As summer winds down, properly closing your pool on Long Island is one of the most important steps you can take to protect your investment. A professional pool closing prevents freeze damage, algae growth, cracked plumbing, and costly spring repairs.

At Harbor Blue Pools, we provide professional pool closing services across Long Island, tailored to local weather patterns, water conditions, and pool types.

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When Should You Close Your Pool on Long Island?

The ideal time to close your pool on Long Island is late September through October, once daytime temperatures consistently stay below 65°F.

Closing too early can lead to algae growth. Closing too late increases the risk of freeze damage to pipes, pumps, and filters.

Best practice:
✔ Wait until water temperatures drop
✔ Close before the first hard freeze
✔ Schedule early to secure your preferred date

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What’s Included in a Professional Pool Closing?

A proper pool closing involves much more than putting on a cover. Our Long Island pool closing service includes:

• Lowering the water level to the correct height
• Blowing out and winterizing all plumbing lines
• Adding winterizing chemicals to prevent algae and staining
• Removing, cleaning, and storing pool equipment (as needed)
• Installing a safety or winter pool cover
• Securing skimmers, returns, and drain lines

This process protects your pool through harsh winter conditions and makes spring opening faster and less expensive.

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Why DIY Pool Closings Often Fail

Many homeowners attempt to close their own pools, only to discover problems in spring such as:

• Cracked pipes or fittings
• Green or black algae buildup
• Damaged pumps and filters
• Stained pool surfaces
• Improperly installed covers that collapse

Professional pool closings reduce these risks and save money long-term.

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Inground vs Above-Ground Pool Closings

Inground Pools

Inground pools require full plumbing blowouts, antifreeze where needed, and precise cover installation to handle snow and ice loads.

Above-Ground Pools

Above-ground pool closings require careful water balance, cover support, and freeze protection to prevent wall collapse or liner damage.

Harbor Blue Pools services both inground and above-ground pools throughout Nassau and Suffolk County.

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Why Choose Harbor Blue Pools for Pool Closings?

Local Long Island pool professionals
Proper winterization — not shortcuts
Experienced with vinyl, fiberglass, and gunite pools
Reliable scheduling & clean workmanship
Designed to prevent springtime surprises

We don’t rush pool closings — we do them right.

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Schedule Your Long Island Pool Closing Early

Pool closing season fills up fast on Long Island. Booking early ensures:

• Better scheduling flexibility
• Proper timing based on weather
• Peace of mind heading into winter

Call Harbor Blue Pools today to schedule your pool closing (877) 209-5152
📧 Or request service online

Frequently Asked Questions

How much does it cost to close a pool on Long Island?

Pool closing costs vary based on pool size, type, and cover. Most Long Island pool closings range from $250–$750 depending on services required.

Can I close my pool myself?

You can, but improper winterization often leads to costly spring repairs. Professional pool closings greatly reduce risk.

Do I need to close my pool if it’s heated?

Yes. Even heated pools should be closed unless actively maintained year-round.

What happens if I close my pool too early?

Warm water encourages algae growth, which can stain surfaces and complicate spring opening.

Do you install pool covers?

Yes. We install safety covers and winter covers as part of our pool closing service.