Common problems in single-family houses from the 2000s and 2010s in Outaouais

Based on 23 inspections done by 4 inspectors. Last updated .

Key figures

  • Siding (Wood, Vinyl, Fiber Cement): a problem noted in 96% of inspections of single-family houses from the 2000s and 2010s in Outaouais.
  • Exterior Windows: a problem noted in 96% of inspections of single-family houses from the 2000s and 2010s in Outaouais.
  • Balconies, Decks & Terraces: a problem noted in 91% of inspections of single-family houses from the 2000s and 2010s in Outaouais.

What stands out compared with Québec

Compared with all inspections in Québec, these come up more often here: garage Door (57%, versus 15% across Québec), smoke Detectors (74%, versus 36% across Québec) and exterior Windows (96%, versus 65% across Québec). On average, the inspector notes problems in 25 parts of the house, versus 21 across Québec.

Component by component

The percentage is the share of inspections where the inspector noted at least one problem in that part of the house. For example, 96% for “Siding (Wood, Vinyl, Fiber Cement)” means 96 inspections out of 100. Open a line to see what is found there most often, and what to do.

  1. Siding (Wood, Vinyl, Fiber Cement)96%

    serious in 27% of cases

    What is found and what to do

    What inspectors note most often

    • Cladding too close to the ground
    • Cracked mortar and blocked weep holes (brick)
    • Exposed base of the walls (sill plate, rim joist)

    What you can do

    During the visit, walk around the house and look at the bottom of the walls: that is where water and moisture do the most damage.

  2. Exterior Windows96%

    serious in 9% of cases

    What is found and what to do

    What inspectors note most often

    • Not enough clearance under the windows
    • Fogged sealed units (failed seal)
    • Windows at end of life, worn weatherstripping

    What you can do

    Ask how old the windows are. A fogged sealed unit can be replaced on its own, without changing the whole window.

  3. Balconies, Decks & Terraces91%

    serious in 62% of cases

    What is found and what to do

    What inspectors note most often

    • Missing, low or unstable guardrail
    • Unprotected posts and supports
    • Wood needing upkeep, missing joist hangers

    What you can do

    First a safety issue, especially with children. A guardrail is a quick fix; a rotten balcony structure costs much more.

  4. Flashing & Solins91%

    serious in 10% of cases

    What is found and what to do

    What inspectors note most often

    • Dry, cracked or missing caulking
    • Sealant to redo around windows and doors
    • Poorly installed flashing

    What you can do

    Worn caulking is routine, inexpensive upkeep. Letting it go lets water into the walls.

  5. Foundation91%

    serious in 38% of cases

    What is found and what to do

    What inspectors note most often

    • Cracks in the foundation walls
    • Missing or damaged parging
    • Efflorescence (white deposits) and exposed form ties

    What you can do

    Most cracks are harmless shrinkage cracks. Ones that widen, run in steps or let water in need a specialist’s opinion.

  6. Electrical Outlets & Receptacles78%

    serious in 50% of cases

    What is found and what to do

    What inspectors note most often

    • Outlets near water without GFCI protection
    • Missing cover plates
    • Exposed wires or open junction boxes
    • Reversed polarity

    What you can do

    Usually small fixes, but they are about safety. Get a quote from a master electrician before you sign.

  7. Gutters & Downspouts78%

    serious in 11% of cases

    What is found and what to do

    What inspectors note most often

    • Downspouts that drain too close to the foundation
    • Gutters clogged with debris
    • Missing or damaged gutters

    What you can do

    A small job with a big stake: roof water dropped at the foot of the wall often ends up in the basement. Downspout extensions cost little.

  8. Smoke Detectors74%

    serious in 71% of cases

    What is found and what to do

    What inspectors note most often

    • Missing carbon monoxide alarm
    • Missing or outdated smoke alarms
    • Not enough alarms for the house

    What you can do

    A smoke alarm should be replaced every 10 years. It is the cheapest fix on the list: do it when you move in.

  9. Grading & Drainage70%

    serious in 19% of cases

    What is found and what to do

    What inspectors note most often

    • Ground sloping toward the house
    • Downspouts to extend
    • Foundation drain not checked or doubtful

    What you can do

    The ground should carry water away from the house. If the foundation drain is old, ask for a camera inspection: it is one of the most expensive jobs on a house.

  10. Attic Insulation65%

    serious in 7% of cases

    What is found and what to do

    What inspectors note most often

    • Insufficient insulation
    • Uninsulated ventilation ducts
    • Poorly insulated or sealed attic hatch

    What you can do

    Too little insulation shows on the heating bill and can cause ice dams. Adding attic insulation is one of the most cost-effective upgrades.

  11. Bathroom Ventilation65%

    serious in 13% of cases

    What is found and what to do

    What inspectors note most often

    • Missing, weak or faulty fan
    • Fan not vented outside
    • Duct emptying into the attic

    What you can do

    Without good ventilation, shower moisture ends up as mould. Turn the fan on during the visit.

  12. Main Electrical Panel57%

    serious in 31% of cases

    What is found and what to do

    What inspectors note most often

    • Grounding not found or not visible
    • Missing panel door or cover plate
    • Poorly anchored service mast

    What you can do

    Ask for the age and make of the panel: some older models are refused by insurers. An electrician can confirm the grounding.

  13. Insects & Pests57%

    serious in 8% of cases

    What is found and what to do

    What inspectors note most often

    • Ants
    • Rodents
    • Signs of pests in the attic or basement

    What you can do

    Carpenter ants in the wood or active rodents call for an exterminator before you move in.

  14. Garage Door57%

    serious in 8% of cases

    What is found and what to do

    What inspectors note most often

    • Worn door
    • Safety reverse not working
    • Damaged weatherstripping

    What you can do

    Test the safety reverse: the door must go back up when it touches an obstacle.

  15. Interior Stairs & Railings57%

    serious in 85% of cases

    What is found and what to do

    What inspectors note most often

    • Missing, broken or unsuitable handrail
    • Missing or incomplete guardrail
    • Uneven step heights

    What you can do

    Simple fixes, but important to prevent falls.

  16. Interior Piping & Materials57%

    serious in 23% of cases

    What is found and what to do

    What inspectors note most often

    • Worn or missing seals
    • No water hammer arrestors
    • Leaks

    What you can do

    Look under the sinks during the visit. A small leak that lasts damages cabinets and floors.

  17. Pitched Roof Covering57%

    serious in 8% of cases

    What is found and what to do

    What inspectors note most often

    • Worn or damaged shingles
    • Ponding water, poorly sealed seams
    • Missing vent caps

    What you can do

    Ask how old the roof is. An asphalt shingle roof usually lasts 15 to 25 years: if it is near the end, plan for it in your budget.

  18. Water Supply (Main Entry)52%

    serious in 33% of cases

    What is found and what to do

    What inspectors note most often

    • Main water entry or shut-off not found
    • Pipes exposed to freezing
    • Low water flow

    What you can do

    Know where the main shut-off is from day one: in a leak, it is what saves the basement. In the country, ask for the well and septic records.

  19. Soffits48%
    What is found and what to do

    What inspectors note most often

    • Exhaust fans venting into the soffits
    • Missing or damaged sections
    • Soffit venting not verifiable

    What you can do

    Humid bathroom air should go outside, not into the soffit, where it gets drawn back into the attic.

  20. Bathroom Plumbing & Fixtures48%

    serious in 9% of cases

    What is found and what to do

    What inspectors note most often

    • Loose or rocking toilet
    • Worn shower or tub seals
    • Loose or leaking fixtures

    What you can do

    Look at the base of the shower and around the toilet: a worn seal lets water into the floor long before it shows.

  21. Garage Structure48%

    serious in 45% of cases

    What is found and what to do

    What inspectors note most often

    • Cracked or heaving floor
    • Cluttered garage, so a limited inspection
    • Water stains, worn door seal

    What you can do

    Ask for the garage to be cleared before the inspection: what the inspector cannot see, they cannot assess.

  22. Dryer Vent48%

    serious in 9% of cases

    What is found and what to do

    What inspectors note most often

    • Clogged dryer duct
    • Plastic duct, a fire risk
    • Damaged exterior flap

    What you can do

    A lint-filled duct is a common cause of house fires. Replace plastic with metal and clean the duct every year.

  23. Interior Windows48%

    serious in 9% of cases

    What is found and what to do

    What inspectors note most often

    • Missing opening limiter (child safety)
    • Faulty opening mechanism
    • Stains or mould at the bottom of the windows

    What you can do

    Open and close a few windows during the visit. Stains at the bottom of the frame often point to condensation.

  24. Drainage / Waste System43%

    serious in 10% of cases

    What is found and what to do

    What inspectors note most often

    • Backwater valve not found
    • Ageing cast iron drain pipes
    • Cleanout not located

    What you can do

    The backwater valve keeps sewage from backing up into the basement. Know where it is and service it every year.

  25. Roof Structure43%

    serious in 20% of cases

    What is found and what to do

    What inspectors note most often

    • Stains or water marks on the framing
    • Condensation and signs of mould in the attic
    • Damaged framing members

    What you can do

    Stains in the attic can be old or active. Ask whether a leak was repaired, and have the attic ventilation checked.

These are frequencies in similar homes, not a diagnosis of yours. Only an inspection can tell you what is really there. How I count.

See also

91% of inspections of single-family houses from the 2000s and 2010s in Outaouais turn up at least one serious problem.

A hazard, something urgent, or work for a specialist. And on average, the inspector notes problems in 25 parts of the house.

Better to know before you sign.

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These figures are for information only. They come from real inspection reports, but they are not legal advice, a professional opinion on any specific property, or a guarantee. For a purchase decision, rely on the inspection of the home and, if needed, a notary or a lawyer.