New buildings & extensions - Cartago Construction

Complete house, garage or extension - we build your project from A to Z, according to Quebec standards.
Would you like to build a new home or extend your existing one without getting in over your head?

With Cartago Constructionwe manage your project from A to Z design, permits, structure, MEP (electrical/plumbing/ventilation), finishing and turnkey handover. We combine on-the-ground expertise, compliance with Quebec standards (RBQ) and tight quality control to deliver durable, high-performance, aesthetically pleasing structures.

What exactly is "new construction" and "expansion"?

  • New construction New foundations, framework, building envelope, technical networks and finishing touches - a house delivered ready to move into.

  • Expansion Whether it's a side extension, elevation, garage addition, veranda or rear extension, the new structure is integrated into the existing building in a static, watertight and aesthetically pleasing manner.

Micro-services included (entities & attributes)

Engineering, design & compliance

  • Feasibility study and terrain analysis (topography, access constraints).

  • Soil / geotechnical investigation (bearing capacity, water table, foundation recommendations).

  • 2D architectural drawings / 3D renderings to view before you start.

  • Structural engineering calculations (beams, columns, foundations, anchors).

  • Municipal permit management and compliance with Building code and requirements RBQ.

Site preparation & foundations

  • Site releaseearthworks, grading and water management.

  • Excavation and slab preparation.

  • Foundations The following elements are included: footings, foundation wall, flashings, drains (French drain) and waterproofing membrane.

  • Humidity control and drainage system if required.

Frame & envelope

  • Wood, steel or concrete frames depending on design (purlins, joists, load-bearing wall).

  • Air/vapour barrier/insulation system performance (R-value adapted to the climate).

  • Windows & doors certified (air/watertightness, Uw, resistance) with frames and flashings.

  • Roof shingles, elastomeric membranes, flat roofs, insulation and waterproofing.

Technical networks (MEP)

  • Plumbing : supply, drainage, water points, installation of sanitary appliances.

  • Electricity panels, circuits, recessed lighting, appliance mounting.

  • Heating & air conditioning heat pump, radiant floor, furnace, ventilation (VMC / air exchanger).

  • Home automation & security intelligent thermostats, alarms, intercoms.

Interior & exterior finishes

  • Partitions, gypsum, soundproofing and integrated furnishings.

  • Floor coverings hardwood, ceramic, LVT, underfloor heating.

  • Kitchen & Bathrooms carpentry, quartz/granite, high-end plumbing.

  • Exterior cladding canexel, brick, stucco, aluminium, composite.

  • Landscaping terrace, steps, sidewalks, landscape connections.

Management & delivery

  • Site planning and coordination (GANTT schedule, deliverables by phase).

  • Subcontractor coordination (plumbing, electricity, roofing, etc.).

  • Quality control & regular site inspections.

  • Turnkey deliverycompliance file and maintenance manual.

Technical specifications & energy optimization (entities to know)

  • Compliance with best insulation practices (adapted R-values).

  • Airtight solutions (continuous air barrier, foam gaskets, taping).

  • Eco-performance options: Novoclimat / R-2000 (depending on project), high-efficiency heat pumps, heat recovery ventilation (HRV/ERV).

  • Equipment integration Energy Star and low-VOC materials for better indoor air quality.

Factors influencing cost and feasibility

  • Area and architectural complexity.

  • Foundation type required (slab-on-grade, crawl space, etc.), excavated subsoil).

  • Site access (equipment operation, need for special formwork).

  • Finish level (standard vs. high-end installation).

  • Heavy structural work (opening load-bearing walls, reinforcement).

  • Regulatory requirements and permit costs.

Guarantees, compliance and insurance

  • RBQ Certified general contractor and compliance with standards.

  • Site insurance and civil liability included.

  • Compliance file and certificates (electricity, plumbing) handed over on delivery.

  • Work warranty according to contractual agreement (finishes, structure, waterproofing).

Why choose Cartago Construction?

  • 10+ years' field experience directed by Yassine Troudi.

  • Turnkey approach a single point of contact, complete coordination.

  • Network of qualified subcontractors and verified.

  • Attention to detail and strict compliance with Quebec standards.

  • Transparent tenders and rigorous cost management.

How do you get started?

  1. Contact us for an initial assessment (photo, existing plans or visit).

  2. Feasibility study and preliminary estimate.

  3. Design & detailed quotation (plans, 3D, choice of materials).

  4. Permit application and site preparation.

  5. Construction followed by periodic inspections.

  6. Delivery and acceptance from turnkey project.

Ready to build or expand without stress?

For a free quote, a site assessment or just to talk about your project:

📞 438-932-4326
✉️ info@cartagoconstruction.ca

Cartago Construction - New construction & extensions delivered with rigor, safety and durability.

Cartago Construction 5-star review icon — customer testimonials

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Other services available

Discover other ways we can help you improve your home.

Basement renovation

Transform your basement into a warm, practical space that adds value to your home.

Bathroom renovation

Transform your bathroom into a modern, comfortable and functional space.

Kitchen renovation

Modernize your kitchen with practical design, durable materials and an impeccable finish.

Rénovation intérieure

Bring your space back to life with modern, practical and sustainable renovations.

Interior & exterior painting

Clean, well-painted walls that last - indoors and out.

Floor coverings

Hardwood, vinyl, ceramic or laminate - we'll help you choose, install and enhance every room.

Areas served by this service

Click on your zone to see how we can renovate your home.

Montreal

Longueuil

Brossard

Boucherville

South Shore

Laval

3 simple steps to a better life

New surroundings have never been easier

01

Form icon — step 1: contact us about your project

Contact us

Fill out the form and tell us about your project

02

Hammer icon — step 2: start of renovation work

Let's get to work

We transform your space while respecting your budget and the deadline

03

House icon — step 3: enjoy your new space

Live your new life

Enjoy your new comfort and invite people over to your place!

A good job - guaranteed!

Over 10 years' experience at your service.

★★★★★

The project was completely finished quickly and professionally. Yassine is a reliable and trustworthy entrepreneur. I highly recommend his services for your renovation.

Xiaoyuren Tan
Customer
★★★★★

Cartago did an incredible job. The team finished our basement as planned: quality, service and respect for deadlines. I highly recommend Cartago for your renovation projects.

Thi Truong Phi Nguyen
Customer
★★★★★

Cartago Construction offered an excellent experience from start to finish. The team demonstrated meticulous work and a clear commitment to quality. I want to highlight the exceptional contribution of Jihad and Yassine, whose punctuality and professionalism truly set the tone for the entire project. I highly recommend Cartago Construction, and I would gladly do business with them again.

Rizwan R
Customer
★★★★★

I am extremely satisfied with the work done by Cartago Construction. The team is professional, punctual and very attentive to the client's needs. The work was carried out with care and within the planned deadlines. The final result exceeds my expectations: impeccable quality and flawless finishing. I highly recommend this company to anyone looking for a reliable and high-quality renovation service.

Anis Elleuch
Customer
★★★★★

I entrusted the complete transformation of my basement to Cartago Construction, and I am truly impressed by the result! The team was able to optimize the space and create a warm, modern and functional place. Everything was done with care and professionalism, from start to finish. Thanks to Yassine and his team for their excellent work — I recommend them without hesitation!

Waaa Yooo
Customer
★★★★★

Thank you very much for your excellent work! I am very satisfied with the result and your professionalism. Bravo to the whole team!

Hella Troudi
Customer
★★★★★

Thank you for your office job Yassine My home is becoming my little paradise

Jihed Bagga
Customer
★★★★★

He renovated my house: truly an excellent finished product, daily monitoring of the project and the final result excellent quality. Truly satisfied.

Boujelben Mohamed
Customer
★★★★★

Very good coordination, respect for commitments (cost, schedule), and remarkable finishing quality. I highly recommend Cartago Construction. »

Ismail Triki
Customer
★★★★★

Best service Best price I highly recommend

Harazi Mehrez
Customer
Customer satisfaction rates.
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Years of experience.
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More than a dozen successful projects every year.
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Make your environment a
home

Why so many Quebecers put their trust in us:

Satisfied client consulting Cartago Construction renovation services

You'll get a fast, clear and free quote from RBQ-certified experts.
With our complete renovation solutions, your space becomes exactly as you imagined it.
Whether it's a redesigned kitchen, an optimized basement or an exterior makeover, we manage it all - on time and on budget.
Local expertise. Seamless service. Peace of mind from start to finish.

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Tell us about your project

We'll get back to you as soon as possible.