No surprises
“No surprises, on schedule, and flawlessly done.”— Simon P., kitchen and bathroom (translated from French)
Construction · Additions · Renovation
Why Avenco
Your projects, our expertise. Your peace of mind, our priority.
At Avenco, we believe a construction or renovation project should be a positive experience, from start to finish.
One point of contact, efficient coordination and close follow-up of every trade make for a smooth project, without needless complications.
We pay special attention to quality workmanship, meeting deadlines and keeping job sites clean, safe and well organized, with respect for your property and its surroundings.
“No surprises, on schedule, and flawlessly done.”— Simon P., kitchen and bathroom (translated from French)
“Masterful planning, qualified and conscientious people, a project done exactly the way we asked!”— Julie C. (translated from French)
“You lined up every trade. No downtime on the site.”— Yan L. (translated from French)
What we do
From a bathroom to an addition or any kind of building, we guide you and handle it all: advice, plans, subcontractors, materials and the job site, right up to handing you the keys.

New cabinet layout, an island, fresh countertops: a kitchen built around the way you live.
See kitchens
Curbless shower, heated floors, freestanding tub, new vanity: comfort every morning.
See bathrooms
More room without moving. We build the addition and tie it into your home, turnkey.
See additions
All kinds of buildings, built from A to Z: we handle the plans, the trades and the materials.
See construction
Double your living space and insulate the house better.

Find the cause, fix it, make it new again.
The real job site
Explore our work through videos shot right on our job sites. Explanations, practical tips and real examples, presented by the contractor himself. Authentic content that reflects our expertise, our craftsmanship and the way we work every day.
Drainage, water table, grading: it all starts here.
The pump rolls in and the foundation takes shape.
The frame goes up, then the insulation.
Roofers close up the house, safe from the weather.
Brick wraps the new structure.
Finishing touches, then the keys are yours.
Featured project
Adding on is about much more than extra square footage. It means rethinking the space, improving comfort and opening up new possibilities. At Avenco, we build additions that blend seamlessly with your existing home, combining quality construction, functionality and attention to detail.



What our clients say
recommend Avenco on Facebook (12 reviews)
“Masterful planning, qualified and conscientious people, a project done exactly the way we asked!”
“Great work. They redid my kitchen and my bathroom. No surprises, on schedule, and flawlessly done.”
“Great crew: they renovated my bathroom and my kitchen, and even added a bedroom! Hard-working, perfectionists, and at competitive prices.”
“An organized, reliable and efficient team. Thank you!”
“You lined up every trade, with no downtime on site. We're thrilled with the result.”
“Careful, well-done work. Courteous and professional. I highly recommend them.”
“Professional, courteous, and above all skilled. Well done!”
“A team of pros! Meticulous work!”
About us
Based in Mont-Saint-Hilaire, Avenco specializes in residential construction, renovation and additions.
Founded 10 years ago and backed by more than 15 years of experience in the field, Avenco guides its clients through every step of their project, with a focus on quality workmanship, transparency and rigorous project management.
Our commitment: personalized service, clear communication and results that live up to your expectations.
RBQ licence 5755-0881-01 · APCHQ member
Get a quote
Fill out the form or give us a call, and we'll get back to you to talk it through.
In a hurry? Call us at 450-905-0767.