Guelph: 519-993-0494 K/W Cambridge: 1-800-756-5035

Frequently Asked Questions

Answers from the original Cornerstone site, carried forward and organized for plumbing, HVAC, electrical, water heaters, water treatment, generators, EV chargers, and financing.

Need help now?

For service in Guelph, call 519-993-0494. For Kitchener, Waterloo, and Cambridge, call 1-800-756-5035.

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General

  • What trades does Cornerstone cover?

    Cornerstone Trade Solutions provides plumbing, HVAC, and electrical service under one company. That helps homeowners, businesses, builders, renovators, and property managers avoid juggling separate contractors when a job overlaps more than one trade.

  • What areas do you serve?

    Cornerstone serves Guelph, Kitchener, Waterloo, Cambridge, Wellington County, Waterloo Region, and nearby communities. Call 519-993-0494 for Guelph or 1-800-756-5035 for Kitchener, Waterloo, and Cambridge.

  • Are you licensed and insured?

    Yes. Cornerstone is fully insured, locally owned since 2009, and operates with licensed plumbing, HVAC, gas, and electrical professionals. The original Wix site listed TSSA licence 000303270 and ESA licence 7013341.

  • How do I book a service call?

    Use the online booking form, email service@cornerstonetrades.ca, or call 519-993-0494 for Guelph and 1-800-756-5035 for Kitchener, Waterloo, and Cambridge.

  • Do you handle both residential and commercial work?

    Yes. Cornerstone works on residential, commercial, multi-unit, restaurant, renovation, construction, and property-management projects.

Plumbing

  • What plumbing services do you offer?

    Services include fixture repairs, drain cleaning, hydro-jetting, camera inspections, pipe locating, backflow testing, water heaters, gas piping, BBQ gas lines, water softeners, water treatment, waterproofing, construction plumbing, and multi-unit plumbing service.

  • Can you inspect a drain before recommending a repair?

    Yes. Cornerstone can use snaking equipment, hydro-jetting, camera inspections, and pipe locating where appropriate to determine whether the issue is a blockage, roots, damaged pipe, recurring obstruction, or another problem.

  • Do you install and service water softeners?

    Yes. Cornerstone repairs, replaces, and installs water softeners and water treatment systems and is an Excalibur Water Systems dealer.

  • How do I know if I need water treatment?

    Common signs include hard water spots, dry skin, dull hair, cloudy dishes, scale buildup, low water pressure, salty taste, rotten-egg odour, or a water softener that is not using salt properly.

  • Do you provide basement waterproofing?

    Yes. Cornerstone provides basement waterproofing for water seepage, damp walls, foundation cracks, hydrostatic pressure, sump systems, drainage issues, mould risk, and long-term water protection.

  • Can you handle construction plumbing?

    Yes. Cornerstone supports renovations, additions, custom homes, restaurants, commercial renovations, high-rise repairs, boiler installations, gas work, and full rough-ins.

Water Heaters

  • What water heater services do you provide?

    Cornerstone services, repairs, replaces, and installs hot water tanks, tankless water heaters, and heat pump water heaters.

  • When should I replace my water heater?

    Replacement may be worth considering if the unit is old, leaking, unreliable, inefficient, making rumbling or popping sounds, or no longer meeting the home’s hot water needs.

  • Do you install tankless water heaters?

    Yes. Cornerstone works with tanked and tankless water heaters and can compare options based on hot water usage, fuel type, venting, space, water hardness, and budget.

  • Can water quality affect my water heater?

    Yes. Hard water and mineral buildup can affect water heater performance and lifespan. Cornerstone also provides water softener and water treatment services to help protect the broader plumbing system.

  • Do you offer lease-to-own water heaters?

    Yes. Eligible water heater installations may qualify for lease-to-own options with predictable monthly payments, maintenance and repair coverage, warranty protection, buy-out options, and a path to ownership.

HVAC

  • What HVAC services do you offer?

    HVAC services include furnaces, air conditioners, humidifiers, HRV and ERV systems, boilers, tanked and tankless water heaters, radiant in-floor heating, fireplaces, hybrid heat pumps, ductwork, bathroom fans, range hoods, and maintenance.

  • Should I repair or replace my furnace or air conditioner?

    The right answer depends on age, condition, repair cost, efficiency, comfort, warranty status, and how often the equipment is failing. Cornerstone can inspect the system and explain whether repair or replacement is the better long-term choice.

  • Do you install hybrid heat pumps?

    Yes. Hybrid heat pumps can heat and cool a home while using a gas furnace backup in colder Ontario weather. They can reduce energy use and operating costs when designed and installed correctly.

  • Can you help with ductwork during a renovation?

    Yes. Cornerstone can help with ductwork, bathroom fans, range hoods, humidifiers, ventilation, and heating or cooling changes during renovations and additions.

  • Do you install fireplaces?

    Yes. Cornerstone offers fireplace installation and service, including planning for gas line sizing, venting, clearances, framing, electrical requirements, finishing details, and code compliance.

  • How often should I service my furnace?

    Most manufacturers and HVAC professionals recommend annual service before heating season. Regular maintenance helps identify small issues, improve efficiency, and extend equipment life.

Electrical

  • What electrical services do you offer?

    Electrical services include panel changes, panel upgrades, knob-and-tube replacement, lighting, frequency drives, door openers, data wiring, exit lighting, EV chargers, generators, equipment controls, and commercial electrical work.

  • When should I upgrade my electrical panel?

    A panel upgrade may be needed if breakers trip frequently, lights flicker, the panel is full, the panel is outdated, or you are adding high-demand equipment such as an EV charger, heat pump, hot tub, generator, addition, or basement renovation.

  • Do you install EV chargers?

    Yes. Cornerstone installs Level 2 EV chargers and reviews panel capacity, charger placement, wiring requirements, permits, inspection needs, and future electrical load.

  • Do you replace knob-and-tube wiring?

    Yes. Cornerstone can review older wiring and explain whether a full replacement, partial replacement, or renovation-specific scope is appropriate for safety, insurance, and code requirements.

  • Do you install generators?

    Yes. Cornerstone installs generator connections and transfer switches for portable and standby generator systems. Proper transfer equipment is required to prevent unsafe back-feeding into utility lines.

Financing and Offers

  • Do you offer financing or lease-to-own options?

    Yes. Eligible projects and equipment may qualify for financing or lease-to-own options, including furnaces, air conditioners, heat pumps, water heaters, EV chargers, and generators.

  • What does lease-to-own mean?

    Lease-to-own helps reduce large upfront costs by spreading payments over time. It is designed to provide a path to ownership, with terms and buy-out options confirmed during consultation.

  • Are maintenance and repairs included?

    For eligible lease-to-own equipment, maintenance, repairs, and warranty protection may be included during the agreement term, subject to the final program terms.

  • Do you help with rebates and special offers?

    Yes. Cornerstone can review current lease-to-own options, buy-out policies, flexible ownership options, annual AC service checks, heat pump incentives, water heater offers, and rebate documentation where applicable.

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