Guelph · in business since 1990

Comfort, engineered for Guelph.

Heating, cooling and ventilation for Guelph homes and buildings, from a local mechanical contractor with more than 35 years in business.

Call 519-826-6955Get a free quote

Since 199035+ years in Guelph

Mechanical contractorHomes & buildings

Guelph-basedLocal and easy to reach

HeatingInstalls & repairs

CoolingAC & heat pumps

VentilationDuctwork & airflow

ControlsThermostats & zoning

35+years in business
5core services
2sectors: homes & buildings
What we do

The systems that keep buildings comfortable.

One experienced Guelph team for the heating, cooling and air in your home or building.

White radiator on a wall

Heating

Boilers, radiators and furnaces, installed and kept running all winter.

Ductless unit above a bright kitchen

Cooling & heat pumps

Air conditioning and ductless heat pumps that run quietly and efficiently.

Ductwork on a building wall

Ductwork & ventilation

Fresh, even airflow in every room.

Wall control panel beside a door

Controls

Thermostats and controls that hold the right temperature.

Exposed ductwork in a commercial ceiling

Commercial work

Mechanical service for shops, offices and larger buildings.

Why Guelph calls Weiss

Experience you can count on.

35+ years in business

Started in 1990 and still serving Guelph today.

Owner-led since 1990

A Guelph company with its president close to the work.

Done right the first time

Careful work that we stand behind.

Inside a building

One team for every system.

Heating, cooling, ventilation and controls all have to work together. Here's how the pieces of a typical commercial building connect.

ROOFTOP UNIT BOILER 1234
  1. Rooftop unitHeats, cools and brings in fresh air for the whole floor plate.
  2. Ductwork & ventilationSupply and return runs keep every zone comfortable and the air fresh.
  3. Boiler & radiatorsHot water heat for perimeter rooms and older buildings.
  4. ControlsThermostats and controls tell each system when to run, zone by zone.
How it works

Four simple steps.

01

Call us

Tell us what is going on.

02

We assess

An experienced tech checks your system.

03

Clear quote

A free quote in plain words.

04

Done right

Clean work, checked before we leave.

Bright white ductwork in a modern ceilingGuelph, Ontario
Guelph since 1990

A Guelph name you know

Serving Guelph homes and buildings since 1990.

Weiss Service Associates has looked after heating, cooling and mechanical systems around Guelph since 1990, with its president still at the helm.

GuelphGuelph/EramosaPuslinchRockwoodFergusEloraKitchener
Local & easy to reach

When you need us, we'll be there.

Call and talk to people who know Guelph buildings inside and out.

BookingCall to book a visit
Phone519-826-6955
Based inGuelph, ON
Call 519-826-6955
Free quote

Let’s get your building comfortable.

Free quotes on heating, cooling and ventilation across Guelph.

Call 519-826-6955Get a free quote
Get in touch

Ready when you are.

Phone519-826-6955
QuotesFree, no pressure
BookingCall to book a visit
Service areaGuelph & surrounding area
Call nowFree quote