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Who This Service Is For
Galaxy Plumbing's hot water tank repair service is built for:
- Homeowners with no hot water or lukewarm water: whether the cause is a failed thermocouple, a tripped element, a pilot that won't stay lit, or a unit that's reached end of service life
- Owners of gas hot water tanks: that require a TSSA-certified technician for thermocouple, gas valve, burner, and pilot assembly work - unqualified gas appliance work creates carbon monoxide and fire risks
- Homeowners with rumbling, popping sounds, or discoloured water from the hot tap: signs of sediment accumulation or internal tank corrosion that need to be assessed before they become a water damage event
- Homeowners whose tank is over 10 years old who want an honest assessment of whether repair or replacement is the more cost-effective path
- Any GTA homeowner searching for same-day hot water tank repair without guesswork on the cause
If your tank is leaking, actively discharging from the pressure relief valve, or you have no hot water at all, contact Galaxy Plumbing immediately. Our emergency repairs team responds 24/7 across Mississauga and the GTA.
What This Service Includes
Galaxy Plumbing's hot water tank repair service covers:
- Thermocouple and thermopile replacement: the most common failure point in gas tanks with standing pilots; a failed thermocouple prevents the pilot from staying lit and stops the burner from firing; repairable in a single visit by TSSA-certified technicians
- Gas valve replacement: required when the burner fails to operate despite a functioning thermocouple; TSSA certification and venting confirmation required after installation
- Heating element and thermostat replacement: for electric tanks where one or both elements or their controlling thermostats have failed; technicians test all components before replacing any individual part
- Pressure relief valve replacement: a weeping, dripping, or actively discharging T&P valve requires prompt replacement; our technicians carry common sizes and configurations on every vehicle
- Anode rod replacement: the single most effective maintenance step for extending tank life; replacing the rod every three to five years prevents the internal corrosion that leads to tank failure
- Sediment flush: effective when mineral accumulation is moderate; our technicians advise honestly on whether the tank's condition warrants a flush or whether replacement is the better decision
- Full hot water tank replacement: traditional tank and tankless options available when repair is not the right answer; see our water heaters service for the full scope of systems we installended; municipal water quality reports reflect water at the treatment plant, not at your tap after aging infrastructure and household pipes
- Before-during-after documentation: on every repair, with upfront pricing before any work begins
How It Works
Step 1: Diagnose Before Recommending
Contact Galaxy Plumbing to book a same-day diagnostic visit. For complete hot water failures or active leaks, our emergency repairs team responds immediately. For non-urgent assessments, we confirm a specific arrival window. Technicians test both elements and both thermostats on electric units and all gas components on gas units before recommending replacement of any individual part.
Step 2: Repair or Replacement, Explained Clearly
You receive a clear explanation of what failed and what it will cost to repair, alongside an honest assessment of whether the tank's age and condition make repair or replacement the more practical long-term decision. We don't steer clients toward more expensive solutions when a straightforward component repair is genuinely the right answer.
Step 3: Same-Day Repair With Parts on the Truck
Most component replacements - thermocouples, heating elements, thermostats, pressure relief valves are completed within one to two hours. Common parts are carried on every service vehicle. All gas appliance work is performed to Ontario code by TSSA-certified technicians. New installations include all required permits. Before-during-after documentation is standard.
When Repair Makes Sense vs. When to Replace
Repair is usually the right call when:
- The tank is under 10 years old and the failure is a single repairable component
- The tank interior shows no signs of corrosion (no discoloured water from the hot tap)
- The tank body is structurally sound, not weeping or actively leaking
Replacement becomes the more practical choice when:
- The tank is over 10 years old and experiencing its first significant failure
- The tank interior shows corrosion, indicated by rust-tinged hot water at the tap
- Multiple components have failed within a short period
- The tank body is weeping or actively leaking, tank body failure is not repairable
- Sediment accumulation is severe enough to have significantly reduced capacity
For a full overview of tank and tankless replacement options, visit our water heaters service.
Benefits
Choosing Galaxy Plumbing for hot water tank repair in Mississauga means:
- Accurate diagnosis first: technicians confirm the cause before recommending any component replacement or full tank swap
- TSSA-certified gas technicians: with active registration for all gas appliance component work - the legal requirement in Ontario and a genuine safety matter
- Parts on every truck: most common repairs completed same-day without a second visit for parts
- Honest repair vs. replace guidance: if the tank isn't worth repairing, we'll say so clearly and explain why
- Permit-compliant installations: for all new gas tank replacements, protects you at resale
- 24/7 emergency availability for complete hot water failures and active leaks
According to Natural Resources Canada, operating costs for a sediment-choked tank increase significantly with age, making early anode rod and sediment maintenance the most cost-effective investment a GTA homeowner can make in their hot water system.
Diagnosing Your Hot Water Tank: Symptoms and Causes
Our blog post on no hot water causes covers each of these patterns in detail and what they typically mean for repair vs. replacement decisions.
No hot water? Contact Galaxy Plumbing for same-day hot water tank repair across Mississauga and the GTA. TSSA-certified. Parts on the truck. Upfront pricing.
It's all love, baby.
We love what we do.
It's pretty much all because of you.
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Nancy Pascua ★★★★★
Just fantastic service. Spent extra time trying to figure out a mysterious water leak. Super professional and knowledgeable. Gave me options and time to decide how to proceed. Would use again and would recommend to anyone.
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Bev Battaglia ★★★★★
Fantastic job by Galaxy Plumbing! Appreciated the professionalism and informative service from this team. I had a toilet and sink back up issue which the technician was able to come and resolve the same day I called. At the same time, recommendations were shared to prevent similar issues in the future. Great attitude and top notch workmanship!
Jason Lobo ★★★★★
Rob's service from start to finish was exceptional. Spoke with him about getting a dripping bathtub faucet fixed. Walked me through how to remove the valve cover. Also correctly guesses that it was a water cartridge issue. Booked a plumber the next day and sent me a text with the ETA. The communication through out was fantastic. For some one who has never booked a plumber for a smaller job, understand that it's not cheap. And you have to consider the cost of parts if not covered under warranty. Would definitely recommend Rob and use his company again if needed.
William Hucker ★★★★★
Galaxy Plumbing Inc has been our go-to plumbing solutions contractor for over 2 yrs, on my job-sites and in my home. Their knowledge and professionalism is hard to beat. They are my first call and I am always impressed with the workmanship and honesty.
If you are reading this and considering their services, just call them. Do not hesitate. The best there is.
If you are reading this and considering their services, just call them. Do not hesitate. The best there is.
Starr Shah ★★★★★
Rob did a wonderful job when I called to have him service/repair a leaking toilet. He was very responsive, punctual, efficient, and made sure he left the job clean. Will definitely call on him again for any future plumbing issues.
Madhavi Wadkar ★★★★★
We had our old plumbing stack replaced, and new connections set up for a re-model. Rob was great, not only did he do what we needed done, but he made some great suggestions and recommendations to make things easier for us. Very knowledgeable, professional and a pleasure to work with, we will be using Galaxy again and soon.
Trevor Arnold ★★★★★
From start to finish Rob was a pleasure to deal with. Responded to my initial inquiry right away. Communication was fantastic and the actual work even better. Showed up on time and was friendly. Finished the job in a VERY timely manner. I would suggest anyone looking for plumbing work to be done use his services as well, you won't be disappointed!
Christine ★★★★★
Excellent service! Rob was super responsive and extremely respectful of our space. We had our toilet replaced by him and he found us a nice one with a strong flush. His work was very clean and really well done. I didn’t have to worry about a thing - I will definitely use him again and have already recommended him to friends and family. He’s efficient, responsive, respectful, clean, on time, and knows what he’s doing.
aniko vargha ★★★★★
I would highly recommend Galaxy Plumbing.
Rob was extremely Proffessional and quickly reviewed the job and fixed it on budge, actually slightly lower than the estimate!
He was responsive and got back to me within a day of my request to set up an appointment.
If you have any plumbing issues call Rob, you won’t be disappointed.
Rob was extremely Proffessional and quickly reviewed the job and fixed it on budge, actually slightly lower than the estimate!
He was responsive and got back to me within a day of my request to set up an appointment.
If you have any plumbing issues call Rob, you won’t be disappointed.
Elaine Allen-Milne ★★★★★
Rob was great. On time quick to assess and fix the problem and also point out some other issues That should be addressed. He explained everything really well. Will definitely use him again. Definitely recommend
Maz Mozaffari ★★★★★
This is the 2nd time we've used Rob and his company Galaxy Plumbing for various plumbing needs. They have always been very responsive, helpful, and knowledgeable. In our most recent call out, Rob was very thorough in explaining the potential causes to our new plumbing issues, and provided a number of possible solutions without trying to pressure us to take on any unnecessary work. He was very careful to properly check and verify that the issue was resolved before he left. This was much appreciated. We would not hesitate to use Rob and his company again in the future.
Louise P ★★★★★
I had an issue with my kitchen faucet and called Galaxy Plumbing because I had seen their van in my neighbourhood. Rob returned my call and came to have a quick look and assess the situation. He ended up taking the time to fix the faucet while he was here. He was very responsive, professional and friendly.
Related Service
- Water Heaters - Full overview of tank and tankless systems, installation, and replacement across the GTA
- Emergency Repairs - 24/7 response for complete hot water failures, active pressure relief valve discharge, and tank leaks
- Water Filtration - Hard water treatment to reduce sediment accumulation and extend tank service life
- HVAC Services - Bundled mechanical coverage for homes managing both plumbing and HVAC under one plan
- In-Floor Heating - For homes with boiler-connected indirect hot water tanks requiring hydronic system expertise
- Water Leak Detection - Where pooling water near the tank suggests a hidden pipe issue rather than the tank itself
Service Areas
Galaxy Plumbing provides hot water tank repair across:
- Mississauga - Port Credit, Streetsville, Erin Mills, Lakeview, Cooksville, City Centre
- Toronto - North York, Downtown Toronto
- Etobicoke
- Scarborough
- Oakville
Contact us to book a same-day diagnostic visit or request a replacement assessment. You can verify our TSSA certification status through the Technical Standards and Safety Authority and our licensing credentials through Ontario's licensed tradesperson registry.
Frequently Asked Questions
1. What is hot water tank repair and what does it typically involve?
2. Why do I have no hot water in my house?
3. Is it worth repairing a hot water tank or should I replace it?
4. What causes the rumbling noise in my hot water tank?
5. How long does a hot water tank last in the GTA?
6. Does gas hot water tank repair require a certified technician in Ontario?
