Basement Renovations in Markham
Luxury basement finishing for Markham homes — free 3D design, itemized fixed pricing, lifetime warranty, and a written timeline backed by our $200-per-day on-time guarantee.
Get a Free Quote →VIEW OUR PROJECTSBasement renovation in Markham, street by street
Newer communities like Cornell, Cathedraltown, Berczy and Wismer feature tall, dry basements built for finishing, while mature streets in Unionville, Milliken and Markham Village reward the moisture-first approach our crews build into every project.
Markham is also one of the GTA's strongest rental markets, and since provincial housing changes opened the door to up to three units on most urban lots, a registered basement suite here is both legal and lucrative. Whatever your starting point, we turn that lower level into finished, livable square footage your family uses every day — and real value added to your Markham home.
What we build in Markham basements
Basement finishing
Theatres, bars, gyms and family spaces — metal studs and moisture-resistant drywall as standard, finished to match the rest of your home.
EXPLORE BASEMENT FINISHING →
Home renovations
Kitchens, bathrooms and whole-home updates for Markham families, built with the same crew and warranty as our basements.
EXPLORE HOME RENOVATIONS →
Structural & legal suites
Underpinning for ceiling height, waterproofing, and permitted separate entrances for legal Markham second suites.
EXPLORE STRUCTURAL WORK →Basement renovation permits and second-suite registration in Markham, handled for you
Markham has a two-step system: a building permit (or change-of-use permit) for the construction, and then registration of the two-unit house with the city — including a fire inspection by Markham Fire & Emergency Services. Historically Markham restricted basement apartments in many areas, but provincial changes now allow up to three units on most urban residential lots, and the city registers compliant suites. We build to Building Code and Fire Code, coordinate the fire inspection, and walk the registration through with you — so your suite is not just finished, it is registered and legal.
Drawings & permit
Prepared and filed for your Markham address
Built to Code
Building Code and Fire Code compliant construction
Fire inspection
Coordinated with Markham Fire & Emergency Services
Registration
Two-unit house registered with the city
A free 3D design of your finished basement
Walk through your basement room by room — move walls, try finishes, see your exact space — and approve every detail before construction begins.
"A phenomenal experience right from the start. We had no delays and the craftsmanship was top tier! Also the 3D renderings really help to envision the space. Highly recommend!"
SARAH BACCHUS · GTA HOMEOWNER · ✓ GOOGLE REVIEWBuilt on trust, backed in writing
A decade of basement renovations across the GTA — owner-led on every single project.
Every project, every material, every detail — warrantied for the life of the house.
Your quote includes a written timeline. If we miss it, we pay you $200 for every late day.
From our 2026 GTA Basement Cost Report — built from the signed contract values of our completed projects.
A real basement we finished in Markham
Tap to watch the walkthrough — a 40-year-old basement fully gutted and rebuilt.

