Heat pump repair in Longueuil and on the South Shore

Your heat pump has stopped heating, it is icing up, or it blows warm air in the middle of summer? We find the exact cause before touching anything - refrigerant leak, compressor, control board - and the repair price is given to you before we start. And if it is at the end of its life, we tell you straight.

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We find the real cause

Even if the diagnosis takes hours, we actually hunt down the refrigerant leak or the faulty part. We do not charge you more for that.

Price before we touch it

The repair price is given to you before we open your heat pump, never after the fact.

Repair or replace, honestly

If repairing approaches the cost of a new one with the LogisVert rebate, we tell you. It is your decision, not ours.

A failing heat pump gets diagnosed before it gets repaired

The heat pump has become the central appliance in many South Shore homes: it heats in winter and cools in summer, wall-mounted or central. When it starts misbehaving, the reflex is to panic and assume the worst - but most breakdowns have a precise, identifiable cause, provided you take the time to look for it.

The classics: a heat pump that no longer heats, an outdoor unit covered in ice because the defrost cycle has stopped running, a refrigerant leak costing you capacity, a struggling compressor, a temperamental control board or thermostat. Each has its own solution, and the cost varies enormously from one case to the next - which is why we never quote a number before we have found it.

Wall-mounted or central, the diagnostic principle is the same, but the failures do not present quite the same way. A wall-mounted unit (mini-split) has its indoor and outdoor units linked by refrigerant lines: the trouble often comes from the outdoor unit, the connection or the board. A central unit, tied into the home's ductwork, shares symptoms with a central heating system. We know both, across all brands, and we adapt the diagnosis to your unit.

How we work: we diagnose first, we identify the real cause even if it takes time, and we tell you the repair price before touching the unit. If it turned out to be a simple sensor, all the better for you. If it is heavier than that, you know before we start.

Heat pump repair is part of Air 2's HVAC repair silo: a human answers, the price comes before the job, and our in-house team is on site - never a subcontractor.

Failing outdoor heat pump unit diagnosed by an Air 2 technician in winter

The heat pump failures we see most

Each one has a cause, and each one gets diagnosed before it gets priced. Here are the most frequent.

It no longer heats

Low refrigerant, compressor, or reversing cycle: we find out which one before giving you a price.

The outdoor unit ices up

When the defrost cycle stops running, ice builds up. It is often a sensor or a board, not the whole unit.

Warm air in cooling mode

In summer, a heat pump blowing lukewarm air usually means a refrigerant leak. We actually hunt it down before recharging.

Unusual noise

Clicking, rumbling, whistling: some are harmless, others signal a part about to give out. We listen and tell you which.
Air 2 technician measuring refrigerant pressure on a heat pump

"At its age, better to replace it than repair it"

Maybe. But maybe not - and that is exactly the kind of decision nobody should make for you, or sell you without showing you the numbers. A heat pump generally lasts 10 to 15 years. Before that, most breakdowns are worth repairing. After that, it is a case-by-case conversation.

Our benchmark is simple and we give it to you straight: when the cost of the repair approaches that of a new heat pump eligible for the LogisVert rebate, replacement often becomes the better math - you walk away with a new unit, under warranty, more efficient, for not much more than the major repair. But if we are talking about a sensor or a minor part on a machine that is still young, repairing is the obvious call.

What we do not do is push you toward replacement because it pays more. We show you both scenarios and you choose. And if you decide to replace, it is our in-house team that installs the new one - we also handle wall-mounted heat pump installation, with the LogisVert rebate calculated into the quote.

Frequently asked questions about heat pump repair

The most frequent causes are low refrigerant (often a leak), a struggling compressor, a defrost cycle problem, or a failing control board. Sometimes it is as simple as a thermostat or a filter. Since the cost varies a lot from one cause to another, we diagnose first to find the real reason, then tell you the price before repairing - never the other way around.
A bit of frost in cold weather is normal: the heat pump melts it off by itself with its defrost cycle. When the unit truly covers in ice and stays stuck, that cycle is no longer running properly - often a sensor, a board, low refrigerant or blocked airflow. Do not let it drag on: a heat pump locked in ice strains and can damage parts. We find the cause and give you the price before touching it.
It depends entirely on the failure: a sensor or a thermostat is nothing like a compressor. That is precisely why we refuse to throw out a number over the phone without having seen the unit. We diagnose, we identify the real cause, and we tell you the exact repair price before starting. You know what you are paying before we touch it, and the evening or weekend rate, if it applies, is stated up front.
Generally 10 to 15 years, depending on maintenance, brand and use. A well-maintained heat pump, with clean filters and coils, reaches the upper end of that range more easily. Our demanding climate - hot in summer, very cold in winter - puts a lot of demand on it, which is why regular maintenance matters so much for not shortening its life.
Our benchmark: when the cost of the repair approaches that of a new heat pump eligible for the LogisVert rebate, especially on a unit past 10 to 12 years that is likely to shed other parts soon. In that case, replacing gives you a new unit, under warranty and more efficient, for not much more. On a machine that is still young with a minor failure, repairing remains the better choice. We give you the numbers on both sides and you decide.
Not always, but it is worth a listen. A light hum is normal; clicking, rumbling, whistling or knocking are not. Depending on the noise, it ranges from a loose part or debris in the unit to a struggling compressor or fan. Better to have it checked early: an ignored noise often turns into a more expensive breakdown. We identify the source and tell you straight whether it is minor or not.

What clients say

More than 130 Google reviews, 4.8 stars - with the before and after photos to prove it.

Air 2 Inc.
4.8 (133 avis)
Avis Google
Emeline Rampangajouw
il y a 1 mois
(Translated by Google) Excellent service! Technician Adam was punctual, professional, and respectful while cleaning the central system and bathroom drain. I highly recommend their services!

(Original)
Excellent service! Le technicien Adam a été ponctuel, professionnel et respectueux lors du nettoyage du système central et du conduit de salle de bain. Je recommande fortement leurs services!
EL ChicO
il y a 2 mois
(Translated by Google) Good company, good worker, fast and reliable service

(Original)
Bonne compagnie bon travailleur service rapide et fiable
Suzy
Aug 2025
(Translated by Google) We are very satisfied with the work of technician P-A, who performed professionally. He arrived on time and was very kind to us. We recommend Air2 without hesitation. We'll be back in four years to have our ducts cleaned again.

(Original)
Nous sommes très satisfait du travail du technicien P-A qui a fait un travail avec professionnalisme. Il s'est présenté à l'heure prévue et a été très gentil avec nous. Nous recommandons Air2 sans hésitation. Rdv dans 4 ans pour refaire le nettoyage de nos conduits.
Line Simon
Jun 2025
(Translated by Google) We live in a condominium and suspected that one of the owners had a bird's nest in her dryer vent. Pierre-Alexandre came and did a thorough cleaning and was very respectful of nature, placing the three eggs he found under our cedar trees, along with part of the nest removed, in case the mother returned for her chicks. He did an excellent job working at heights (3rd floor) and we will definitely contact this company again if needed. Thank you, Pierre-Alexandre!

(Original)
Nous sommes en copropriété et nous nous doutions qu'une des copropriétaires avait un nid d'oiseau dans son conduit de sécheuse. Pierre-Alexandre est venu faire un bon nettoyage et a été assez respectueux de la nature pour poser sous nos cèdres les 3 oeufs trouvés avec une partie du nid enlevé au cas où la mère reviendrait pour ses petits. Il a fait un excellent travail en hauteur (3e étage) et nous recontacterons assurément cette compagnie au besoin. Merci Pierre-Alexandre
Robin Parthenais
Feb 2025
(Translated by Google) Very satisfied with Adam's work. He found a solution (difficulty accessing the furnace) and did a great job! Good guy!

(Original)
Très satisfait du travail d’Adam. Mode solution (difficulté d’accès à la fournaise) et travail bien fait! Good dude !
Christiane Robillard
Oct 2024
(Translated by Google) Very satisfied!
Air2 offers professional, fast, and efficient service: a detailed response to our quote request on the same day; clear answers from Andrea, who made efficient and accurate changes to the quote; and Adam's punctual arrival and professional work, including excellent advice on maintaining our ventilation ducts and other components between cleanings.

All this at a competitive price.
I recommend Air2 without hesitation!

(Original)
Très satisfaits!
Air2 offre un service professionnel, rapide et efficace : réponse détaillée le jour même à la demande de soumission; questions clairement répondues par Andrea et modifications apportées à la soumission avec efficacité et exactitude; arrivée à l’heure prévue et travail professionnel de Adam, qui nous a également donné d’excellents conseils pour entretenir les conduits de ventilation et autres entre les nettoyages.
Tout ça à un prix concurrentiel.
Je recommande Air2 sans hésitation!

Get your heat pump repaired

We find the real cause and give you the price before touching it. Describe the problem, and a member of the team calls you back - or call directly if you have no heating or cooling.

  • Transparent diagnosis - we find the cause before pricing it
  • Price given before we open the unit
  • Repair or replace: we do the honest math with you, LogisVert included

If the math leans toward new, it is the same team that handles the heat pump rebate from A to Z.

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A heat pump running again, without guessing what you are paying

Honest diagnosis, price before the job, in-house team. And the real repair-or-replace math, with no pressure.

(514) 706-2635 Request my quote

(514) 706-2635 info@air2.ca