Dawson Does It - Heating
June 2026
Researched rankings in 38 cities across the United States and Canada. Re-checked every 90 days.
Company Facts
The work
Where
Money and guarantees
Editorial Review
T-Mark's real advantage is breadth: one 24/7 dispatch covering plumbing, heating, cooling and electrical, backed by more than 4,400 Google reviews at a 4.9 average, and an office that replies to reviews by name. A recent, serious complaint about reversed venting on a tankless water heater install is worth taking seriously if you're booking gas appliance work; ask pointed questions about post-install inspection before you sign.
Best for: homeowners who want one 24/7 crew for HVAC, plumbing and electrical
Customer ratings shown here come from Google. They are separate from our editorial review above.
Google rating
4.9
Based on 4442 Google reviews
Review data updated September 21, 2026
The distribution reflects the 4442 Google reviews available when this profile's review data was last refreshed on September 21, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.
Editorial Ranking
It took first place in 10 Best HVAC Companies in Buffalo, NY (2026).
Based in Buffalo, NY.
Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.
T-Mark Plumbing, Heating & Cooling has worked out of its Englewood Avenue location on Buffalo's north side for more than 25 years, and the company now covers plumbing, heating, cooling and electrical work under one roof rather than as separate specialties. That range shows up directly in the reviews. Nicole credited technician Riasad with a quick, well-explained furnace tune-up, and Cheryl Brinson named technician Jay for diagnosing and resolving an electrical issue in a clear, professional visit.
Reviewers also describe a stable, reachable office: the company replies to nearly every Google review by name, thanking specific technicians and addressing complaints directly rather than leaving them unanswered. That pattern, technicians called out by name across plumbing, HVAC and electrical visits, points to a large crew rather than a rotating cast of subcontractors.
A serious complaint needs to be stated plainly. One reviewer, posted September 20, 2026, describes a tankless water heater T-Mark installed with its intake and exhaust pipes reversed, which the reviewer says allowed carbon monoxide to vent back into the house for roughly 15 months before the fault was caught. The reviewer states the company acknowledged the installer's error and dismissed that employee, but disputes how the company handled reimbursement for the safety issue afterward. A second recent reviewer, a five-year customer, separately describes being sold a more expensive water heater model on efficiency claims that did not hold up under their own research. Both are specific, checkable complaints rather than vague dissatisfaction, and anyone hiring T-Mark for gas appliance venting work should ask directly how the installation will be inspected and by whom.
The company posts 24-hour availability every day of the week, holds Buffalo News Best of 716 recognition across HVAC, plumbing and electrical categories, is BBB accredited, and works as a Generac generator dealer, useful in a region prone to storm-driven power outages. Financing and a Home Team maintenance plan are advertised, though specific plan pricing is not published.
Who this suits: a Buffalo homeowner who wants a single, always-open contractor for a heating, cooling, plumbing or electrical problem and values Generac generator support. Who might look elsewhere: anyone whose job involves gas-fired venting work, given the carbon monoxide complaint above, without first asking pointed questions about post-installation inspection.
Before booking, ask what a 2 a.m. dispatch actually costs versus a daytime appointment, request the specific NY licenses for the trade you need, and for any gas water heater or furnace venting work, ask directly what inspection or CO testing happens after installation and who performs it.
Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.
Verified means we checked the credential against the authority that issues it and recorded the date. Reported means the business told us and we could not independently confirm it. We publish both, labelled, rather than dropping what we could not check.
We show each source separately rather than blending them into a single score, because they measure different things.
4.9/ 5
4442 customer reviews
Editorially reviewed
Ranked #1 in Buffalo hvac, September 2026
What this company publishes about its own pricing.
What Buffalo homeowners generally pay, independent of this company.
Business-submitted, reviewed by our editors
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The company does not publish specific license numbers on its site beyond stating it is licensed. Ask for the New York HVAC, plumbing and electrical license numbers that apply to your job, and check them against the state's public license lookup before work begins.
Yes, the company posts 24-hour availability every day of the week across its plumbing, heating, cooling and electrical divisions. Ask what an overnight or weekend dispatch costs before booking, since after-hours rates commonly differ from daytime pricing.
Yes, the company advertises financing options and a Home Team maintenance plan, though specific plan pricing and coverage are not published online. Ask for the plan's exact terms, and confirm the manufacturer and labor warranty on any new HVAC installation in writing.
We checked 0 of 1 credentials against the issuing authority. Verified items carry the date we checked; reported items are what the business told us and we could not independently confirm.
Buffalo. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.
Yes, the company lists emergency availability. Response time depends on demand, and after a storm every company in the market is stretched.
Warranty terms are not on file. Ask for them in writing before work starts.
Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.
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