Yes, pools in Spring, The Woodlands and Conroe stay open all winter, so the water still needs balancing, circulation and cleaning every week. Winter service is lighter in some ways. Skipping it is how a clear pool turns green by spring, or how freeze damage at the equipment pad goes unnoticed.
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Pools here never really close
Up north, people drain down, cover the pool and wait for spring. We don’t winterize that way around here. Pools in this part of Texas stay full and open all year. Most winter days are mild, but a few nights a year drop below freezing. That mix means the pool never fully goes to sleep. Water that sits keeps changing. That’s why our weekly pool service keeps running through the winter. For more on the year-round side, see year-round pool service in Texas.
Why weekly service keeps going in winter
The water still needs balance and circulation
Chemistry drifts even when nobody swims. Rain, debris and sun all pull on it. The CDC’s home pool guidance calls for a pH of 7.0 to 7.8. The same CDC guidance calls for free chlorine of at least 1 ppm in pools, at least 2 ppm if you use cyanuric acid (stabilizer), and at least 3 ppm in hot tubs. The CDC also says to test chlorine and pH at least twice a day. Those targets don’t take the winter off. Circulation matters too. Moving water is how chlorine reaches every corner and how the filter does its job.
Fall leaves don’t stop
Oak leaves and pine needles start dropping in fall and keep coming. They load skimmer, pump and cleaner baskets fast. A full basket cuts flow. Leaves that sink to the floor break down and can feed algae. Our fall pool cleaning page covers the heavy-leaf weeks in more detail.
Leaves on the floor
A Conroe pool floor covered in dead leaves before cleaning.
Weekly skimming
Netting the pool during a weekly service visit.
Before green-to-clean
A green pool before green-to-clean treatment.
Heaters get used
Winter is when people fire up the spa or heat the pool. Gas heaters need a good gas supply and working ignition. Heat pumps need open airflow. Both need steady water flow, because low flow trips the heater’s safety switches. Hayward’s knowledge base says its heat pumps work in about 45-50°F air and cut off when the air drops below 50°F. So a heat pump that stops on a cold day may be doing what it was designed to do. If a heater won’t fire at all, see our pool heater repair page.
Freeze nights
Moving water protects pipes. Many automation systems have a freeze-protection setting that runs the pump when it gets near freezing. Check that yours is turned on. During the February 2021 winter storm, power went out, pumps stopped, and freeze damage was widespread. After a cold night, someone needs to look at the pad for cracked fittings, leaks or a pump that didn’t come back on.
Salt cells slow down in cold water
Salt cells make less chlorine as the water cools. That means chlorine can slide even when the system looks like it’s running. Weekly testing catches it before the water turns. Cells also wear out with age. On a weekly visit in Benders Landing, we found a worn Pentair IntelliChlor IC40 salt cell, diagnosed it the same day and installed an upgraded IntelliChlor Plus40 the next day. You can read about that salt cell replacement in Benders Landing.
Algae still grows on warm days
A run of warm, sunny winter days can be enough for algae. Low chlorine and a few leaves on the floor make it easier. Brushing walls, steps and surfaces every week helps keep it from getting a foothold.
Problems are cheaper caught early
Every visit includes monitoring filter pressure and looking over the equipment. After each visit you get an emailed service report with photos. A noisy motor, a weeping seal or a rising filter gauge is usually a smaller fix when it’s caught early. Left alone, it can become a bigger repair by spring.
What changes in winter
- Run time: Cooler water usually needs fewer filtration hours. Federal pool pump efficiency standards took effect in 2021 and, for most in-ground pools, effectively require variable-speed motors, which can cut energy use by about 70% vs single-speed (Appliance Standards Awareness Project). Those motors also make lower winter speeds easy. Keep freeze protection active either way.
- Chemistry demand: Less sun and fewer swimmers usually mean chlorine lasts longer. Salt cell output drops at the same time, so the balance still needs watching.
- Debris load: Fall and early winter bring heavy leaf and needle loads.
- Equipment focus: Attention shifts to heaters, flow and freeze protection.
What pausing service risks
- A pool that turns green before spring and needs a full green-to-clean recovery.
- Freeze damage at the pad that nobody sees until the pump is switched back on.
- Clogged baskets and filters that cut flow and trip the heater.
- A salt cell that stops keeping up without anyone noticing.
A winter pool calendar, September to February
If you want the pad looked over before cold weather, see our pool equipment winter inspection.
Year-round service across our area
We run the same weekly routes all winter. That includes pool service in Spring, TX, weekly pool service in The Woodlands and pool service in Conroe, plus Magnolia, Tomball and Porter. There are no contracts. Repairs on Pentair, Hayward and Jandy equipment are done in-house, so a problem found on a winter visit doesn’t get handed off to another company.
Common Questions
Do I need pool service in the winter in Texas?
Yes. In Spring, The Woodlands and Conroe, pools stay open all year. Chemistry still drifts and leaves keep falling. A few nights a year drop below freezing. Weekly service keeps the water balanced and the equipment running. It also helps catch freeze damage or a weak salt cell early, before you end up with a green pool or a bigger repair in spring.
Should I turn off my pool pump in winter?
No. Moving water protects pipes and keeps chlorine circulating. You can usually run fewer hours or lower speeds on a variable-speed pump when the water is cool. Many automation systems also have a freeze-protection setting that runs the pump near freezing. Check that yours is turned on and that the pump comes back on after any power outage.
Why is my salt water pool low on chlorine in winter?
Salt cells make less chlorine as the water cools, so levels can slide even when the system seems to be running. An aging cell can also be wearing out. Weekly testing shows when chlorine is dropping so it can be corrected. On one weekly visit in Benders Landing, we found a worn cell and installed an upgraded one the next day.
Why does my heat pump stop working when it gets cold?
Heat pumps pull heat from the air, so they have limits. Hayward’s knowledge base says its heat pumps work in about 45-50°F air and cut off when the air drops below 50°F. Low water flow from clogged baskets or a dirty filter can also trip heater safety switches. If it won’t run in normal weather, it needs a look.
What happens if I stop pool service over the winter?
The most common results are a green pool by spring and freeze damage that nobody noticed. Clogged baskets and filters can cut flow, trip the heater and strain the pump. Algae can grow on warm, sunny winter days when chlorine runs low. Catching these on a weekly visit usually means a smaller fix than a full recovery later.
Owner-operated from E Benders Landing Blvd in Spring, 4.9 stars across 135+ Google reviews, no contracts. Serving Spring (77386, 77385), The Woodlands (77381) and Conroe. Request a free quote.
Call or text Steven: (832) 447-4236