
Licensed & Insured · Serving the Greater Toronto Area


GTA Underpinning Specialists
Licensed & Insured
Serving the Greater Toronto Area
That dark, cramped basement could be a legal apartment or a proper living space. Book a free consultation to find out what's possible.
75+
Basements lowered
8ft
Typical ceiling height
4.8★
Google rating
Scroll to explore
15% off the entire installation — book before Friday, June 5
Why Underpin
Rental income from a basement apartment can cover a significant portion of your mortgage.
Transform a cramped storage area into a real family room, home office, or guest suite.
A properly finished, full-height basement adds substantial value to your home.
Need more space? Underpinning lets you expand without moving or building an addition.
Create a Legal Apartment
Rental income from a basement apartment can cover a significant portion of your mortgage.
Usable Living Space
Transform a cramped storage area into a real family room, home office, or guest suite.
Major Value Increase
A properly finished, full-height basement adds substantial value to your home.
Stay in Your Neighborhood
Need more space? Underpinning lets you expand without moving or building an addition.
Reviews
Real feedback from homeowners across the GTA who trusted us with their projects.
★
★
★
★
★
“Fast quote, even faster turnaround. The crew respected the property and kept everything tidy.”
Alana R.
Google Review
★
★
★
★
★
“They lowered our basement by 2 feet and the whole process was smoother than I expected. Engineering handled, permits handled, clean crew. Highly recommend.”
Michael T.
Underpinning
★
★
★
★
★
“We hired Buildoreno for a full exterior refresh. The communication was clear and the quality is excellent.”
Jesse M.
Google Review
★
★
★
★
★
“Our metal roof looks incredible and we finally don't have to worry about leaks every spring. Worth every penny for the peace of mind.”
Sarah & David K.
Metal Roofing
★
★
★
★
★
“They reinforced our foundation and handled the permits. Couldn't have asked for a smoother process.”
Priya S.
Google Review
★
★
★
★
★
“Complete backyard transformation. New patio, walkways, lighting, plantings—everything. Our kids basically live outside now.”
Jennifer L.
Landscaping
★
★
★
★
★
“Our backyard looks like a resort now. Great ideas, great execution.”
Miguel T.
Google Review
★
★
★
★
★
“Our condo board hired them after two failed repairs from other companies. They found the real issue — bad drainage — and fixed it properly. No leaks since.”
Maria D.
Flat Roofing
★
★
★
★
★
“Solid workmanship and a trustworthy team. We'll be calling them back for the next phase.”
Diane K.
Google Review
★
★
★
★
★
“Emergency call on a Sunday morning for a commercial roof leak. They were there by noon and had a temporary fix in place before end of day. Full replacement done the following week.”
James H.
Flat Roofing
★
★
★
★
★
“Had our flat roof replaced with TPO after years of patching. The crew was professional, finished on time, and the new membrane has been completely leak-free through two winters. Milestone billing was a huge plus.”
Raj P.
Flat Roofing
★
★
★
★
★
“Fast quote, even faster turnaround. The crew respected the property and kept everything tidy.”
Alana R.
Google Review
★
★
★
★
★
“They lowered our basement by 2 feet and the whole process was smoother than I expected. Engineering handled, permits handled, clean crew. Highly recommend.”
Michael T.
Underpinning
★
★
★
★
★
“We hired Buildoreno for a full exterior refresh. The communication was clear and the quality is excellent.”
Jesse M.
Google Review
★
★
★
★
★
“Our metal roof looks incredible and we finally don't have to worry about leaks every spring. Worth every penny for the peace of mind.”
Sarah & David K.
Metal Roofing
★
★
★
★
★
“They reinforced our foundation and handled the permits. Couldn't have asked for a smoother process.”
Priya S.
Google Review
★
★
★
★
★
“Complete backyard transformation. New patio, walkways, lighting, plantings—everything. Our kids basically live outside now.”
Jennifer L.
Landscaping
★
★
★
★
★
“Our backyard looks like a resort now. Great ideas, great execution.”
Miguel T.
Google Review
★
★
★
★
★
“Our condo board hired them after two failed repairs from other companies. They found the real issue — bad drainage — and fixed it properly. No leaks since.”
Maria D.
Flat Roofing
★
★
★
★
★
“Solid workmanship and a trustworthy team. We'll be calling them back for the next phase.”
Diane K.
Google Review
★
★
★
★
★
“Emergency call on a Sunday morning for a commercial roof leak. They were there by noon and had a temporary fix in place before end of day. Full replacement done the following week.”
James H.
Flat Roofing
★
★
★
★
★
“Had our flat roof replaced with TPO after years of patching. The crew was professional, finished on time, and the new membrane has been completely leak-free through two winters. Milestone billing was a huge plus.”
Raj P.
Flat Roofing
4.9
Google Rating
150+
Reviews
98%
Would Recommend
Trust & Credentials
WSIB Covered
Google Verified
$5M Liability
Engineer Every Job
Common Questions
Yes—the initial consultation is free. We'll assess your basement, discuss your goals, and give you a realistic sense of cost and timeline. Full engineering drawings are a separate (paid) phase if you proceed.
It depends on your situation. Some families stay during the work; others prefer to be elsewhere. We'll discuss what makes sense for your project during the consultation.
Costs vary significantly based on the height increase needed, foundation type, and scope. Budget $150-250+ per square foot as a rough range. We'll give you a more specific estimate at the consultation.
Yes—when done properly with engineering oversight. We work with structural engineers, pull proper permits, and follow a careful sequence. We've completed 75+ projects without incident.
Free on-site assessment. No pressure.
We'll tell you if it makes sense for your home.


© 2026 Buildoreno. All rights reserved.
15% off entire installation — book before Friday, June 5
75+
Basements lowered
8ft
Typical ceiling height
4.8★
Google rating