R22 to R407c Conversion Cost for Residential HVAC Systems 2026

Typical homeowners pay $1,200-$4,500 to convert an R22 air conditioning system to R407c, with larger or more complex systems costing more. The R22 to R407c conversion cost depends on system tonnage, retrofit parts, compressor condition, and labor access; this article lists low-average-high prices and the main cost drivers.

Item	Low	Average	High	Notes
Single-split residential (1.5–3 ton)	$1,200	$2,200	$3,500	Assumptions: standard coil, simple site access, Midwest labor.
Large split / 4–5 ton	$1,800	$3,000	$4,500	Assumptions: extra refrigerant, possible oil change.
Full system replacement (new equipment)	$4,500	$7,500	$12,000	Assumptions: new condenser and coil, premium SEER.

Typical Cost To Convert an R22 System to R407c

Converting an existing R22 system to R407c usually runs $1,200-$4,500 for residential systems; most homeowners fall near $2,200. This covers retrofit parts, partial labor, and refrigerant charge but assumes an operational compressor and intact evaporator/condenser coils.

Assumptions: 1.5–3 ton system, 10–20 ft refrigerant line, normal access, non-commercial.

Line Items: Materials, Labor, Equipment, and Disposal Costs

Cost Component	Low	Average	High
Materials (oil, filter driers, valves)	$150	$300	$600
R407c Refrigerant	$100	$250	$600
Labor (techs, recovery, testing)	$600	$1,200	$2,000
Equipment Rental / Vacuum Pump	$50	$150	$400
Disposal / Recovery Fees	$50	$150	$300

Major quote lines are refrigerant, labor, and parts such as filter driers and oil flush if required.

How System Size, Line Length, and Compressor Condition Change Price

System tonnage strongly alters cost: 1.5–3 ton systems add $1,200-$2,500 while 4–5 ton systems add $1,800-$4,500 due to larger refrigerant volume and labor. Longer line sets over 25 ft typically add $300-$1,000 for extra charge and possible brazing.

Compressor condition: a compressor that must be replaced adds $700-$2,500; an oil change and compatibility test add $150-$400.

Ways To Lower R22 To R407c Conversion Price

Avoid unnecessary full replacements and control scope: have the tech pressure-test and leak-locate before committing. Replacing only filter driers and adding retrofit refrigerant saves several hundred dollars versus full system tear-out when the compressor is healthy.

Additional savings: schedule in shoulder season, get 3 competitive quotes, and complete accessible prep work like clearing attic access or moving furniture to reduce labor hours.

Regional Price Differences And What To Expect Locally

Prices vary by region: coastal urban areas are typically 10–25% higher than the national average; rural markets can be 5–15% lower. Expect +15% in California/NE metropolitan areas and -10% in parts of the Midwest for similar scopes.

Assumptions: labor rates and local permit fees cause most regional deltas.

Typical Job Time, Crew Size, And Hourly Rates For Retrofits

Most residential conversions take 4–12 hours with 1–2 technicians; labour rates range $75-$125 per hour. Smaller 1.5–2 ton systems: 4–6 hours; larger 3–5 ton: 6–12 hours including testing and leak repair.

Three Real-World Quote Examples With Specs And Totals

Example	Specs	Labor Hours	Parts & Refrigerant	Total
Budget Retrofit	1.5 ton, short lines, good compressor	4	$250	$1,200
Standard Home	3 ton, 20 ft lines, oil flush	8	$600	$2,600
Complex Job	4.5 ton, 40 ft lines, compressor replacement	12	$1,800	$4,800

These examples show how line length and compressor work create the largest swings between low and high totals.