When it's time to renovate your home in Longueuil, You want to be sure that the work will be done properly. Not just for today, but for the next 20 years.
Hiring an RBQ-certified contractor isn't just a question of paperwork. It's your guarantee that someone will answer for their work if something goes wrong. That your walls will stand. That your renovated basement will comply with building codes.
In this article, we'll take a look at why RBQ certification makes all the difference to your renovation projects. We'll also show you how to verify that a contractor really is certified-because, yes, we still come across people who claim to be certified without actually being certified.
What is an RBQ-certified contractor?
An RBQ-certified contractor is someone who has obtained an official license from the Régie du bâtiment du Québec. This license confirms that the contractor has the necessary skills, insurance and qualifications to carry out construction or renovation work in a safe and compliant manner.
Not everyone can just decide one morning to become a general contractor. You have to prove your experience, pass exams, and keep your liability insurance up to date.
Understanding the Régie du bâtiment du Québec (RBQ)
The RBQ is the organization that oversees everything to do with construction in Quebec. It exists to protect the public and ensure that work complies with the Building Act (Act B-1.1).
Its main role? To issue licenses to qualified contractors and monitor the industry. In 2025, the RBQ even tightened its rules with Directive 2025-03, which requires licenses to be updated in real time in the public register.
This means you can instantly check whether a contractor's license is active, suspended or revoked. No more waiting days to get this information.
The legal obligations of a certified contractor
An RBQ-certified contractor must meet several strict requirements. First, they must carry liability insurance of at least $1 million. If something goes wrong on your job site, this insurance protects you.
He must also be registered with CNESST to cover his workers in case of accident. And of course, he must follow the Quebec Construction Code to the letter in all his projects.
Always check your contractor's license on the official RBQ register before signing a contract.
Why hire an RBQ-certified contractor in Longueuil?
Longueuil has its own urban planning and development regulations. When you renovate here, you must respect not only the provincial Building Code, but also specific municipal requirements.
A certified contractor knows these rules. He knows what permits to apply for, what standards to follow, and how to avoid problems with the city. That saves you headaches and costly delays.
Here are three concrete reasons why RBQ certification really matters to your project.
Safety first
According to RBQ data, some 42% of violations recorded in Quebec are related to work carried out by non-certified individuals. Average fines for these violations are around 4 200$.
But it's not just about money. Poorly done work can put your family at risk. An unqualified contractor could compromise your home's structure, create fire hazards or cause moisture problems that lead to mold.
In Longueuil, the city strictly enforces its urban planning bylaws. If your work doesn't comply with the code, you could be forced to remove it at your own expense. Ask for a preventive inspection before starting work to avoid these problems.
Guaranteed quality and durability
When a contractor is RBQ-certified, your work is automatically covered by the GCR (Garantie de construction résidentielle) warranty plan. This coverage can be up to 300,000$, depending on the type of project.
Statistics show that homeowners who hire certified contractors make 25% fewer insurance claims related to construction defects. Why? Because these contractors follow professional standards and use the right techniques.
This was the case at Boucherville in 2023, when a balcony partially collapsed. The investigation revealed that the work had been carried out by someone without an RBQ license, who had miscalculated the loads. Had the contractor been certified, this tragedy would probably have been avoided.
Peace of mind and legal compliance
A recent survey of Quebec homeowners showed that 82% prefer to hire a certified contractor, even if it costs a little more. The reason? Peace of mind.
With a certified contractor, you have legal recourse if something goes wrong. You can file a complaint with the RBQ. You're protected by the contractor's license bond.
Without certification, you're on your own. If the contractor disappears in the middle of a project or does a shoddy job, you have very few options for getting reimbursed or repairing the damage.
Myth or reality? Misconceptions about RBQ certification
We hear a lot about RBQ certification. Not all of them true. Let's find out together.
Myth 1 - «All workers need an RBQ license».»
False. Not all workers must be RBQ-certified individually. It's the general contractor who must be licensed to manage the project.
However, some trades, such as electricians and plumbers, require their own certification. And beware: about 20% of RBQ violations come from worker misclassification.
There is also a grey area with subcontracting. In fact, the RBQ announced in 2025 that it would be revising its rules to clarify who is responsible when several subcontractors work on the same site.
Myth 2 - «A certified contractor is always more expensive».»
Yes and no. It's true that hiring a certified contractor can cost 15 to 20% more up front. But look at the full picture.
Certified contractors make fewer costly mistakes. They know the codes and standards. That means about 30% less spent on rework and corrections after the fact.
If you hire someone on the cheap without a license, you risk paying twice: once for the poorly done work, and a second time to have it redone properly. Not to mention the potential fines if the city discovers that your work doesn't comply.
Ask for a free estimate and compare the long-term value for money, not just the initial price.
How do I check the validity of an RBQ license in Longueuil?
Checking an RBQ license is free and easy. It takes five minutes and can save you thousands of dollars in trouble.
Here's exactly how to do it, step by step.
Step 1 - Find your RBQ business number
Always ask for your contractor's RBQ license number before signing anything. It's a 10-digit number, usually starting with 5 or 8.
Then visit the RBQ website at public register online. You can search by company name or license number. For example, for Cartago Construction, you'll find our active license with all our qualifications.
The register shows you whether the license is valid, what category of work the contractor can operate in, and whether there are any restrictions or warnings.
Step 2 - Confirm insurance and validity of municipal permit
The RBQ license is just the first step. You must also confirm that the contractor has active liability insurance.
In Longueuil, the city integrated a new system in 2025 that automatically checks whether a contractor has the right municipal permits for your project. This came after several cases of fraud were discovered in September 2025.
Don't hesitate to ask for written proof of insurance. A serious contractor will provide it. Check your contractor now - visit the RBQ register to confirm his status.
The consequences of hiring an uncertified contractor
In Longueuil and on the South Shore, the RBQ noted more than 1,120 violations related to non-compliant work last year. That's a lot.
In 2024, a major fraud case made the news: an individual posing as a certified contractor swindled homeowners out of more than $2.5 million. The victims lost everything because they hadn't checked his license.
Here's what you can expect if you hire someone without RBQ certification.
Financial and legal risks
Without a certified contractor, you have no GCR warranty coverage. Zero protection if the work is defective.
If the Ville de Longueuil discovers that your work was done without a permit or by an uncertified person, you can be fined. Worse still, the city may require you to demolish everything that's been done and start from scratch, at your own expense.
You could also run into problems if you sell your home later. A potential buyer or his inspector will see that major work has been done without a permit. This lowers the value of your property.
Uncertain quality and loss of warranty
The GCR warranty is your safety net. It covers construction defects up to 300,000$, depending on the type of project. Without a certified contractor, you lose this protection completely.
We've seen dozens of cases where homeowners have been left with cracked foundations, leaky roofs or dangerous electrical systems, with no recourse because their contractor wasn't certified.
Disputes with uncertified contractors often end up in small claims court. And even if you win your case, good luck collecting the money if the contractor has disappeared or has no assets. Protect your investment - always hire an RBQ-certified professional.
Why choose Cartago Construction in Longueuil?
At Cartago Construction, we understand the realities of Longueuil and South Shore homeowners. You want quality work, done by the book, by people you can trust.
That's exactly what we offer from our office on Cartier Street in Longueuil.
A certified and experienced team
We've only been in business for two years, but our founder, Yassine Troudi, has over 10 years' hands-on experience in residential construction in Quebec. We know the codes, standards and particularities of the region.
We're RBQ-certified and fully insured. You can check our license in the public register - we even encourage you to do so. Transparency is the basis of trust.
We also work with a network of qualified and certified subcontractors for specialized work. Whether it's electrical, plumbing or other trades, everyone on your site is competent and in good standing.
Transparency, quality and a human approach
We don't like last-minute surprises, and neither do you. That's why we offer free, detailed estimates before you get started. You know exactly what you're going to pay and what you're going to get.
Our approach turnkey means we take care of everything: permits, coordination, execution, final clean-up. You have a single point of contact from start to finish.
We treat every home as if it were our own. Attention to detail, respect for deadlines, and above all, lasting results. Our projects are designed for Longueuil families who want a beautiful, solid home for years to come.
Contact Cartago Construction today for your free, no-obligation estimate.
Call us at 438-932-4326 or e-mail info@cartagoconstruction.ca. Our office is located at 2580 Rue Cartier, Longueuil - we're right next door.
Frequently asked questions (FAQ)
How do I know if a contractor is RBQ certified?
Visit the RBQ public register online and look up the contractor's license number. You'll immediately see whether his license is active, in what category he can work, and whether there are any restrictions. Ask for a copy of the contractor's liability insurance.
Is this compulsory for all renovation work?
Not for small maintenance or decoration jobs. But as soon as you touch the structure, electrical or plumbing systems, or your work exceeds a certain amount (usually 5,000$), you need to hire an RBQ-certified contractor. In Longueuil, some work also requires a municipal permit.
What's the difference between RBQ and GCR?
The RBQ licenses contractors and regulates the industry. The GCR (Garantie de construction résidentielle) offers a warranty plan that protects homeowners against construction defects. To be covered by the GCR, your contractor must have a valid RBQ license.
What happens if my contractor doesn't have a license?
You have no protection from the GCR warranty plan. If something goes wrong, your recourse is very limited. You could also be fined by the city if your work doesn't conform or is done without a permit. The RBQ can sue the contractor, but it won't reimburse you for your losses.
Does insurance cover work done without RBQ?
No. Most home insurance policies do not cover damage caused by work carried out by an uncertified contractor. If a problem occurs and the insurer discovers that the contractor did not have an RBQ license, your claim will probably be denied.
How do I report RBQ fraud in Longueuil?
Contact the RBQ directly by phone at 1-800-276-0029 or fill out the complaint form on their website. You can also contact the Longueuil police if you suspect criminal fraud. Keep all your documents, contracts and proof of payment.
What types of projects require a specific RBQ license?
The RBQ issues different sub-categories of licenses. For example, a general contractor (license 1.1.1) can handle most residential projects. But electricians, plumbers and other specialists need their own licenses. Check that your contractor's license covers exactly the type of work you want done.
Why is Cartago Construction a safe choice in Longueuil?
We're RBQ-certified, with over 10 years' field experience in Quebec residential construction. We hold all the necessary insurance, comply with Longueuil municipal codes, and offer turnkey service with a transparent, human approach. Visit our website cartagoconstruction.ca to view our projects and request your free estimate.
