
Cornerstone Construction Inc.
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Family owned and operated.
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Over 35 years experience.
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Quality workmanship and high standards.
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Specializing in foundation repairs and basement waterproofing.
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Fully insured and WSIB compliant.
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25 year warranty.
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Offering free estimates.
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Servicing Uxbridge, Stouffville, Markham, Newmarket, Aurora and surrounding areas.