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What we do in Longueuil
Altitude Services is an excavation and landscaping contractor based in Laval, serving Longueuil and its sectors: Old Longueuil, Saint-Hubert, Greenfield Park and LeMoyne. The owner, Jonathan, comes to see your property himself, writes the quote and runs the machine on the day of the work.
- Drainage and French drains: grade correction, French drain down to the footing, surface drains, dry wells where the soil allows.
- Excavation and grading: trenching, compacted backfill and fill, stump removal, site preparation.
- Pavers: new installation and relevelling of sunken pavers.
- Site preparation with the Harley Rake: crust broken, rocks removed, finish ready for seed or sod.
- Mechanized sweeping for business and condo parking lots.
The ground in Longueuil
Longueuil is built on the clay of the former Champlain Sea. This clay swells when wet and shrinks in drought, which makes yards and driveways move.
Whatever the sector, the method is the same: we first look at where the water can exit, we measure the yard (3D survey when the slope is at stake), and we give you a line-by-line quote. No vague package, no surprise at the end.



How it works
- You text us photos at 514 775-1988, or request a callback below. Often we can already tell you whether it is worth a visit.
- Jonathan comes to your place in Longueuil, looks at the yard with you and sends a written quote, normally within 24 hours.
- We do the work with our own machinery, ground protection mats, and leave you a clean yard. Work guaranteed 1 year in writing.
Your price in 30 seconds
For grading, sod, pavers or a drain, our online estimator gives you an honest range right away. It is the same calculation in Longueuil as in Laval.
Frequently asked in Longueuil
Do you really travel to Longueuil?
Yes. Our base is in Sainte-Dorothée (Laval), about 40 minutes from Longueuil. It is a bit further for us, so we group jobs in the area the same week and travel costs are shown separately and clearly in the quote.
Do I need a permit from the City of Longueuil?
For grading, sod, a drain or pavers on your own property, usually not. A retaining wall, a driveway widening or work touching the street right-of-way may require one. We tell you in the quote.
How soon can you come?
An assessment visit normally happens within the week. For the work itself it depends on the season: a few days in spring and fall for urgent drainage, two to three weeks in mid summer. We give you a real date.
Also nearby
We also serve: Brossard, Boucherville, Saint-Bruno-de-Montarville, La Prairie, Candiac, Châteauguay. See every town in Greater Montreal.
