How much does snow guard installation cost in Toronto?

Snow guard installation for standing seam metal roofs in Ontario typically ranges from $8–15 per linear foot installed, depending on roof size, slope, snow load zone, and number of retention rows required.

What type of snow guards work best on standing seam metal roofs?

Tubular snow retention systems are recommended for standing seam roofs. They attach to the seam ribs without drilling through the panel surface, preserving the roof warranty and waterproofing integrity.

Do you install snow guards on existing roofs in Toronto?

Yes. We install snow guards on existing standing seam, metal tile, shingle, and other roof types across Toronto, Mississauga, Vaughan, Markham, Oakville, and the GTA. Contact us for a free estimate.

Standing Seam Roofing Contractor in Toronto & GTA

CONTACT PHONE +1 647 9977 084

OPEN HOURS

Mon - Sat 8:00 - 18:00

ADDRESS

1680 Sismet Rd, Mississauga, ON L4W 1R4

Snow Guards Installation in Ontario

Q: How many snow guards do I need for my roof in Ontario?

The number of rows and spacing depends on roof slope, panel length, local ground snow load, and the location of vulnerable areas below the roof edge. There is no universal number — each layout requires individual calculation.

Why We Use Steel Snow Guards — Not Aluminum Snow Guards

Most contractors install aluminum snow guards on steel roofs. This creates a problem: aluminum clamped directly to steel causes galvanic corrosion at the contact point, degrading both the guard and the roof panel over time.

We install ORIMA tubular steel snow retention systems, manufactured in Finland and tested to 5 kN/m static load per SS 831367.

Key advantages:

— High-strength steel construction — tested load capacity of 5 kN/m, engineered for Ontario
snow loads up to 4.0 kPa (NBC 2020)

— No galvanic corrosion: steel-on-steel contact, no electrochemical reaction with the roof panel — Powder-coated to match your roof color exactly — no visible contrast, full corrosion resistance

— Non-penetrating clamps attach directly to the standing seam rib — no holes, no leaks, no warranty issues

— Compatible with mechanical lock (single and double) and snap-lock standing seam profiles

Note: aluminum snow guards are appropriate for aluminum roofs — we use them where the roof
material requires it.

Not sure how many rows you need? Use our snow retention calculator to get a layout
based on your roof dimensions and local snow load: Snow Guards Calculator

Roof Experts installs tubular steel snow guards and snow retention systems on metal roofs across Ontario. We work with standing seam roofs (snap-lock and mechanical lock profiles), metal panels, corrugated metal, shinglas roofs and commercial flat roofs throughout the Greater Toronto Area, including Toronto, Mississauga, Vaughan, Markham, Richmond Hill, Brampton, Oakville, Burlington, Barrie, and the Muskoka region. Free on-site assessment for residential and commercial projects in Ontario.

snow guard installation process on standing seam metal roof

Heavy snowfalls and freezing rain are common across Ontario between November and April. Snow loads in the Greater Toronto Area range from 1.4 to 2.0 kPa according to the National Building Code of Canada (NBC 2020), and increase to 3.0–4.0 kPa in the Muskoka and northern Ontario regions. On a typical residential roof, this translates to hundreds of kilograms of snow and ice accumulating on the surface during peak winter months.

When snow begins sliding off a metal roof, it can damage lower roofs, gutters, landscaping, vehicles parked below, and pose a safety risk to pedestrians and entry points. The smooth surface of standing seam and metal panel roofs accelerates this release compared to asphalt shingle systems, which makes snow retention especially important for metal roofing in Ontario. Read more about how to stop snow from sliding off a metal roof.

That is why structure owners are encouraged to install snow guards onto their metal roofs to prevent rooftop avalanche. A snow guard is also referred to as ice breaker, ice stop, ice rake, or sometimes as snow stop, snow block, or anti-snow barrier. When the melting mass goes down the snow fence, it breaks the snow in chunks, thus preventing it from crashing in one large swoop.

Contents hide

1 How do snow guards work?

2 FAQ

2.1 Do snow guards stop all snow from moving?

2.2 How do I know how many snow guards I need?

3 Pros and Cons of Various Types of Snow Guards

3.1 Stainless steel snow guards

3.2 Aluminum snow guards

3.3 Steel snow guards

3.4 Copper snow guards

3.5 Polycarbonate / plastic snow guards

4 There are different types of snow guards

4.1 Snow guards for metal roofs

4.2 Snow guards for Snap lock standing seam roofs

4.3 Snow guards for mechanical lock standing seam roof panels

5 How many snow guards do I need?

6 Roof snow load chart

7 Snow guards video

8 Snow guards projects

9 Estimate snow guards

Metal guards are widely used in Canada, including Ontario province and Toronto. Snow rails vary in their material. Typically, snow guards are made of stainless steel, zinc-coated steel, copper or aluminum, but sometimes they come in polycarbonate and plastic. Roof Experts strongly recommend installing zinc-coated steel guards as they proved to be heavy-duty, durable and have reasonably price. Over time, plastic and polycarbonate snow guards will become breakable: they chip or fracture.

Aluminum snow guards are not heavy-duty and not able to keep big amount of snow. Stainless steel and copper roof safety systems are expensive and have a longer life span equal to or greater than the metal roof itself. There have been independent researches that proved that metal roofs last over 50 years longer than other roofing materials.

Many of our projects are installed on standing seam metal roofs, including snap-lock and mechanical lock profiles.

For detailed guides and snow safety resources, visit our dedicated website: Safe Roof Experts.

The best thing about snow guards from Roof Experts is that they work equally well for practically any kind of roof and its elements:

shingle roofs
slate roofs
metal tile roofs
classical and snap-lock standing seam metal roofs
corrugated metal roofs
straight rib panels roofs
PVC or bitumen membrane roofs

How do snow guards work?

Snow guards control snow movement on the roof rather than blocking it completely. The system retains snow on the surface long enough for it to release gradually in smaller volumes, instead of falling as a single uncontrolled mass that damages property below.

Several hundred years ago, builders in cold climates placed stones and logs on roofs to increase friction with the snow. Today's tubular snow guards work on the same principle in a more efficient form. The system uses horizontal steel pipes secured by brackets approximately every 600–900 mm along the roof, depending on snow zone, roof slope, and panel profile.

The tubes break accumulating snow into smaller manageable releases. Bracket spacing and the number of tube rows are calculated for each project based on roof length, slope, and the snow load for the specific region.

FAQ

Do snow guards stop all snow from moving?

No. Snow guards are designed to retain and control snow movement, not eliminate all motion under every condition.

How do I know how many snow guards I need?

The layout depends on roof slope, length, profile, local snow load, and the location of vulnerable areas below the roof edge.

Pros and Cons of Various Types of Snow Guards

If you consider enhancing the roof safety, you will want to wrap your head around the difference between numerous kinds of snow stoppers. Let us have a closer look at the most popular ones: metal and plastic snow holders.

The roofing market offers numerous solutions for the protection from heavy snows. The difference is based on the properties of the holder material. The metal ones are the most expensive devices as they are not subject to corrosion, ideally suit any type of roof. Moreover, the service life of stainless steel or copper snow guards is comparable to the service life of a metal roof, i.e. over 50 years.

Stainless steel snow guards

Pros

Long–lasting solution:

This type of snow retention system is exceptionally durable and can work as long as the metal roof underneath, i.e. from fifty years and over.

Easy installation

Tubular stainless-steel snow catchers can be installed easily and fast on most types of the roofs. Usually they are found on expensive kind of roofs such as slate roof.

Efficient

The system is very efficient as tubular arrangement of the holders can withstand the heaviest loads and does not let the snow or ice come down in chunks or avalanches.

Cons

This kind of snow stoppers is considerably high-priced. It is explained by the cost of the metal itself: it is produced in several complicated stages of processing. As a result, it comes out very robust and durable.

Aluminum snow guards

Pros

Lower upfront cost for single-bar systems

Single-bar aluminum snow guards are a cost-effective option for low-to-moderate snow load applications where aesthetics are the priority.

Functional

Snow stoppers are perfect for keeping snow on the roof and preventing any damages to the property or injuries to people around the building.

Cons

Lower load capacity

Aluminum is a softer metal. On roofs with high snow loads — common across Ontario at 2.0–4.0 kPa (NBC 2020) — steel systems provide significantly more reliable retention.

Galvanic corrosion on steel roofs

When aluminum clamps contact steel panels directly, galvanic corrosion develops at the contact point over time — degrading both the guard and the roof panel surface.

Not suitable for all roof types

Aluminum guards are appropriate for aluminum roofs. On steel standing seam roofs, we recommend steel-on-steel systems to avoid corrosion risk.

Steel snow guards

Pros

Heavy-duty

The system is installed easily on practically any metal roof and demonstrates enhanced properties against any winter precipitation.

Efficient

The holders withstand any weather, snow, ice and wind.

Good price

The price for steel snow retention system is cost-competitive while ensuring high quality.

Come in different colours

It is easy for the snow guards to match the style of your house. They come virtually in any color.

Cons

If the manufacturer skimped on quality, there could appear problems with corrosion. However, this is never the case with snow guards from Roof Experts.

Copper snow guards

Pros

Incredibly heavy-duty

Indeed copper holders proved to be unbeatably robust against force of nature.

Look elegant and classy

Being durable copper catchers also boasts beautiful appearance on copper roofs.

Cons

Limited application

With that said we come to the disadvantages of copper system. Such snow guards fit the copper roof only.

Very expensive.

Polycarbonate / plastic snow guards

Broken plastic polycarbonate snow guards on metal roof

Pros

Cheap and easy to install

That is where the benefits of the plastic snow guards end. According to our customers, the polycarbonate devices cannot withstand even the low snow load, they can be drawn away, rip off part of the roofing material or begin to decay under the sun.

Cons

Unreliable

These inexpensive holders are comparatively new on the construction market. The polycarbonate devices are indeed cheap and easy to install. The stoppers are made from transparent plastic and can be attached to the roof with special glue to the roof top.

Type of devices	Price	Durability	Life span
Stainless steel snow guards	High	Heavy-duty durability	Lifetime
Aluminum snow guards	Fair	Practical solution for the roofs	Over 50 years
Steel snow guards	Fair	Practical solution for heavy snow load.	Over 50 years
Copper snow guards	High	Extremely durable as well as exceedingly costly. It is advised to use this kind of snow guards on the copper roofs. It guarantees the uniformity of style and metal safety	Lifetime
Polycarbonate / plastic snow guards	Low	Cheap and not reliable. We have seen many clients asking to swap them for the metal ones.	A few years

To sum up it appears that the best balance between cost and quality is reached with the tubular steel snow guards. Unfortunately, they do not fit all types of standing seam metal profiles. For this reason, in certain seldom cases listed above some roof profiles require using aluminum or copper system snow stoppers. Keep in mind that this is always a more expensive solution.

For full product range, technical specifications, and engineering support visit our dedicated snow retention resource:

Safe Roof Experts — snow retention systems for contractors, architects, and engineers across Canada and USA.

There are different types of snow guards

Snow guards for metal roofs

Snow guards for metal tiles panels and straight rib panels connected by special screws to the metal roof base.

Snowguards for metal tile and straight rib panels

Snow guards for Snap lock standing seam roofs

Snow guards for snap lock standing seam roofs connected by brackets to the ribs of panels (see the left picture below).

Snow guards for mechanical lock standing seam roof panels

Snow guards mechanical standing seam roofs connected by brackets to the seamed ribs of the metal panels.

How many snow guards do I need?

Depending on the region climate (amount of snow), length, width and pitch of slope, we determine the quantity of the snow guards required to retain snow on the roof. So you better either know these numbers or our crew will make the measurements on site.