Analyzing 5,890,1035.9M ReviewsFor 16,26616.3K Experts

Experts Reviews · Company report
Isaac & Sons Plumbing San Dimas logoHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%96+56.3Reliability 26%91+23.7Value 15%100+15.2Experts Score= 95Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.95SCORE

Isaac & Sons Plumbing San Dimas

Duarte, CA · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #5Position by Experts Score among all companies we track in this category. of 10 repiping services · 5.0★ from 139 Google reviews

📞 Call (626) 715-4748Request a call backWebsite ↗

Report card

Percentile vs other repiping services (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: craft & service and value; weakest: reliability.

SatisfactionSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Isaac & Sons Plumbing San Dimas is better than 96% of repiping services.A
96
ReliabilityReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Isaac & Sons Plumbing San Dimas is better than 91% of repiping services.A
91
Craft & serviceCraft & service · 0% of the scoreGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Isaac & Sons Plumbing San Dimas is better than 100% of repiping services.A
100
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Isaac & Sons Plumbing San Dimas is better than 100% of repiping services.A
100
MomentumMomentum · 0% of the scorePenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Isaac & Sons Plumbing San Dimas is better than 100% of repiping services.A
100
Replies to reviewsReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.Isaac & Sons Plumbing San Dimas is better than —% of repiping services.–
—

Reviews for your job

Customers hired Isaac & Sons Plumbing San Dimas for 7 kinds of job.

Isaac & Sons Plumbing San Dimas for drain cleaning

Clear ✕
Jobs reviewedHow many Google reviews are tagged with this job.6
★ on this jobAverage stars on the reviews where the customer tagged this exact job (Google’s “Services” field).4.67
Usually paidThe price range customers picked most often for this job.$200–300
Category typicalWhat the middle half of customers paid for this job across all companies in the category.$104–$353
Rank for this jobPosition of this company in the Job match ranking for this job among the companies we track.Its Job match: 68/100.How Job match is calculatedBuilt only from reviews Google tagged “Drain cleaning”:Stars on this job 55%Number of such jobs 25%Overall Experts Score 20%Stars are pulled toward the category average when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.#10 / 10
Said fairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”.100%

All 6 Google reviews tagged “Drain cleaning”

Tim3 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 3 months ago★★★★★

I have used Isaac for multiple jobs. Isaac and his crew are very reliable and do amazing work. If you are looking for a plumber big or small job would highly recommend using Isaac.

Great priceDrain cleaning
Sandra3 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited 11 months ago★★★★★

Once again great service as always!

Reasonable priceDrain cleaningService not listed
BooBear1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 11 months ago★★★★★

Bathroom flooded this morning. My mom (Tricia) called Isaac & Sons Plumbing San Dimas. The gentleman who helped was quick. It didn’t take long at all. Price was great and he was very nice.

Paid $100–200Great priceDrain cleaning
Bonnie7 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited a year ago★★★

Kitchen sink was backing up and Draino wasn't helping at all. I took a chance over the more "popular" plumbers this time and so glad I found "Isaac & Sons Plumbing!" Joseph came by the same day I called and was extremely courteous and professional. He was able to unclog the drain quickly and efficiently. Finally…

Drain cleaningPlumbing pipe repair+ Punctuality
Dominique1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 4 years ago★★★★★

Issac came to our rescue on a Sunday morning, holiday weekend. He was very gracious, got the job completed and at a very reasonable price. He had knowledge of the homes in the neighborhood. Such a pleasure to do business with and a local small business. I would highly recommend them.

Drain cleaning+ Responsiveness+ Punctuality+ Quality
Brent4 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 11 months ago★★★★★

Rating only, no written review.

Paid $200–300Reasonable priceDrain cleaning

Price

$748+90% vs typical repiping services

Bar = middle half of what customers paid · gold mark = category median.

Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.

Great price 33%Reasonable 50%Overpriced 0%Not sure 17%

Jobs customers hired them for

JobReviewsCategory typical
Drain cleaning6$104–$353
Water heater installation6$977–$2.4k
Plumbing leak repair4$228–$1.7k
Plumbing pipe repair4$214–$1.4k
Plumbing leak detection3$205–$638
Outdoor plumbing system repair3$450–$1.7k
Shower repair2—

Compare with

Rare Plumbing logoRare PlumbingExperts Score 100Duarte · 5.00★JG Plumbing & Rooter Inc logoJG Plumbing & Rooter IncExperts Score 100Duarte · 5.00★Nolasco Plumbing, Inc. logoNolasco Plumbing, Inc.Experts Score 99Duarte · 4.99★