Toilet Repair in Diamond Bar, CA
Toilet running or leaking? Find reliable toilet repair pros.
Los Angeles County15 plumbers available
Best Toilet Repair Pros in Diamond Bar
#1Strong Hire
J.I.G. Plumbing, Inc
5Toilet Repair: 78/100
“John from JIG Plumbing was great. He was at our home promptly and very quickly diagnosed the issue. He performed a hydro jet flush of our drain line to clear the blockage and also clean out the buildup along the inside walls of the pipe. Did a great job cleaning up afterwards.”
#2Conditional Hire
Western Rooter & Plumbing
4.9Toilet Repair: 75/100
“Art did an amazing job, front to back. I am SO grateful to him for figuring out our issue from the getgo, which wasn't easy. We hired two other companies to come try and figure out why our hot water kept going cold occasionally. They both assured us that it had to be the mixing valve or cartridge failure... Finally we called Western Rooter as a last resort”
#3Strong Hire
626 Plumbing
5Toilet Repair: 75/100
“Josh does excellent work, explains everything and is very honest.”
All Toilet Repair Pros in Diamond Bar
J.I.G. Plumbing, Inc
5·951 reviews·
6 mi awayGoogle Verified
+4 more
Top pick5.0Google
Strengths
Hydro-jet drain clearing performed promptly with full cleanup…
Main water line replacement handled with step-by-step…
Competitive pricing on pressure regulator
Concerns
Not enough data to identify weaknesses
“I needed my tankless water heater flushed and found J.I.G. Plumbing online. Scheduling was quick and easy too.”
Western Rooter & Plumbing
4.9·1.6k reviews·
16 mi away — Edge of service areaGoogle Verified
Solid pick4.9Google·4.9Yelp
Strengths
Correctly diagnosed a water heater intermittent-cold issue that 2…
No inspection fee to start;
communication theme=14 across 100 reviews;
Concerns
1-star review documents technician refusing to explain pricing…
Drain clog recurred within 2 weeks of a $375 service;
No-show on a 9–11am window (arrived at noon);
“Art did an amazing job, front to back.”
“on Oct 27, western Rooter technician cleared my toilets drains clog due to roots.”
626 Plumbing
5·29 reviews·
6 mi awayGoogle Verified
+4 more
Top pick5.0Google
Strengths
Beat 2 competing quotes on shower waste/overflow repair and fixed…
Christmas Eve emergency response confirmed;
FaceTime-based guidance to avoid unnecessary service call
Concerns
Not enough data to identify weaknesses
“Josh does excellent work, explains everything and is very honest.”
JG Plumbing & Rooter Inc
5·91 reviews·
10 mi awayGoogle Verified
+2 more
Solid pick5.0Google
Strengths
Repeat-customer retention confirmed: gas-line repair done…
Transparent pricing with cash discount offered on-site
Concerns
Slow initial response noted in 1 of 5 reviews: backup recurred…
“Jimmy serviced my stubborn 1955 home with professionalism, diligence and care! I was very impressed.”
Good News Plumbing & Drain
5·26 reviews·
10 mi awayGoogle Verified
+4 more
Top pick5.0Google
Strengths
fast_response in 3 of 5 analyzed reviews
Upfront pricing before starting work
Technicians show customers how to prevent recurrence
Concerns
Not enough data to identify weaknesses
“Our water heater suddenly went out and we had no hot water, so we called Good News Plumbing & Drain.”
Cisneros Brothers Plumbing
5·215 reviews·
6 mi awayGoogle Verified
+2 more
Proceed with care5.0Google
Strengths
Same-day dispatch confirmed;
Detailed estimate with multiple options at competitive prices…
Concerns
Not enough data to identify weaknesses
“Cisneros brothers plumbing is amazing! From the moment we called in we spoke to Areli who was able to help send out…”
All City Plumbing, Air & Electrical
4.9·8.1k reviews·
14 mi away — Serves your areaGoogle Verified
+4 more
Top pick4.9Google
Strengths
Same-day technician dispatch confirmed;
Tech Collen saved customer thousands with honest advice rather…
Named technicians (Carlos N, Andrew, Juan, Steve, Matt)…
Concerns
Not enough data to identify weaknesses
“They were able to send a technician to my house within a few hours.”
Preferred Plumbing and Rooter Services
4.9·136 reviews·
In Diamond BarGoogle Verified
+5 more
Top pick4.9Google
Strengths
Owner David sent crew within an hour for a warranty repair at no…
Full house repipe plus underground water-line replacement under…
After-hours call answered immediately;
Concerns
Not enough data to identify weaknesses
“I highly recommend this plumbing company! They repiped my house with professionalism and friendliness, making the…”
Service Hero Plumbing, HVAC, and Electrical
4.8·1.5k reviews·
8 mi awayGoogle Verified
+5 more
Top pick4.8Google
Strengths
Sunday emergency same-night water heater replacement confirmed:…
Water heater expertise strong: 3 of 5 analyzed service mentions…
Concerns
Not enough data to identify weaknesses
“Last Sunday evening on a late notice emergency call our water heater completely stopped working.”
Barker and Sons Plumbing & Rooter
4.8·4.3k reviews·
10 mi away — Serves your areaGoogle Verified
+4 more
Strengths
Rapid emergency response: 2 of 5 reviewers specifically mention…
Thorough explanation and customer education: 3 of 5 reviewers…
Same-day or rapid job completion: 2 reviewers highlight finishing…
Professional, personable staff named by customers: reviewers…
Concerns
No pricing information provided in any of the 5 reviews;
“came out within just a few hours of my initial contact”
Glendora Plumbing & Heating
4.8·39 reviews·
10 mi awayGoogle Verified
+4 more
Top pick4.8Google
Strengths
Sub-45-minute emergency response confirmed: 9:15 AM call resulted…
Honest scope management: Mike provided temporary workaround…
Water heater repair saved customer from false upsell: Mike…
Concerns
Not enough data to identify weaknesses
“He was honest about the work including having to break flooring to get to the pipe but also provided some options of…”
Top Notch Plumbing Inc.
4.9·534 reviews·
8 mi awayGoogle Verified
+5 more
Top pick4.9Google
Strengths
Weekend water heater failure handled same-weekend: called after…
Fabian explained issue clearly, walked through solution…
Jeff finished kitchen sink replacement in under half the…
Concerns
Not enough data to identify weaknesses
“Joe did a good job to install a tankless water heater for my house.”
24 Rooter & Plumbing, Inc.
5·380 reviews·
8 mi awayGoogle Verified
+6 more
Top pick5.0Google
Strengths
Complete gas-line replacement with professional finish
Whole-home repipe in 1.5 days after utility company flagged a…
Considerate cleanup and site restoration
Concerns
Not enough data to identify weaknesses
“I was having plumbing issues and needed service right away. The team was professional and very responsive.”
SWE Sewer Solutions Construction & Engineering
4.9·123 reviews·
9 mi awayGoogle Verified
+5 more
Top pick4.9Google
Strengths
Sub-1-hour response to single-bathroom emergency (backed-up…
Septic-to-sewer conversion priced below all competitors without…
Camera inspection with before/after video shown to customer;
Concerns
Not enough data to identify weaknesses
“They did a septic to sewer conversion for me in late December and did a fantastic job, his crew was awesome.”
The Sewer Surgeon
4.8·51 reviews·
9 mi awayGoogle Verified
+4 more
Top pick4.8Google
Strengths
Same-day gas line response with safety protocol walkthrough…
Camera-inspected sewer line diagnosis confirmed tree root…
Concerns
Not enough data to identify weaknesses
“The technician arrived promptly and quickly diagnosed our clogged drain issue.”
Common Toilet Repair Scenarios
Running Toilet
A toilet that won't stop running wastes 200+ gallons per day. Usually caused by a worn flapper, faulty fill valve, or float adjustment issue.
Toilet Leak at Base
Water pooling around the base of your toilet usually means a failed wax ring seal. Left unfixed, it damages subfloor and can cause mold.
Clogged Toilet
When a plunger can't clear the blockage, there may be an obstruction deep in the trap or drain line that needs professional snaking.
Toilet Replacement
Old toilets using 3.5-7 gallons per flush should be replaced with modern 1.28 GPF models. Some municipalities offer rebates for water-efficient upgrades.
Frequently Asked Questions
How much does toilet repair cost in Diamond Bar, CA?
Toilet repair in Diamond Bar typically costs $100-$350. Running toilet fixes (flapper, fill valve) run $100-$200. Wax ring replacement costs $150-$300. Full toilet replacement with installation runs $300-$800 including the fixture. Labor is the main cost — the parts are inexpensive.
Should I repair or replace my toilet?
Repair if: it's a single issue like a running toilet or loose connection. Replace if: it's cracked, requires frequent repairs, uses more than 1.6 gallons per flush, or wobbles despite tightening. Modern toilets save 13,000+ gallons per year per household.
Can a running toilet increase my water bill?
Yes — a running toilet in your Diamond Bar home can waste 200+ gallons per day, adding $100+ per month to your water bill. A $150 repair pays for itself within weeks. Don't ignore it.
How long does toilet installation take?
A standard toilet replacement takes 1-2 hours. If the flange needs repair or the floor has water damage, add 1-3 hours. Most plumbers in Los Angeles County can do same-day toilet installation.
Other Services in Diamond Bar
Drain Cleaning Water Heater Repair Burst Pipe Repair Repiping Bathroom Remodel Plumbing Sewer Repair Sewer Line Replacement Faucet Repair Garbage Disposal Repair Sump Pump Repair Gas Line Repair Slab Leak Repair Water Line Repair Kitchen Remodel Plumbing Hydro-Jetting 24-Hour Plumber Same-Day Plumber Affordable Plumber Licensed Plumber Plumber Cost Clogged Drain No Hot Water Water Leak Low Water Pressure Frozen Pipes Sewage Backup All Emergency Plumbers
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