HVAC contractor · Tonawanda, NY · reviewed since 2013
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%88+48Reliability 24%84+20.4Value 14%100+14.1Replies to reviews 7%95+6.7Craft & service penalty89−1.1Experts Score= 88Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.88SCORE
AGradeiLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#7 of 10 sump pump installation servicesiPosition by Experts Score among all companies we track in this category. · better than 33%
4.9★★★★★4,510 Google reviews · 24 photos
94%five-star reviews
4.89★last 12 monthsiAverage stars on reviews from the last 12 months only.
2%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.
71%reviews answered by the owner
$239typical billiMedian bill customers of this company reported in their reviews (needs 3+ priced reviews).
T-Mark Plumbing, Heating & Cooling- Buffalo at a glance
Customers frequently praise the company for punctual arrivals, clear explanations of work, and professional conduct during heating, cooling, and electrical services. However, low-star reviews highlight recurring issues with appointment cancellations, significant delays in completing jobs, and high costs for specific repairs. Some complaints also note that technicians occasionally left work areas messy or installed equipment incorrectly, requiring follow-up visits to resolve the problems.
Google rating: 4.9 out of 5 from 4,510 reviews (94% five-star).
Reviews on this page: 4,510 Google reviews (3,454 with written comments, 82 with photos).
Owner responses: the business replied to 71% of reviews.
Most recent review: October 28, 2026.
Service: Sump Pump Installation Service serving Tonawanda, New York.
Data from Google, last updated October 28, 2026.
Score profile vs other sump pump installation 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: reliability.
This companySump Pump Installation 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.T-Mark Plumbing, Heating & Cooling- Buffalo: 88/100 on this factor. Category median: 91.A
88
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.T-Mark Plumbing, Heating & Cooling- Buffalo: 84/100 on this factor. Category median: 91.A
84
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.T-Mark Plumbing, Heating & Cooling- Buffalo: 89/100 on this factor. Category median: 97.A
89
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.T-Mark Plumbing, Heating & Cooling- Buffalo: 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.T-Mark Plumbing, Heating & Cooling- Buffalo: 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.T-Mark Plumbing, Heating & Cooling- Buffalo: 95/100 on this factor. Category median: 100.A
95
Bar = this company · dark tick = category median.
Star ratings
4,510 Google reviews we collected
4.9of 5
5 stars4,25494%
4 stars1052%
3 stars261%
2 stars301%
1 star952%
Praise vs complaints
Phrases our text analysis found in 2,500 written reviews
99%praise
Praise4,80299%
Complaints731%
PriceiGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Price verdicts customers left with their Google review
97%fair
Great price31336%
Reasonable47455%
Overpriced263%
Not sure465%
$239-26% vs typical sump pump installation services
Middle half of what 692 customers paid ($78–$606) · gold mark = category median.
Topic share
How often each topic comes up in the written reviews
7topics
Staff & attitude1,54232%
Speed & response98620%
Quality & results85618%
Communication51110%
Would recommend48210%
Price & value3337%
Honesty & trust1653%
What customers talk about
We read 2,500 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“Prompt and courteous was Maxwell ,as he attended to the details and procedure of our heating check up.”
“I would not recommend very unprofessional what he’s done.”
“Was professional and solved our problems quickly and efficiently.”
“No one called me to say there was a problem or delay.”
“David was an amazing technician and did a great job diagnosing and repairing our malfunctioning boiler.”
“INSTALLATION PROBLEM: The installation looked awful on the exterior of the house which resulted in having the manager called to my house to have the…”
“They always provide great communication, professionalism and service.”
“I would recommend anyone to call if they ever have a heating problem.”
“I would recommend avoiding this company for HVAC installations and to stay away from American Standard products as a whole.”
“He was able to the work in a reasonable time, being very accommodating.”
“They are over priced just like others have told me and didn’t resolve my issue.”
“Excellent work, very knowledgeable and professional and genuinely cares about the work and the customer.”
“…rs around the hole, because again that was what we happened to have lying around the house.…”
People customers mention
Logan30 reviews
Dylan29 reviews
Mike28 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Reviews for your job
Customers hired T-Mark Plumbing, Heating & Cooling- Buffalo for 8 kinds of job. Pick one to see what they paid and said.
WWoody1 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. · 2 days ago★★★★★
Zach was awesome. He resolved an unrelated issue with some light switches on the second floor that had been bothering me for months, and he also noticed that my hot water tank was leaking. He was a lifesaver and went above and beyond.
Paid $1–200Great priceService not listed
CCatharine5 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. · Edited 6 days ago★★★★★
Was early for appointment, explained everything he was going to do. Dillon was a professional.
Paid $100–200Great price
JJanice1 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. · 6 days ago★★★★★
The repair man was super nice and courteous. My mother and father are older, he spoke with me described what he did.I was unable to be there but he understood and helped get my parents furnace working. I would recommend anyone to call if they ever have a heating problem. Thanks
Paid $1–200Great priceHeating system maintenance
LLee2 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 week ago★★★★★
Dylan was wonderful! Excellent work, very knowledgeable and professional and genuinely cares about the work and the customer. Highly recommend TMark and Dylan! (Electrical installation of lines for new dryer and current washer).
Paid $1,800–2,000Reasonable priceService not listed
TTravis2 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 week ago★★★★★
Cater showed up on schedule and did the work that was necessary to get our water draining properly.
Paid $600–800Not sureSewer cleaning
DDawn3 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 week ago★★★★
Overall good experience for complex job. Electrician had to fix several outlets.
Prompt and courteous was Maxwell ,as he attended to the details and procedure of our heating check up.”
He cleaned and examined the inner workings and then spoke to me with some suggestions and tips to help keep things running smoothly.
Did the work in ample time, and commented appropriately and professionally. Gave me info on rebate at the time he summarized what he had done.
Represented The company very nicely.
Price assessment: Great price
Services: HVAC system maintenance
L
Latangela Wilson4 reviewsiTotal number of Google reviews Latangela has written across all businesses on Google Maps, not just this one.
Zach was awesome. He resolved an unrelated issue with some light switches on the second floor that had been bothering me for months, and he also noticed that my hot water tank was leaking. He was a lifesaver and went above and beyond.
Price assessment: Great price
Price: $1–200
Services: Service not listed
Response from the owner · 2 days ago
Hey Woody! Thank you for the 5-star review! We're thrilled to hear that our technician did such a stellar job for you. If you have any more home service needs.. you know where to find us!
S
Susanna Schenk12 reviewsiTotal number of Google reviews Susanna has written across all businesses on Google Maps, not just this one.
Was professional and solved our problems quickly and efficiently. They came right on time and had our entire ductwork cleaned in 3 hours. They were incredibly efficient and professional.
Response from the owner · 2 days ago
Thank you for the 5-star review! We're thrilled to hear that our team was able to clean your ductwork quickly & efficiently. If you ever need us again.. Just give us a shout !
P
Peter Sauer7 reviewsiTotal number of Google reviews Peter has written across all businesses on Google Maps, not just this one.
David was an amazing technician and did a great job diagnosing and repairing our malfunctioning boiler. He also took the time to dumb it down and provide me with a thorough explanation/education. It wee an outstanding experience.
Price assessment: Great price
Services: HVAC system maintenance, Heating system repair
Response from the owner · 2 days ago
Thank you Peter! We're thrilled to hear that our technician did such a fantastic job with your boiler. We appreciate your glowing review, and If you ever need more help.. you know who to call!
G
Ganga Sharma official4 reviewsiTotal number of Google reviews Ganga has written across all businesses on Google Maps, not just this one.
Reasonable price, punctual, great experience. Good service
Services: HVAC system maintenance
Response from the owner · Edited 2 days ago
Thank you Ganga! We're thrilled to hear you had a great experience with us. Thank you for the 5-star love. If you need any further service.. Just give us a shout !
J
Jeanne Mathews1 reviewiTotal number of Google reviews Jeanne has written across all businesses on Google Maps, not just this one.
hi – they were quick and nice but they left the floor wet and dirty – kind of thought they should leave it the way they found it for almost $3000 & an hours work – you can give me a discount though for my cleaning services!
Response from the owner · 23 hours ago
Dear Jeanne,
Thank you for your feedback regarding your experience. We appreciate your acknowledgment of our team's quick & friendly service. However, I'm sorry to hear that the cleanliness did not meet your expectations. We strive to leave every space as we found it.
I had the opportunity to speak with your project manager who arranged a discount to help cover the cost of any cleaning services needed. We appreciate the opportunity to address your concerns, and hope this adjustment demonstrates our commitment to making things right, restoring your confidence in our team, and keeping your trust moving forward.
Thank you again for bringing this to our attention.
Best,
T-Mark Team
R
robin donovan6 reviewsiTotal number of Google reviews robin has written across all businesses on Google Maps, not just this one.
The T-Mark team gets a 10/10 in my book. They always provide great communication, professionalism and service. Nikolai has been serving our property and projects and we are very happy!
Response from the owner · Edited 5 days ago
Robin! A 10/10? That’s music to our ears! We're thrilled to hear our technician has been hitting all the right notes for you. Great communication & professionalism is what we strive for! Thanks for the fantastic review, and keep those projects coming!
M
Madison ButlerLocal Guide · 17 reviewsiTotal number of Google reviews Madison has written across all businesses on Google Maps, not just this one.
Dylan came to help me with an exterior outlet and was super kind and informative! Highly recommend
Response from the owner · 5 days ago
Thank you much for the review Madison! We're thrilled to hear that our technician made your experience with us a positive one. His kindness & expertise are what we strive for! If you ever need more help.. you know where to find us!
