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How much does a home solar system cost in Ajax, ON?

Converted from US national rangeUpdated Prices checked October 20262 sources

A home solar system costs about CA$38,690 to CA$47,600, typical CA$43,760, using the US national range converted to Canadian dollars. That is EnergySage's US figure ($27,526 to $33,869) at 1.4054 CAD per USD (Bank of Canada, October 20, 2026), not a survey of Ajax prices.

Converted to Canadian dollars

Low
CA$38,690
Typical
CA$43,760
High
CA$47,600

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Solar panel installation cost in Ajax, ON

Each row says exactly what the figures are and where they come from.

Solar panel installation cost in Ajax, ON
EstimateLowTypicalHighBasisChecked
Converted to CADCA$38,690CA$43,760CA$47,600US national range × 1.4054 CAD per USD (Bank of Canada, October 20, 2026). Not a survey of Ajax pricesOctober 2026
US national range$27,526$31,135$33,869Per system: about 12 kW at about $2.60 per watt, before incentives (EnergySage)October 2026

What drives the cost of a home solar system

Dollar figures in this section are US national figures in US dollars.

  1. System size

    Larger systems generally cost less per watt.

  2. Roof complexity

    Multiple planes, dormers, skylights and shading add equipment and labor.

  3. Electrical panel

    A panel under 200 amps may need an upgrade, which can add a few thousand dollars.

  4. Equipment and installer

    Panel brand, inverter type and installer overhead change the price.

  5. Location and incentives

    Sunlight, electricity use and state or utility incentives vary by state.

Permits and what's included in Ajax

Fees quoted here are US figures in US dollars; Canadian permit fees are set by your municipality.

Permit note

Permitting and utility interconnection make up about 8% of the total cost. Your installer normally files both.

Rules are set locally; confirm with Ajax’s building department.

What’s usually included

  • Panels, inverter and racking
  • Design, permitting and interconnection paperwork
  • Installation labor

Scopes vary. Get the scope in writing on every quote.

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Top-ranked solar installers in Ajax

The top 3 of 74 solar installers we rank for Ajax, ON, by CR Score. Paid placement never changes rank.

  1. #1
    Go Lime
    CR Score 594.8from 6,512 Google reviews
  2. #2
    Voltly Energy
    CR Score 585.0from 22 Google reviews
  3. #3
    Sharpline Home Comfort
    CR Score 574.9from 215 Google reviews

See all ranked solar installers in Ajax

Solar panel installation cost in Ajax: questions

How much does a home solar system cost in Ajax, ON?

A home solar system costs about CA$38,690 to CA$47,600, typical CA$43,760, using the US national range converted to Canadian dollars. That is EnergySage's US figure ($27,526 to $33,869) at 1.4054 CAD per USD (Bank of Canada, October 20, 2026), not a survey of Ajax prices.

Are these prices in Canadian dollars?

Yes, converted. We have no Canadian price survey for this job, so we show the US national range converted at 1.4054 CAD per USD (Bank of Canada daily rate for October 20, 2026). Local labour, material and tax differences are not reflected.

Do I need a permit for a home solar system in Ajax?

Permitting and utility interconnection make up about 8% of the total cost. Your installer normally files both. Rules are set locally, so confirm with Ajax’s building department.

What affects the cost of a home solar system?

System size: larger systems generally cost less per watt. Roof complexity: multiple planes, dormers, skylights and shading add equipment and labor. Electrical panel: a panel under 200 amps may need an upgrade, which can add a few thousand dollars. Equipment and installer: panel brand, inverter type and installer overhead change the price.

How many solar installers serve Ajax?

We rank 74 solar installers for Ajax, ON by CR Score. Get at least three written quotes for the same scope.

What is usually included in the price?

Panels, inverter and racking; Design, permitting and interconnection paperwork; Installation labor. Always get the scope in writing on the quote.

Sources

Checked October 2026. Figures are estimates, not quotes.

  1. EnergySage: Solar panel cost · page updated October 16, 2026 · checked October 2026Primary source. Used for: Low, typical and high; basis; drivers; permitting share.
  2. Journal of Light Construction: 2025 Cost vs. Value Report: Solar Power Installation · page updated 2025 · checked October 2026Used for: Regional adjustment ratio.
  3. Bank of Canada: Daily exchange rates (USD/CAD) · page updated October 20, 2026Used for: Conversion rate 1.4054 CAD per USD.
These are published estimates converted at a stated exchange rate, checked October 2026. They are not quotes. Typical range shown: CA$38,690 to CA$47,600. Editorial policy

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