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43853 Southdale Line, St Thomas, ON N5P 3S6
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Methods of Payment:

  • Cash
  • Cheque
For over 30 years, Ritchie’s Insulation & General Contracting has provided insulation for new and existing buildings. We serve St. Thomas and southwestern Ontario. Call for a free on-site estimate.

Improve energy efficiency in your home, office, business, or facility with insulation from Ritchie’s Insulation & General Contracting. Based in St. Thomas and serving southwestern Ontario, we install insulation for new builds, renovations, and retrofitting projects. We can also offer soundproofing and fire coating services. Our specialties include retrofitting older existing homes with exterior, non-invasive insulation applications. Call for your free estimate and be sure to ask about our energy rebate programs. more...

Opening Hours


Products and Services

  • Installation Urethane,
  • Insulation Specialists,
  • General Contracting,
  • Fire Coating,
  • Expert Advice,
  • Exterior / Non Invasive Application,
    • Agricultural,
    • Commercial,
    • Residential,
    • New Buildings,
    • Existing Buildings,
  • more...
  • less...


  • Existing Walls,
  • Existing Homes,

Languages Spoken

  • English,

Ratings & Reviews - Ritchie's Insulation & General Contracting

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    Great people, excellent work!

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    Geoffrey S

    When we bought ou...

    When we bought our house in September of 2014 we found that we had no insulation in the walls and very little in the roof. Murray Ritchie came to our house and gave us a fair and equitable quote. Although we had to wait a little for the insulation process while the wait was well worth it as we now have a comfortable draft free house.

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