Radiator repair costs an average of $350, within a published headline range of $100 – $500, according to Angi and HomeAdvisor.1,2 The corporate siblings publish identical headline figures, including a low end of $5 and a high end of $600; matching figures between the sibling sites alone don’t establish independent corroboration.1,2 Fixr (updated January 2025) separately reports a $350 national average, scoped to fixing a leaky radiator, within an average range of $150 – $500, a low cost of $100 to bleed a radiator, and a high cost of $600 to replace damaged radiator piping in a hard-to-access area.3 The $350 average and $600 high end appear in all three sources (separately published figures, and the pages state no shared sourcing); the published ranges differ ($100 – $500 versus $150 – $500) without explanation. Prices below are national averages*.
*National averages, not local quotes. Your price depends on the radiator type, the problem, the parts involved, and local labor rates.
$350
average repair cost (all three sources)
$100–$500
headline range (Angi/HomeAdvisor)
$150–$500
average range (Fixr)
$100–$250/hr
labor rate (all three sources)
What the sources say
| Source | Headline figures | Notes |
|---|---|---|
| Angi (2026 data, updated Oct 2026) | $350 average; headline range $100 – $500; low $5; high $600 | Corporate sibling of HomeAdvisor; headline figures identical to HomeAdvisor’s |
| HomeAdvisor (2025 data, updated Jun 2026) | $350 average; normal range $100 – $500; low $5; high $600 | Sibling-published figures identical to Angi’s; matching figures alone don’t establish independent corroboration |
| Fixr (updated Jan 2025) | $350 average (scoped to fixing a leaky radiator); average range $150 – $500; low $100; high $600 | Separately published, pages state no shared sourcing; average and high end match the sibling figures; range and low end differ without explanation |
Cost by problem or repair needed
Angi prices common repair jobs in one table, while Fixr splits them into problems and repair solutions. Seven rows match exactly across the two separately published sources (no stated shared sourcing); two rows differ without explanation.1,3
| Problem or repair | Angi (parts and labor included) | Fixr (labor included) |
|---|---|---|
| Bleeding a radiator | $100 – $200 | $100 – $200 |
| Banging noise | $100 – $200 | $100 – $200 |
| Balancing radiators | $100 – $250 | $100 – $250 |
| Insulating radiators | $150 – $300 | $150 – $300 |
| Rust removal | $150 – $300 | $125 – $275 |
| High pressure | $150 – $400 | $150 – $400 |
| Crack repair | $200 – $400 | $175 – $400 |
| Unclogging / clog | $200 – $450 | $200 – $450 |
| Leak repair | $150 – $600 | $150 – $600 |
| Not heating up | – | $125 – $350 |
| Overheating | – | $125 – $350 |
| Painting a radiator | – | $200 – $600 |
Matching rows above are separately published figures, and the pages state no shared sourcing.
Cost by part
The sources price parts work on different bases: Angi publishes a single table of replacement costs including parts and labor, while Fixr publishes separate repair and replacement tables, both including labor. Each publisher’s figures stay on its own basis:1,3
| Part | Angi (replacement, parts + labor) | Fixr (repair, labor included) | Fixr (replacement, labor included) |
|---|---|---|---|
| Air vent | $150 – $300 | – | $150 – $250 |
| Valve | $150 – $300 | $125 – $250 | $150 – $350 |
| Thermostat | $150 – $400 | $125 – $250 | $150 – $350 |
| Pipe | $200 – $600 | $150 – $300 | $175 – $600 |
The Angi and Fixr columns price different scopes (single replacement table versus split repair and replacement tables), so differing rows are not conflicts.
Cost by radiator type and material
Angi and HomeAdvisor publish identical tables for both groupings (sibling-published figures). Fixr publishes its own spans: hot water repair matches at $150 – $500 and stainless steel at $150 – $550 (separately published, no stated shared sourcing); the electric, steam, and cast iron rows differ without explanation.1,2,3
By radiator type:
| Type | Angi/HomeAdvisor | Fixr |
|---|---|---|
| Electric | $125 – $450 | $100 – $400 |
| Hot water | $150 – $500 | $150 – $500 |
| Steam | $175 – $600 | $150 – $550 |
By material:
| Material | Angi/HomeAdvisor | Fixr |
|---|---|---|
| Cast iron | $200 – $600 | $150 – $500 |
| Stainless steel | $150 – $550 | $150 – $550 |
Labor and service fees
All three sources report radiator repair labor at $100 – $250 per hour (separately published figures with no stated shared sourcing). Fixr notes that some professionals instead charge flat fees for common jobs such as replacing a valve, and reports minimum or call-out fees of $75 – $100.1,2,3 HomeAdvisor reports an inspection or base service fee of $100 – $200.2 HomeAdvisor also states that plumbers generally charge $45 – $200 per hour – a general plumber rate, rather than a radiator-specific figure, on HomeAdvisor’s presentation.2
When replacement costs more
HomeAdvisor reports that replacing a radiator can cost $250 – $2,500 per unit, and prices a full cast iron radiator replacement at $250 – $2,500.2 Angi and Fixr cover replacement pricing in separate guides. For new-unit pricing, see our guide to radiator installation cost.
Related projects
See our guides to radiator installation, boiler repair, furnace repair, and HVAC repair for those projects.
Frequently asked questions
How much does radiator repair cost?
Angi and HomeAdvisor publish an average of $350 and a headline range of $100 – $500. Fixr separately reports an average range of $150 – $500, with a $350 national average scoped to fixing a leaky radiator.1,2,3
How much does it cost to fix a leaking radiator?
Angi reports $150 – $600 for leak repair, and Fixr reports the same $150 – $600 range (separately published figures with no stated shared sourcing). Fixr’s $350 national average is scoped to fixing a leaky radiator.1,3
How much do plumbers charge to repair a radiator?
All three sources report radiator repair labor at $100 – $250 per hour. HomeAdvisor also reports an inspection or base service fee of $100 – $200; Fixr reports minimum or call-out fees of $75 – $100.2,3
How much does it cost to replace a radiator valve?
Angi reports $150 – $300 including parts and labor. Fixr separately reports $125 – $250 for a valve repair and $150 – $350 for a valve replacement, both including labor.1,3
Related guides
Radiator Installation Cost
Boiler Repair Cost
Furnace Repair Cost
HVAC Repair Cost
All cost guides
Sources
1. Angi — How Much Does Radiator Repair Cost? (2026 data)
2. HomeAdvisor — Radiator Repair Cost (2025 data)
3. Fixr — Radiator Repair Cost (updated Jan 2025)