Hot Tub Winterization
Protect your investment through Colorado's harsh winters with professional winterization service.
Why Winterize Your Hot Tub?
Colorado winters are no joke. When temperatures drop below freezing — and in Denver, they regularly plunge well below zero — any water left in your hot tub's plumbing can freeze, expand, and crack pipes, pumps, and even the spa shell itself. The cost of repairing freeze damage can easily run into thousands of dollars.
If you are not planning to use your hot tub through the winter months, proper winterization is the smartest way to protect your investment. DND Spas has winterized countless hot tubs across the Denver metro area since 1990, and we know exactly what it takes to keep your spa safe until spring.
Our Winterization Process
Our winterization service is thorough and methodical. We do not cut corners because we know what Colorado winters can do to a hot tub that is not properly prepared.
Complete Drainage
We completely drain all water from the spa shell, plumbing lines, pumps, heater, and every component where water can collect. Even small amounts of trapped water can cause freeze damage, so we use specialized equipment to ensure nothing is left behind.
Line Blowing & Antifreeze
We blow compressed air through every plumbing line to force out residual water from jets, returns, and internal piping. Where needed, we add non-toxic antifreeze as an extra layer of protection for any moisture that cannot be fully removed.
Sanitization
Before buttoning everything up, we thoroughly sanitize the shell, plumbing, and all internal surfaces. This prevents mold, mildew, and bacteria growth during the months your spa sits dormant, so it is fresh and clean when you are ready to start it up again.
Secure Covering
We securely fasten and seal the hot tub cover to prevent snow, rain, debris, and animals from getting inside. A properly secured cover also provides insulation that helps protect internal components from extreme temperature swings.
Protect Your Investment
A hot tub is a significant investment — typically several thousand dollars. Professional winterization costs a fraction of what freeze damage repair costs. Dan and Debbie have seen firsthand what happens when spas are not properly winterized: cracked plumbing, burst pumps, damaged heaters, and in worst cases, cracked shells that total the unit entirely.
Do not take the risk. Let the professionals who have been doing this since 1990 handle your winterization, and rest easy knowing your spa will be ready and waiting when warm weather returns.
Schedule Winterization
Do not wait until the first freeze. Schedule your winterization early and protect your spa.
(303) 789-2980 Send a MessageWinter Tips
- Winterize before the first hard freeze
- Do not just turn off the power and cover it
- Freeze damage voids most warranties
- Professional winterization is always worth it
Using Your Spa in Winter?
If you plan to keep using your hot tub through winter, you do not need winterization — but you do need to ensure your spa is properly maintained. Keep the water temperature up, check the cover seal, and monitor for any freeze-related issues during extreme cold snaps.
Learn about winter maintenance