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As the colder months approach in Western North Carolina, protecting your new construction home's plumbing system becomes a priority. With temperatures that can drop well below freezing in Asheville, Black Mountain, Weaverville, and surrounding areas, taking preventative measures is crucial to avoid costly damage and inconvenient repairs.

At Barlow Plumbing Service, Inc., we've helped countless homeowners protect their new construction investments from winter's harsh effects. With more than 25 years of experience serving western North Carolina, we understand the unique challenges that mountain homes face during winter. This guide will walk you through essential steps to winterize your new construction's plumbing system properly.

Why Winterizing New Construction Is Different

New construction properties require special attention when it comes to winterization. Unlike established homes that have weathered several seasons, new plumbing systems haven't been "tested" by extreme temperatures yet. Additionally, newer homes often feature modern plumbing configurations and materials that need specific winterization approaches.

Some key differences include:

  • New pipes that haven't fully settled may be more susceptible to expansion and contraction
  • Recent installation points might not be fully sealed against cold air infiltration
  • Contemporary plumbing materials respond differently to freezing conditions than older materials
  • Newer fixtures and appliances may have special winterization requirements

Let's explore the essential steps to protect your new construction's plumbing system throughout the winter months.

Identifying Vulnerable Plumbing Areas in New Construction

Exterior Plumbing Components

The most vulnerable areas of your new construction's plumbing system are those exposed to outdoor temperatures. These include:

  • Outdoor spigots and hose bibs
  • Irrigation systems
  • Pool or spa plumbing
  • Exposed pipes in unheated areas (crawl spaces, attics, garages)
  • Water supply lines along exterior walls

In new construction, these areas might not have been properly insulated during the building process, especially if construction was completed during warmer months when freeze protection wasn't top of mind.

Interior Areas Requiring Special Attention

Even inside your new home, certain areas are more susceptible to freezing:

  • Pipes in unheated or rarely used rooms
  • Plumbing in basements or crawl spaces
  • Pipes along exterior walls or in exterior-facing cabinets
  • Laundry rooms located in garages or other unheated spaces
  • Fixtures and pipes in second homes or vacation properties that may remain unoccupied

Essential Winterization Steps for New Construction

1. Disconnect and Drain Outdoor Water Sources

One of the most critical steps in winterizing your new construction home is properly disconnecting and draining outdoor water sources.

Disconnect Garden Hoses:

  • Remove all garden hoses from outdoor spigots
  • Drain water completely from hoses before storing
  • Store hoses in a heated area if possible to prevent cracking

Prepare Outdoor Spigots:

  • Install frost-free hose bibs if they weren't included in your construction
  • Use insulated covers on all exterior spigots
  • Consider shutting off water to exterior faucets from interior shut-off valves if available

Address Irrigation Systems:

  • Have your irrigation system professionally blown out to remove all water
  • Shut off the main water supply to the system
  • Insulate above-ground irrigation components
  • Protect backflow preventers with insulated covers

2. Insulate Vulnerable Pipes

Proper insulation is critical for freeze prevention in new construction homes.

Identify All At-Risk Pipes:

  • Check unheated areas like crawl spaces, attics, and garages
  • Look for pipes along exterior walls
  • Pay attention to areas where plumbing enters or exits your home

Apply Appropriate Insulation:

  • Use foam pipe insulation sleeves for exposed pipes
  • Consider heat tape or heating cables for particularly vulnerable areas
  • Ensure all joints, bends, and valves are properly covered
  • Seal any gaps where cold air might reach pipes

Focus on Trouble Spots:

  • Insulate pipes in north-facing walls, which receive less sunlight
  • Pay special attention to areas where pipes have frozen in neighboring homes
  • Don't forget about drain pipes, which can also freeze

3. Seal Air Leaks

In new construction, settling can create gaps that allow cold air to infiltrate your home and affect plumbing systems.

Check for and Seal These Common Leak Points:

  • Gaps around window and door frames
  • Areas where pipes or wires enter the home
  • Vents and exhaust fans
  • Utility access points
  • Basement rim joists and sill plates
  • Attic hatches and pull-down stairs

Use Appropriate Sealing Materials:

  • Caulk for smaller gaps and cracks
  • Expanding foam for larger openings
  • Weather stripping for movable components like doors
  • Insulation for larger areas

4. Maintain Proper Indoor Temperature

Maintaining a consistent indoor temperature is crucial for preventing frozen pipes in new construction.

Temperature Recommendations:

  • Keep your home at a minimum of 55°F (13°C), even when unoccupied
  • Maintain a consistent temperature day and night
  • Consider a programmable or smart thermostat with freeze protection features
  • Remember that new construction may have different heating patterns than established homes

Circulate Warm Air:

  • Keep interior doors open to promote airflow
  • Allow warm air to reach plumbing by opening cabinet doors beneath sinks
  • Use ceiling fans on low, reverse setting to circulate warm air
  • Consider supplemental heating for extremely vulnerable areas

5. Prepare for Temporary Absences

If you plan to be away from your new construction home during winter, take these additional precautions:

Short Absences (Less than a week):

  • Keep heat at a minimum of 55°F (13°C)
  • Open cabinet doors to expose pipes to warmer air
  • Ask a trusted neighbor to check on your home
  • Consider a temperature monitoring system with alerts

Extended Absences:

  • Consider shutting off the main water supply
  • Drain the entire plumbing system if appropriate
  • Add non-toxic antifreeze to drain traps and toilets
  • Have a professional inspection before your return

6. Install Freeze Prevention Devices

New construction homes can benefit from modern freeze prevention technology.

Consider Installing:

  • Freeze-proof sillcocks for outdoor faucets
  • Water leak detectors with freeze alert capabilities
  • Automatic excess flow shut-off valves
  • Smart water monitors that detect unusual water flow patterns
  • Pipe heating cables with thermostatic controls

7. Protect New Construction Sump Pumps

If your new construction has a sump pump, it needs special attention during winter.

Winterization Steps:

  • Ensure the discharge pipe is properly graded and free of obstructions
  • Consider installing an insulated cover for the discharge pipe
  • Check that the sump pump is working correctly before winter
  • Install a battery backup system for power outages during winter storms
  • Insulate the sump pit cover to prevent cold air infiltration

For more on how to prepare your plumbing for winter, check out our blog post on the subject here.

Special Considerations for Mountain Homes

Living in Western North Carolina means dealing with unique challenges for new construction winterization:

  • Higher elevations experience more extreme temperature fluctuations
  • Steeper terrain can affect how water drains from your property
  • Mountain homes may have longer pipe runs that require extra protection
  • Snow load and ice dams can create additional stress on plumbing systems
  • Power outages are more common in rural mountain areas

For homes in higher elevations of Asheville, Black Mountain, or Weaverville, consider these additional steps:

  • Install additional insulation in crawl spaces and attics
  • Use heat tape on more sections of plumbing than might be necessary at lower elevations
  • Consider a whole-house generator to maintain heat during power outages
  • Be particularly vigilant about sealing all air leaks
  • Consider a water shut-off system that can be controlled remotely

What To Do If You Suspect a Frozen Pipe

Despite your best winterization efforts, pipes can still freeze during extreme weather events. If you suspect a frozen pipe in your new construction home:

  1. Identify the affected area by checking which fixtures aren't working
  2. Keep faucets open to relieve pressure and allow water to flow once thawing begins
  3. Apply gentle heat using a hairdryer, heating pad, or towels soaked in hot water
  4. Never use open flames or high-heat devices to thaw pipes
  5. Contact Barlow Plumbing Service immediately if you cannot locate or safely thaw the pipe

Professional Winterization Services

While many homeowners can handle basic winterization tasks, new construction homes often benefit from professional assessment and service. At Barlow Plumbing Service, we offer comprehensive winterization packages that include:

  • Complete plumbing system assessment specific to new construction
  • Identification of vulnerable areas that might have been overlooked during construction
  • Professional-grade insulation installation
  • Advanced freeze prevention system installation
  • Customized winterization plans for mountain homes
  • Documentation for insurance purposes

Planning a new construction? Check out our blog post about green plumbing solutions in new construction homes. 

Frequently Asked Questions About New Construction Winterization

When should I start winterizing my new construction home?

It's best to start the winterization process in early fall, before the first freeze. In Western North Carolina, we recommend beginning winterization procedures by mid-October to ensure complete protection before temperatures drop.

Are newer plumbing materials more resistant to freezing?

While some modern materials like PEX piping have more freeze resistance than traditional copper or galvanized steel, all plumbing materials are susceptible to freezing and should be properly protected.

How do I know if my builder already incorporated freeze protection?

Ask your builder for documentation about winterization features included in your construction. Better yet, schedule a professional plumbing inspection to verify what protections are in place and identify any vulnerabilities.

How do I winterize my tankless water heater?

Tankless water heaters in new construction should be winterized according to the manufacturer's instructions. This typically involves flushing the system and may require adding antifreeze if the home will be unoccupied.

Should I winterize my plumbing if I have radiant floor heating?

Yes. While radiant floor heating helps keep some pipes warm, not all plumbing will be protected by this system. Exposed pipes and those in unheated areas still require proper winterization.

Conclusion

Properly winterizing your new construction home's plumbing system is a vital investment in protecting your property. The steps outlined above will help safeguard your pipes against freezing temperatures and prevent costly water damage repairs.

At Barlow Plumbing Service, Inc., we understand the unique challenges of winterizing new construction in Western North Carolina's mountain climate. Our experienced plumbing professionals are ready to help you develop and implement a comprehensive winterization plan tailored to your specific property.

Don't wait until temperatures drop to protect your investment. Contact Barlow Plumbing today to schedule your new construction winterization service.

Contact Barlow Plumbing

Business Hours
Monday - Friday 8 a.m. - 4:30 p.m.

Asheville, NC

(828) 251-9812

Black Mountain, NC

(828) 669-0755

Weaverville, NC

(828) 645-6892