Project

Installation of a GREE ceiling cassette heat pump in Pont-Viau, Laval: a discreet, high-performance HVAC integration adapted to residential ceilings

AirGreen installs a GREE ceiling cassette heat pump in Pont-Viau, Laval: discreet integration, uniform comfort, neat HVAC installation, and tailored for residential spaces.

By AirGreen Climatisation & Chauffage Admin13 min read
Installation of a GREE ceiling cassette heat pump in Pont-Viau, Laval: a discreet, high-performance HVAC integration adapted to residential ceilings
Installation of a GREE ceiling cassette heat pump in Pont-Viau, Laval: a discreet, high-performance HVAC integration adapted to residential ceilings
–chapters in this story
13 minreading time
–type of installation
2026year published
The tour

Take a tour of the installation

Each number is a point we check on site. Switch between summer and winter to watch air and heat move.

Generic diagram: ceiling cassette connected to an outdoor unit

In summer, the outdoor unit rejects the house's heat outside.

Generic illustration of this type of installation, not a survey of this job site. Tap a number.

  1. Built into the ceiling, it sends air out on four sides. Only the grille shows in the room.

  2. Above the ceiling, there has to be enough height for the unit, its hangers and its connections, with access for service.

  3. In cooling mode the cassette produces water. It leaves through a drain with the right slope, or through a pump when needed.

  4. The lines and the cable reach the outside through an opening sealed against water, cold air and insects.

  5. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible.

  6. The compressor and the fan. In heating mode it captures heat from the outdoor air and moves it inside.

  7. It keeps the unit above accumulated snow, so it stays clear and defrost water can drain.

The job

A GREE Ceiling Cassette Precisely Installed in a Space Where Every Detail Mattered

In Pont-Viau, a well-established sector of Laval featuring renovated homes, condos, duplexes, and small residential buildings, our AirGreen team carried out a particularly interesting HVAC installation: the integration of a GREE ceiling cassette heat pump into a finished ceiling, with meticulous attention paid to the opening, peripheral sealing, indoor unit positioning, and technical access for future maintenance.

This type of project requires much more than simply installing equipment. A ceiling cassette must be integrated into an existing structure while respecting several constraints: clearance around the unit, uniform air distribution, sound level, fan access, refrigerant connection, condensate drainage, electrical connection, visual finish, and long-term performance maintenance.

The photo taken during the work clearly shows the GREE indoor unit before the final decorative grille was installed. The internal casing, centrifugal fan, electronic components, mounting brackets, and the cutout in the ceiling illustrate a crucial phase of the installation: where the quality of work is still visible before the equipment is enclosed and integrated into the decor.

At AirGreen, it is often at this stage that the durability of an installation is determined. A misaligned cassette, poorly prepared edges, ill-conceived drainage, or insufficient access can cause water, vibration, noise, or service problems after only a few seasons. This is precisely what we aim to avoid in each of our interventions in Montreal, Laval, Longueuil, on the North Shore, and the South Shore.

Why a GREE Ceiling Cassette Was the Right Choice for This Installation in Pont-Viau

In this project, the choice of a GREE ceiling cassette heat pump met a clear objective: to offer effective comfort without occupying a wall with a traditional wall-mounted unit. In some spaces, a wall-mounted unit is not ideal. There may be windows, cabinets, load-bearing walls, aesthetic constraints, or simply a desire to maintain a cleaner interior finish.

The ceiling cassette then becomes a very relevant solution. It allows air to be diffused more centrally, often in multiple directions, while integrating discreetly into the ceiling. For a homeowner in Pont-Viau, this type of equipment can improve comfort without compromising interior design.

A Discreet HVAC Solution for Spaces Where Walls Are Already Optimized

Homeowners renovating their houses or condos are increasingly looking to preserve the appearance of their main rooms. A wall-mounted heat pump remains an excellent option in many cases, but a GREE ceiling cassette may be preferable when the goal is to limit visual impact.

In this installation, the ceiling opening was prepared to receive the unit with a tight fit, while leaving the necessary space for internal components and the future grille. The photo shows that the unit is recessed into the ceiling, with the protective elements still visible around the casing. This step requires methodical work, as the cassette must be perfectly stable and correctly positioned before final enclosure.

Better Comfort Through More Balanced Air Distribution

One of the major advantages of a ceiling cassette is its ability to distribute air more homogeneously. In several installations we carry out in Laval, particularly in open-plan rooms, central living areas, or spaces where walls do not allow for good diffusion, this approach improves temperature distribution.

For occupants, this translates into:

  • a more stable temperature in the room;
  • fewer cold or hot zones;
  • better air circulation;
  • more discreet integration than a wall-mounted unit;
  • comfort appreciated in both cooling and heating.

In a neighborhood like Pont-Viau, where buildings can have varied interior configurations, this flexibility is a significant advantage.

GREE Reliability for Residential and Multi-Zone Projects

GREE is a recognized brand in the field of heat pumps and air conditioning solutions. Its systems are often chosen for their good balance of performance, reliability, parts availability, and adaptability to residential projects. GREE cassettes are particularly interesting when the client desires a more architectural, less visible, yet still high-performing solution.

Depending on the project configuration, a cassette can be connected to a single-zone outdoor unit or be part of a multi-zone system. This type of solution is often relevant for multi-story homes, condos with wall constraints, or projects where different zones need to be cooled and heated with a more personalized approach.

An Installation Requiring Rigorous Coordination

Installing a heat pump ceiling cassette is not the same as installing a wall-mounted unit. The ceiling opening must be precisely dimensioned. The structure must be able to properly support the unit. Refrigerant lines must arrive at the correct location. Condensate drainage must be carefully anticipated. Electrical power and communication cables must be protected and properly connected.

In this project in Pont-Viau, our team paid particular attention to several technical points:

  • the stability of the unit in the opening;
  • the protection of the unit's perimeter during work;
  • the alignment of the cassette with respect to the finished ceiling;
  • the secure connection of cables;
  • preparation of access for the final grille;
  • verification of the necessary clearance for the fan;
  • management of refrigerant pipe and drain passage.

The photo shows an intermediate phase where the unit is still open. This is a very useful image for understanding that behind a beautiful finishing grille, there is precise technical work that should never be improvised.

Key Steps of This HVAC Installation in Pont-Viau

Site Analysis Before Ceiling Opening

Before proceeding with an installation of this type, we always analyze the available space. A ceiling cassette cannot be installed just anywhere. The available height, obstacles in the ceiling, joists, existing electrical wires, the path of refrigerant lines, and condensate drainage must all be validated.

In Pont-Viau, as in many sectors of Laval, some properties have been renovated over the years. This means there can be surprises behind finished surfaces: old ducts, added wires, double ceilings, irregular spaces, or more complex access than expected. That's why good planning helps avoid unnecessary cuts and delays.

Clean Cut and Edge Preparation

The opening visible in the photo shows a cutout designed to receive the cassette. This step must be carried out carefully, as the final finish directly depends on the precision of the opening. A cut that is too wide can make the grille difficult to install neatly. A cut that is too tight can prevent the unit from seating correctly or complicate maintenance.

We use working methods designed to limit damage around the opening. The edges must be clean, stable, and adapted to the final grille. The cassette must also be protected during installation to prevent dust or debris from entering internal components.

Mounting and Leveling the Indoor Unit

Leveling a ceiling cassette is essential. A slightly tilted unit can impair condensate drainage. Poor mounting can generate vibrations. A misplaced unit can also make the final grille less aesthetically pleasing.

In this installation, the GREE cassette was placed with particular attention to level and alignment. The internal fan, visible in the photo, must remain perfectly free and clear. Internal panels, connectors, and metal supports must be accessible for checks and HVAC maintenance.

Refrigerant and Electrical Connection

A heat pump operates using a refrigerant circuit between the indoor and outdoor units. These connections must be made by qualified professionals. At AirGreen, we do not sell this type of equipment without installation, as refrigerant handling and commissioning require the appropriate permits, tools, and skills.

The electrical connection and communication between units must also be done according to applicable standards. A poor connection can lead to operational errors, intermittent shutdowns, or safety risks. In a project like this, every wire, every connector, and every fastening point must be checked before final enclosure.

Condensate Drainage: A Critical Point for Cassettes

Ceiling cassettes produce condensation water in cooling mode. This water must be properly drained. Depending on the location and available slope, a drain pump may be necessary. Even when the system is designed to drain water naturally, the drain angle and path must be carefully validated.

Drainage problems are among the most costly errors in recessed installations. A water leak in the ceiling can damage drywall, paint, moldings, and sometimes even the floor. That's why we place particular importance on this step.

Enclosure, Final Grille, and Performance Tests

Once the unit is installed, connected, and tested, the finishing grille completes the integration. It is at this point that the cassette takes on its final appearance: discreet, clean, and well-integrated into the ceiling.

Before leaving the premises, our team checks the cooling and heating operation, drain flow, remote control response, ventilation, abnormal noises, unit stability, and air diffusion quality.

What This Installation Demonstrates About AirGreen's Expertise

We know how to work in finished spaces without compromising the finish

Many clients hesitate to install a ceiling cassette for fear of damaging their interior. This fear is understandable. A recessed installation requires more delicate execution than a standard wall-mounted installation.

Our experience in Montreal, Laval, Longueuil, on the North Shore, and the South Shore allows us to manage this type of project methodically. We know how to protect surfaces, plan openings, coordinate technical passages, and leave a clean result.

We adapt the solution to the space, not the other way around

A good HVAC contractor doesn't always force the same solution. In some cases, a wall-mounted unit is ideal. In others, a floor console is more appropriate. For this project in Pont-Viau, the GREE ceiling cassette better met the space constraints.

It is this analytical capability that makes a real difference for the client. The goal is not just to install a machine, but to offer a durable, efficient, easy-to-use system consistent with the existing layout.

We also consider future maintenance

A recessed cassette must remain accessible. The filter, fan, connectors, and certain internal components may require periodic inspections or cleaning. An installation that makes maintenance difficult often ends up costing the client more.

In this project, technical access was considered from the installation stage. This is a point we systematically integrate into our projects, as good HVAC maintenance extends equipment life and maintains better energy efficiency.

Practical Tips for Homeowners Considering a Ceiling Cassette

Don't choose solely based on appearance

A ceiling cassette is discreet and elegant, but it must be compatible with the building structure. Before choosing this type of equipment, it is necessary to check the available space in the ceiling, the possibility of running conduits, and drainage.

Have the air diffusion evaluated

A poorly positioned cassette can blow air towards an obstacle, a beam, a wall that is too close, or an area already well-tempered. Positioning must take into account the natural air circulation in the room.

Check drain access

Even an excellent device can cause trouble if condensate water is not properly drained. In ceiling cassette heat pump projects, drainage is a priority element.

Entrust the installation to a qualified team

The installation of a heat pump involves refrigerant, electrical, and mechanical connections. It should never be treated as a simple decorative appliance to be inserted into a ceiling.

A Relevant Solution for Pont-Viau, Laval, and Surrounding Neighborhoods

Pont-Viau is an area with a great diversity of buildings. Some clients want to modernize an existing home. Others seek to improve the comfort of a renovated dwelling. Still others want a discreet solution for a space where walls are already used.

In all these contexts, the GREE ceiling cassette can represent an excellent alternative. It combines discretion, comfort, efficiency, and integration flexibility. For clients in Laval, as well as Montreal, Longueuil, the North Shore, and the South Shore, this type of installation is worth considering when interior design makes a wall-mounted unit less advantageous.

At AirGreen, we evaluate each project based on the building's specific characteristics, occupant habits, room configuration, technical constraints, and comfort objectives. This approach allows us to recommend a solution that genuinely works in daily life, not just on paper.

Final Result: Discreet Comfort, Meticulous Installation, and a System Ready for Quebec's Seasons

This installation of a GREE ceiling cassette heat pump in Pont-Viau perfectly illustrates the kind of work that requires both field experience, a strong understanding of HVAC systems, precision in interior finishing, and technical rigor in commissioning.

The photo shows the invisible background of a clean final result: the fan, supports, connections, insulated casing, prepared opening, and all the details that will ensure the unit operates correctly for several years.

For the client, the benefit is clear: a discreet, well-integrated, efficient heating and cooling solution tailored to their space. For AirGreen, it's another concrete example of our commitment to providing reliable, clean, and well-thought-out installations in Greater Montreal.

The steps

The big day, step by step

The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.

Step 1 of 9The on-site estimate

We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.

  1. The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

What would it look like at your place?

Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Going further

    Your own project, step by step

    Through the seasons

    What to do, season by season

    Three habits per season for this unit. They take a few minutes and prevent many calls.

    • Clean the indoor unit's filters.
    • Clear leaves and debris left on the outdoor unit by winter.
    • Test cooling before the first hot days.
    At your place

    Is your home ready?

    Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.

    0 / 6 checked
    True or false

    Four statements: true or false?

    It all comes down to details you have just seen.

    1. In heating mode, the outdoor unit can produce water.

    2. You pick the capacity with a simple square-footage rule.

    3. A multi-zone connects several indoor heads to a single condenser.

    4. The disconnect can sit behind the patio furniture.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.

    Could this job help a neighbour?

    Share
    Similar projects

    More jobs to see, near you

    By town, by equipment or by region: browse more than 4,700 published projects.

    Each dot: a town where AirGreen has published projects. The glowing dot: this job.

    All our projects

    Your project

    Every house has its constraints. We see them before we install.

    The on-site estimate is free and the quote follows within 24 hours.

    • RBQ licence5645-9605-01 · 15.8, 15.10, 16
    • EstimateOn site, free
    • QuoteWithin 24 hours

    Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).

    Leave a comment