01Historical Guide
Construction Timeline
Era-specific building methods, materials, and common issues for Canadian homes built 1900–1990. Understand what was standard practice decade by decade.
Explore guide →Canadian homes · 1900–1990
Buying an older home in Canada? Know what you’re getting into.
An evidence-led due-diligence companion for Canadian homes built 1900–1990. It sets out what is commonly associated with each era — knob-and-tube wiring, asbestos, lead paint, galvanized plumbing, insurance considerations — and what a qualified professional would need to confirm on your specific property.
Evidence notes on research pages16 hazard reference guidesNo sign-in required
Scope & limitations: This site is a general reference for Canadian homes built 1900–1990. It does not inspect, diagnose, or give legal, insurance, or professional advice. See the Methodology & Scope & Limitations and full disclaimer.
1900–1990
Years Covered
Nine decades of construction
16
Hazard Guides
One reference page each
3
Free Tools
Risk profile, worksheet, checklist
Canada
Regional Focus
Provincial codes & climate
Working collection · 01–05
Free tools, no sign-in
Everything here runs in your browser. Nothing is stored, nothing is emailed to you, and no tool claims to tell you what is actually inside a specific house.
01.
Home Age Risk Profile
Enter the era, province, property type, and what records exist. Get prioritised questions to investigate — not a diagnosis.
Build a question list02.Buyer due diligence
What to confirm before the offer, during the condition period, and with your insurer and lender.
Open the buyer path03.Seller preparation
Assemble documentation, permit history, and service records before your home is photographed.
Open the seller path04.Renovation worksheet
Rank work by impact and assessment status using your own written quotes. This site publishes no cost figures.
Open the worksheet05.Methodology & sources
The Canadian primary sources behind this material, the evidence levels used, and the limits of what era data can tell you.
Read the methodologyCommon questions
Frequently Asked Questions About Old Canadian Houses
Common questions from buyers and owners of older Canadian homes, answered with era context and pointers to the professionals who can confirm anything on a specific property.
Have a question not answered here? Browse our full inspection guide or explore all resources.
Quick Action Dashboard
Fast access to essential tools and guidance for your old house inspection and renovation journey.
Workspace 01
Create Your Property Profile
Record what you know about the property so you can track which items still need written confirmation from a qualified professional.
Property Profile Dashboard
Create your property profile to get personalized recommendations, track your progress, and receive targeted guidance for your old house.
Workspace 02
Discover Your Home's Era
See what was commonly used in Canadian construction during your home's build era, and what a qualified professional would need to verify today.
Home Age Calculator
Disclaimer: This tool provides general guidance based on common construction practices. Results may not apply to your specific home. Always consult qualified professionals for accurate assessments.
Complete Old House Resource Suite
Everything you need to safely buy, inspect, renovate, and maintain a vintage Canadian home built before 1990 — including detailed guidance on hazardous materials, outdated systems, and when to call a professional.
02Safety First
Inspection Guide
Comprehensive inspection checklists covering old house safety — from knob-and-tube wiring and asbestos to foundation cracks and outdated panels.
Explore guide →03Planning Tool
Renovation Guide
Plan and prioritize renovations for your older home. Covers permits, aluminum wiring remediation, lead paint encapsulation, and more.
Explore guide →04Primary sources
Reference Library
Primary-source Canadian references: codes, safety authorities, heritage programs and provincial permit contacts, organised by topic.
Explore guide →Evidence sequence
How to handle something you notice
This site does not publish risk scores, diagnoses, or maintenance frequencies. Use this sequence instead, and record the outcome in writing.
- Step 1 — Observation
Write down what you actually saw, where, and when. Keep it descriptive rather than diagnostic.
- Step 2 — Do not disturb
Leave suspect material undisturbed. If there is any sign of immediate danger, stop and leave the area.
- Step 3 — Contact
Contact your local emergency service or utility for anything urgent, otherwise a professional licensed in your province for the relevant trade or assessment.
- Step 4 — Verify in writing
Ask for the finding, the recommended scope, and any permit responsibility in a written report or quote.
Continue the research
Start Your Old House Journey Today
Continue with the construction timeline, evidence-led workspaces and primary Canadian sources for the questions relevant to your property.
No sign-up
Every guide, workspace and source on OldHouses.ca is open. There is no account, no email gate and no download form. Notes you make in the workspaces stay in your browser.