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Water heater swap and backflow testing in Highlands Ranch, CO 80126
Highlands Ranch is one large planned community with thousands of houses of similar age, and that means similar problems arriving in waves. We see water heater replacements, sump pump failures and sprinkler backflow work on street after street.
Highlands Ranch at a glance
- ZIP codes
- 80126, 80129, 80130
- County
- Douglas
- Population
- About 103,400 (2020 Census)
- From our Aurora office
- Roughly 14 miles via I-225, I-25 and C-470
- Calls we get most
- Heater replacements, sump pumps, backflow devices
Yes. Highlands Ranch sits roughly 14 miles south and a little west of our Aurora office, reached by I-225, I-25 and C-470. We cover 80126, 80129 and 80130, from the streets near Highlands Ranch Mansion to the newer sections on the east side. We answer 24/7 and give you a realistic window before we head your way.
Planned neighborhoods mean plumbing that ages together
Highlands Ranch is a census designated place, not an incorporated city, and it grew as one master-planned community built in phases over several decades. Houses in the same phase often share the same builder, the same fixtures and the same water heater models. When the first tanks on a street start to fail, the rest tend to follow within a few years, and we often replace heaters on neighboring houses in the same month.
The older phases date from a period when polybutylene supply pipe was still being installed in some homes, so it is worth checking exposed pipe near the heater and under sinks. Many houses have finished basements with sump pits, and a pump that fails during a spring storm can soak carpet and drywall. A yearly test of the pump and float catches most of those failures early.
Nearly every yard here has an automatic sprinkler system, and each has a backflow assembly near the house. Those assemblies freeze and crack when a fall cold front arrives before the system is blown out. Gas water heaters at this elevation need a high-altitude setup, and replacements generally require a permit and inspection, which we arrange as part of the job.

Common calls
Five jobs that keep us busy in Highlands Ranch
Water Heater Installation
Heaters from the same build phase tend to fail within a few years of each other. We replace them with the venting, relief line and permit handled in one visit.
More on water heater installationBackflow Testing & Repair
Every irrigated yard has a backflow assembly near the house. We test it, repair failed checks and replace bodies that cracked in an early freeze.
More on backflow testing & repairSump Pump Repair & Installation
Finished basements with sump pits depend on a working pump during heavy spring rain. A stuck float or worn motor is the usual cause of water on the floor.
More on sump pump repair & installationToilet Repair
Original toilets in older phases develop running fill valves, worn flappers and loose bases. Small repairs stop the waste of water and protect the floor.
More on toilet repairWhole-House Repiping
Some homes in the earliest phases still carry gray polybutylene supply line. Replacing it with PEX ends the worry about a fitting giving way above a finished ceiling.
More on whole-house repipingLocal tips
Seasonal plumbing checklist for Highlands Ranch

- Ask your neighbors about their heaterIf houses on your street were built together and theirs failed, yours is likely close. Plan the replacement before it leaks into a finished basement.
- Wrap the backflow in fallAfter blowing out the sprinkler system, close the backflow valves and cover the assembly with an insulated bag to protect it from a sudden freeze.
- Add a sump alarmA battery alarm in the sump pit beeps when water rises above the normal level. It gives you warning before a failed pump floods the room.
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Popular services in Highlands Ranch
Questions
Plumbing questions from Highlands Ranch
Why are so many water heaters failing on my Highlands Ranch street?
Houses built in the same phase usually got heaters of the same make and age at the same time. Tank heaters wear out on a similar schedule, so failures cluster. If your neighbors have replaced theirs, check the age on your label and plan ahead before yours leaks.
My Highlands Ranch backflow preventer cracked over winter. Can you replace it?
Yes. A backflow assembly left full of water when a cold front arrives can split its body or damage its checks. We replace the damaged parts or the whole assembly, test it and show you how to drain it properly before the next freeze.
Is Highlands Ranch part of your regular service area?
Yes. We cover all three Highlands Ranch ZIP codes. It is one of the farther parts of our south metro area, so we give you a realistic arrival window when you call. Urgent leaks and backups get handled 24/7.
Plumbing trouble in Highlands Ranch?
Call any hour. We tell you on the phone how soon a plumber can get to you.