Erwin Construction Custom Building & Design



Our Services


Let us take your design and build your dreams.


Building to your plan with expertise, experience and lasting quality.

Re-Create & Renovate

Maximizing space and equity for your modern design and renovation upgrade.

Specialized Wood Finishes

You will benefit from the custom one of a kind woodworking finish detail as it is one of the specialties of our company.

“Building Your Trust With Our Quality Work”

No Project Too Big Or Too Small

Erwin Construction General Contracting serves the Muskokas, Kawartha Lakes, Simcoe County, and surrounding regions.

Porter as managing Owner is diligent with respect to ensuring the team’s high quality of work expectations are met on every project regardless of size or complexity.

Attention to detail specialized woodwork sets your renovation and/or new build apart in the neighborhood.


Years Established

Completed Projects

Latest Projects

Mount St. Louis Addition

Haliburton Project

Shop and Wood Shed Project

We’ve Been Building For Over 10 Years

Capable in What We Do

  • Carefully build to specs and plans to minimize deficiencies and hold-ups for inspections and milestone deadlines.
  • Foster and encourage positive communication and provide specific updates wherever requested.
  • Conscious of our overall workmanship and take pride in specialized one of a kind wood features as your dream is realized.

Decreasing Risk and Liability

  • WSIB Insured
  • MOL, ESA, WSIB Compliant and Registered

Call Us for a Quote:


Client Testimonials

I have used Erwin construction both at my residence and my retail store. Porter and crew have gone above and beyond each and every time I use them. From total... read more

triple B Avatar triple B
October 22, 2020

Very professional company, good quality work at a fair price. It was a pleasure dealing with Porter and all Of his guys, I would highly recommend to anyone looking for a... read more

JD Carrick Avatar JD Carrick
October 22, 2020

Erwin Construction is a great contractor company. They provide professional services and expertise advice on renovations your may need. They are well known for their high quality work at a... read more

Jenna Mei Avatar Jenna Mei
October 22, 2020

Contact Us

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1712 Mount Stephen Rd., Coldwater, Ontario