★★★★★ 4.9/5125 Google reviews
(343) 227-3610Tap to call · 7 days
Leaking tank? No hot water? Dtech's licensed technicians replace tank and tankless water heaters across Ottawa — often the same day — with upfront written pricing, removal of your old unit, and financing available.
Same-day & next-day · upfront pricing · no obligation
Dtech replaces tank and tankless water heaters across Ottawa, usually the same or next day. A new tank water heater typically costs $1,800–$3,500 installed; a tankless unit typically runs $3,500–$6,500. Every price is upfront and in writing, removal of your old tank is included, and financing is available. Licensed, insured, BBB A+, 4.9★ (125 reviews). Call (343) 227-3610.
We install & service all major water heater brands
No hot water? We move fast
A cold shower is miserable — a leaking tank can damage your basement. We respond quickly, give you a clear written price, and get your hot water back without surprises.
We keep common gas and electric tank sizes available, so most Ottawa replacements are done the same or next day.
Gas, electric and on-demand units from Rheem, Bradford White, A.O. Smith, Navien, Rinnai and more — sized for Ottawa's cold winter water.
You approve a written price before we begin. Old-tank removal is included, and financing is available on every replacement.
Our recent work
A few of the tank and tankless water heaters our licensed team has installed for Ottawa-area homeowners.
Is it time?
Most tank water heaters last about 10 to 12 years in Ottawa. If you notice any of these, book an inspection before a small leak becomes a flooded basement.
Tank or tankless?
Both are good choices — it depends on your household, your space and your budget. We size both options and show you the numbers.
Upfront pricing
Typical installed price ranges for Ottawa homes in 2026. Your exact price depends on size, fuel, venting and any code upgrades — and you'll have it in writing before we start.
Gas or electric, 40 to 60 gallons, installed.
High-efficiency on-demand unit, installed.
When a repair makes more sense than a replacement.
Spread the cost with financing from 36 to 120 months — 0% promotional windows available at certain times of year.
Renting vs. owning
Many Ottawa households have rented their water heater for years — and keep paying a monthly fee long after the tank's value has been paid many times over. Owning your next tank or tankless unit can lower your long-term cost and gives you the choice of brand, size and installer.
Simple & fast
Tell us what's happening — leak, no hot water, or a planned upgrade. We'll book the earliest available time.
A licensed technician checks your venting, gas or electrical supply and hot-water needs, then gives you a firm price.
We remove the old unit, install and test the new one, and show you how it works before we leave.
What Ottawa homeowners say
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.
We want to thank the DTech team for the installation of water softener in our home. This isn't the first time we've used DTech services. Each time, the service is very professional and fast, and the staff is very professional, pleasant, patient, and polite. We 100% recommend this company.
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!
Good to know
In most cases we can replace a failed tank water heater the same day or the next day, because we keep common sizes of gas and electric tanks available. Tankless installations usually take a day once the unit is on site. If you have no hot water right now, call (343) 227-3610 and we'll give you the earliest available time.
A standard tank water heater typically costs about $1,800 to $3,500 installed, depending on size, fuel type and venting. A tankless (on-demand) water heater typically runs about $3,500 to $6,500 installed, depending on the model, gas-line sizing and venting. We give you a written, upfront price before any work begins.
A tank is the lower-cost, simpler replacement and suits most households. Tankless is better if you want endless hot water, run out often, need to free up space, or want lower standby energy losses over a longer service life. We'll size both options for your home and show you the price difference in writing.
Common signs include water pooling around the base, rust-coloured hot water, rumbling or popping noises, running out of hot water faster than before, and a tank that's more than 10 to 12 years old. A leaking tank should be replaced quickly, before it fails completely.
Yes. Many Ottawa homeowners rent their water heater and pay a monthly fee indefinitely. Owning your own tank or tankless unit can cost less over its lifespan. Before switching, check your rental agreement for any buyout, removal or return terms — we'll walk you through the process and can install your new unit once you're ready.
Yes. Removal and responsible disposal of your old tank is included with every replacement. If your old unit is a rental, we'll explain how the rental company's return process typically works so you can arrange it.
Yes. Dtech offers financing through third-party lenders with terms from 36 to 120 months, and 0% promotional windows at certain times of year. We'll show you the cash price and monthly payment side by side.
Local water heater technicians
Dtech installs and repairs tank and tankless water heaters across Ottawa and the wider region. Explore your area:
Comparing options? Read our Tankless vs Tank Water Heater Guide, or explore water heater services and financing options.
When your hot water runs cold, a leak appears around the base of the tank, or your water heater starts rumbling like a kettle, you need a company that answers the phone and shows up quickly. Dtech Services is a licensed, insured and BBB A+ accredited Ottawa company that replaces tank and tankless water heaters across Ottawa — Kanata, Barrhaven, Nepean, Orléans, Stittsville, Gloucester and the surrounding region. We install gas and electric tanks from Rheem, Bradford White, A.O. Smith and GSW, and tankless models from Navien, Rinnai and Bosch, and we keep common tank sizes available so most no-hot-water calls are resolved the same or next day.
Choosing the right replacement is about more than matching the old tank. Ottawa's groundwater is very cold in winter — often just a few degrees above freezing — which means a water heater has to work much harder from December to March. We size every tank and tankless unit for your household's peak demand and Ottawa's winter inlet temperatures, check gas-line capacity and venting, and install to code with the correct expansion tank, shut-offs and safety valves. Every installation is tested for leaks, proper venting and safe operation before we leave.
Many Ottawa homes still rent their water heater and pay a monthly fee year after year. If you're tired of renting, owning your next tank or tankless unit can lower your long-term costs. Check your rental agreement for any buyout or return terms first; we'll explain the process and install your new unit when you're ready. With upfront written pricing, flexible financing over 36 to 120 months, and a 4.9-star rating across 125 reviews, Dtech makes water heater replacement simple. Call (343) 227-3610 for fast service, or request a free quote online.
Same- or next-day replacement, honest upfront pricing, old tank removed, and financing available. Tank or tankless — we'll help you choose.