Free referral service. We connect you with independent local basement contractors. We are not a construction company.

Home / Service areas / St. Marys

Basement finishing in St. Marys

Unfinished, half-finished and partly finished basements, plus renovations, bathrooms and basement apartments in St. Marys, Ontario. Tell us about your basement and we'll pass your request to an independent contractor near you who covers St. Marys.

  • Free to use. You only pay for the work itself.
  • Contractors familiar with Town of St. Marys permits.
  • We only share your details with the company that takes your job.

Get a call about your St. Marys basement

Prefer to talk now? Call (548) 761-8214. By submitting, you agree to be contacted about this request. See our privacy notice.

Basements in St. Marys

St. Marys is known for its limestone buildings, and some of its older homes have stone foundations. Stone basements can be finished, but they need a careful approach to moisture and insulation so the walls can still dry out.

Newer homes on the edges of town have poured concrete basements that are straightforward to finish.

Permits in St. Marys

Building permits for basement work in St. Marys are issued by the Town of St. Marys. Most finishing projects that add walls, plumbing or ductwork need one, and electrical work needs an ESA permit. Read more in our permit guide.

Questions

Do I need a permit to finish a basement in St. Marys?

Usually, yes, if the work includes new walls, plumbing or changes to heating and ventilation. In St. Marys, building permits are issued by the Town of St. Marys. Electrical work also needs an ESA permit. The contractor can tell you what your project needs and usually handles the application.

Is there a basement contractor near me in St. Marys?

Yes. We pass your request to an independent contractor who covers St. Marys and the surrounding area, including rural properties.

How much will my basement cost?

It depends on the size, layout, finish level and whether you're adding a bathroom. A contractor needs to see the space. Our cost guide explains what changes the price.

Can you finish a basement that was started and never completed?

Yes. Whether a project in your St. Marys home stalled partway or only part of the basement was ever finished, the contractor checks the existing work, keeps what's sound and finishes the rest.

How long does it take?

A typical basement takes several weeks from framing to final paint, plus time for permits and inspections. A full apartment takes longer. You'll get a schedule with your quote.

Call (548) 761-8214