Tankless water heater installation in Vancouver — done right for your home’s specific setup.
For the right home, they deliver consistent hot water, improved efficiency, and a compact footprint. The key is making sure your home is properly suited for one.
We help homeowners determine whether this type of system is the right fit for their household, installs it correctly when it makes sense, and services it properly over the long term. Every recommendation is based on assessment first, not upselling.


May 27, 2024
Just installed a Navien 240A2 Tankless Water Heater, and our customer couldn't be happier! 🚿✨ This compact powerhouse is already making a huge difference. Endless hot water, energy-efficient, and it saves so much space compared to the existing hot water tank. If you’re thinking of upgrading, we highly recommend it. Contact us today to learn more and schedule your installation!


April 19, 2022
Tankless Water Heaters require annual servicing to ensure their running in tip-top condition. One of the service items is flushing the heat exchanger with a recommended descaler chemical such as Haymaker.Does your tankless water heater require servicing?

Replacing a traditional tanked unit with an on-demand system is a smart upgrade for many homes. When installed correctly, it delivers consistent hot water, improved efficiency, and long-term reliability.
We approach installation with a clear focus on proper system matching and performance. Each project begins with an evaluation of household hot water demand, including bathrooms, fixtures, and peak usage, to ensure the system is correctly sized.
During installation, we address the details that make these systems perform as intended:
By treating the replacement as a full system upgrade rather than a simple swap, wel ensure the new setup integrates seamlessly with the home and performs reliably from day one.
When an on-demand system is not working properly, accurate diagnosis is essential. We provide professional repair and service focused on identifying the cause of the issue and restoring reliable hot water.
These systems include built-in diagnostics, and many problems can be resolved through proper servicing rather than replacement. Common issues include no hot water, inconsistent temperatures, error codes, or shutdowns during peak use.
Service typically includes:
In many cases, performance problems are caused by maintenance or configuration issues rather than system failure. Professional service helps extend system life and ensures safe, efficient operation in the home.


Regular maintenance is essential to keep on-demand systems operating efficiently and reliably. Skipping service can reduce performance and shorten system lifespan.
In Metro Vancouver, mineral content in the water can lead to scale buildup inside the heat exchanger. Annual flushing and inspection help prevent:
Ongoing maintenance helps ensure consistent hot water, protects internal components, and safeguards the homeowner’s investment.
The cost of installing an on-demand hot water system reflects how well it is matched to the home. Each installation is tailored to household demand, ensuring consistent performance and long-term reliability. Our pricing is clearly explained in advance, with no surprises during installation.
Pricing is influenced by factors such as:
While these systems often have a higher upfront cost than traditional tanks, many homeowners choose them for the long-term benefits of efficiency, performance, and extended lifespan when professionally installed.

Homeowners often choose on-demand hot water systems for the consistent performance and efficiency they provide. When properly installed, they deliver hot water without the limitations of a traditional storage tank.
These systems are a good fit for homes that value:
For households with higher demand or overlapping hot water use, this type of system offers a practical and long-term solution when matched correctly to the home.
We recommend Navien and Rinnai tankless water heaters.
We chose these brands primarily because of their exceptional customer support. When customers need hot water restored quickly, having reliable manufacturer support is critical. Both brands provide:
With Navien and Rinnai, you can count on us to quickly resolve any issues, and we have established relationships with local reps who can help locate parts or provide solutions even when standard suppliers might have delays. This level of support ensures your tankless system gets back up and running as quickly as possible.
A tankless system heats water only when it is needed rather than storing hot water in a tank. When a fixture is turned on, water is heated on demand and delivered directly.
With proper installation and regular maintenance, these systems typically last longer than traditional tank units. Lifespan depends on water quality, usage, and ongoing service.
They can be a good investment for homes with higher hot water demand or where efficiency and space savings are priorities. They are not the best option for every household.
A properly sized system can support multiple fixtures at the same time. Undersized systems may struggle during peak demand, which is why correct sizing is critical.
They can work well in condos, but electrical capacity, venting options, and strata requirements must be reviewed before installation.
Most residential systems should be serviced and flushed once per year, especially in areas with mineral-heavy water.
Most systems require electricity to operate, including gas models. During a power outage, hot water is typically unavailable unless backup power is provided.
We provide tankless water heater services in Vancouver and across the Lower Mainland / Greater Vancouver area, including:
If you’re just outside this list, ask us—we may still be able to help or recommend a trusted partner.

Contact Straight Up Mechanical today for your plumbing needs
Surrey • Burnaby • Pitt Meadows • Maple Ridge • Delta • Richmond • Mission • Langley • Abbotsford • Vancouver • Port Coquitlam • Coquitlam • New Westminster
Straight Up Mechanical Ltd
309 – 19950 88th East Avenue
Langley, BC
V1M 0A5
Excellent rating
Based on 169 reviewsTrustindex verifies that the original source of the review is Google. Very reliable, on time, thorough professional. Very good to deal with. Susan PallettTrustindex verifies that the original source of the review is Google. We have been working with Straight Up Mech. for a short period as we further grow our business and appreciate the attention to detail and reports we receive. Great working with you! Andrea FarinaTrustindex verifies that the original source of the review is Google. Just wanted to share how amazing the service was from Straight up mechanical. The appointment was required on short notice but was met with haste. The report provided after the analysis was very detailed. The level of service and professionalism provided by Nick and Willem was nothing short of above and beyond. I would certainly recommend anyone to give them a try for your plumbing needs. Jay WongTrustindex verifies that the original source of the review is Google. We noticed drain flies in the basement from time to time and suspected they were caused by the sump pump. We contacted Willem for an inspection, and he quickly diagnosed the issue. He provided a temporary solution while we waited for the cracked tee connecting the main stack serving the sump pump to be fixed. Willem then sent Briggs, the technician, to complete the job. Briggs was very efficient and thorough. We are extremely happy with the work done, and the cost was very reasonable." A AuTrustindex verifies that the original source of the review is Google. I have not used the service but look what I got in mail today! You made my day! Very creative! Thank you for the gift! 😂 👏 Dmitri DudchenkoTrustindex verifies that the original source of the review is Google. Didn’t use their services however, Will was very accommodating today. We were doing a job and I needed 3 of his vehicles moved up. He completely understood and quickly did it with no attitude. Well mannered employees are hard to find and he was impressive. Thanks again Will! Jay WTrustindex verifies that the original source of the review is Google. Had a leaky shower and made a call in the morning. They dispatched a guy in the same afternoon. As soon as parts came in, it was fixed. No issue, straight forward and quick action. I didn't have time to call around for prices but I think it was right. Highly recommended. Yoshi NishiokaTrustindex verifies that the original source of the review is Google. Super friendly, super knowledgeable and super quick! The communication from start to finish was amazing - this is definitely our go-to Team for all things plumbing and gas. Octavia YungTrustindex verifies that the original source of the review is Google. I have used Straight Up Mechanical many times to help my clients in the restaurant industry. Willem and his crew have been amazing and I get rave reviews from my clients about how professional and "straight up" he is. Thanks for making me look good Willem! Trevor RurakTrustindex verifies that the original source of the review is Google. Amazing service! Friendly staff. Couldn’t recommend enough. Marko Gavric
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