In short
- Barrhaven had 103,234 residents in the 2021 Census and sits about 17 km southwest of downtown, per Wikipedia.
- Most streets are townhouses with some larger detached houses, so row roofs and shared rooflines come up on many calls.
- HomeStars Ottawa figures: asphalt replacement averages $7,200, repair $1,800.
- CAA-Quebec names poor attic and soffit ventilation as the usual cause of ice at roof edges.
Typical prices in Ottawa
| Job | Typical range | Notes |
|---|---|---|
| Asphalt shingle roof, Ottawa average | $7,200 (reported $4,000 to $20,500) | HomeStars Ottawa guide |
| Roof repair, Ottawa average | $1,800 (reported $300 to $10,000) | HomeStars Ottawa guide |
| Metal roof, Ottawa average | $22,500 (reported $7,500 to $55,000+) | HomeStars Ottawa guide |
| A Barrhaven townhouse or house, exact price | Set after the company sees the roof | Slope count, layers and access change the figure |
Sources. Prices: HomeStars, Roofing Cost Guide For Ottawa (updated 21.08.2026 on the page), seen 29.10.2026. Permit rule: City of Ottawa, projects not requiring building permits, seen 29.10.2026. Contract rules: Ontario, guide for home renovation and roofing businesses, seen 29.10.2026. Ice at roof edges: CAA-Quebec, ice damming on roofs (updated 02.02.2026, citing CMHC), seen 29.10.2026. Barrhaven history, population, boundaries, neighbourhoods and character: Wikipedia, Barrhaven, seen 29.10.2026.
A suburb built in waves
Wikipedia says modern Barrhaven started in the 1960s with developer Mel Barr, and that expansion was approved in 1977 after plans moved away from Carlsbad Springs because of Leda clay concerns. Growth picked up after a provincial cabinet decision in 1979. The same article calls the suburb uniform: most streets are townhouses, a few have larger detached houses, and older streets curve with no grid.
That uniformity matters on the roof. Streets built in a short window tend to carry roofs of a similar age, so the age of your neighbour’s roof can be a guide to yours. A request that names the subdivision, such as Longfields, Chapman Mills, Davidson Heights or Stonebridge, gives the company an age bracket.
Townhouse rows and shared roofs
A row of townhouses has a long roofline, a ridge that runs the length of the block and a party wall between units. Shingles and flashing run across that line. Repair on your unit is usually a local job. A full replacement means the company has to decide where the new roof ends and what it does at the neighbour’s edge.
Write the unit type in the request: freehold, condo corporation or a stacked unit. Under a corporation the board books roof work. Freehold owners can settle the plan with the neighbour and ask the company to quote both options. See roof repair for the common repairs and roof replacement for the full job.
Venting, ice and the winter edge
CAA-Quebec, updated on 2 February 2026, credits poor attic ventilation and inadequate soffit ventilation for ice formation at the roof edge. Heat escapes into the roof, melts the snow, and the water refreezes at the cold eave. The article lists wet shingles, damaged insulation, stained ceilings and bent eavestroughs among the results.
If your Barrhaven roof grows icicles every January, a new set of shingles alone may not change that. Ask the company who calls to look at the soffit vents, the attic air path and the insulation. Ice dams covers the signs and what the company can do.
What a Barrhaven roof costs
HomeStars’ Ottawa price page, last updated 21.08.2026, gives an average asphalt replacement of $7,200, with reports from $4,000 to $20,500, and an average repair of $1,800. Metal averages $22,500. A simple two-slope roof costs less than a large detached house with dormers and valleys. The company prices the job after seeing it.
Permits and contracts
A Barrhaven re-shingle is permit-exempt on the City’s list; designated heritage houses lose that exemption. Wikipedia mentions one heritage house near the Rideau River. Any structural work is covered in roofing permits in Ottawa.
When neighbours on one row compare quotes, the same Ontario rules cover each contract. Ontario wants the deal in writing once it passes $50, holds the bill to 10% over a written estimate without a signed change, and advises a deposit of a tenth or less. A contract signed on your doorstep can be cancelled within 10 days.
Who you are dealing with
This desk only routes the form. A single independent roofer reads your Barrhaven street and photos, books the visit and puts its own name on the quote and the contract. The crew on your roof works for that firm. Next door to Barrhaven: Nepean.
Questions to ask the company
- Which part of Barrhaven do you cover, and does it reach Half Moon Bay?
- My roof is part of a townhouse row. How do you handle the line where it meets the neighbour's?
- Does the price include new vents, flashing and drip edge, or only shingles?
- What do you do if you find soft deck boards after the tear-off, and how is that priced?
- Which payment schedule do you use, and how much is the deposit?
Have this ready for the call
- Your street and neighbourhood, such as Longfields, Chapman Mills, Stonebridge or Half Moon Bay.
- Whether the house is freehold, in a condo corporation, or has a shared roofline with a neighbour.
- The age of the roof, if you know it, and the date you bought the house.
- Photos from the ground of each slope, the eaves, and any stain on a ceiling indoors.
- Any builder or previous-owner paperwork on the roof.
Questions people ask
Why do neighbouring roofs in Barrhaven fail around the same time?
Wikipedia describes Barrhaven as built quickly with a uniform feel, so many blocks of houses went up in a short window. Roofs on such a block are often a similar age, so when one needs work the neighbours’ roofs may too.
My townhouse shares a roof with the next unit. Can I replace only my half?
It depends on the roof’s design and your neighbour. Shingles meet across the party wall, so the company has to look at where the work stops. Talk to your neighbour before you request a quote and write the outcome in the form.
Which part of Barrhaven is Old Barrhaven, and where does Half Moon Bay start?
Wikipedia places Old Barrhaven between Cedarview and Greenbank, with Longfields south to Strandherd and Half Moon Bay along Cambrian Road. Give your street and nearest main road. The company can tell you on the call if it covers your end.
My Half Moon Bay house is new. Should I call a roofer or the builder?
Start with the builder if the house is within its warranty period, and keep the dates and photos of the problem. A roofing company can still look at the roof afterwards. Ask the builder what they need before anyone else touches the shingles.
Do ice dams affect townhouses more than detached houses?
CAA-Quebec links ice at the eaves to weak attic and soffit venting on any sloped roof. A row house with a shallow attic can be as exposed as a detached house. Describe the ice in your request.
