water bags freeze and split.

Mesh safety covers let snowmelt drain through and hold up well, though they allow fine debris and sunlight in, which means a dirtier opening. Solid safety covers keep the pool cleanest but need a cover pump to remove standing water and can bow under deep snow.

For a new safety cover, budget $1,200 to $2,000 for a mesh cover on a 16 by 32 foot pool and $2,000 to $3,500 for a solid cover with a pump. Installation of the anchors on a first-time cover adds $300 to $600.

Cover pumps, which keep rain and melt from pooling on a solid cover, cost $60 to $150 and should run until hard freeze, then come off for the winter.

Timing the Closing

Water temperature is the trigger, not the calendar. Closing when the water is consistently below 65 degrees keeps algae from growing under the cover, and in the Twin Cities that usually means late September to early October.

Closing too early, in warm water, means opening to a green pool in May. Closing too late risks a freeze before the lines are cleared.

Pool companies fill their closing calendars fast. Booking by mid-August for a late September slot is typical in the metro. Rush closings after the first frost warning carry fees of $75 to $150, and some companies will not take new customers after October 1.

Running the pump a few extra weeks into September is cheap insurance if you cannot get an early slot. Just make sure the pump runs continuously if a hard freeze is forecast before the closing.

Doing It Yourself vs. Hiring a Pro

A homeowner can close an above-ground pool with a shop vac, plugs, antifreeze, and a cover for $75 to $150 in supplies. In-ground closings are harder.

The compressor that pool companies use pushes far more air than a shop vac, and clearing a long return line or a heater completely takes experience. Many Minnesota homeowners hire out the in-ground closing and handle the opening themselves, since a bad opening costs a few chemicals and a bad closing costs a plumber.

If you do it yourself, watch the lines while blowing. Air should bubble steadily out each return before you plug it, and the skimmer line should blow clear into the pool. Add antifreeze to any line you are not sure about.

Some pool companies sell an opening and closing package at 10% to 15% off the two services booked separately, and many include a spring inspection of the equipment. You can compare local companies through the pool service providers listed for Minnesota on this directory, and the Minnesota home services blog has more on what seasonal home services cost around the state.

Frequently Asked Questions

How much does it cost to close an in-ground pool in Minnesota?

A standard closing runs $300 to $600 in 2026, with Twin Cities suburbs at the top of the range. Chemicals, antifreeze, and a new cover are usually extra.

When should I close my pool in Minnesota?

When the water is consistently below 65 degrees, which is typically late September to early October in the Twin Cities and a week or two earlier up north.

Do I need pool antifreeze if the lines are blown out?

Antifreeze is insurance for any line that might hold a low spot of water, and most Minnesota pool companies add it to the skimmer line and any long runs. Two to four gallons is typical.

What happens if I close my pool too late?

A hard freeze before the lines are cleared can crack underground plumbing, the pump housing, or the heater exchanger. Repairs run $500 to $3,000 and are not discovered until spring.

Is a safety cover worth it in Minnesota?

For snow load, yes. Mesh safety covers drain snowmelt and last 10 to 15 years, versus three to five for a tarp cover with water bags that can freeze and split.

How much does an above-ground pool closing cost?

Professional closing runs $175 to $350. A homeowner can do it for $75 to $150 in supplies with a shop vac and a winter cover.