Understanding Bathroom Remodeling Costs in Dallas

The Cost of Remodeling a 1970s/1980s Bathroom

A typical bathroom from the 1970s or 1980s often measures 5' × 8', featuring a 60" alcove tub. Remodeling this space can vary significantly in cost. The price difference usually stems from three main factors:

1. Scope of Work: Are you doing a simple tub-to-shower conversion or a full custom rebuild?

2. Waterproofing and Tile Complexity: The shower area is typically the most expensive part.

3. Hidden Conditions: Older bathrooms often have plumbing, subfloor, rot, or ventilation issues that can add to the cost.

   
   

Let’s break down how to estimate these costs using standard measures and real price anchors, comparing midrange options with high-end custom choices.

Step 1: Define the Scope of Your Project

Option A — Tub-to-Shower Conversion

This option involves replacing the tub with a shower base and walls (either prefab or tiled), installing a new valve and trim, and adding a glass door. If your vanity, toilet, and floor are in good condition, you can keep them.

According to Home Depot’s cost guide, tub-to-shower conversions typically range from $8,000 to $12,000, including materials and labor. Other national guides may show a wider range based on finish levels and plumbing changes.

Option B — Full Bathroom Gut

This is the most common choice for outdated bathrooms. It involves demolishing the space down to the studs (or near-studs), correctly rebuilding the shower, and installing a new floor, vanity, toilet, lighting, paint, and accessories.

For a reality check, the 2025 Cost vs. Value Report lists the national average for a midrange full bathroom remodel at $26,138.

Step 2: Use Standard Measurements for Consistency

Assuming a typical layout, here’s how to measure:

• Bathroom Floor: 5' × 8' = 40 sq ft

• Shower Alcove: 60" × 32" (common modern base)

• Shower Wall Height: 8' (adjust if tiling higher)

  
  

Measuring Tile Surface Area

Shower Wall Tile Area:

• Perimeter of three walls × height

• Back wall: 60" = 5.0 ft

• Two side walls: 32" each = 2.67 ft + 2.67 ft

• Total perimeter (3 walls): 12.67 ft

• Wall tile area: 12.67 × 8 = ~101 sq ft

  
  

Shower Floor:

• 60" × 32" = 5.0 ft × 2.67 ft = ~13 sq ft

  
  

Bathroom Floor Tile:

• 40 sq ft

  
  

Total Tiled Area:

• 101 + 13 + 40 = ~154 sq ft

• Add waste (cuts/breakage): +10% → ~170 sq ft

  
  

This tile area is crucial for making your estimate predictable.

Step 3: Price the Core Package

Midrange Material Price Anchors

Here are some typical examples to help you estimate:

• Porcelain Tile (12×24): ~$1.69–$2.59 / sq ft

• Waterproof Shower Kit (32"×60"): ~$519

• Linear-Drain Foam Tray Kit (36"×72"): ~$354

• Frameless Shower Door (60"): ~$729–$889

• 36" Vanity with Top: ~$429

• Elongated Chair-Height Toilet: ~$199–$279

• Bath Fan (80 CFM): ~$72

• Wet-Rated LED Recessed Lights (8-pack): ~$136

  
  

High-End Custom Material Anchors

Premium materials can significantly increase costs:

• Premium Tile: ~$8–$14 / sq ft

• Premium Valve/Trim Systems: Often start at $200+

• Ultra-Luxury Toilets: Prices vary widely by model.

• Custom Glass: Can run up to $5,000 depending on configuration.

  
  

Step 4: Convert Materials into a Real Remodel Budget

In most bathrooms, labor and overhead often outweigh materials, especially for:

• Tile work (layout, waterproofing, slope, cuts)

• Plumbing changes (drain/vent/valve)

• Correcting hidden damage

  
  

Budget Ranges for Turnkey Projects

Use these as planning brackets, not promises. Your final number will depend on what’s behind the walls and how custom your shower is.

1. Basic Tub-to-Shower Conversion: $8,000–$12,000

2. Midrange Full Remodel: ~$18,000–$35,000

3. High-End Custom: ~$40,000–$90,000+

   
   

Understanding the Math Behind Your Estimate

Start with Base Scope

• Conversion Only: Start from a conversion baseline.

• Full Gut: Begin with a midrange full remodel benchmark and adjust.

  
  

Add Your Shower System Choice

• Prefab Surround: Lower labor, fewer failure points if installed correctly.

• Tiled Shower: Higher labor and waterproofing materials; this is where bad installs fail.

  
  

Price Tile by Square Foot

Using the measured area of ~170 sq ft tile with waste:

• Midrange Tile: ~$2/sq ft → a few hundred dollars

• High-End Tile: ~$10–$14/sq ft → well over $1,500–$2,000+

  
  

Add a Contingency for Older Bathrooms

For 1970s/1980s bathrooms, carry a 10–20% contingency for:

• Subfloor rot at the tub/shower edge

• Outdated venting

• Drain/vent corrections

• Water damage in framing

• Surprises when you open the wall

  
  

Common Budget Busters in 1970s/1980s Bathrooms

1. Drain Work: Converting a tub setup to a shower can trigger drain sizing, slope, and vent corrections.

2. Waterproofing Rebuild: If the old surround was compromised, you’ll need to rebuild properly.

3. Subfloor Repair: Common issues at the tub edge and around toilets.

4. Electrical and Ventilation: Adding proper fan/lighting/GFCI can add real costs.

5. Glass: Custom frameless enclosures can get expensive quickly.

   
   

A Practical Takeaway

If you want a clean, modern shower that lasts, don’t skimp on waterproofing or installation quality. Instead, save money by simplifying design choices, such as tile selections and patterns.

If you’d like, share:

• Your bathroom size (or confirm 5' × 8')

• Ceiling height

• Desired shower size (60" × 32", 60" × 36", etc.)

• Whether you’re keeping the vanity, toilet, and floor

  
  

I’ll generate a tighter line-item estimate in three tiers (midrange big-box style to high-end custom) using the same measurement method above.

For more information on remodeling, check out this link.