When is an RBQ licence required for landscaping in Quebec?

One of the most common questions homeowners and contractors ask is whether landscaping work in Quebec requires a licence from the Regie du batiment du Quebec (RBQ). The answer isn't a simple yes or no. It depends on the type of work, whether anything connects to the building, and what equipment is involved.

The general rule: most basic landscaping doesn't need a licence

According to the RBQ's page on work not requiring a licence, many common outdoor tasks are exempt. The RBQ confirms that grass mowing, tree felling, and general site cleanup fall outside licensing requirements.

CAA-Quebec's renovation guide further clarifies that residential landscaping, such as paving a driveway, installing a fence, installing an above-ground pool, or building a shed, can generally be carried out without an RBQ licence, provided these features are not permanently attached to the main building.

Pavers: it depends on the installation

Paver work is where the line gets nuanced. According to information from the RBQ's subcategory listings:

No licence required:

• Steps made of concrete blocks and pavers that rest on a gravel base
• Paver installations that provide access to a building but are not physically attached to it
• Standard patio and walkway installations on compacted gravel

Licence may be required:

• Paver installations that are part of a larger construction sitework project involving alignment, levelling, paving, and asphalting (this falls under a specialized contractor subcategory)
• Any paver work that connects directly to the building structure

The key question is always: is this attached to the building? If your paver patio sits independently on a gravel base, no licence is needed. If it's integrated into a building foundation or structure, you're in licensed territory.

Excavation and earthworks

Excavation is one of the most commonly misunderstood areas. The RBQ lists subcategory 2.5 (Excavation and earthworks) as a licensed activity when performed as construction work for a third party.

There's a distinction worth knowing:

• Quarry rock excavation for material collection is specifically listed as not requiring a licence
• Excavator operators must hold appropriate competency certificates regardless of whether the overall project requires an RBQ licence

In practical terms, if a landscaper is bringing in a mini-excavator to grade your backyard for a patio, the operator should hold the right competency certificate from the Commission de la construction du Quebec (CCQ), even if the landscaping company doesn't need an RBQ licence for the project itself.

Retaining walls

Retaining walls sit in a grey area that often needs professional assessment. The RBQ's subcategory 2.6 (Piles and special foundations) covers soil mechanics work including retaining excavations, deadman tie-back anchors, and underpinning.

A small decorative garden wall stacked without mortar on a level surface is very different from a 4-foot retaining wall holding back a hillside. The more structural the wall, the more likely it falls under licensed work. If your retaining wall:

• Holds back significant soil pressure
• Is part of a slope stabilization project
• Requires engineered foundations or drainage systems
• Exceeds typical garden-wall heights

You should be working with a licensed contractor who holds the appropriate subcategory.

Structures attached to the building

Building attachment is the clearest trigger for an RBQ licence in landscaping contexts. According to the RBQ, any construction work done for a third party that involves structures attached to a building requires a licence.

In landscaping, this commonly applies to:

• Decks and patios bolted or screwed to the house
• Permanent pergolas connected to the building structure
• Outdoor kitchens with plumbing or electrical connections to the house
• Built-in planters or water features that are structurally integrated

A freestanding gazebo on a gravel pad? No licence needed. The same gazebo bolted to your house? Now you need a licensed contractor.

Electrical and plumbing always require a licence

Any landscaping project that involves electrical or plumbing work crosses into licensed territory, regardless of how minor the connection seems:

• Landscape lighting wired into your home's electrical panel
• Irrigation systems connected to your plumbing
• Outdoor outlets or junction boxes
• Water features with pump connections to household water

These require contractors with the appropriate electrical or plumbing subcategories on their RBQ licence.

Competency certificates vs. RBQ licences

These two credentials are not the same thing. Even when a project doesn't require an RBQ licence, certain workers may still need competency certificates.

According to the RBQ, work that's exempt from licensing may still be subject to the Act respecting labour relations, vocational training and workforce management in the construction industry. This means:

• Excavator operators need CCQ competency certificates
• Cement applicators need appropriate trade certification
• Workers performing construction-adjacent tasks may need to be registered with the CCQ

This is relevant for larger landscaping projects that involve heavy equipment or concrete work.

Fences, above-ground pools, and sheds

These come up constantly, and the answer is straightforward. According to CAA-Quebec, you don't need an RBQ licence for:

• Installing a fence (as long as it's not attached to the building)
• Installing an above-ground pool
• Building a shed (as long as it's freestanding)

Once any of these become attached to the main building, the licence requirement kicks in.

How to determine what your project needs

A practical decision flow:

1. Is the work attached to the building? If yes, an RBQ licence is required.
2. Does it involve electrical or plumbing? If yes, an RBQ licence is required.
3. Does it involve significant structural work (large retaining walls, deep excavation)? If yes, consult the RBQ or check their subcategory listings.
4. Is it basic landscaping (grading, pavers on gravel, planting, sod, fencing)? Generally no licence required.
5. Does it involve heavy equipment operators? They may need CCQ competency certificates even if no RBQ licence is needed.

When in doubt, you can use the RBQ's keyword index to search for your specific type of work and see which subcategory applies.

Need landscaping done right in Montreal?

Whether your project needs a licensed contractor or not, you deserve someone who knows the rules and follows them. Call us at 514-900-3867 to discuss your project and get a clear, honest assessment of what's involved.