The Fix-It Playbook — Radiators & Boilers: Bleed, Pressure, Banging Pipes

A hot-water or steam heating system runs on the same handful of homeowner-level checks every year — bleeding trapped air, reading the pressure gauge, and knowing what a banging pipe is actually telling you.

Inside: Find the bleed valve · Bleed each radiator · Reading the pressure gauge · What banging pipes are telling you · The honest cost comparison · When to stop and call a pro · Troubleshooting · Printable radiator & boiler checklist.

Doing it yourself: free — a radiator bleed key costs about $5–10 and bleeding a radiator takes a couple of minutes each.
Calling a pro: professional radiator bleeding runs $150–300 for the visit; an annual boiler service (cleaning, inspection, tune-up) runs $200–500; average boiler repair costs run $150–700. A radiator valve replacement runs $100–350 installed.

6 pages of labeled diagrams, parts lists and real numbers — no filler, no 40-minute video. Temperatures and measurements in both Fahrenheit/Celsius and feet/meters, so it works wherever you are. Ends with a printable checklist.

Instant PDF download: print it for the garage or follow it on your phone with the parts in hand. Yours to keep, no subscription.

Need more than this one job? The Heat Kit bundles all 5 furnace and heating-system guides — 25 pages — for $14.