Window & Door ROI Calculator

Calculate energy savings and payback period from window and door replacement

Window & Door ROI Calculator

Calculate savings and payback period for window and door replacement

Current Setup

Planned Upgrade

Understanding U-Values & Energy Efficiency

Lower U-values mean better insulation and less heat loss through windows and doors

Poor

U > 3.0

Old single glazed windows, uninsulated doors - high heat loss

Fair

U: 2.0-3.0

Standard double glazed windows, basic insulated doors

Good

U: 1.0-2.0

Low-E coated windows, well-insulated doors

Excellent

U < 1.0

Triple glazed windows, passive house standard

Smart Investment Tips

Maximize your return on investment with these professional recommendations

Timing Matters

Replace during renovations or when existing windows/doors need repair anyway

Prioritize Impact

Focus on north-facing windows and entrance doors for maximum energy savings

Check Incentives

Many regions offer rebates for energy-efficient windows and doors

  1. 1

    Inventoriez fenĂȘtres/portes

    Comptez total fenĂȘtres et portes par type: simple vitrage, double vitrage, triple vitrage. Notez dimension chacune (largeur × hauteur). Orientation (nord/sud/est/ouest) affecte gain/perte chaleur.

  2. 2

    Entrez valeurs U

    Valeur U mesure perte chaleur - bas mieux. Typique: simple vitrage 5.0, double standard 2.8, double low-E 1.7, triple 1.0. VĂ©rifier Ă©tiquette NFRC fenĂȘtre ou utiliser valeur par dĂ©faut type.

  3. 3

    Calculez perte chaleur actuelle

    Calculatrice estime perte chaleur fenĂȘtres/portes basĂ© valeur U, superficie, diffĂ©rence tempĂ©rature. Typiquement 25-35% chaleur maison s'Ă©chappe fenĂȘtres/portes. FenĂȘtres nord/ouest perdent plus.

  4. 4

    Évaluez options remplacement

    Comparez valeurs U diffĂ©rents types: double standard (U-2.8), double low-E (U-1.7), triple (U-1.0). Chaque amĂ©lioration rĂ©duit perte chaleur. Saisir coĂ»ts nouveaux estimĂ©s (~300-800€ par fenĂȘtre installĂ©e).

  5. 5

    Analysez Ă©conomies Ă©nergie

    Calculatrice montre Ă©conomies annuelles kWh/$ chaque option mise niveau. Typique: simple Ă  double Ă©conomise 40-50%, double Ă  triple Ă©conomise 20-30%. Économies plus grandes climats froids.

  6. 6

    Calculez retour investissement

    Examinez pĂ©riode rĂ©cupĂ©ration chaque option. Simple Ă  double: 10-15 ans. Double Ă  triple: 20-30 ans. PrioritĂ© pires fenĂȘtres (simple vitrage, orientĂ©es nord) ROI rapide. ConsidĂ©rer incitations/crĂ©dits impĂŽt.

  7. 7

    Planifiez remplacement

    Commencer fenĂȘtres simple vitrage (Ă©conomies maximales). Ensuite orientĂ©es nord (plus froides), puis grandes fenĂȘtres (plus perte). Installer automne/printemps mĂ©tĂ©o modĂ©rĂ©e. Obtenir 3+ devis installateurs certifiĂ©s.

Pro Tip: Use Ctrl+Enter to calculate quickly, or Ctrl+R to reset the form.

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