Roofs on estate lots fail in a different pattern than roofs in a subdivision. The houses out here sprawl — hips, valleys, dormers, and low-slope porch and sunroom sections tied into a steeper main roof — which means more linear feet of flashing and valley per square of plain field shingle, and more of the roof sitting below the pitch where asphalt shingles are happiest. Add mature tree cover, long eavestrough runs with few sensible downspout locations, and a driveway a dump trailer may not be able to reach, and the estimate stops looking like the one your cousin got in Barrhaven. This page covers what roofing, eavestrough and gutter guards actually cost in the Ottawa area in 2026, when the City needs a permit, and where the ice-dam problem really comes from.
| Asphalt shingle replacement, typical bungalow (30-yr architectural) | $7,500 – $11,500 |
| Asphalt shingle replacement, premium 50-yr product | $9,500 – $14,500 |
| Larger home, 2,000 – 3,000 sq ft | $16,000 – $22,000 |
| Metal — interlocking steel shingle, installed | $8 – $14 / sq ft |
| Metal — standing seam on a bungalow | $18,000 – $30,000 |
| Roof repair — minimum call-out / small leak | $250 – $800 |
| Emergency tarp-over | $400 – $700 |
| Rotten decking replacement | $3 – $5 / sq ft |
| Second-layer tear-off (labour + disposal) | $2,300 – $5,000 |
| Eavestrough — 5" aluminium, installed | $8 – $15 / lin ft |
| Eavestrough, whole house (120–180 lin ft) | $960 – $2,700 |
| Gutters + soffit + fascia as one package | $3,000 – $7,000 |
| Gutter guards — micro-mesh, medium home | $1,500 – $5,000 |
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Shingle or metal, and what each one really costs
A straightforward asphalt shingle replacement on an Ottawa bungalow runs roughly $7,500 to $11,500 for architectural 30-year product, and $9,500 to $14,500 if you step up to a 50-year designer shingle. Bigger footprints scale with them: 2,000 to 3,000 square feet of house lands nearer $16,000 to $22,000. Metal is priced by system rather than by shingle — exposed-fastener steel at roughly $6 to $10 per square foot installed, interlocking steel shingle at $8 to $14, and standing seam at $12 to $20, which puts a standing-seam bungalow in the $18,000 to $30,000 band. The two line items that blow up a quote are almost never the shingle: rotten decking at $3 to $5 per square foot, and tearing off a second existing layer, which adds $800 to $1,500 in labour and $1,500 to $3,500 in disposal if the roof has been layered twice. Ask whether the quote assumes one layer, and ask what happens if the crew finds soft decking, before the tear-off starts rather than after.
Ottawa does not need a permit to re-roof — until it does
The City of Ottawa's own list of projects not requiring a building permit includes installing asphalt shingles on a roof. Exempt work still has to comply with the Ontario Building Code. What does pull a permit is structural: altering rafters or trusses, raising or changing the roofline, adding dormers, cutting in a skylight that needs new framing, or moving to a system that materially increases load. Those jobs usually need engineer-stamped drawings on top of the permit fee. Separately, if a property is designated under the Ontario Heritage Act — relevant in the village core, less so on the concessions — an exterior material change needs heritage approval whether or not a building permit is involved.
Ice dams, and why the Code minimum is not enough on a shallow roof
The Building Code requires eave protection membrane extending from the roof edge a minimum of 900 mm up the slope, to a line not less than 300 mm inside the inner face of the exterior wall. On a steep roof with a modest overhang that lands the membrane well inside the heated wall line, which is the point. On a shallow-pitch roof with a deep estate-house overhang, 900 mm of membrane can terminate outside the warm wall — which is exactly the geometry that leaks once a dam forms, because a long shallow run gives meltwater more distance to refreeze before it clears the eave. Wider membrane coverage is a spec upgrade, not a Code requirement, and it is worth asking for by name. The other half of the fix is not on the roof at all: it is attic insulation and ventilation, because a dam forms when heat escapes into the attic and melts snow that then refreezes at the cold eave.
Eavestrough, guards, and the tree-cover problem
Five-inch aluminium eavestrough runs about $8 to $15 per linear foot installed and six-inch oversized about $10 to $18, so a typical house at 120 to 180 linear feet lands between $960 and $2,700. Bundled with soffit and fascia the package is usually $3,000 to $7,000. Gutter guards are where the numbers get wide and the sources disagree: micro-mesh runs roughly $14 to $32 per linear foot installed, which puts a medium house anywhere from $1,500 to $5,000 depending on which vendor you ask. Heated guards with self-regulating cable run $24 to $47 per foot. On a treed estate lot guards are a stronger argument than on an open subdivision lot, simply because there is more organic debris and fewer opportunities to get a ladder safely to a two-storey eave. Long roof runs also mean long trough runs with few good downspout locations, so oversized trough and extra downspouts come up more often out here — that is a genuine drainage decision, not an upsell to reflex against.
Metal roofs shed snow all at once
The advantage of metal is that snow slides off rather than accumulating. That is also the hazard. A metal roof discharges its load abruptly, and where it discharges over an entrance, a walkway, a lower roof section or a heat pump condenser, that is a design problem solved with snow guards or snow rails and roof geometry — not something to discover in February. Ontario's site-specific ground snow load comes from the Building Code's supplementary climatic data rather than one provincial number, so the sizing conversation belongs with the installer and the manufacturer's spec.
Common questions
Do I need a permit to replace my roof in Ottawa?
Not for a straight re-shingle. The City of Ottawa lists installing asphalt shingles on a roof among the projects that do not require a building permit, though the work must still comply with the Ontario Building Code. A permit is required if you alter rafters or trusses, change or raise the roofline, add dormers, cut in a skylight that needs new framing, or change to a system that materially increases structural load. Heritage-designated properties need separate heritage approval for exterior material changes regardless.
How much does a roof replacement cost in the Manotick area?
For an asphalt shingle replacement on an Ottawa bungalow, roughly $7,500 to $11,500 with architectural 30-year shingles and $9,500 to $14,500 with a premium 50-year product. Larger estate footprints of 2,000 to 3,000 square feet run nearer $16,000 to $22,000. These are typical ranges for the area rather than a quote for your roof — pitch, number of valleys, existing layers and driveway access all move the number.
Is a metal roof worth it here?
It depends on what you are buying. Metal costs roughly $6 to $20 per square foot installed depending on the system, so $18,000 to $30,000 for a standing-seam bungalow against maybe $10,000 for good asphalt. What you get is a much longer service life and snow that sheds rather than sits. What you take on is sliding snow, which needs snow guards wherever the roof discharges over a door, a walkway, a lower roof or an outdoor unit. On a long-hold family home the arithmetic often works; on a house you plan to sell in five years it usually does not.
What causes ice dams and can a roofer fix them?
Heat escaping into the attic melts snow on the warm part of the roof, the meltwater runs down and refreezes at the cold eave, and the dam that builds up backs water under the shingles. A roofer can make the roof survive it — wider ice-and-water membrane than the 900 mm Code minimum, particularly on shallow-pitch runs with deep overhangs — but the cause is insulation and ventilation. Fixing the roof without fixing the attic treats the symptom.
What does eavestrough cost, and are gutter guards worth it?
Five-inch aluminium runs about $8 to $15 per linear foot installed, six-inch oversized about $10 to $18, so most houses land between $960 and $2,700. Gutter guards are $14 to $32 per linear foot for micro-mesh, which is $1,500 to $5,000 on a medium house depending on the vendor. On a treed lot where cleaning means putting a ladder against a two-storey eave twice a year, guards make a straightforward case. On an open lot with easy access they are more marginal.
Why do rural roofing quotes come in higher than suburban ones?
Access and geometry, mostly. A 100 to 300 foot driveway can mean the dump trailer and the boom truck cannot stage beside the house, so debris gets moved further by hand or a boom reaches over landscaping — either way it is labour. And estate houses tend to carry more hips, valleys, dormers and low-slope tie-ins per square of field shingle, which is more flashing and more detail work. What is not true is that rural roofs fail faster or that insurers price them differently.
Sources for the figures and rules on this page
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