Tankless Water Heater Installation – Ajax, ON
Rinnai & Navien authorized dealer serving Ajax and Durham Region. Endless hot water from $2,999 fully installed.
🏠 Ajax’s Local Tankless Experts
Hawk Home Services is based at 337 Frankcom St, Ajax — we’re your neighbourhood HVAC company, not a GTA chain. Fast response times, local knowledge, and no call centres.
✅ Rinnai PRO Authorized Dealer
As an authorized Rinnai dealer, every installation comes with the full manufacturer warranty — 15-year heat exchanger, 5-year parts, 5-year labour when registered.
💰 Rebates up to $1,000
Ajax homeowners upgrading to a high-efficiency tankless unit may qualify for Enbridge HER+ rebates. We handle the paperwork for you.
Tankless Water Heater Services in Ajax
🔧 New Installation
Replace your aging tank or install a brand-new tankless system. We handle gas line sizing, venting, electrical, and city permits — fully TSSA-certified and to Ontario Building Code.
🛠️ Repair & Service
No hot water? Error code flashing? Our technicians diagnose and repair all Rinnai and Navien models. We carry common parts on every service vehicle for faster same-day fixes.
📅 Annual Maintenance
Annual descaling and inspection extends your unit’s lifespan and maintains warranty coverage. Ajax’s hard water can cause mineral buildup — regular flushing is essential.
Rinnai vs. Tank Water Heater — Side by Side
| Feature | Rinnai Tankless | Traditional Tank |
|---|---|---|
| Hot Water Supply | ♾️ Unlimited, on-demand | ❌ Limited to tank size (40–60 gal) |
| Energy Efficiency | ⚡ 0.96–0.98 UEF (saves up to 32%) | 0.60–0.70 UEF (wastes ~30–40%) |
| Lifespan | 🕐 20+ years | ⚠️ 8–12 years |
| Space Required | 📦 Wall-mounted, suitcase-sized | Requires large floor space |
| Warranty | 15 yr heat exchanger / 5 yr parts | Typically 6 years |
| Monthly Cost | From $45+tax/mo (rent option) | Higher operating costs |
| Rebates Available | ✅ Yes — Enbridge HER+ eligible | ❌ Typically not eligible |
Rinnai SENSEI® Models We Install in Ajax
We carry the full Rinnai SENSEI® RX and RXP series — the most advanced condensing tankless water heaters available. All units are ENERGY STAR® certified and eligible for Ontario rebates.
Rinnai RX160iN
160,000 BTU · 9 GPM
Ideal for 2–3 bathroom homes
0.96 UEF Efficiency
Installed from $3,399
Rinnai RX199iN ⭐ Popular
199,000 BTU · 11 GPM
Ideal for 3–5 bathroom homes
0.96 UEF Efficiency
Installed from $3,999
Rinnai RXP199iN
199,000 BTU · Built-In Recirc Pump
Instant hot water at every tap
0.96 UEF Efficiency
Installed from $4,499
💵 Tankless Water Heater Rebates in Ajax
Ajax homeowners can significantly reduce the cost of a new tankless water heater through available government and utility rebates:
- Enbridge Home Efficiency Rebate Plus (HER+) — Up to $1,000 for upgrading to a qualifying high-efficiency tankless water heater
- Canada Greener Homes Initiative — Additional federal support may be available for eligible upgrades; a pre- and post-retrofit EnerGuide evaluation is typically required
- TSSA-Certified Installation Required — All rebate programs require installation by a licensed, TSSA-certified gas technician. Hawk Home Services meets all requirements
Ask our team for the current rebate amounts and eligibility criteria when you request your free quote. We’ll identify every dollar you’re entitled to.
How Our Ajax Tankless Installation Works
Step 1 — Free Quote
Call or book online. We assess your home’s hot water demand, existing gas line size, and venting situation to recommend the right unit and provide a written, no-surprise quote.
Step 2 — Permit & Scheduling
We handle the mechanical permit application with the Municipality of Ajax. Most installations are scheduled within 3–7 business days of quote acceptance.
Step 3 — Installation Day
Our Ajax crew arrives on time with your new unit pre-staged. We disconnect your old equipment, install and commission the new tankless unit, and run full system tests. Most jobs take 4–6 hours.
Step 4 — Warranty & Rebates
We register your unit for extended warranty and help submit your rebate application. You’ll be showering with endless hot water while we handle the paperwork.
Frequently Asked Questions – Tankless Water Heaters in Ajax
How much does tankless water heater installation cost in Ajax?
A complete tankless water heater installation in Ajax typically ranges from $3,000 to $5,500, fully installed. This includes the unit, venting, gas line work, and permit. The final price depends on unit size (BTU/GPM), venting requirements, and any gas line upgrades needed. After applying available Enbridge rebates, your net cost may be $500–$1,000 lower. Hawk Home Services provides free, written quotes — no hidden fees.
Is Rinnai better than Navien for Ajax homes?
Both Rinnai and Navien are excellent choices for Ajax homeowners. Rinnai (SENSEI® series) is known for build durability, a large service network, and the longest warranty in the category. Navien is popular for its built-in recirculation technology. We carry and install both — our technicians will recommend the best fit based on your household size, budget, and plumbing configuration.
Do I need a permit to install a tankless water heater in Ajax?
Yes. In the Municipality of Ajax, a mechanical permit is required for tankless water heater installations. Hawk Home Services manages the permit process on your behalf, ensuring your installation passes inspection and meets all Ontario Building Code and TSSA requirements.
How long does a tankless water heater last?
Rinnai tankless water heaters are designed to last 20+ years with proper maintenance — roughly twice the lifespan of a traditional tank water heater (8–12 years). Annual descaling is recommended in Ajax due to the region’s hard water, which can cause mineral buildup in the heat exchanger over time.
What rebates are available for tankless water heaters in Ajax?
Ajax homeowners can access the Enbridge Home Efficiency Rebate Plus (HER+) program for up to $1,000 when upgrading to a qualifying high-efficiency tankless unit. Federal programs through the Canada Greener Homes initiative may also apply. Ask our team about current rebate amounts and eligibility when you book your free quote.
Can I rent a tankless water heater in Ajax instead of buying?
Yes — we offer rental options starting from $45+tax/month for qualified customers. Rentals include installation, annual maintenance, and parts and labour coverage. Ownership (buy-out) options start from $2,999 fully installed. Our team will help you evaluate which option makes better financial sense for your situation.
Do you service Rinnai tankless water heaters in Ajax?
Yes. We service, repair, and maintain Rinnai tankless water heaters throughout Ajax. Common issues we fix include error codes (like Code 11 or Code 12 ignition failures), low hot water pressure, fluctuating temperatures, and annual descaling/maintenance. Call 855-429-4295 to book a service call.
Ready to Get Endless Hot Water in Ajax?
Call or text our Ajax team today for a free, no-pressure quote. We typically schedule within 3–7 days.
Hawk Home Services · 337 Frankcom St, Ajax, ON L1S 1R4 · TSSA-Certified Gas Fitters · Rinnai Authorized Dealer