Energy & Efficiency

Solar payback, energy audits, weatherstripping, and efficiency upgrades.

Calculators

(2)

Energy Savings Calculator

Calculate ROI and payback period for energy efficiency upgrades

Solar Panel Calculator

Solar estimate by ZIP and monthly bill: system size, panels, installed vs DIY cost, payback and 25-year savings

Cheat Sheets

(2)

Home Energy Savings Audit

Complete guide to identifying energy waste and reducing power bills through efficiency improvements

Weatherstripping & Air Sealing Guide

Weatherstrip types by application, door sweeps, foam sealants, and priority sealing locations

Explore other topics

Painting & Finishes Flooring & Tile Drywall & Insulation Framing & Carpentry Trim, Molding & Cabinets Concrete & Masonry Decks, Fences & Patios Roofing & Gutters Electrical Plumbing HVAC & Climate Landscaping & Outdoor Tools & Workshop Doors & Windows Home Maintenance & Safety Smart Home & Low-Voltage Appliances & Fixtures

Use this on a project

Insulate the attic

Start a project

What are you building?

Pick one for a step-by-step plan with tools, materials and costs, or tell us in your own words.