Remodeling Estimating Guide
How to Estimate Remodeling Jobs
Remodeling estimates are complex because every job is different. Unknown conditions, scope changes, and selection delays can destroy profits if not managed properly. This guide covers systematic approaches to remodeling pricing.
Quick Answer
Remodeling uses detailed line-item estimates: labor + materials + subs + allowances + contingency (10-15%), then add overhead (35-50%) and profit (15-25%). Kitchen remodels run $150-$400/sq ft, bathrooms $200-$500/sq ft. Use allowances for unselected items and change orders for scope creep.
Remodeling Price Ranges
| Project Type | Budget Range | Mid-Range | High-End |
|---|---|---|---|
| Kitchen remodel | $25,000-$50,000 | $50,000-$100,000 | $100,000-$200,000+ |
| Bathroom remodel | $10,000-$20,000 | $20,000-$40,000 | $40,000-$75,000+ |
| Basement finish | $30,000-$50,000 | $50,000-$80,000 | $80,000-$150,000+ |
| Addition (per sq ft) | $200-$300 | $300-$450 | $450-$600+ |
| Whole-house remodel | $100-$175/sf | $175-$275/sf | $275-$400+/sf |
The Line-Item Estimate
Remodeling requires detailed line-item breakdowns. Categories to include:
1. Demolition and Prep
- Demo labor (hours × rate)
- Dumpster rental and disposal
- Dust barriers and protection
- Permit fees
2. Structural/Framing
- Framing labor and materials
- Headers, beams, posts
- Subfloor repair/replacement
- Structural engineer (if needed)
3. Trade Rough-Ins
- Plumbing rough (labor + materials)
- Electrical rough (labor + materials)
- HVAC modifications
4. Insulation and Drywall
- Insulation (type and R-value)
- Drywall hang, tape, finish
- Texture matching (if needed)
5. Finishes
- Flooring (material + install)
- Paint/wall finishes
- Tile (material + install)
- Trim and millwork
- Cabinets and countertops
- Fixtures and hardware
6. Trade Finish Work
- Plumbing trim-out
- Electrical trim-out
- Appliance installation
Use Allowances Wisely
For items not yet selected (light fixtures, tile, countertops), use allowances with clear specs. “Countertop allowance: $80/sf installed, quartz” tells customers exactly what they get for the allowance and what upgrades cost.
Calculating Labor
Production rates for common remodeling tasks:
| Task | Production Rate | Notes |
|---|---|---|
| Demo (interior) | 200-400 sf/day/person | Depends on complexity |
| Framing (walls) | 50-100 LF/day/carpenter | Standard interior walls |
| Drywall hang | 500-800 sf/day/person | Walls easier than ceilings |
| Drywall finish (Level 4) | 400-600 sf/day/person | Includes 3 coats + sand |
| Painting (walls) | 300-500 sf/day/painter | 2 coats, cut and roll |
| Tile (floor) | 75-150 sf/day/setter | Standard layout |
| Tile (shower walls) | 40-80 sf/day/setter | More cuts and details |
| Trim install | 150-250 LF/day/carpenter | Base, case, crown |
| Cabinet install | 4-8 cabinets/day | 2-person crew typical |
The Remodeling Bid Formula
Remodeling Estimate Formula
Bid = (Labor + Materials + Subs + Allowances) × (1 + Contingency) × (1 + Overhead) ÷ (1 – Profit)
Example: Bathroom Remodel
- Demo: $800
- Framing/backing: $400
- Plumbing rough + finish: $2,800
- Electrical: $1,200
- Drywall: $1,100
- Tile (shower): $3,500
- Flooring: $1,200
- Paint: $600
- Vanity + top: $1,800 (allowance)
- Toilet: $400
- Shower fixtures: $800 (allowance)
- Accessories/hardware: $300
- Permit: $200
- Direct costs: $15,100
- 10% contingency: $1,510
- With 40% overhead: $16,610 × 1.40 = $23,254
- For 20% profit: $23,254 ÷ 0.80 = $29,068 bid
Managing Scope and Changes
Change Order Everything
Scope creep kills remodeling profits. Any work beyond original scope requires a written change order with price, signed before work begins. “While you’re here, can you also…” costs money. Train customers to expect change orders.
Common Profit Killers
- Unwritten scope: “I assumed you’d paint that too”
- Selection delays: Waiting for tile choices while crew sits idle
- Hidden conditions: Rot, mold, non-code work behind walls
- Allowance overages: Customer upgrades without price adjustment
- Punch list creep: Never-ending “one more thing” requests
Contingency Guidelines
| Project Type | Recommended Contingency |
|---|---|
| Newer home (< 20 years), defined scope | 5-8% |
| Typical remodel, average conditions | 10-12% |
| Older home (> 50 years) | 15-20% |
| Historic or complex renovation | 20-25% |
Contingency protects you from surprises. If unused, it becomes additional profit or can be credited to customer for goodwill.
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