What it costs
By construction, which is the only breakdown that explains the spread:
| Door | Single, installed | Double, installed |
|---|---|---|
| Steel, not insulated | $1,000–$1,800 | $2,000–$3,500 |
| Steel, insulated | $1,500–$4,000 | $2,000–$4,500 |
| Aluminium or fibreglass | $2,000–$3,500 | $3,500–$6,000 |
| Wood composite | $2,500–$4,500 | $4,000–$6,500 |
| Aluminium and glass, modern | $2,500–$7,000 | — |
| Solid wood or custom | $3,500–$10,000 | $6,000–$12,000 |
Labour is typically $350 to $700 per door, and removal and disposal of the old one runs $50 to $250 and is often included. An insulation upgrade within the same door line adds $200 to $600.
The honest caveat: one Ontario source puts a single door at $800 to $2,000 installed and another puts it at $2,000 to $5,500. Both are describing real quotes. The construction table above is what reconciles them, and it is the table to compare your quote against.
Openers, springs and repairs
| Item | Typical CAD |
|---|---|
| New opener, installed | $300–$900 |
| Belt-drive opener replacement | $550–$950 |
| Opener repair rather than replacement | $220–$450 |
| Smart retrofit controller for an existing opener | $50–$200 |
| Battery backup | $50–$100 |
| Torsion spring, one | $200–$350 |
| Torsion springs, pair | $280–$520 |
| Cables | $80–$320 per cable, sources differ widely |
| Rollers, set of 10–12 | $50–$260, sources differ widely |
| Track repair or realignment | $220–$400 |
| Track replacement | $300–$500 per track |
| Service call | From about $150; after hours adds $60–$250 |
| Framing repairs found on removal | $200–$800 |
R-value: a number that measures less than you think
This deserves more scepticism than it usually gets, and the scepticism comes from the door industry itself.
The Door and Access Systems Manufacturers Association states that calculated R-values should not be used for garage door assemblies, because the method estimates the insulating value of a door section without accounting for section joints, stile attachments and the rest of the assembly. R-value ignores the joints between panels, the thermal breaks, the weather seals and the hardware.
Their recommended measure is the tested assembly U-factor, which they say provides the highest degree of confidence when comparing thermal performance — and which is what building codes actually reference.
So the practical reading: two doors both badged R-16 can perform quite differently. The sticker is a centre-of-panel number for one section, not a rating for the door you will end up with.
What insulation level your garage actually justifies
From a Canadian manufacturer’s own guidance, which is notably more restrained than most sales advice:
| Garage | Recommended |
|---|---|
| Detached, unheated | Lightly insulated or non-insulated is sufficient |
| Attached | Minimum R-10 |
| Heated to roughly 8–10 °C | R-12 minimum |
| Workshop or gym | R-16 or higher |
The same manufacturer adds the part that matters: R-value alone is insufficient, and proper weatherstripping, thermal breaks and weathersealing are what actually determine energy performance.
Here is our reading of that, offered as reasoning rather than as a sourced claim. If your attached garage is unheated, the meaningful thermal boundary is the insulated house wall and the door between the garage and the house — not the overhead door. The upsell from R-12 to R-18 on an unheated garage is mostly spent money, while a proper bottom seal and side weatherstrip is not.
The code requirement everyone gets wrong
Search for garage doors and Ontario Building Code and you will find people talking about fire separation. Here is what the Code actually requires, and it is not what most articles say.
Nothing in the Code attaches to the overhead vehicle door. The requirements attach to the door between an attached or built-in garage and the dwelling unit:
- That door shall be tight-fitting and weather-stripped to provide an effective barrier against the passage of gases and exhaust fumes, and shall be fitted with a self-closing device.
- That doorway shall not be located in a room intended for sleeping.
And the counter-intuitive part: where a garage serves only the house it is attached to, the Code does not require a fire separation between the garage and the dwelling. What it requires instead is an air barrier system across the garage-to-house boundary, to stop gases and exhaust fumes.
So the risk the Code is managing here is carbon monoxide, not flame. None of it is triggered by replacing your overhead door — but if the door from your garage into the house has no self-closer, that is a live code deficiency and it costs very little to fix.
One caveat we would rather state than hide: the fire-separation exemption above comes from a published Building Code reference reproducing the earlier edition, and the legally effective code is now the 2024 edition. The wording is very likely unchanged, but confirm with your municipality before relying on it.
Springs: the part that is genuinely dangerous
This is not contractor self-interest. The manufacturers’ association is explicit:
- Cables, because of the dangers associated with high spring tension, should be replaced only by a trained technician.
- Bottom brackets, which connect directly to the spring system under tension, should be adjusted or loosened only by a trained door systems technician.
- Extension springs require safety cables, because if the spring breaks it may cause injury.
- Springs wear out, and when they break, injury can result.
What a homeowner can safely do: monthly safety checks, keeping fingers out from between sections, and reading the manufacturer’s manual. If the door operates awkwardly when you lift it by hand, the spring system is likely out of balance — which is a phone call, not a project.
On lifespan: installers commonly quote standard springs at around 10,000 cycles and five to seven years at two to five uses a day, with high-cycle springs rated 20,000 or more. We could not find those cycle figures published by the manufacturers’ association, so treat them as trade figures rather than specifications — and ask the door’s own maker.
What the association does confirm is why springs fail early: the wrong spring for the door’s weight, incorrect torque on installation, improper stretch causing coils to touch, nicks and notches in the wire, rust, and lack of lubrication. Which means a cheap spring job is a genuine false economy.
And replacing both springs when only one breaks is not an upsell. They are installed as a pair and wear at the same rate.
Permits and electrical
Replacing a garage door like for like needs no building permit in Toronto, provided there is no change to the location or size of the opening, the structural support for the opening is not altered, and no new exit is created.
A permit is required for a new opening where there was none, and for enlarging or relocating an existing one. The trigger is the structural support: a wider opening means a new header, and a new header is a structural alteration.
Converting a garage to living space is a different matter again — it involves both structural or material alteration and a change of use, and it engages the garage separation requirements above. Treat it as a permitted project and talk to your municipality.
On the electrical side, the line is cleaner than people assume. Plugging a new opener into an existing, properly installed receptacle is not electrical work. Running a new circuit or adding a receptacle for the opener is electrical work, and the Electrical Safety Authority requires a notification of work filed before the work begins. A homeowner doing their own work files it personally.
One thing we are not going to assert: whether the Ontario Electrical Code requires a dedicated circuit for a residential opener. Installers say so routinely; we could not confirm it from the code or from ESA. Most installers run one, and it is good practice either way.
Wind load, and why it probably does not matter to you
There is no confirmed Ontario-specific wind-load rating requirement for residential garage doors. The Canadian method calculates a design pressure from the one-in-fifty-year reference velocity pressure for your location, and the industry guide describes testing as something performed if required by the local authority — not as a universal mandate.
Where it does start to matter is exposed open-terrain sites — rural and lakefront lots — where the terrain factor alone raises design pressure by around a third, and where the door is a large double. On a suburban lot with houses on both sides, it is not the thing to spend your attention on.
We also could not confirm that garage doors fall inside the Canadian fenestration standard often cited at homeowners, so we are not telling you they must meet it.
Red flags
| What you see | Why it matters | What to do |
|---|---|---|
| Emergency advertising, then the price grows on site | The documented pattern is a low service-call fee followed by demands for more work and more parts | Get a written estimate detailing scope, materials and costs before any work |
| Payment in full demanded before the work is done | Ontario’s guidance is a deposit of no more than 10%, never full payment up front | Pay a deposit, pay the balance on completion |
| R-16 or R-18 pushed for an unheated garage | The manufacturer’s own guidance is R-10 minimum for an attached garage and nothing special for a detached unheated one | Ask what the garage is used for, then buy to that |
| Sold purely on R-value | The industry association says calculated R-values should not be used for garage door assemblies | Ask about the U-factor, the thermal break and the weatherseal |
| A quote for one spring | Springs are a pair and wear together; one new and one old fails again soon | Replace both, and ask which cycle rating you are getting |
| An offer to widen the opening with no permit | A wider opening means a new header, which is a structural alteration | Permit first |
| No written contract on a job over $50 | Ontario requires home renovation contracts over $50 to be in writing | Get it in writing — it is also what makes the 10% estimate rule work |
One protection worth remembering in a pressured moment: a contract worth over $50 signed in your home carries a ten-day cooling-off period, with no reason required. Our guide to your rights under an Ontario renovation contract covers it.
Frequently asked questions
Installers generally run a dedicated circuit, but we could not confirm it as a code requirement from the Electrical Safety Authority or the Ontario Electrical Code. What is clear is the notification rule: plugging an opener into an existing receptacle is not electrical work, while running a new circuit or adding a receptacle is, and that requires an ESA notification of work filed before the work starts.
You should not. The manufacturers’ association reserves spring replacement, cable replacement and bottom bracket adjustment for trained door systems technicians, because of the tension involved. Replacement runs $200 to $350 for a single torsion spring and $280 to $520 for a pair, with service calls starting around $150. Replacing both at once is not an upsell — they are installed as a pair and wear at the same rate.
Not a fire separation, where the garage serves only the house it is attached to. What the Code requires is an air barrier across that boundary, and a door that is tight-fitting, weather-stripped against gases and exhaust fumes, and fitted with a self-closing device. That doorway also may not open into a room intended for sleeping. The risk being managed is carbon monoxide, not flame.
Not for a like-for-like replacement, provided the opening does not change size or location, the structural support is not altered and no new exit is created. A permit is required for a new opening, or for enlarging or relocating an existing one, because a wider opening needs a new header. Converting a garage to living space involves both structural alteration and a change of use and needs a permit.
Less than you are usually sold. A Canadian manufacturer’s own guidance is nothing special for a detached unheated garage, a minimum of R-10 for an attached garage, R-12 for a garage heated to around 8 to 10 degrees, and R-16 or higher only for a workshop or gym. The manufacturers’ association also warns that calculated R-values should not be used for garage door assemblies at all, because they ignore joints, stiles and seals — the tested U-factor is the meaningful comparison.
By construction: non-insulated steel $1,000 to $1,800 single, insulated steel $1,500 to $4,000, aluminium or fibreglass $2,000 to $3,500, wood composite $2,500 to $4,500 and solid wood or custom $3,500 to $10,000. Doubles run roughly $2,000 to $12,000 across the same materials. Labour is $350 to $700 per door and disposal of the old one $50 to $250.
Sources
- DASMA (Door and Access Systems Manufacturers Association) — TDS-163 on R-value and U-factor; TDS-190 on factors affecting spring cycle life; garage door and door system safety tips; TDS-155u wind load guide based on the National Building Code of Canada, dasma.com, checked 19 September 2026
- Ontario Building Code articles 9.10.13.15 (door between attached garage and dwelling unit) and 9.10.9.16 (garage separation and air barrier), via published Building Code references; the legally effective edition is O. Reg. 163/24, in force 1 January 2025, checked 19 September 2026
- City of Toronto — when do I need a building permit; note the page addresses windows and doors generally rather than garage doors specifically, toronto.ca, checked 19 September 2026
- Electrical Safety Authority — notifications and what you need to know, esasafe.com, checked 19 September 2026
- Garaga — R-value guidance by garage type, garaga.com, checked 19 September 2026
- Government of Ontario — your rights when starting home renovations or repairs, ontario.ca, checked 19 September 2026
- Better Business Bureau — scam alert on garage door repair; note the alert is United States focused and describes a pattern rather than Canadian enforcement, bbb.org, checked 19 September 2026
- Pricing ranges: HomeStars, Green Building Canada, Ottawa Contractors, RenoQuotes, Ottawa Garage Door and Titan Garage Doors, all checked 19 September 2026
Building Code requirements and municipal permit rules change, and the 2024 Code edition took effect on 1 January 2025. Confirm with your municipality before relying on any code point here. Carpenter Bee does not install or service garage doors.
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