Custom PlumbingPlumber in Sarnia, ON
Custom Plumbing is a plumber at 345 Ontario St Unit B, Sarnia, ON N7T 1M2, ranked #37 of 47 plumbers in Sarnia and rated 4.2 from 73 Google reviews. Open Monday to Friday.
Sarnia, ONUpdated 0 paid placements in any rankingHow we rank
Key facts
| Address | 345 Ontario St Unit B, Sarnia, ON N7T 1M2Get directions |
|---|---|
| Phone | (519) 337-1545 |
| Website | customplumbingsarnia.com |
| Hours | Monday to Friday: 8 AM – 4 PM |
| Google rating | 4.2 from 73 Google reviews |
Trades
Each trade shows the evidence we matched it on.
- Plumbingmain tradeGoogle main category
- Kitchen Remodeladditional Google category
- Bathroom Remodeladditional Google category
Service area
Serves Sarnia and 3 towns within 40 km: Corunna, Camlachie and Petrolia.
Based in Sarnia, ONView on map
Opening hours
| Day | Hours |
|---|---|
| Monday | 8 AM – 4 PM |
| Tuesday | 8 AM – 4 PM |
| Wednesday | 8 AM – 4 PM |
| Thursday | 8 AM – 4 PM |
| Friday | 8 AM – 4 PM |
| Saturday | Closed |
| Sunday | Closed |
- Open evenings — no
- Open Saturdays — no
- Open Sundays — no
Typical plumbing prices
| Job | Low | Typical | High |
|---|---|---|---|
| Water heater replacementPer unit, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | CA$1,240 | CA$1,890 | CA$2,570 |
Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.
Compare nearby plumbers
| Business | Rank | CR Score | Google rating | License verified | Saturday | Sunday | Distance away |
|---|---|---|---|---|---|---|---|
| Custom Plumbing (this business) | — | 75 | 4.2 (73) | — | No | No | |
| Bluewater Plumbing | #35 | 76 | 4.3 (54) | — | No | No | 3.9 km |
| Ghost Plumbing | #36 | 75 | 4.7 (24) | — | No | No | 5.1 km |
| Pete's Plumbing | #38 | 75 | 5.0 (6) | — | No | No | 5.5 km |
Questions about Custom Plumbing
How is Custom Plumbing ranked in Sarnia?
Custom Plumbing is ranked #37 of 47 plumbers in Sarnia by CR Score, with 75 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity and profile completeness. No business can pay to change its rank.
What are Custom Plumbing’s hours?
Custom Plumbing is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 4 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.
What areas does Custom Plumbing serve?
Serves Sarnia and 3 towns within 40 km: Corunna, Camlachie and Petrolia. The list is based on the business's location and the usual service radius for plumbing. Confirm your address is covered when you call.
What do Google reviews say about Custom Plumbing?
Custom Plumbing has a rating of 4.2 from 73 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.
How do I contact Custom Plumbing?
Call Custom Plumbing on (519) 337-1545. The business is at 345 Ontario St Unit B, Sarnia, ON N7T 1M2. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.
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Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.