Planning calculators
Home Project Cost Calculators for Contractor Quote Review
Use source-benchmarked cost calculators for roofing, water heaters, fences, painting, flooring, windows, HVAC, decks, remodels, mini splits, basements, garage doors, and driveways. Build a planning estimate, then compare scope, materials, labor, red flags, and assumptions with the contractor quote in front of you.
Quote review packet
Before-signing checklist
- 01 Build a rough rangeEstimate
- 02 Check scope and line itemsAudit
- 03 Compare assumptionsNormalize
- 04 Ask better questionsClarify
Results stay educational and client-side. No login, no lead form, no guaranteed price.
Visual guide
How to use a calculator with a contractor quote
Start with the calculator closest to your project, then use the factor stack to compare the written quote against the assumptions driving the planning range.
Built around written contractor quotes
Find a planning estimate before you sign
Each calculator is designed for contractor quote review, not exact pricing. Use the low, typical, and high ranges to ask better questions about line items, cleanup, permits, warranties, material tiers, labor difficulty, and change-order risk.
Exterior projects
Use these calculators when a contractor quote includes outdoor scope, access, demolition, disposal, weather exposure, or code/permit assumptions.
roofing square (100 sq ft)
Roof Replacement Cost Calculator
Build a rough planning range for replacing a roof and checking whether a roofing quote explains tear-off, underlayment, flashing, ventilation, disposal, and warranty assumptions. Check planning costs, quote scope, materials, labor factors, and red flags.
Open calculator
square foot of siding
Siding Replacement Cost Calculator
Estimate siding replacement as a planning range and check whether a contractor quote covers removal, house wrap, flashing, trim, repairs, permits, cleanup, and warranty. Check planning costs, quote scope, materials, labor factors, and red flags.
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linear foot
Fence Installation Cost Calculator
Create a planning range for fence installation and review whether a quote covers posts, gates, layout, demolition, haul-away, terrain, and materials. Check planning costs, quote scope, materials, labor factors, and red flags.
Open calculator
square foot
Deck Building Cost Calculator
Plan deck-building ranges and check whether framing, footings, railing, stairs, decking, permits, demolition, and code assumptions are included. Check planning costs, quote scope, materials, labor factors, and red flags.
Open calculator
square foot
Driveway Replacement Cost Calculator
Plan a driveway replacement range and review demolition, base prep, drainage, thickness, reinforcement, disposal, permits, and curing assumptions. Check planning costs, quote scope, materials, labor factors, and red flags.
Open calculator
door
Garage Door Replacement Cost Calculator
Estimate garage door replacement and check whether door type, opener, tracks, springs, haul-away, trim, insulation, and warranty are specified. Check planning costs, quote scope, materials, labor factors, and red flags.
Open calculator
Home systems
Review equipment, model numbers, sizing assumptions, electrical or plumbing work, startup, and warranty terms before comparing price alone.
heater
Water Heater Replacement Cost Calculator
Estimate a planning range for water heater replacement and check if the quote covers haul-away, code updates, expansion tank, pans, venting, and warranty. Check planning costs, quote scope, materials, labor factors, and red flags.
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system
HVAC Replacement Cost Calculator
Estimate HVAC replacement as a planning range and review whether equipment, sizing, ductwork, electrical, permits, startup, and warranty are clear. Check planning costs, quote scope, materials, labor factors, and red flags.
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zone
Mini Split Installation Cost Calculator
Estimate a planning range for mini split installation and check whether equipment, line sets, electrical, mounting, condensate, permits, and startup are included. Check planning costs, quote scope, materials, labor factors, and red flags.
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attic square foot
Attic Insulation Cost Calculator
Build a planning range for attic insulation and review whether a quote includes air sealing, insulation type, R-value target, old insulation handling, fixture dams, ventilation, and cleanup. Check planning costs, quote scope, materials, labor factors, and red flags.
Open calculator
Interior surfaces
Compare material tier, prep level, trim, transitions, repairs, waste factor, coats, cleanup, and excluded work.
square foot
House Painting Cost Calculator
Estimate interior or exterior painting as a planning range and check whether prep, coats, repairs, paint line, protection, and cleanup are defined. Check planning costs, quote scope, materials, labor factors, and red flags.
Open calculator
square foot
Flooring Installation Cost Calculator
Plan flooring installation costs and check quotes for subfloor prep, removal, transitions, trim, waste factor, and material specifications. Check planning costs, quote scope, materials, labor factors, and red flags.
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window
Window Replacement Cost Calculator
Estimate window replacement planning ranges and check whether product line, install method, trim, disposal, measurements, and warranty are included. Check planning costs, quote scope, materials, labor factors, and red flags.
Open calculator
Remodeling and finishing
Use broader planning ranges when a quote includes many trades, allowances, demolition, hidden conditions, and change-order risk.
bathroom project
Bathroom Remodel Cost Calculator
Estimate bathroom remodel planning ranges and check whether demolition, plumbing, electrical, tile, fixtures, waterproofing, permits, and allowances are clear. Check planning costs, quote scope, materials, labor factors, and red flags.
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kitchen project
Kitchen Remodel Cost Calculator
Build a planning range for kitchen remodel quotes and review cabinets, counters, appliances, electrical, plumbing, flooring, permits, and allowances. Check planning costs, quote scope, materials, labor factors, and red flags.
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square foot
Basement Finishing Cost Calculator
Build a rough planning range for finishing a basement and review framing, moisture, insulation, electrical, HVAC, bathroom, flooring, permits, and egress assumptions. Check planning costs, quote scope, materials, labor factors, and red flags.
Open calculator
No-gate worksheets
Free quote review downloads
Use these worksheets offline or alongside a written contractor estimate. They are educational planning aids, not professional advice.
Contractor quote review checklist
Line items, red flags, and follow-up questions.
Download CSV
Quote comparison worksheet
Compare scope, price, materials, timeline, and warranty.
Download CSV
Allowance review worksheet
Track allowances, product examples, overage rules, and credits.
Download CSV
Payment schedule worksheet
Review deposits, milestones, final payment, and closeout documents.
Download CSV
Change-order review checklist
Check documentation, pricing basis, schedule impact, and approvals.
Download CSV