French Drain Cost in 2026: $10 to $100 a Foot, and Two Averages 1.85x Apart
French drain costs run $10 to $100 per linear foot in 2026. We compare the conflicting sources, the outlet costs, and the unsettled pipe debate.
Ali Raza
Home Addition Cost in 2026: Why the Published Numbers Disagree by 7.5x
Home addition costs run $80 to $600 per square foot depending on who you ask. We compare the conflicting 2026 sources instead of averaging them.
Heat Pump vs Furnace Cost in 2026: The Answer Changes at State Lines
The $2,000 federal credit ended for anything installed in 2026. And whether a heat pump beats gas on running cost flips by state — it wins in Texas, loses in Michigan, and loses in New York and California too. Here is how to work out your own break-even.
Retaining Wall Cost in 2026: The Two Numbers Everyone Measures Wrong
A retaining wall runs $25 to $60 per square foot of face, around $6,000 typical. But the permit height is measured from the bottom of the footing, not what you can see — and comparing quotes per linear foot compares nothing at all.
Crawl Space Encapsulation Cost in 2026: Why Bids Vary Fivefold
Encapsulation runs $3,000 to $15,000, or $2 to $10 a square foot. The spread is not contractors chancing it — the word describes three different jobs. Here is how to price each, and which claims do not survive checking.
Whole-House Generator Cost in 2026: Real Numbers, and the Tax Credit That Ended
A 24kW standby generator installed runs $9,600 to $14,300 — well above the averages you will see quoted. Here is the real hardware pricing, the natural gas derate nobody mentions, and why the federal battery credit no longer applies.
Sewer Line Replacement Cost in 2026: And the Question That Decides What You Pay
A full sewer lateral replacement runs $4,000 to $12,000, at $50 to $250 a foot. But in many US cities you own the pipe under the public street. Here is how to find out, and what to refuse.
Mold Remediation Cost in 2026: What It Really Costs, and What to Refuse
Mold remediation runs $10 to $30 per square foot of affected area, or $1,200 to $6,000 for most homes. Here is what drives the number, why three of the sites you checked are the same source, and the five upsells to refuse.
Tree Removal Cost in 2026: The $500 Insurance Cap Nobody Mentions
Tree removal averages $750–$850, but insurance often caps debris removal at $500 per tree. Plus the permit that costs $60 and the fine that costs $30,000.
Basement Waterproofing Cost in 2026: Your Basement Was Never Waterproofed
Estimates run from $5,239 to $13,640 for the same job. Under IRC R406 most basements were only damp-proofed — and regrading at $1,000–$5,000 addresses the same water as $18,000 of waterproofing.