Pool Closing Service

Closing your pool properly before winter is one of the most important steps in protecting your investment. Ontario's freezing temperatures can place significant stress on plumbing lines, pumps, filters, heaters, and other equipment, leading to costly repairs if your pool is not professionally winterized.

Pool Closing Service
Understanding Your Professional Pool Closing Services

Understanding Your Professional Pool Closing Services

Since 2002, Ultimate Pool Service has provided professional pool closing services designed to protect your plumbing, equipment, and circulation system throughout Ontario's winter months while supporting a smoother, more predictable spring opening. 

Every pool has different winterization requirements, which is why we offer three professional pool closing service options based on your pool's equipment, configuration, and preferred level of involvement. 

Whether you're looking for professional equipment winterization, assistance installing your winter cover, or a complete hands-off pool closing service, our experienced technicians will help you choose the option that's right for your pool.

Understanding Your Pool Closing Options

We offer three professional pool closing service options to accommodate different pool owners, winterization requirements, and preferred levels of involvement.

Equipment Shutdown

Our Equipment Shutdown service is ideal for experienced pool owners who prefer to lower the water level and install their own winter cover while leaving the technical winterization to our experienced technicians.

This service includes:

  • Equipment winterization
  • Plumbing line winterization
  • Circulation system shutdown
  • Preparation of pumps, filters, and equipment for winter

This option helps protect your pool's critical equipment from freezing temperatures while allowing you to complete the remaining closing tasks yourself.

Partial Pool Closing

Our Partial Pool Closing service is designed for homeowners who prefer to lower the pool water level themselves while having our experienced technicians complete the winterization and install the winter cover.

This service is ideal for homeowners who:

  • Prefer to lower the water level before our arrival
  • Want professional equipment and plumbing winterization
  • Want the winter cover professionally installed

It provides a balance between homeowner involvement and professional winterization, ensuring your pool is properly prepared for winter.

Full Pool Closing

Our Full Pool Closing service is our most comprehensive option, providing complete winterization from start to finish.

This service is ideal for:

  • Homeowners looking for a completely hands-off solution
  • Pools with more complex equipment systems
  • Anyone wanting the convenience of having every aspect of the pool closing professionally completed

Our technicians lower the water level, complete the winterization, and install the winter cover, helping protect your pool throughout the winter and supporting a smoother spring opening.

Ready to Protect Your Pool for Winter?

A professional pool closing helps protect your plumbing, equipment, and circulation system from freeze-related damage while preparing your pool for the winter months. Our experienced technicians will recommend the pool closing service that's right for your pool and ensure your winterization is completed properly.

Our Pool Closing Process

Step 1

Schedule Your Closing

Choose the pool closing service that best suits your needs and schedule your appointment before freezing temperatures arrive. Our team can help you determine which service option is right for your pool.

Step 2

Pool & Equipment Assessment

Upon arrival, our technicians inspect your pool and circulation equipment to determine the appropriate winterization procedures based on your pool's configuration and the closing service you selected.

Step 3

System Winterization

Our technicians complete the required winterization procedures, including shutting down the circulation system, winterizing the plumbing lines and equipment, and preparing your pool for the winter months. The exact work performed depends on the pool closing service selected

Step 4

Final Recommendations

Once the pool closing is complete, we'll review any observations made during the service, answer your questions, and provide recommendations to help protect your pool over the winter and ensure a smoother spring opening. 

Additional services, such as cartridge filter cleaning, are available and can be scheduled at the time of booking.

Preparing Your Pool for Closing Day

Preparing Your Pool for Closing Day

A successful pool closing starts with proper preparation. Before your scheduled appointment, we recommend:

  • Removing leaves and other visible debris from the pool
  • Vacuuming the pool if necessary
  • Having your pool water professionally tested and balanced within two days of your scheduled pool closing
  • Ensuring the pool equipment area is accessible
  • Addressing any significant water quality concerns before your appointment

Proper preparation helps our technicians complete the pool closing efficiently while providing the best possible winter protection.

For the best winter protection, all pools should have their water professionally tested and balanced within two days of the scheduled pool closing. Visit our Oakville retail store for complimentary professional water testing, and our team will recommend the appropriate products based on your pool's current water chemistry to help protect your pool throughout the winter.

Why Pool Closing Matters

Why Pool Closing Matters

Pool closing involves much more than simply shutting down your equipment for the season. Proper winterization helps protect your plumbing, circulation system, and pool equipment from damage caused by freezing temperatures throughout the winter months.

A professional pool closing service helps reduce the risk of:

  • Frozen plumbing lines
  • Cracked pipes and fittings
  • Damaged pumps and filters
  • Equipment damage caused by freezing temperatures
  • Unexpected repairs before spring opening

Protecting these critical components before winter arrives helps reduce the risk of costly repairs and supports a smoother, more predictable spring opening.

How Pool Closing Fits Into Seasonal Pool Care

How Pool Closing Fits Into Seasonal Pool Care

Pool closing is the final step in a complete seasonal pool care plan.

A typical pool care cycle includes:

  1. Professional pool opening in the spring
  2. Weekly pool maintenance throughout the season
  3. Equipment inspections and repairs as needed
  4. Professional pool closing before winter

Each stage helps support water quality, equipment performance, and long-term pool health.

For pools with aging liners, equipment, or visible wear, fall can also be a good time to evaluate future upgrades before the next swimming season.

Why Choose Ultimate Pools?

Why Choose Ultimate Pools?

Since 2002, Ultimate Pool Service has helped homeowners protect their pools through Ontario's winter with professional winterization services tailored to each pool's unique requirements. 

Since 2002, Ultimate Pool Service has provided professional pool closing services designed to help homeowners protect their pools, plumbing, and equipment throughout Ontario's winter.

When you choose Ultimate Pool Service, you benefit from:

  • Since 2002 – Over two decades of professional pool service experience.
  • Experienced service technicians trained in proper pool winterization procedures.
  • Three pool closing service options to suit different pools and homeowner preferences.
  • Fully insured and WSIB-covered service team.
  • Complimentary professional water testing available through our Oakville retail store before your scheduled pool closing.
  • Expert advice and a fully stocked retail store offering pool chemicals, winterizing products, equipment, and replacement parts.
  • Complete pool care services, including pool openings, weekly maintenance, inspections, repairs, and equipment upgrades.

Our goal is to provide professional pool closing services that help protect your investment, reduce the risk of winter-related damage, and support a smoother, more predictable spring opening.

Have questions about your pool or need help choosing the right closing plan?

Our experienced team is happy to answer your questions, explain the differences between our three pool closing options, and help you choose the service that best fits your pool and your needs.

Service Areas

Service Areas

  • Oakville
  • Mississauga
  • Burlington

If you're unsure whether you're within our service area, contact us, and we'll be happy to confirm availability.

Testimonials From Our Clients

Been dealing with Ultimate Pool Service for a few years now. They were instrumental in getting our pool renovated with new liner, pump, etc. Here's where it gets really good. My employer closed their operations in Eastern Canada in May, leaving me scrambling. To minimize short term expenses I had to take over the weekly maintenance. The response from Ultimate Pool Service was 100% supportive. Since then I've learned that the weekly maintenance is tougher than it looks AND Ultimate Pool Services had been very responsive and helpful ( thanks Brian ) when I'm in over my head. Did I say THANK YOU Brian and Grant

Derek Fournier

A team I can always count on! Very happy with Ultimate! I’ve opened and closed with them for a few years now and am always impressed with the great service. The staff is always friendly, knowledgeable and professional. You can count on them to get the job done! Thanks, Brian, Grant, Sarah, and team!

Jacq Steele

Very impressed with Ultimate. Called because we were having suction issues and couldn't vacuum the pool. Someone was at our house within an hour and we discovered it was one of the owners of the business. He was extremely professional and helpful, and because he was already there and fixed the issue so quickly he did some liner pulls as well for us. Now the pool is working perfectly and looking great. Thanks Brian! We will for sure be calling Ultimate again.

David Locke

We've been using Ultimate Pool for pool maintenance for several years now. Very knowledgeable and dependable. Brian is very prompt to return voicemail messages and really knows his stuff. They always come when scheduled. Helped trouble-shoot and repaired several problems.

Greg Guzik

Visit Our Retail Store

Our Oakville retail store provides everything you need to properly prepare your pool for winter. Our knowledgeable team offers expert advice, complimentary professional water testing, and the products recommended for your pool's specific closing requirements.

Visit us for:

  • Complimentary professional water testing
  • Pool closing chemical kits and winterizing products
  • Winter covers and pool closing accessories
  • Replacement equipment and parts
  • Expert advice from our experienced team

For the best winter protection, we recommend having your pool water professionally tested and balanced within two days of your scheduled pool closing. Our team will recommend the appropriate products based on your pool's current water chemistry, sanitizer system, and winter cover type.

Frequently Asked Questions

Find answers to common questions about pool closing services.

When should I schedule my pool closing service?

The ideal time to close your pool depends on several factors, including the weather, water temperature, and the surrounding environment. Many homeowners schedule their pool closing when they are finished swimming, while others close earlier because nearby trees begin dropping leaves, acorns, beech nuts, or other debris that make the pool more difficult to maintain.

In most cases, pool closings are scheduled between late September and early November, before overnight temperatures consistently fall below freezing. Scheduling early also helps secure your preferred appointment date.

Which pool closing service is right for me?

The right pool closing service depends on how much of the closing process you want to complete yourself.

  • Equipment Shutdown is ideal for experienced pool owners who will lower the water level and install their own winter cover while leaving the technical winterization to our experienced technicians.
  • Partial Pool Closing is designed for homeowners who lower the water level themselves while Ultimate Pools completes the winterization and installs the winter cover.
  • Full Pool Closing includes lowering the water level, complete winterization, and installation of winter cover for a completely hands-off experience.

If you're unsure which option is right for your pool, our team will be happy to help.

What happens if my pool isn't ready on closing day?

To help ensure your pool closing is completed as scheduled, please remove any visible debris, vacuum the pool if necessary, ensure the equipment area is accessible, and have your pool water professionally tested and balanced within 2 days of your scheduled appointment.

For Equipment Shutdown and Partial Pool Closing services, the pool water level must be lowered to the appropriate level several days before your scheduled appointment. Lowering the water level the day before or the day of your appointment may result in the pool not being ready for service.

We send a reminder approximately three business days before your scheduled appointment outlining these preparation requirements.

Are closing chemicals required?

Yes. Properly balanced water chemistry is an important part of preparing your pool for winter. We recommend having your pool water professionally tested and balanced within two days of your scheduled pool closing so the appropriate closing chemicals can be added based on your pool's current water chemistry.

For pools with solid winter covers, we do not recommend adding liquid chlorine (shock), as high chlorine concentrations trapped beneath the cover can bleach vinyl liners and other pool surfaces.

Can I schedule my pool opening at the same time?

Yes. Many homeowners schedule their pool opening when booking their closing service to secure preferred dates for the following season.

Why is professional winterization important?

Professional winterization helps protect your plumbing, circulation system, and equipment from freeze-related damage during the winter months. A properly winterized pool also supports a smoother, more predictable spring opening while reducing the risk of costly repairs caused by freezing temperatures.