90-88 Decorso Drive,
Guelph, ON, N1L0A1. CANADA.
+1-416-984-2700
Mon-Sat: 8:00-18:00
90-88 Decorso Drive,
Guelph, ON, N1L0A1. CANADA.
+1-416-984-2700
Mon-Sat: 8:00-18:00
Complete In-House Solutions for All Your Mechanical Needs
At A1 Custom Construction, we provide licensed and reliable plumbing, electrical, and HVAC services in Guelph, Ontario, and surrounding areas. Whether you’re building a new home, upgrading an existing system, or renovating a space, our certified technicians deliver safe, code-compliant, and energy-efficient mechanical work tailored to your project.
From bathroom plumbing and home wiring to furnace installation and AC repairs—our team ensures your home runs smoothly, safely, and efficiently all year long.
Full home plumbing installations
Bathroom and kitchen plumbing upgrades
Waterline repairs and rerouting
Fixture installation (faucets, sinks, showers, toilets)
Drainage and sump pump solutions
New electrical wiring and panel upgrades
Interior and exterior lighting installation
Rewiring for renovations or additions
Installation of outlets, switches, and smart controls
Safety inspections and surge protection
Furnace and air conditioner installation
HVAC system repairs and maintenance
Ductwork installation and upgrades
Thermostat and smart climate control setups
Energy-efficient heating and cooling solutions
Licensed, insured, and highly experienced technicians
One-stop solution for all mechanical systems
Strict compliance with Ontario Building Codes
Energy-efficient and modern system installations
Transparent pricing and honest service
📍 Address:
90-88 Decorso Drive, Guelph, ON, N1L 0A1, Canada
We proudly serve:
Guelph, Cambridge, Kitchener, Waterloo, and nearby Ontario communities.
Need a trusted expert for your plumbing, electrical, or HVAC needs?
Call A1 Custom Construction at +1-416-984-2700 to schedule your service today.
We’ll make sure everything in your home works the way it should—with quality you can count on.