
Some of our top rated plumbers in Oshawa
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Need to find plumbers in Oshawa, Ontario? HomeStars has several Oshawa plumbers who are ready and eager to help! Post your project for free, and available plumbers in our Oshawa directory can register their interest. With HomeStars, it’s easy to then read reviews, receive and compare multiple quotes, and decide who to hire, all in one convenient place!

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4.9
Our plumbers in Oshawa, are rated 4.9 out of 5 based on 495 reviews from homeowners like you.
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Plumbers in Oshawa offer a range of services tailored to the city’s mix of older neighbourhoods and newer developments. Local demand is also influenced by seasonal weather and proximity to Lake Ontario, which can impact drainage and moisture levels.
Here are some of the most common plumbing services in Oshawa:
It’s easy to get your plumbing needs sorted on HomeStars. Just post your project, and available pros will register their interest. If you prefer, you can visit our directory of plumbing pros to browse through options and connect directly.
Oshawa’s plumbing work is shaped by local housing conditions, lakeside proximity, and infrastructure considerations that influence how systems are installed and maintained.
Finding plumbers in Oshawa can be challenging. Many Oshawa homes near Lake Ontario or in low-lying areas are prone to basement flooding and require specialized drainage or pump solutions, so picking the right plumber is important.
That’s where HomeStars comes in: we’ve streamlined the process so that you can easily connect with available plumbers in Oshawa who can understand your specific needs quickly.
You can get started with just a few simple steps:
When joining HomeStars, pros undergo checks at registration - such as ID documents, company details, certifications for regulated jobs and skill assessments - allowing you to hire with confidence.
Extra peace of mind with the HomeStars Confidence Program
The HomeStars Confidence Program is designed to give you added confidence when hiring through our platform. If your job qualifies under the Program and we determine that a claim meets the Program requirements, HomeStars may cover what you owe the Pro on an eligible job with a quote of up to CAD $10,000, in line with our terms and conditions.
The costs of plumbing services in Oshawa depend on the type of job, urgency, and materials required. Hourly rates for Oshawa plumbers usually fall between $80 and $170, and simple jobs are sometimes offered at flat fees. Emergency or after‑hours calls can increase the total significantly.
Here are some typical costs for common plumbing services in Oshawa:
For more detailed information on costs to expect, our guide to plumbing costs in Oshawa should help. If your plumbing needs are part of a larger renovation project, our guides to bathroom renovation costs or kitchen renovation costs in Oshawa might be what you’re looking for.
HomeStars Tip: We suggest that you clarify with your Oshawa plumber what’s included in their estimate, and that you request everything be detailed in a written quote. This supports transparency and avoids misunderstandings.
Before hiring a plumber in Oshawa, it helps to ask key questions to ensure the work is safe, compliant, and suited to your home’s needs. Here are some questions you can ask:
Do you have experience with my type of plumbing system?
Homes in Oshawa often use a mix of plumbing materials reflecting their age and any renovations. Older properties may still have galvanized steel supply lines or cast iron drain pipes, which can corrode or develop leaks over time, while newer builds and updated homes generally use copper or PEX for water supply and ABS or PVC for drainage, offering improved durability and easier maintenance.
Are you licensed and do you have liability insurance?
Confirming insurance protects you in case of accidents or property damage, while proper licensing ensures the plumber is authorized to perform work under Ontario regulations and meets local standards.
Are you familiar with Oshawa’s plumbing codes and permits?
Plumbing work may require specific permits and inspections. Ensuring the plumber knows local regulations helps avoid fines or rework.
Do you handle emergency plumbing services?
Frozen or burst pipes are common in winter. Knowing a plumber can respond quickly prevents major water damage.
How do you handle plumbing systems in homes affected by seasonal flooding or high groundwater levels?
Oshawa’s proximity to Lake Ontario and low‑lying areas can cause basement water issues, so a plumber experienced with sump pumps, backwater valves, and proper drainage solutions can help prevent damage.
Can you advise on upgrades to improve water efficiency or reduce utility costs in Oshawa homes?
Local plumbers can recommend and install low‑flow fixtures, tankless water heaters, or other water‑saving systems that work effectively with Oshawa’s older and newer plumbing setups while complying with local building standards.
Ensure the plumber carries proper licensing, liability insurance, and credentials to comply with Ontario regulations. This protects you and ensures work is performed to local standards. Professionals listed on HomeStars usually display their licensing and insurance details for transparency.
Some jobs, such as sewer line replacement or altering water supply lines, may require permits. Your chosen plumbing company in Oshawa can tell you which permits are needed and often handle the application process for you.
Yes. Plumbers in Oshawa can identify problems with your water heater, mixing valves, or plumbing layout. They can also advise whether a repair or replacement is the best long-term solution.
Many homes in Oshawa, particularly those in low‑lying areas or near Lake Ontario, are prone to basement flooding during heavy rain or snowmelt. Installing a sump pump or backwater valve can help manage groundwater and protect your basement from water damage. You can use HomeStars to find local plumbers experienced in sump pump installation and maintenance.
Most plumbing contractors and companies in Oshawa provide warranties on labour and sometimes on materials, depending on the manufacturer. Review the warranty terms to understand what is covered and for how long. You can confirm these details when discussing your project with Oshawa plumbers on HomeStars.
If a pipe bursts, immediately turn off the main water supply to prevent extensive water damage. Winter in Oshawa can lead to frozen or burst pipes, especially in older homes with uninsulated plumbing. Contact a local plumber quickly to repair the pipe and assess any related water damage before it worsens.