# Garage Conversion in Oshawa, ON

Garage Conversion in Oshawa, ON typically costs $20,000 to $55,000 per project in 2026. Get a free, fixed-price quote from licensed, insured local pros.

_Source: https://www.prohousemaintenance.com/services/garage-conversion/ontario/oshawa/_

- **Author:** [Priya Shah](https://www.prohousemaintenance.com/authors/priya-shah/), Home Systems Writer
- **Published:** 2026-05-29
- **Updated:** 2026-11-02

Garage Conversion in Oshawa, ON from Pro House Maintenance starts with a free, fixed-price estimate from a licensed, insured local crew. Typical Garage Conversion projects run $20,000–$55,000 per project. We handle the work end to end, keep the job site clean, and don't consider it done until you're satisfied.

Serving Downtown Oshawa, Kedron, Windfields, Taunton, Lakeview and nearby Ontario communities.

_Quote form: this page has a form to request free quotes from local pros. Open https://www.prohousemaintenance.com/services/garage-conversion/ontario/oshawa/ to use it._

## Matched with a vetted garage conversion specialist in Oshawa, ON.

Every garage conversion job goes to a licensed, insured, background-checked professional from our own crews or hand-vetted local network, never a random subcontractor.

- Licensed & insured, background-checked pros
- Free, fixed-price written estimate before work begins
- Top-rated local specialists matched to your job

[Get a free estimate](https://www.prohousemaintenance.com/contact/)

## Garage Conversion statistics: what the data says

Current industry and government data on garage conversion, with every figure linked to its source. These national benchmarks help Oshawa homeowners judge a fair garage conversion quote before hiring a pro.

- A garage conversion averages about $30,659, ranging from roughly $9,659 to $51,659 depending on scope ([This Old House](https://www.thisoldhouse.com/garages/garage-conversion-cost)).
- A two-car garage adds about 400 to 440 square feet of potential living space, and a single-car garage 200 to 240 ([This Old House](https://www.thisoldhouse.com/garages/garage-conversion-cost)).
- California homes with an ADU appraised at a median $1,064,000 in 2023, versus $715,000 for homes without one ([FHFA](https://www.fhfa.gov/blog/statistics/trends-in-median-appraised-value-for-properties-with-accessory-dwelling-units-in-california)).
- 2.8 million ADU permits are tracked in a national permit database, with California accounting for 32% ([Shovels](https://www.shovels.ai/blog/adu-boom-2.8M-permits/)).

[Read the full garage conversion statistics report →](https://www.prohousemaintenance.com/blog/garage-conversion-statistics/)

From Downtown Oshawa, Kedron and Windfields to the rest of Oshawa, Pro House Maintenance connects the area's roughly 175,383 residents with vetted garage conversion pros. The work is licensed and insured, priced up front at a typical $20,000–$55,000 per project, and backed by a free written estimate before anything starts.

## What does garage conversion include in Oshawa?

A garage conversion project in Oshawa typically covers 6 core areas, starting with permit drawings and city filing. Pro House Maintenance handles the full scope with a licensed, insured local crew and a free, fixed-price written estimate before any work begins.

- Permit drawings and city filing
- Insulation, vapor barrier, and framing
- Drywall, flooring, and trim
- Electrical panel upgrade and lighting
- Mini-split HVAC installation
- Exterior door and window installation

## How does garage conversion work in Oshawa?

Garage Conversion in Oshawa follows 4 clear steps, from feasibility and permits to a final walkthrough. A vetted local pro manages the schedule, keeps the site clean, and does not consider the job done until you are satisfied.

### Feasibility and permits

We check zoning rules, ADU ordinances, and HOA restrictions, then prepare and file permitted drawings.

### Structural and envelope

Garage door opening is framed in, new exterior door and windows are set, and the slab is prepped for flooring.

### Mechanical rough-in

Electrical panel upgrades, circuit runs, plumbing stubs (if a bathroom is included), and mini-split lines are roughed in and inspected.

### Interior finish

Insulation, drywall, flooring, paint, and trim complete the space to full residential standards.

## How much does Garage Conversion cost in Oshawa?

Garage Conversion in Oshawa typically runs $20,000–$55,000 per project, based on scope and materials. Pro House Maintenance gives every Oshawa homeowner a free, fixed-price written quote before any work begins.

**Garage Conversion in Oshawa, ON at a glance**

| Detail | What to expect |
| --- | --- |
| Typical cost | $20,000–$55,000 per project |
| Estimate | Free, fixed-price written quote |
| Crews | Licensed & insured, vetted local pros |
| Service area | Oshawa, Ontario and nearby communities |

## Garage Conversion in Oshawa: questions answered.

### How much does garage conversion cost in Oshawa?

In Oshawa, garage conversion typically runs based on scope and materials. Pro House Maintenance gives every Oshawa homeowner a free, fixed-price written quote before any work begins, so there are no surprises.

### Can a garage conversion be rented as an ADU?

In most cities, yes, with proper permits and an approved ADU designation from your local building department. Requirements vary by municipality and include minimum ceiling height, egress windows, ventilation, and sometimes a separate utility meter. We research your jurisdiction's ADU rules, handle the permit process, and ensure the finished space fully qualifies for legal rental occupancy.

### Do I need to add HVAC to a garage conversion?

Yes, any habitable space legally requires conditioned air for occupancy approval. A ductless mini-split is the most efficient and practical solution for a converted garage because the space typically cannot connect to the home's existing duct system. We size the unit to the converted square footage and install it as part of every conversion project, included in the permit scope.

## Other services in Oshawa

- [Attic Finishing](https://www.prohousemaintenance.com/services/attic-finishing/ontario/oshawa/): Transform wasted attic space into a bedroom, office, or bonus room.
- [Basement Renovation](https://www.prohousemaintenance.com/services/basement-renovation/ontario/oshawa/): Turn an unfinished basement into living space you'll actually use.
- [Bathroom Remodeling](https://www.prohousemaintenance.com/services/bathroom-remodeling/ontario/oshawa/): Spa-worthy bathrooms built on time and within budget.
- [Cabinet Installation](https://www.prohousemaintenance.com/services/cabinet-installation/ontario/oshawa/): Custom, semi-custom, and stock cabinets installed level, plumb, and built to last.
- [Concrete and Masonry](https://www.prohousemaintenance.com/services/concrete-and-masonry/ontario/oshawa/): Foundations, flatwork, steps, and walls built to carry loads for generations.
- [Deck Building](https://www.prohousemaintenance.com/services/deck-building/ontario/oshawa/): Custom decks designed and built to complement your outdoor living space.
- [Door Installation](https://www.prohousemaintenance.com/services/door-installation/ontario/oshawa/): New interior and exterior doors installed plumb, level, and properly weathersealed.

## Garage Conversion in nearby cities

- [Toronto, ON](https://www.prohousemaintenance.com/services/garage-conversion/ontario/toronto/)
- [Ottawa, ON](https://www.prohousemaintenance.com/services/garage-conversion/ontario/ottawa/)
- [Mississauga, ON](https://www.prohousemaintenance.com/services/garage-conversion/ontario/mississauga/)
- [Hamilton, ON](https://www.prohousemaintenance.com/services/garage-conversion/ontario/hamilton/)
- [London, ON](https://www.prohousemaintenance.com/services/garage-conversion/ontario/london-on/)

## Key takeaways

- Garage Conversion in Oshawa from Pro House Maintenance starts with a free, fixed-price estimate and no obligation.
- Typical garage conversion projects in Oshawa, ON run $20,000–$55,000 per project.
- All crews are licensed, insured, and vetted local professionals.
- All crews are licensed and insured.
- Financing is available for qualified homeowners.
- Pro House Maintenance serves Oshawa, Ontario and surrounding communities.

## Get a free garage conversion estimate in Oshawa.

[Get a Quote](https://www.prohousemaintenance.com/contact/)

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