Window AC installation costs $310 on average, with most homeowners paying $139 to $515, according to Angi, based on 1,214 verified projects (updated September 2026)1. HomeAdvisor – corporate sibling publishing matching figures, which alone do not establish independent corroboration – reports the same $310 average and $139 to $515 normal range, with totals from $75 to $1,200 once unit price ($150 to $800) and labor ($60 to $300) are combined (updated June 2026)2. Fixr, an unaffiliated publisher, puts the national average at $546 for a defined project – installing an 8,000 BTU unit – with a $277 low end for a 5,000 BTU unit and a $1,709 high end for an 18,000 BTU unit (updated January 2025)3. Fixr's stated average range is omitted: its main cost table and a comparison table state different range tops. The averages carry different stated scopes, and no conclusion about the gaps follows.
Unit cost by size (BTUs)
Angi and HomeAdvisor price units by BTU band (2026)12; Fixr prices specific BTU sizes, materials only (2025)3:
| Unit size (BTUs) | Angi (2026) | HomeAdvisor (2026) | Fixr, materials only (2025) |
|---|---|---|---|
| 5,000 – 8,000 | $150 – $500 | $150 – $530 | – |
| 8,000 – 12,000 | $250 – $600 | $230 – $580 | – |
| 12,000 – 18,000 | $400 – $800 | $300 – $800 | – |
| 18,000 – 24,000 | $600 – $1,200 | – | – |
| 5,000 | – | – | $60 – $150 |
| 6,000 | – | – | $70 – $250 |
| 7,000 | – | – | $200 – $500 |
| 12,000 | – | – | $350 – $500 |
| 14,000 | – | – | $400 – $500 |
| 18,000 | – | – | $500 – $700 |
The sibling pages' per-band figures differ slightly; matching figures alone do not establish independent corroboration, and divergent ones are shown as published with no conclusion.
Unit cost by type
| Unit type | Angi (2026) | HomeAdvisor (2026) | Fixr (2025) |
|---|---|---|---|
| Standard window unit | $150 – $800 | $150 – $800 | – |
| Smart (Wi-Fi/app) | $300 – $1,100 | – | $250 – $500 (materials only) |
| ENERGY STAR-rated | $350 – $1,150 | – | $300 – $700 (materials only) |
| Window heat pump | – | – | $500 – $800 (materials only) |
| Portable | $200 – $1,000 | $400 – $1,400 | $300 – $1,500 (installed) |
| Wall-mounted (through-the-wall) | – | $200 – $700 (unit only) | $3,150 – $9,000 (installed) |
Scopes differ by column – Angi prices in an installation context, while Fixr's smart and ENERGY STAR figures are materials only – so rows are not directly comparable; the portable and wall-mounted figures diverge across publishers, and the pages state no shared sourcing. HomeAdvisor notes cutting through an exterior wall for a wall unit can add up to $1,0002.
Unit cost by brand
Fixr prices common window AC brands, materials only (2025)3:
| Brand | Average cost (materials only, 2025) |
|---|---|
| Hitachi | $150 – $650 |
| Daikin | $200 – $700 |
| Samsung | $200 – $700 |
| LG | $250 – $1,000 |
| Panasonic | $250 – $1,000 |
Labor and installation costs
HomeAdvisor prices professional installation labor at $60 to $300 for a permanent install and $50 to $75 for a temporary one, not including the unit2. Fixr reports most professionals charge $50 to $150 per project: $50 to $75 for a temporary kit installation and $100 to $150 for a permanent installation3. Angi reports HVAC technicians charge $50 to $100 per hour, with handypeople often slightly less1. The publishers' labor figures diverge in structure and amount; the pages state no shared sourcing, and no conclusion about the gaps follows.
Related work adds to the total: installing a new outlet costs $140 to $300, old-unit removal and disposal runs $50 to $200, and accessories or upgrades can add up to $8002. Permits, where required, cost $25 to $1001. HomeAdvisor's separately stated per-hour electrician figure is omitted: as published, it does not reconcile with the same page's flat outlet-installation price or typical electrician rates stated elsewhere, and no sound basis for it can be established.
Maintenance and repair costs
Angi and Fixr both state operating-cost estimates – monthly and yearly, respectively – without publishing the assumptions behind them (operating hours, electricity rates, or efficiency ratings), and Fixr's yearly table derives from a calculation whose inputs are not stated. Those estimates are omitted.13
Maintenance costs $65 to $150 for annual or biannual service, per Fixr3. Angi prices basic DIY upkeep at $25 to $75 annually and professional servicing at $75 to $150 per visit1. Angi also prices common repairs at $100 to $300 and full replacement at $200 to $1,2001.