--- title: "Flat Roof Repair in Sudbury, ON | flat-roof-repair.ca" description: "Flat roof leak repair, replacement and maintenance in Sudbury, Ontario, for houses, condos and commercial buildings. Built for heavy snow loads." url: https://flat-roof-repair.ca/locations/sudbury/ last_updated: 2026-10-23 --- # Flat roof repair in Sudbury We repair, replace and maintain flat roofs in Sudbury: houses, garages and additions, condo and apartment buildings, plazas, offices and warehouses. Send photos and a few details for a written quote. ## Flat roof services in Sudbury Much of Sudbury's housing is older, and older houses often have flat roofs over rear additions, porches and garages. Typical signs are a stain on the kitchen ceiling, water at a skylight or a roof with several worn layers. Sudbury has one of the five heaviest design snow loads of the 40 cities on this site, so drains and parapet flashings get extra attention. We find where the water gets in, fix that spot and tell you how much life the rest of the roof has. When a roof is past repair, we [replace it](https://flat-roof-repair.ca/services/flat-roof-replacement/) with EPDM, TPO, PVC or modified bitumen, and fix the [drainage](https://flat-roof-repair.ca/services/roof-drains-and-scuppers/) so water does not sit on the new membrane. Owners and property managers also book [inspections](https://flat-roof-repair.ca/services/flat-roof-inspection/) and [maintenance visits](https://flat-roof-repair.ca/services/flat-roof-maintenance/). ## Mining towns that became Greater Sudbury Sudbury began in 1883 when the Canadian Pacific Railway crew found nickel-copper ore, and Inco and Falconbridge shaped the 20th century. Greater Sudbury was formed in 2001 by merging the former region's towns. Communities include Copper Cliff, Coniston, Falconbridge and the Franco-Ontarian Moulin-à-Fleur. Retail grew at New Sudbury Centre and along the Kingsway. Census data shows about 67% of homes were built before 1981. The older mining communities have small houses where flat roofs over additions and entrance porches are common, and winter freeze-thaw is hard on seams and flashings. Downtown holds commercial blocks of the early twentieth century. The Kingsway power centres and New Sudbury Centre are low-slope retail roofs, while Health Sciences North and the university add institutional ones. Mining supply shops and industrial buildings across the city have large low-slope or low-pitched roofs. ## Sudbury weather and your flat roof Ontario's Building Code sets the climate values used to design roofs in each municipality. They show what a flat roof in Sudbury has to handle. - **undefined** - **undefined** - **undefined** - **undefined** - **undefined** - **undefined** - **undefined** ## Homes and buildings in Sudbury The age and type of buildings shape the flat roofs we see. These are the 2021 Census figures for Sudbury. - **undefined** - **undefined** - **undefined** - **undefined** - **undefined** - **undefined** ## Sudbury: facts for property owners - Population of Sudbury: 166,004 (2021 Census). ([source](https://en.wikipedia.org/wiki/List_of_municipalities_in_Ontario)) > In Sudbury, check and clear roof drains in late fall, before the first heavy snow. If you clear snow from a flat roof, leave a few centimetres on the membrane so shovels do not cut it. ## Starting prices in Sudbury | Item | Starting price | |---|---| | [Small leak repair (patch, seam or puncture)](https://flat-roof-repair.ca/services/flat-roof-leak-repair/) | from $350 per repair | | [Small flat roof replacement (garage, porch or addition)](https://flat-roof-repair.ca/property-types/garages-and-additions/) | from $4,000 per roof | | [House flat roof replacement (about 1,000 sq ft)](https://flat-roof-repair.ca/property-types/houses/) | from $8,000 per roof | Starting prices in CAD before 13% HST, based on typical Ontario contractor rates (mostly Toronto and the GTA). The final price depends on roof size, access, the layers to remove, the membrane, drains and flashings, and is confirmed in your written quote. See all [prices](https://flat-roof-repair.ca/pricing/). ## Roofs we work on in Sudbury - [Garages and additions](https://flat-roof-repair.ca/property-types/garages-and-additions/) - [Apartment buildings](https://flat-roof-repair.ca/property-types/apartment-buildings/) - [Houses](https://flat-roof-repair.ca/property-types/houses/) - [Townhouses and row houses](https://flat-roof-repair.ca/property-types/townhouses-and-row-houses/) - [All property types](https://flat-roof-repair.ca/property-types/) ## Nearby cities - [North Bay](https://flat-roof-repair.ca/locations/north-bay/) - [Sault Ste. Marie](https://flat-roof-repair.ca/locations/sault-ste-marie/) - [Orillia](https://flat-roof-repair.ca/locations/orillia/) - [Northern Ontario](https://flat-roof-repair.ca/locations/northern-ontario/) ## Flat roofs in Sudbury: questions **How much does flat roof repair cost in Sudbury?** A small leak repair starts from $350 per repair and a new house flat roof starts from $8,000 per roof. Prices in Sudbury depend on access, layers to remove and the membrane. See [pricing](https://flat-roof-repair.ca/pricing/). **Should I clear snow off a flat roof in Sudbury?** Only if the snow is deep and wet, drifts are building against walls or units, or the building shows signs of stress. Use a plastic shovel, leave a layer on the membrane and never use picks or salt. If in doubt, ask a professional. **Do I need a permit to replace a flat roof in Sudbury?** Check with the Sudbury building department. Replacing the membrane alone is often treated differently from structural work, a new rooftop deck or added weight. See [re-roofing permits in Ontario](https://flat-roof-repair.ca/guides/re-roofing-permits-ontario/). **My Sudbury house is older. Can the flat roof go on over the old one?** Sometimes one new layer can go over one old layer, but on older houses we often find two or three layers already, wet insulation or soft deck boards. Then a full tear-off is the safer choice. See [repair or replace](https://flat-roof-repair.ca/guides/repair-or-replace-flat-roof/). **Do you also work near Sudbury?** Yes, including North Bay, Sault Ste. Marie, Orillia and the rest of northern Ontario. See [Northern Ontario](https://flat-roof-repair.ca/locations/northern-ontario/). ## Related - [Flat roof repair in Northern Ontario](https://flat-roof-repair.ca/locations/northern-ontario/) - [Flat roof leak repair](https://flat-roof-repair.ca/services/flat-roof-leak-repair/) - [Flat roof replacement](https://flat-roof-repair.ca/services/flat-roof-replacement/) - [Flat roof in winter](https://flat-roof-repair.ca/guides/flat-roof-in-winter/) --- Get a quote: https://flat-roof-repair.ca/request-a-quote/ · Email: info@flat-roof-repair.ca