iHow 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 55%98+53.5Reliability 24%99+24Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty99−0.1Experts Score= 99Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.99SCORE
AGradeiLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#2 of 66 septic tank servicesiPosition by Experts Score among all companies we track in this category. · better than 98%
5.0★★★★★167 Google reviews · 24 photos
98%five-star reviews
4.97★last 12 monthsiAverage stars on reviews from the last 12 months only.
0%1–2★ in 2 yearsiShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
100%reviews answered by the owner
$763typical billiMedian bill customers of this company reported in their reviews (needs 3+ priced reviews).
Google reviewers rate Avalon Services five stars based on 167 reviews, with the owner responding to all feedback. Customers frequently cite punctuality, clear communication, and fair pricing as key strengths. Common services include water heater replacement, drain cleaning, and sewer inspections. Reviewers note that technicians often diagnose complex issues missed by other companies and complete repairs quickly. No recurring criticisms appear in the provided excerpts, which consistently highlight professional and efficient service.
Google rating: 5.0 out of 5 from 167 reviews (98% five-star).
Reviews on this page: 167 Google reviews (134 with written comments, 1 with photos).
Owner responses: the business replied to 100% of reviews.
Most recent review: October 22, 2026.
Service: Septic Tank Service serving Richmond, California.
Data from Google, last updated October 28, 2026.
Score profile vs other septic tank services
Score per factor (100 = best)iEach 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: value and momentum; weakest: satisfaction.
Avalon ServicesSeptic Tank Services median0 = centre, 100 = best
SatisfactioniSatisfaction · 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.Avalon Services: 98/100 on this factor. Category median: 91.A
98
ReliabilityiReliability · 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.Avalon Services: 99/100 on this factor. Category median: 87.A
99
Craft & serviceiCraft & service · penalty only, up to −10 pointsGoogle 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.Avalon Services: 99/100 on this factor. Category median: 95.A
99
ValueiValue · 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.Avalon Services: 100/100 on this factor. Category median: 100.A
100
MomentumiMomentum · penalty only, up to −10 pointsPenalises 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.Avalon Services: 100/100 on this factor. Category median: 100.A
100
Replies to reviewsiReplies 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.Avalon Services: 100/100 on this factor. Category median: 72.A
100
Bar = this company · dark tick = category median.
Star ratings
167 Google reviews we collected
5.0of 5
5 stars16398%
4 stars42%
3 stars00%
2 stars00%
1 star00%
Praise vs complaints
Phrases our text analysis found in 134 written reviews
99%praise
Praise30199%
Complaints31%
PriceiGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Price verdicts customers left with their Google review
100%fair
Great price725%
Reasonable1864%
Overpriced00%
Not sure311%
$763+78% vs typical septic tank services
Middle half of what 17 customers paid ($340–$1.8k) · gold mark = category median.
Topic share
How often each topic comes up in the written reviews
7topics
Staff & attitude7023%
Speed & response6421%
Quality & results4314%
Would recommend4113%
Communication3712%
Price & value2910%
Honesty & trust207%
What customers talk about
We read 134 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“Their estimates, timeliness, pricing, and quality of work were completely professional.”
“They did a great job, for a good price and were always on time.”
“The professional, knowledgeable young man who came to my house not only quickly diagnosed my issue but at the same time fixed it .”
“I highly recommend Avalon Services to anyone needing sewer lateral work or related services.”
“I could not recommend this company more.”
“The contact in the office was extremely helpful and our tech was able to explain everything with ease and get it fixed quickly.”
“They provide free estimates and very fair pricing .”
“Probably not the least expensive, but I’d rather pay a little more for service that I can trust.”
People customers mention
Zach8 reviews
Regina5 reviews
Ron4 reviews
Oakland3 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Reviews for your job
Customers hired Avalon Services for 8 kinds of job. Pick one to see what they paid and said.
priscilla1 reviewiTotal 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 weeks ago★★★★★
Avalon was great. They did a great job, for a good price and were always on time.
RA2 reviewsiTotal 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. · a month ago★★★★★
I needed a storm drain scoped and cleaned ahead of this winter. Their estimates, timeliness, pricing, and quality of work were completely professional. They are now my go-to plumbing service. Would highly recommend.
Paid $1,600–1,800Reasonable priceDrain cleaning
Karen10 reviewsiTotal 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. · a month ago★★★★★
This is a great small plumbing company . I had an issue with a drain blockage under my house which three other companies could not diagnose . The professional, knowledgeable young man who came to my house not only quickly diagnosed my issue but at the same time fixed it . My toilet is now working without issue.…
Paid $1–200Great priceDrain cleaning
Laura3 reviewsiTotal 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. · 2 months ago★★★★★
We called Avalon Services with a broken water heater. They were friendly, prompt, and were able to diagnose the problem and replace the water heater the same day. The contact in the office was extremely helpful and our tech was able to explain everything with ease and get it fixed quickly. Probably not the least…
Paid $2,000+Not sureWater heater installation
Jon1 reviewiTotal 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 months ago★★★★★
This was brilliant. Technician arrived within two days, did the work quickly and efficiently, no mess, reasonable price.
Very satisfied,
Anthony8 reviewsiTotal 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. · 5 months ago★★★★★
I had an excellent experience with Avalon Services for my sewer lateral work. After dealing with other companies that made promises, delayed, or never followed through, Avalon came through exactly when I needed them.
They were professional, reliable, responsive, and did high-quality work from start to finish. The…
Thank you for your kind review and for your business. We look forward to helping you with your next plumbing need, though we hope it is a long time from now for your sake. Thanks for choosing Avalon Services
priscilla coffin1 reviewiTotal number of Google reviews priscilla has written across all businesses on Google Maps, not just this one.
Avalon was great. They did a great job, for a good price and were always on time.
Price assessment: Reasonable price
Price: $600–800
Services: Toilet repair, Plumbing leak detection
Response from the owner · a week ago
Thank you for the positive feedback, Priscilla! We're glad to hear that you had a great experience with Avalon Services. Timeliness and value are important to us, and we're pleased to know we met your expectations. We appreciate your support!
RA Hodge2 reviewsiTotal number of Google reviews RA has written across all businesses on Google Maps, not just this one.
I needed a storm drain scoped and cleaned ahead of this winter. Their estimates, timeliness, pricing, and quality of work were completely professional. They are now my go-to plumbing service. Would highly recommend.
Price assessment: Reasonable price
Price: $1,600–1,800
Services: Drain cleaning
Response from the owner · 4 weeks ago
Thank you for your fantastic review, RA! We're thrilled to hear that you had a positive experience with our storm drain services. Our team works hard to provide timely and professional service, and it's great to know we've earned your trust. We appreciate your recommendation and look forward to assisting you again in the future!
Karen Day10 reviewsiTotal number of Google reviews Karen has written across all businesses on Google Maps, not just this one.
This is a great small plumbing company . I had an issue with a drain blockage under my house which three other companies could not diagnose . The professional, knowledgeable young man who came to my house not only quickly diagnosed my issue but at the same time fixed it . My toilet is now working without issue. They provide free estimates and very fair pricing . They will be my go to plumbing company from now on.
Price assessment: Great price
Price: $1–200
Services: Drain cleaning
Response from the owner · a month ago
Thank you for the fantastic feedback! We're thrilled to hear that our team was able to quickly diagnose and resolve your plumbing issue. Providing knowledgeable and efficient service is our top priority. We appreciate your trust in Avalon Services and look forward to assisting you with any future plumbing needs!
lobzi12 reviewsiTotal number of Google reviews lobzi1 has written across all businesses on Google Maps, not just this one.
Very helpful and tried hard to fix my problems
Was unsuccessful but still working to replace my on-demand water heater
Services: Water heater repair
Response from the owner · 2 months ago
Thank you for your feedback! We're glad to hear that our team was helpful and dedicated to resolving your issues. We appreciate your patience as we work on replacing your on-demand water heater. If you have any further questions or need assistance, please don’t hesitate to reach out.
Laura Brezel3 reviewsiTotal number of Google reviews Laura has written across all businesses on Google Maps, not just this one.
We called Avalon Services with a broken water heater. They were friendly, prompt, and were able to diagnose the problem and replace the water heater the same day. The contact in the office was extremely helpful and our tech was able to explain everything with ease and get it fixed quickly. Probably not the least expensive, but I’d rather pay a little more for service that I can trust.
Price assessment: Not sure
Price: $2,000+
Services: Water heater installation
Response from the owner · 2 months ago
Thank you for the wonderful review, Laura! We're thrilled to hear that you had a positive experience with our team. Providing friendly and efficient service is our top priority, and we're glad we could help you with your water heater issue promptly. We appreciate your trust in Avalon Services and look forward to assisting you in the future!
Elaine S6 reviewsiTotal number of Google reviews Elaine has written across all businesses on Google Maps, not just this one.
Best plumbers we ever used! Smart, clean, efficient and honest. We wish every household contractor had the high standards that Avalon does. The job got done well and they gave a fair, accurate quote. Saved me money and that’s where the integrity counts! Other quotes we got for the same job tried to pad the quote, gave wrong information that would have delayed our project and cost a ton more. Use these guys. Amazing work and great customer care.
Price assessment: Reasonable price
Services: Toilet repair, Water heater installation, Water tank installation, Toilet installation, Faucet installation, Sewer repair
Response from the owner · 3 months ago
Thank you for the wonderful feedback, Elaine! We're thrilled to hear that you had such a positive experience with our team. Providing honest and efficient service is our priority, and it's great to know that we met your expectations. We appreciate your support and hope to assist you again in the future!
Jon Livesey1 reviewiTotal number of Google reviews Jon has written across all businesses on Google Maps, not just this one.
This was brilliant. Technician arrived within two days, did the work quickly and efficiently, no mess, reasonable price.
Very satisfied,
Price assessment: Reasonable price
Price: $500–600
Services: Toilet repair, Plumbing pipe repair
Response from the owner · 4 months ago
Thank you for the fantastic feedback, Jon! We're thrilled to hear that you had a great experience with our technician. Timely service and efficiency are what we strive for at Avalon Services. Your satisfaction is our priority!
Anthony Sillemon8 reviewsiTotal number of Google reviews Anthony has written across all businesses on Google Maps, not just this one.
I had an excellent experience with Avalon Services for my sewer lateral work. After dealing with other companies that made promises, delayed, or never followed through, Avalon came through exactly when I needed them.
They were professional, reliable, responsive, and did high-quality work from start to finish. The team explained what needed to be done, showed up as promised, and completed the job the right way. For such an important service, that gave me real peace of mind.
The price was fair, the work was worth every dollar, and I truly feel this was money well spent. I highly recommend Avalon Services to anyone needing sewer lateral work or related services. They are dependable, honest, and they get the job done.
Price assessment: Great price
Price: $1,000+
Services: Sewer cleaning, Sewer repair
Response from the owner · 5 months ago
Thank you for your wonderful feedback, Anthony. We’re thrilled to hear that you had an excellent experience with our team at Avalon Services. Providing reliable and high-quality service is our top priority, and it’s great to know that we were able to deliver exactly what you needed. We appreciate your recommendation and look forward to assisting you in the future!
Ira Martin4 reviewsiTotal number of Google reviews Ira has written across all businesses on Google Maps, not just this one.
I want to thank the Avalon technicians for installing a two way sewer clean-out. They overcame difficulties such as a camera blocking item in the line and an unexpected Y in the line. Both technicians were knowledgeable and friendly.
Price assessment: Reasonable price
Services: Sewer repair
Response from the owner · 5 months ago
Thank you for your positive feedback, Ira. We're glad to hear that our technicians were able to overcome the challenges during your installation and that you found them knowledgeable and friendly. We appreciate your support and look forward to assisting you in the future!
