New Home Plumbing Inspection

Buying a new construction home in Douglas County? You might assume everything is perfect since it is brand new. Unfortunately, plumbing defects are common in new builds - and you have limited time to identify and report them under warranty. This guide helps homeowners in Sterling Ranch, Crystal Valley Ranch, Terrain, and other new communities protect their investment.

Why New Homes Need Plumbing Inspections

"It is new, so nothing can be wrong" is a costly assumption. New construction plumbing issues are surprisingly common:

• Speed of construction: Builders under pressure to close homes may rush plumbing work
• Subcontractor quality varies: The low bidder may not be the most careful
• Debris from construction: Drywall dust, wood chips, and debris end up in drains
• Settling shifts pipes: New foundations settle, stressing pipe connections
• Inspector overload: Municipal inspectors check for code compliance, not quality
• Altitude adjustments: Water heaters need specific adjustments for Colorado elevation

Common New Construction Plumbing Defects

PEX Connection Issues

Modern Douglas County homes use PEX (cross-linked polyethylene) piping. While PEX is excellent material, improper installation is common:

• Loose crimp rings: Connections that are not properly crimped can leak over time
• Kinked lines: PEX bent too sharply restricts water flow
• Improper support: Unsupported runs can sag and trap air
• Wrong fittings: Mixing brass and copper fittings causes galvanic corrosion

These issues often do not show up immediately - leaks develop months or years later when connections fail.

Water Heater Problems

Builder-grade water heaters are typically the minimum quality that meets code:

• Missing altitude adjustment: Gas water heaters need adjustments above 5,000 feet - Sterling Ranch sits at 5,800+ feet
• Inadequate sizing: Builders often install smaller units than homes need
• Missing expansion tank: Required by code but sometimes omitted
• Improper venting: Especially common with tankless installations
• Missing seismic straps: Required in Colorado but often forgotten

Drain Line Issues

Drain problems in new construction often stem from:

• Construction debris: Drywall mud, wood shavings, concrete in lines
• Improper slope: Drains that do not slope correctly toward the sewer
• Missing cleanouts: Required access points not installed
• Settling-caused sags: "Bellied" sections that trap waste

Fixture Installation

Mass-produced fixtures installed quickly lead to:

• Loose faucet connections: Under-sink fittings not properly tightened
• Toilet seal issues: Improperly set toilets that leak at the base
• Missing caulk: Around tubs, showers, and sinks
• Garbage disposal problems: Improper installation, missing dishwasher air gap

Douglas County-Specific Issues

Local conditions create unique problems:

• Hard water damage: Even new fixtures show scale buildup within months
• Freeze protection: Outdoor faucets and garage lines may lack proper insulation
• Soil settling: Douglas County clay soils cause significant foundation and pipe movement
• Well systems: New homes in Larkspur area may have well installation defects

New Construction Plumbing Checklist

Use this checklist when inspecting your new home or hiring a plumber to inspect:

Water Supply System

• Test water pressure at multiple fixtures (should be 40-80 PSI)
• Check for pressure fluctuations when multiple fixtures run
• Verify main shutoff valve operates smoothly
• Inspect all visible supply lines for proper support
• Confirm PRV (pressure reducing valve) is installed if pressure exceeds 80 PSI

Water Heater

• Verify altitude adjustment was made (check label or settings)
• Confirm proper sizing for home (see our sizing guide)
• Check seismic straps are installed
• Verify expansion tank is present and functional
• Test T&P relief valve (should release water when lifted)
• Check venting is properly installed (gas units)
• Confirm drain pan is present (if over living space)

Drain and Vent System

• Run all fixtures and check for slow drainage
• Listen for gurgling (indicates venting problems)
• Verify vent pipes extend through roof properly
• Locate all cleanout access points
• Check under sinks for signs of leaks or moisture
• Flush all toilets and observe fill/flush cycle

Fixtures

• Check all faucets for leaks and proper operation
• Verify hot and cold are on correct sides
• Test all toilets for loose mounting, proper flush, and tank fill
• Check shower/tub drains for debris or slow flow
• Verify dishwasher drains properly
• Test garbage disposal operation
• Check washing machine connections

Outdoor Plumbing

• Test all hose bibs for proper flow
• Verify frost-free faucets are properly installed
• Check irrigation connections (if installed)
• Locate and test outdoor shutoff valves

Understanding Your Warranty

Typical New Home Warranty Coverage

Most Douglas County builders offer tiered warranties:

• Year 1 - Workmanship: Covers defects in materials and workmanship, including plumbing issues
• Year 2 - Systems: Covers mechanical systems including plumbing, electrical, HVAC
• Year 10 - Structural: Covers major structural defects (rarely includes plumbing)

What Is Covered vs Not Covered

Usually covered:

• Leaking pipes and fixtures
• Improperly installed water heater
• Drain line defects
• Missing or improper components
• Code violations

Usually NOT covered:

• Normal wear and tear
• Homeowner-caused damage
• Cosmetic issues (scratches, discoloration)
• Problems from improper use
• Hard water damage (considered environmental)

Critical Warranty Deadlines

• 11 months: Schedule comprehensive plumbing inspection
• 12 months: Submit all workmanship warranty claims before this date
• 23 months: Final inspection for systems warranty items
• 24 months: Submit all mechanical/plumbing systems claims

Documenting Issues for Warranty Claims

Proper documentation increases your chances of successful warranty claims:

1. Photograph everything: Take clear photos of defects with date stamps
2. Video is better: Record leaks, drips, and drain issues in action
3. Written description: Note what, where, when, and impact
4. Professional report: A plumber's inspection report carries more weight
5. Submit in writing: Email creates a paper trail (keep copies)
6. Follow up: Document all communications with the builder

New Communities with Common Issues

Sterling Ranch

As a newer master-planned community with rapid construction, Sterling Ranch homes often show:

• Water heater altitude adjustment issues
• Settling-related drain problems
• Builder-grade fixture quality issues
• Irrigation system defects

Crystal Valley Ranch (Castle Rock)

Similar rapid development has led to:

• Inconsistent water pressure
• PEX connection quality variance by builder
• Tankless water heater venting issues

Terrain (Castle Rock)

Newer construction with mixed issues including:

• Garbage disposal installation problems
• Shower valve defects
• Under-sized water heaters in larger homes

Meridian Village (Parker)

Growing community with documented:

• Drain slope issues from settling
• Outdoor faucet freeze protection gaps
• Sump pump installation defects

When to Hire a Professional

Consider a professional plumbing inspection when:

• Approaching your 11-month warranty deadline
• You notice any plumbing issues (better to document professionally)
• Before your 2-year systems warranty expires
• If the builder disputes your findings

A professional inspection costs $150-$300 but can save thousands by catching defects under warranty.

Frequently Asked Questions

Should I get a plumbing inspection on a new construction home?

Yes, absolutely. New construction homes often have plumbing defects despite passing building inspections. Common issues include improper PEX connections, debris in lines, incorrectly installed water heaters, and slow drains from construction settling. A professional inspection before your 1-year warranty expires can identify problems the builder must fix.

What plumbing problems are common in new Douglas County homes?

Common new construction plumbing issues in Sterling Ranch, Crystal Valley Ranch, and other new Douglas County communities include: loose PEX connections, construction debris in drain lines, improperly adjusted water heaters for altitude, missing water heater straps, low water pressure from crimped lines, and garbage disposals wired incorrectly.

How long is the plumbing warranty on a new home in Colorado?

Most Colorado builders offer a 1-year workmanship warranty covering plumbing defects, plus a 2-year systems warranty covering mechanical systems including plumbing. Some builders offer 10-year structural warranties but these rarely cover plumbing. Review your warranty documents carefully and document all issues before expiration.

When should I schedule a plumbing inspection on my new home?

Schedule a professional plumbing inspection at 10-11 months after closing, just before your 1-year warranty expires. This gives you time to document issues and submit warranty claims. Also inspect before your 2-year mechanical warranty expires. Many Sterling Ranch and Crystal Valley homeowners wish they had done this.

Will my home inspector catch plumbing problems?

Standard home inspectors check basic plumbing function but are not plumbing specialists. They may miss improper connections behind walls, undersized water heaters, altitude adjustment issues, and developing problems. A plumber inspection focuses specifically on plumbing systems and catches issues generalists miss.