HVAC Installation & Maintenance in Greater Vancouver

A properly sized, correctly installed HVAC system keeps your home comfortable year-round, controls humidity, and runs efficiently enough to justify the investment within a few years. Main Drain Mechanical designs, installs, and maintains residential and light commercial HVAC systems throughout Greater Vancouver — from ductless mini-split installations in older homes to full forced-air system replacements and commercial rooftop units.

Our Red Seal certified HVAC technicians are trained on all major equipment brands and take the time to do load calculations before recommending a system. An oversized unit is just as problematic as an undersized one — it short-cycles, wears out faster, and leaves your home humid and uncomfortable. We size it right the first time.

HVAC Services We Provide

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Heat Pump Installation

Modern heat pumps provide efficient heating and cooling in one system. We size, install, and commission to manufacturer specs.

Ductwork & Ventilation

Leaky or undersized ductwork wastes energy. We test, seal, and replace ducts for maximum HVAC efficiency.

Annual HVAC Maintenance

Preventive maintenance contracts keep your system running at peak efficiency and catch problems before they cause breakdowns.

  • Ductless mini-split installation — single-zone and multi-zone heat pump systems ideal for older homes without ductwork, basement suites, and additions; eligible for BC Hydro and FortisBC rebates
  • Central air conditioning installation — new AC systems designed and installed for forced-air homes, including refrigerant line sets, electrical connections, and full system commissioning
  • Furnace installation and replacement — high-efficiency gas furnaces sized to your home and installed to manufacturer specifications with all permits and inspections handled
  • Heat pump installation — air-source heat pumps provide efficient heating and cooling in a single system; we handle rebate paperwork for BC Hydro CleanBC programs
  • Annual HVAC maintenance — seasonal tune-ups for AC and heating systems including coil cleaning, refrigerant level check, filter replacement, and full safety inspection
  • Air filter and coil cleaning — dirty evaporator coils and clogged filters reduce efficiency by up to 30 percent and cause premature compressor failure; we clean and service both
  • Ductwork inspection, sealing, and repair — leaky ducts waste up to 30 percent of conditioned air; we seal, repair, and insulate duct systems to improve comfort and reduce energy costs
  • Thermostat and control upgrades — smart thermostat installation, zoning controls, and Wi-Fi-enabled systems for better comfort and lower energy bills
  • Commercial HVAC service — rooftop unit maintenance, split system repairs, and commercial refrigeration service for offices, restaurants, and light industrial facilities

Signs Your HVAC System Needs Service

HVAC Services We Offer

  • Heat pump installation
  • Central air conditioning
  • Furnace installation & repair
  • Duct sealing & replacement
  • HRV / ERV systems
  • Air quality assessments

Most HVAC failures are preceded by warning signs that get ignored until the unit stops completely — usually on the hottest day in August or the coldest night in January. Watch for these:

  • AC running constantly but the house never reaches the set temperature (low refrigerant, dirty coil, or undersized unit)
  • Unusual noises — squealing indicates a worn belt or bearing; banging suggests a loose or broken component
  • Visible ice on the refrigerant lines or evaporator coil (airflow blockage or refrigerant issue)
  • Hot or cold spots throughout the house that did not exist before
  • Sudden increase in electricity or gas bills without a change in usage
  • System is more than 12 years old and has not been serviced in the past two years
  • Humidity inside the home feels high even when the AC is running

BC Hydro and FortisBC Rebates for Heat Pumps

30%Avg. Energy Savings
AllMajor Brands Serviced
FreeInstallation Estimates

British Columbia offers some of the most generous HVAC rebates in Canada. The CleanBC Better Homes program provides rebates of up to $6,000 for air-source heat pump installations, and FortisBC offers additional rebates for qualifying equipment. Most of our heat pump installations qualify for at least one rebate program. We handle all the paperwork — you just need to approve the installation and collect the rebate cheque.

Serving Greater Vancouver Year-Round

HVAC Issues We Fix

No Cooling in Summer

A failed compressor, low refrigerant, or tripped breaker can leave you without AC. We diagnose fast and restore comfort the same day.

Noisy HVAC System

Banging, rattling, or squealing usually means a loose component or failing motor. We identify and repair the cause, not just the symptom.

Poor Air Quality

Dirty coils, clogged filters, and leaky ducts circulate allergens and bacteria. We clean and test your system for healthy indoor air.

High Energy Bills

An aging or undersized HVAC system can drive up utility costs. We assess and recommend upgrades with accurate payback analysis.

We provide HVAC installation and service across Vancouver, Burnaby, Richmond, Surrey, New Westminster, North Vancouver, West Vancouver, Delta, Coquitlam, and Port Moody. We schedule AC tune-ups in spring before the heat arrives and furnace checks in fall before temperatures drop. Emergency HVAC calls are dispatched 24/7. Call (778) 239-9199 to book a free in-home assessment.