Can I add a legal basement apartment in Markham?

Markham permits additional residential units in most detached, semi-detached and townhouse dwellings, subject to a building permit and registration with the City. We design and build to those requirements.

Do interior repairs in a heritage district need a heritage permit?

Usually not, when the work is inside and does not change the exterior. We confirm with the City before starting.

A fridge water line leaked under my hardwood. What gets replaced?

Typically the affected hardwood and subfloor, the base cabinets that got wet, and the basement ceiling below. Because hardwood runs continuously, insurers often approve replacing or refinishing the connected area.

Service area

General contractor in Markham

Rebuild Pro Contracting rebuilds and renovates home interiors across Markham, including Unionville, Cornell, Milliken and Markham Village. Our work ranges from heritage-area houses that need careful matching to 2000s subdivision homes with finished basements.

Get a quote (647) 478-1394

Last updated October 5, 2026

Are there special rules for homes in Unionville or Markham Village?

Unionville, Markham Village, Thornhill and Buttonville each have a heritage conservation district. Exterior changes to homes in those districts need a heritage permit from the City of Markham. Interior rebuilds generally do not, but the houses themselves call for more care: plaster walls, wide baseboards and deep casings that are not stocked anywhere, and framing that has settled over a century.

We have trim profiles custom-milled where needed and repair plaster rather than replacing whole walls with drywall when the original can be kept.

What is different about rebuilding in Cornell and newer Markham communities?

Cornell and the communities built since the late 1990s have many townhouses and laneway homes with detached garages and finished basements. Shared walls between townhouses are fire separations and sound barriers, so any drywall we remove on them is replaced with the same fire-rated assembly. Homes from 1995 to 2007 may also have Kitec plumbing.

What work do we do most often in Markham?

Who issues building permits in Markham?

Building permits are issued by the City of Markham Building Standards Department. Heritage permits are reviewed by Heritage Section staff.

Which Markham neighbourhoods do we serve?

All of Markham, including Unionville, Markham Village, Cornell, Milliken, Berczy Village, Greensborough, Wismer Commons and Angus Glen.

Markham: frequently asked questions

Can I add a legal basement apartment in Markham?: Markham permits additional residential units in most detached, semi-detached and townhouse dwellings, subject to a building permit and registration with the City. We design and build to those requirements.
Do interior repairs in a heritage district need a heritage permit?: Usually not, when the work is inside and does not change the exterior. We confirm with the City before starting.
A fridge water line leaked under my hardwood. What gets replaced?: Typically the affected hardwood and subfloor, the base cabinets that got wet, and the basement ceiling below. Because hardwood runs continuously, insurers often approve replacing or refinishing the connected area.

Nearby service areas

Ready to get your home back to normal?

Tell us what happened or what you want built. We reply with next steps within one business day.

Get a quote (647) 478-1394