Radiator replacement costs a national average of $1,500 with an average range of $1,000 to $3,500 fully installed, per Fixr’s data.1 Other published figures differ: HomeGuide puts the national average at $1,000 per unit installed with an average range of $700 to $1,300, and Bob Vila gives a typical range of $100 to $2,500 at the same $1,500 average — published figures that differ and are not reconciled by the sources.2,3 Figures below are the latest published national figures* from each source.
*National figures, not local quotes. HomeAdvisor was updated June 19, 2026; Fixr was updated January 31, 2025; Bob Vila was updated February 2, 2024; HomeGuide was updated September 1, 2023. Your price depends on heat source, radiator size and style, labor, and whether pipe or valve work is needed.
$1,500
national average (Fixr)
$1,000 – $3,500
average range (Fixr)
$1,000
per unit installed (HomeGuide)
$700 – $1,300
average range (HomeGuide)
What sources say
| Source | Figure | Scope |
|---|---|---|
| Fixr | $1,500 national average; $1,000 – $3,500 average range; $500 low, $8,600 high (whole-house steam) | Radiator replacement guide (updated January 31, 2025) |
| HomeGuide | $1,000 national average per unit installed; $700 – $1,300 average range; $300 minimum | Radiator replacement guide (updated September 1, 2023) |
| Bob Vila | $100 – $2,500 typical range at a $1,500 average, attributed to Angi | Radiator replacement cost guide (updated February 2, 2024) |
| HomeAdvisor | Repairs $100 – $500 (average $350); replacement $250 – $2,500 per unit | Radiator repair guide with replacement figures (updated June 19, 2026) |
Bob Vila attributes its headline range and average to Angi, but its heat-source prices and BTU/watt sizing tables match Fixr’s figures exactly, with no attribution to Fixr; HomeGuide’s installed steam-radiator range of $300 to $2,500 also matches Fixr’s unit range exactly — matching figures across pages, which alone don’t establish independent corroboration.1,2,3
Cost by heat source
| Heat source | Fixr | Installed (HomeGuide) |
|---|---|---|
| Electric | $200 – $1,500 | $300 – $1,600 |
| Hot water / hydronic | $100 – $1,000 | $350 – $1,700 |
| Steam | $300 – $2,500 | $300 – $2,500 |
Bob Vila, whose figures match Fixr’s, labels them materials-only, and Fixr prices labor separately, while HomeGuide’s figures include labor, so the ranges are not directly comparable; HomeAdvisor’s $250 to $2,500 replacement range spans all types per unit.1,3,4 HomeGuide prices the unit alone at $150 to $1,000 across types, plus $200 to $800 labor.3
Cost by size
Plumbed radiators are sized in BTUs and electric units in watts. Fixr and Bob Vila publish identical sizing tables: a 3,000 BTU plumbed radiator costs $200 to $500, scaling to $600 to $1,200 at 12,000 BTUs; a 400-watt electric unit costs $100 to $500, scaling to $900 to $1,500 at 1,000 watts (materials only, labor extra).1,2 HomeGuide’s unit-only table prices hydronic or steam radiators at $180 to $670 under 2,000 BTUs up to $400 to $1,200 at 10,000 to 12,000+ BTUs, and electric units at $100 to $600 for 400 to 600 watts up to $500 to $1,500 above 1,000 watts — figures that differ from Fixr’s bands and are not reconciled.3
Cost by style
Style affects price too. HomeGuide prices units at $100 to $1,200 for baseboard, $500 to $1,200 for column, $100 to $450 for single panel, and $250 to $1,400 for towel radiators, with installed costs running higher.3 Fixr’s style table shows similar shapes: plumbed column radiators at $200 to $1,000 and freestanding units at $200 to $500, with electric variants priced separately.1
Labor
Fixr estimates plumbed radiator replacement at three to four hours at roughly $200 an hour, or $600 to $800 in labor, and electric units at two to three hours at $100 to $150 an hour, or $200 to $450.1 HomeGuide puts labor at $200 to $800 depending on unit type and retrofitting, with plumbers at $45 to $150 per hour and HVAC specialists at $75 to $150 per hour.3 HomeAdvisor cites plumbers at $45 to $200 per hour.4 The hourly-rate figures differ by source and are not reconciled.
Whole-house replacement and add-ons
Replacing 10 to 15 radiators in a house costs $7,000 to $15,000, and 3 to 5 apartment radiators run $2,100 to $5,000 (HomeGuide); HomeGuide advises replacing all radiators in a central system at once to save on labor.3 Fixr’s high-end project, replacing all steam radiators in a house at once, reaches $8,600.1 Water-based retrofits can add a radiator valve replacement at $100 to $350 and pipe replacement at $200 to $700 (HomeGuide), and a boiler replacement itself runs $2,200 to $7,000.3
Repair versus replace
Repairs are far cheaper than replacement: HomeAdvisor puts most radiator repairs at $100 to $500 with a $350 average, plus a $100 to $200 inspection fee, with steam repairs at $175 to $600, hot water at $150 to $500, and electric at $125 to $450 by type.4
Related guides
Radiator Repair Cost
Baseboard Heater Installation Cost
Boiler Repair Cost
HVAC Installation Cost
All cost guides
Sources
1. Fixr — Cost to Replace Radiators (updated January 31, 2025)
2. Bob Vila — How Much Does Home Radiator Replacement Cost? (updated February 2, 2024)
3. HomeGuide — Home Radiator Replacement Cost (updated September 1, 2023)
4. HomeAdvisor — How Much Does It Cost to Repair a Radiator? (updated June 19, 2026)