★★★★★ 4.9/5125 Google reviews
(343) 227-3610Tap to call · 24/7
No heat? Don't wait in the cold. Dtech's licensed technicians deliver same-day furnace repair and high-efficiency replacements across Ottawa — 24/7, all makes and models, with honest upfront pricing.
Same-day & 24/7 · upfront pricing · no obligation
We repair & install all major furnace brands
No heat? We respond fast
When your furnace quits on a −25°C night, every hour counts. We diagnose fast, fix it right, and get your home warm again — with no surprise fees.
Our trucks are stocked with the parts that most commonly fail, so most Ottawa repairs are completed in a single visit.
No heat overnight or on a weekend? A licensed technician is on call around the clock during Ottawa's cold season.
You approve the price before we begin — honest, transparent quotes with financing available on replacements.
Our recent work
A few of the high-efficiency furnaces our licensed team has installed for Ottawa-area homeowners.
Repair or replace?
Not every furnace needs replacing. We give you a straight recommendation and upfront pricing either way.
Simple & fast
Tell us what's happening. For a no-heat emergency, we prioritize same-day and after-hours service.
A licensed technician pinpoints the issue and gives you an honest price — repair or replace — before any work.
Most repairs are done on the spot; replacements are typically installed within a day, with financing available.
Your local Ottawa team
Dtech Services is a local, family-run HVAC company — not a national call centre. When you call, you reach an Ottawa team that shows up when promised and stands behind every repair and install.
What Ottawa homeowners say
I had both my furnace and AC replaced by Dima and the folks at DTech, and I honestly couldn't ask for a better experience. He showed up when he said he would, did a clean and professional job, and even came by during unconventional hours. Highly recommended!
Outstanding HVAC company — highly recommend! DTech has proved themselves incredibly reliable for me, addressing issues for various systems, including heat pumps, furnaces, hot water tanks, and electrical. Always professional and knowledgeable.
Amazing experience with Dima and the DTech team! From the installation to the rebate paperwork, everything went smoothly. Highly professional and great communication throughout the entire process.
Good to know
For no-heat emergencies we aim for same-day service across Ottawa, and we offer 24/7 response during cold snaps. Most repairs are completed in a single visit because our trucks carry the parts that commonly fail — igniters, flame sensors, capacitors and control boards. Call (343) 227-3610 and a licensed technician will help restore your heat as quickly as possible.
Most furnace repairs fall between about $150 and $600 depending on the failed part and the labour involved. We provide honest, upfront pricing before any work starts, so there are no surprises. If a repair isn't worth it on an aging unit, we'll tell you and outline replacement options with financing.
As a rule of thumb, if your furnace is over 15 years old, needs a costly part like a heat exchanger, or your heating bills keep rising, replacement is usually the better value. A new furnace runs from about $3,500 to $7,500 installed, and we offer financing plus honest advice on whether a high-efficiency furnace or a heat pump best suits your home.
Yes. Dtech offers 24/7 emergency furnace repair across Ottawa and the surrounding 200 km region. If your furnace fails overnight or on a weekend during a cold snap, call (343) 227-3610 and a licensed technician will help get your heat back on as quickly as possible.
Yes. A furnace replacement often comes at the worst time — mid-winter. Dtech offers flexible financing that spreads the cost over manageable monthly payments, so you can restore reliable heat without draining your savings. We confirm all pricing upfront before any work begins.
Local furnace technicians
Dtech provides furnace repair, installation and replacement across Ottawa and the wider region. Explore your area:
Weighing a new furnace? Read our Furnace Replacement Cost Guide, or explore furnace services and financing options.
When the temperature drops and your furnace stops working, you need a heating company that answers the phone and shows up fast. Dtech Services is a local, licensed and BBB A+ accredited HVAC company providing furnace repair, installation and replacement across Ottawa and the surrounding 200-kilometre region. Our licensed technicians work on all makes and models — Carrier, Lennox, Trane, Goodman, KeepRite, Amana, Napoleon and more — and our trucks are stocked with the parts that most commonly fail, so the majority of no-heat calls are resolved in a single visit.
A furnace rarely breaks down at a convenient time, which is why we offer 24/7 emergency service throughout the Ottawa winter. Whether it's a failed igniter or flame sensor, a furnace that short-cycles, cold air from the vents, or a unit that won't start at all, we diagnose the problem quickly and give you an honest, upfront price before any work begins. Every visit includes combustion and carbon-monoxide safety checks, because a cracked heat exchanger or improper venting is a safety issue as much as a comfort one — we never leave an Ottawa home with an unsafe furnace running.
When a furnace is beyond economical repair, we help you decide what comes next without pressure. A high-efficiency gas furnace (95–98% AFUE) lowers your winter heating bills compared with an aging 80% unit, while a heat pump — or a dual-fuel system that keeps a gas furnace as backup — adds air conditioning and qualifies for up to $7,500 in 2026 rebates. A new furnace typically runs from about $3,500 to $7,500 installed, and our flexible financing spreads the cost over manageable monthly payments so a mid-winter replacement doesn't strain your budget.
With a 4.9-star rating across 125 reviews, transparent pricing, and technicians who respect your home and your time, Dtech is Ottawa's trusted choice for furnace service. Call (343) 227-3610 for immediate help, or request a free quote and we'll get your home warm again.
Same-day service, honest upfront pricing, and financing on replacements. Our licensed team is on call around the clock all winter.