Standby Generator Installation in Ajax

7.5 kW small standby (essential circuits only): $7,000–$10,000 installed. 14–18 kW mid-tier (most home loads, partial AC): $10,000–$13,000. 20–24 kW whole-home (all loads including central AC, EV charger): $13,000–$15,000. 26 kW premium (large homes, multiple AC zones): $15,000+. Pricing includes generator, transfer switch, gas line, concrete pad, ESA permit and inspection, and our project management. Excludes Enbridge service-line upsize when needed (+$1,200–$3,500).

Through our certified subcontractor partners we install: Generac Guardian 16/22/24/26 kW (market leader, Mobile Link smart monitoring, 5-year warranty), Kohler 14RESA / 20RESA / 26RESA (premium build, quietest at 65 dB, 5-year warranty), Cummins QuietConnect 13/20/22 kW (heavy-duty heritage, premium tier), Briggs & Stratton 20/26 kW (budget-friendly mid-tier). Most Ajax installs are 20–22 kW Generac because of price-to-feature ratio and parts availability. We size by Manual J load calculation per CSA C282.

No. Generator installation involves three regulated trades: (1) TSSA G2 gas-fitter to size, install, and pressure-test the gas line and connect the generator's gas inlet; (2) ECRA/ESA Master Electrician to install the transfer switch, tie into the main panel, run the generator output cable, and file the ESA Section 26 permit and inspection. RenoHouse holds NEITHER licence in-house. We coordinate certified subcontractor partners — typically a TSSA-licensed firm and an ECRA Master Electrician with generator experience. RenoHouse signs the construction contract, pulls the building permit, manages the project, performs the site work (concrete pad, landscape, exterior sealing), and warrants the wrap. The TSSA-permitted gas-fitter signs off on gas; the ECRA Master Electrician signs off on ESA Section 26.

Usually yes for 16–22 kW units on a standard residential 1/2" or 3/4" gas service — but verification is required. Larger 24–26 kW units often need a meter or service-line upsize from Enbridge, adding $1,200–$3,500 and 6–12 weeks. Our certified TSSA G2 gas-fitter partner sizes the gas line per the manufacturer's BTU draw and CSA B149.1 (Natural Gas and Propane Installation Code). We coordinate the Enbridge service review at the site-assessment stage so there are no schedule surprises.

An automatic transfer switch (ATS) isolates your home from the utility grid when power fails and connects your panel to the generator within 10–30 seconds — without it, the generator would back-feed the grid (a serious safety hazard for Ajax Hydro line crews) and could not start automatically. Whole-home 200A ATS: $1,200–$2,500. Sub-panel managed-load ATS (essential circuits only, smaller generator): $800–$1,500. Smart load-management modules (sheds AC or EV charger to keep generator within capacity): +$400–$900. ESA Section 26 inspection required.

Typical project: 4–8 weeks from contract signing to commissioning. Site assessment and equipment selection 1 week. Permit and Enbridge review (when needed) 2–6 weeks. Equipment delivery and concrete-pad pour 1–2 weeks. Install (gas-line trenching, ATS, panel tie-in): 3–5 days. ESA inspection and TSSA pressure-test 1 week. Commissioning, load-bank test, customer training: half-day. Larger installs requiring Enbridge service-line upsize add 6–12 weeks.

Ajax Zoning By-Law and CSA B149.1 set minimum distances from windows, doors, mechanical-air intakes, and property lines — typically 1.5–3.0 m depending on the equipment and configuration. Generators must be on a poured concrete pad (4" reinforced), oriented with exhaust away from windows and neighbour windows, and accessible for annual service. Most Ajax installs go on a side yard or back yard pad. We confirm setbacks and exhaust direction at the site assessment.

Modern liquid-cooled standby gensets run 65–72 dB at 7 m during full load — comparable to a quiet dishwasher next door. Ajax Noise Bylaw 591-2017 restricts continuous noise above 50 dB at the property line during overnight hours; weekly self-tests are scheduled within permitted daytime windows (typically 7am–7pm). Kohler 14RESA and 20RESA are the quietest at 65 dB, Generac Guardian 22 kW runs 67 dB, Briggs & Stratton typically 70–72 dB. Sound-dampening enclosures are standard on all premium models.

Manufacturer warranty (typically 5 years) requires annual oil and filter service plus a load-bank test every 2–3 years. Service cost: $200–$400/year through our HVAC partner or any qualified generator service contractor. Modern Generac/Kohler units self-test weekly and email diagnostic codes via Mobile Link / OnCue — homeowner sees impending faults months before failure. Battery replacement every 3–5 years (~$150).

Yes — Powerwall + standby generator hybrid is a common Ajax premium configuration. Powerwall covers the first 8–24 hours of an outage silently (no generator noise overnight) and the gas generator carries multi-day outages. Combined whole-home resilience stack: Powerwall ($14,000–$18,000 installed) + 22 kW generator ($13,000–$15,000) + smart automatic transfer logic = $30,000–$40,000 turnkey. Both Powerwall and Tesla certified install partners coordinate with us through the same project framework. ESA Section 26 covers both.