Why this site exists
Plenty of “cost calculators” online show you a number only after you hand over your email and phone. We built Home Cost Guide the other way around: the real number and the math behind it are free to see, with nothing to fill out first.
Every estimate on this site is generated by a single, open cost model. When we say a conventional septic system runs a certain amount, the calculator, the prose, and the structured data all read from the same source — so they can never quietly disagree.
What we cover today
Our first wave of guides covers six services across three categories:
- Septic System cost — Septic
- Water Well Drilling cost — Wells & Drainage
- French Drain cost — Wells & Drainage
- Sump Pump cost — Wells & Drainage
- Garage Door Installation cost — Garage Doors
- Garage Door Spring Repair cost — Garage Doors
- Roof Replacement cost — Roofing
- HVAC Replacement cost — Heating & Cooling
- Water Heater Replacement cost — Water Heaters
- Window Replacement cost — Windows
- Driveway Installation cost — Driveways
- Deck Building cost — Decks
- Fence Installation cost — Fencing
- Siding Replacement cost — Siding
- Foundation Repair cost — Foundation
- Gutter Installation cost — Gutters
- Electrical Panel Upgrade cost — Electrical
- Whole-House Generator cost — Generators
- Sewer Line Replacement cost — Sewer & Plumbing
- Retaining Wall cost — Retaining Walls
We are expanding state coverage and adding categories over time. Read exactly how the numbers are built on our methodology page.
How we make money
Home Cost Guide is free to use. We support the site with clearly labeled display advertising. We do not sell your personal information, and our cost estimates are never influenced by advertisers. See our Privacy Policy for how advertising cookies work.
A note on accuracy
Our estimates are budgeting ranges built from published contractor pricing and public wage data, not binding quotes. Local conditions, materials, and individual contractors vary. Always confirm the final price with a licensed local professional before you commit.
Questions or a correction? Contact us — we take accuracy seriously and update the model when the market moves.