Concrete foundations across Toronto and the GTA
WSIB cleared|$5M liability insured
WSIB cleared|$5M liability insured
Concrete foundation and structural experts
Priced in 48 hours. Poured on the date we promise.
For new homes, additions and garden suites. Our own forms and crews, from footings to finished slab on one schedule.
Takes 30 seconds. Upload your drawings for a faster price. We reply the same day.
Prefer to talk? Call (416) 785-7838
No waiting on rental stock or another crew
The date we give you is the date we pour
Clearance certificate on request
$5 million liability insurance on every job
One contractor for the structure of your home, from the footing up: concrete foundation work, slabs, underpinning and framing.
Strip, pad and stepped footings and pier foundations, inspected before every pour.
Poured concrete foundation walls for new homes, additions and garden suites.
Suspended garage slabs, slabs on grade and basement floors in concrete.
Underpin the foundation to lower your basement or add a walkout. Engineered and permitted.
Floors, walls, roofs, engineered beams and posts for custom homes, second storey additions, garden suites and laneway houses.
Looking for a contractor for foundation work who shows up on the day? Most foundation jobs slip because the forms or the crew aren’t ready. As concrete foundation contractors with our own forming system and our own crews, we set the pour date and we keep it.
We also do the framing. The hand-off from foundation to framing doesn’t wait on a second company.
How we work
Two kinds of job, one standard. Every stage is checked against the drawings, and every inspection is booked before the next pour.
Foundation to framing
Engineered and permitted
For homeowners, builders and designers
Upload your drawings and tell us when excavation is done. We’ll send a priced breakdown of your footings, foundation walls and slab, plus the first date our forms and crew are free, within 48 hours.
No cost, no obligation. No drawings yet? We can price from a site visit.
Need a foundation subcontractor in Toronto and the GTA? Send us your drawings and the dates you need. Footings, walls, slabs and framing priced as one package, on one crew schedule, with WSIB clearance and insurance certificates on request.
A residential concrete contractor builds the structural concrete of a house: footings, foundation walls, garage and basement slabs, and underpinning. GSS does all of that across Toronto and the GTA, and frames the house too.
Toronto and the GTA: North York, Etobicoke, Scarborough, Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Oakville, Burlington, Hamilton, Pickering, Ajax, Whitby, Oshawa, Newmarket, Aurora, Barrie and Orillia.
Yes. The City requires a building permit to underpin or lower a basement, and to add a below-grade entrance. We don’t dig until it is issued.
Often, yes. The City requires a professional engineer to design and review the work when the new footing goes below your neighbour’s footing, when the unsupported height is over 1.2 metres, or when the soil is clay or silt. In every case the City wants engineer reports at the start and end of the work.
Yes. We pour the footings, walls and slab, then frame the house or addition. One company, one schedule.
A structural concrete slab that spans over a room below, usually a cold cellar or basement space under the garage. It is formed, shored and reinforced to the engineer’s design, unlike a slab on grade that sits on compacted ground.
Yes. A walkout means cutting the foundation, new footings and walls around the opening, and concrete stairs or a landing. In Toronto it falls under the underpinning permit, and we build it as one job.
Yes. We frame laneway houses, garden suites and second storey additions, and we can pour their footings and foundation walls too.
Our work is new construction and underpinning, not repairs. If your foundation needs to be lowered or rebuilt, that is where we come in.
Usually within 1 to 2 weeks of a signed quote. Call us and we’ll give you a real date.
Send your drawings today. We reply the same day, and you get a priced breakdown and a pour date within 48 hours.
