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Build It Right.
Every Trade.
Every Project.

Expert guides, cost calculators, and vetted contractor quotes across 20+ home improvement trades — from HVAC to hardwood floors.

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Free Calculators
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Every Trade. One Source.

Browse expert content organized by trade. Each category includes buying guides, cost comparisons, how-to tutorials, and contractor recommendations.

Cost Calculators

Estimate your project cost before you start. Our calculators use real contractor pricing data from your region.

Room Paint
Cost Calculator

Get an instant estimate for your next painting project. Enter your room dimensions and we'll calculate exactly how much paint you need and what it'll cost — including primer and supplies.

  • Accounts for doors & windows automatically
  • Includes primer coat calculation
  • Real-time pricing from Home Depot
  • Covers 2-coat application standard
  • Factors in 10% waste for trim & edges
🎨

Paint Cost Estimator

Shop Paint at Home Depot →

Video Guides

Quick, practical walkthroughs from experienced contractors and DIY professionals.

12:34
HVAC

How to Size an AC Unit for Your Home (Don't Get Ripped Off)

8:47
Flooring

LVP Installation Start to Finish: A Complete Beginner's Guide

15:22
Kitchen

Kitchen Remodel on a Budget: $15K Total Transformation

How It Works

1

Find Your Project

Browse 20 trade categories or search for your specific home improvement project. From HVAC to fencing, we've got you covered.

2

Get Expert Guides

Read in-depth buying guides, cost breakdowns, and step-by-step tutorials written by industry professionals.

3

Connect with Pros

Get up to 3 free quotes from verified, licensed contractors in your area. Compare and hire with confidence.

Trusted by 100,000+ Homeowners

Real reviews from real people who used HomeAuthority to plan, budget, and complete their projects.

★★★★★

The HVAC calculator saved me from getting overcharged. My contractor quoted $12K but HomeAuthority showed the fair price was $8,200. I got two more quotes and saved $3,400.

MR
Mike Rodriguez

Austin, TX — HVAC Replacement

★★★★★

I used the kitchen remodel guide to plan everything myself. The material recommendations and contractor matching saved us at least $5K on our renovation. Incredible resource.

SJ
Sarah Johnson

Denver, CO — Kitchen Remodel

★★★★★

As a first-time homeowner, I was clueless about roofing. HomeAuthority's guide walked me through every material option and the true costs. Got 3 quotes and picked the best one.

DL
David Lee

Portland, OR — Roof Replacement

Get 3 Free Quotes from Local Contractors

Tell us about your project and we'll match you with up to 3 licensed, insured contractors in your area. No obligation, no pressure — just real quotes from real pros.

  • Pre-screened, licensed & insured contractors
  • Compare up to 3 competitive quotes
  • 100% free — no commitment required
  • Average savings of 23% vs. single-bid projects
  • Read verified reviews from real homeowners

Start Your Free Quote

257
Expert Guides
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Trade Categories
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