Pool Closing & Winterization

In the DMV area, we generally recommend closing your pool between mid-September and the end of October, once daytime temperatures are consistently below 65°F. Closing too late risks freeze damage to pipes and equipment when the first hard frost hits.

If you want a specific recommendation based on your pool type and location, contact us and we'll help you pick the right window.

Skipping winterization is one of the most costly mistakes a pool owner can make. Without proper closing:

• Water left in pipes, pumps, and filters can freeze and crack equipment
• Algae can bloom extensively over winter, requiring expensive treatment in spring
• Unbalanced chemistry can stain and damage pool surfaces
• Covers may fail or be difficult to secure without proper water leveling

The cost of professional winterization is a fraction of what emergency repairs can cost after a hard freeze damages your equipment.

Our pool closing service covers everything needed to protect your pool over the winter:

• Cleaning the pool, balancing water chemistry, and applying winter chemicals
• Adjusting water level for cover installation
• Draining and blowing out all plumbing lines to prevent freeze damage
• Disconnecting, draining, and winterizing pumps, filters, and heaters
• Securing and installing your winter safety cover

Yes. We work with all types of pool covers, including automatic covers. We'll clean the cover, ensure it's properly secured, and perform all necessary winterization steps around it. If your automatic cover system needs a service check before winter, we can handle that at the same time.

A professional pool closing and winterization is a flat $500, chemicals included — the same price as a pool opening. It's a small fraction of what a single hard freeze can cost in cracked pipes or equipment, which is why we recommend it every season. Opening and closing are also included in our full-service maintenance plans.

Yes — Beltway Pools is a local pool closing company serving the greater DMV, so there's a good chance we already winterize pools in your neighborhood. We schedule fall closings across Northern Virginia (Fairfax, Loudoun, Prince William and Arlington counties, plus Alexandria and Falls Church), Montgomery County, Maryland — including Bethesda, Potomac, and Rockville — and Washington, DC. Because most DMV homeowners close between mid-September and late October, fall dates fill quickly, so it's worth requesting your closing early to lock in your preferred window at our flat $500 rate.

Yes. Beyond the one-time closing and winterization, we offer optional winter check-ins that keep an eye on your pool through the off-season. We recommend at least one visit a month while the pool is closed — on each visit we test and adjust the water chemistry under the cover, inspect the equipment for any freeze issues, and re-tension the winter-cover straps that loosen after wind and snow. It's a small cost that can prevent big spring headaches like an algae bloom, staining, or a cover that has worked loose. Winter visits start at $180 each, and they're an ideal fit if you handle your own summer upkeep but want a professional checking on the pool over the winter. Request a winter service quote and we'll set up a schedule that suits your pool.