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Central Montreal · residential

Heat pump repair in Downtown Montreal

In downtown towers a heat pump is often a ductless or in-suite system, with little or no yard for an outdoor unit. Ville-Marie bans units in front yards and on front balconies and sets a roof setback of twice the unit's height. JCD repairs all brands, arranges access with building management and works on condo systems and commercial rooftop equipment.

Rated 4.5 out of 5 from 1,221 Google reviews
Two ductless heat pump outdoor units against the wall of a house
QUICK ANSWER UPDATED 13 OCT 2026 · JCD RÉFRIGÉRATION · RBQ 8108-4964-15

The most common heat pump failures are a refrigerant leak, a failed reversing valve, a defrost board fault and an iced-over outdoor coil. Same-day emergency service in Downtown Montreal, seven days a week: call 514-696-4629.

Common heat pump problems we repair

Mention the symptom when you call so our team can prepare.

A JCD technician installing a Lennox outdoor heat pump on a wall bracket
  • Water drips from a wall-mounted head

    Water runs down the wall under a ductless indoor unit, most often in cooling season.

    Possible causesBlocked condensate lineCondensate pumpHead not level
  • A ductless head blinks or shows an error code

    The indoor unit stops and its light flashes a pattern or a code. Note it before you call: it tells the technician where to start.

    Possible causesSensor faultCommunication wiringControl board
  • The outdoor coil stays covered in ice

    A light frost that clears after a defrost cycle is normal. A coil that stays encased in ice for hours is not.

    Possible causesDefrost boardDefrost sensorLow refrigerant
  • Backup heat runs far more than it used to

    The backup heat comes on in mild weather, or the heating bill climbs while the heat pump seems to run.

    Possible causesLow refrigerant chargeBalance-point settingOutdoor sensor
BRANDS WE SERVICE IN Downtown Montreal
LennoxCarrierTraneYorkFujitsuPanasonicSanyoFriedrichHoneywell

Central Montreal · Downtown Montreal

Homes and buildings in Downtown Montreal

Downtown is part of the Ville-Marie borough, where 97.6% of occupied dwellings are apartments and 56.9% are in buildings of five storeys or more. Montreal's assessment roll shows 46.5% of the borough's dwelling units in buildings built since 2001. A tower has little or no yard, so outdoor equipment goes on a roof or inside the building, and access is arranged with the building manager.

  • 97.6% of Ville-Marie homes are apartments 2021 borough profile
  • 56.9% of homes in 5+ storey buildings 2021 borough profile
  • 46.5% of units in 2001+ buildings Assessment roll
  • 109,509 people live downtown 2021 Census

Source: Ville de Montréal, 2021 borough profile; Ville de Montréal, assessment roll; Statistics Canada, 2021 Census of Population.

Repair or replace?

Under twelve years and a first major fault: repair, almost always. Over fifteen years, or a second major failure inside two seasons: replacement is worth considering.

Repair

System age
Under 12 years
Failure history
First major fault
Compressor
Within amp rating

Replace

System age
15 years or more
Failure history
Second in two seasons
Compressor
Shorted or seized

Verdict

In between, we assess the system and explain the repair and replacement options. We offer a free visit and written estimate for equipment replacement.

Get a quote

LOCAL CONSIDERATIONS · Downtown Montreal

What is different about repairs here

  • Ville-Marie bans permanent units in a front yard and on a balcony on the front of a building, which rules out the simplest placement on street-facing sides of condo towers.
  • On a flat roof, the outdoor unit must be set back from the façade by twice its height, and an acoustic screen may be required.
  • Towers rarely have a ground-level yard, so work on rooftop equipment is scheduled with the building manager and, in condos, the condo board.
Heat pump down in Downtown Montreal?
If the coil is frosted solid or the line is icing over, shut the system off and call rather than letting it run.
514-696-4629

Heat pump questions from Downtown Montreal

Request service or an estimate

Tell us what you need, and our team will contact you to arrange the next step.

Emergency service514-696-4629

Contact information

Property type
Service required
How soon do you need service?

Additional information

Rated 4.5 out of 5 from 1,221 Google reviews
“Two other companies told us to replace the whole system. JCD found a faulty valve.”
Marie-Claude L. · Pointe-Claire · Jan 2026Read our Google reviews

We service all HVAC brands.

  • Lennox
  • Carrier
  • Trane
  • Fujitsu
  • Panasonic
  • York
Estimate your heating costs Six questions and published Hydro-Québec and Énergir rates for an estimate of your heating costs. Estimate only. Open the estimator
JCD Refrigeration
RBQ 8108-4964-15
JCD Réfrigération Inc.
2296 Chemin St-François
Dorval, QC H9P 1K9
514-696-4629
Office hours
Monday to Friday: 7:00 a.m. to 5:00 p.m.
Emergency service
Seven days a week, including weekends and holidays.
514-696-4629
Emergency service: 24/7
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