Toilet Fill Valve Replacement Cost Guide for 2026

Understanding the Cost of Replacing a Toilet Fill Valve in 2026

For construction professionals, knowing the precise cost of replacing a toilet fill valve is crucial for accurate project estimation. In 2026, the cost ranges from $60–$150, depending on various factors such as material quality and labor rates. This guide provides a detailed breakdown to help you plan effectively.

Current Cost Breakdown

• Basic plastic valve swap: $10–$30 for the part, $80–$120 labor
• High-performance quiet-fill assembly: $35–$90 for the part, $100–$250 labor
• Urgent same-day service or night callout: add 20%–40% to labor cost

Key Cost Drivers

• Valve Quality and Brand Rating – Premium models cost more but reduce future call-backs.
• Access Conditions – Tight spaces or corroded bolts increase labor time.
• Plumber Expertise – Licensed pros charge higher rates but offer efficiency.
• Geographic Labor Index – Metro areas may have higher labor costs.
• Job Minimums – Many contractors have a one-hour minimum charge.

Material Costs

• Standard adjustable fill valve: $10–$30
• Anti-syphon code-compliant valve: $10–$30
• Premium brass shank valve: $35–$90
• New supply line (optional): $10–$30
• Wax ring if tank removal required: $10–$30

Labor Calculation

Typical labor tasks include:

• Isolate water, drain tank, remove old valve – 0.3 hr
• Fit new valve, adjust float, leak test – 0.4 hr
• Replace supply line (if requested) – 0.1 hr
• Clean up, dispose, client walk-through – 0.2 hr

Total standard labor time: 1.0 hr. Multiply by your local plumber rate for a complete estimate.

DIY vs. Professional Replacement

While some may opt for DIY, professional installation ensures reliability and includes warranties. Average professional cost: $125–$250 total.

Importance of Accurate Estimating

Accurate estimates prevent unexpected costs and maintain client trust. Utilize tools like CountBricks for precise, real-time estimates.

Hidden Costs to Consider

• Water shut-off replacement
• Calcium build-up cleaning
• Out-of-code supply lines
• Multi-piece toilets requiring tank removal

Why Choose Professional Estimation Tools

For construction professionals, leveraging advanced estimation tools ensures project success. Benefits include:

• Detailed project planning and timeline management
• Skilled craftsmanship with attention to detail
• Ongoing support throughout the construction process
• Quality assurance and safety protocols
• Transparent communication and progress updates

Explore more at CountBricks.com to enhance your construction projects with precision and efficiency.