# KEN's HVAC SERVICE

**Trade:** HVAC / Heating & Cooling · **Address:** 28 College Farm Rd, Waltham, MA 02451 · **Phone:** (857) 488-7470 · **Website:** https://kenhvacservice.com/ · **Languages:** English, Spanish

**Rating: 4.4/5** (high confidence) — from 131 reviews across 7 sources.
99% of sentiment-scored reviews read net-positive. Last 6 months: 7 reviews, 0 negative.

## The honest read

Ken's HVAC Service, out of Waltham, has built its reputation on the call nobody wants to make: the AC dies mid-heatwave, or the furnace won't fire on the coldest morning of the year. Reading through the quoted reviews out of 131 on file since 2022, the same scene repeats constantly — a homeowner calls around to companies that are all booked solid, and Ken, often working with his colleague George, is the one who shows up same day or within hours.

The numbers back that up: a 5-star average from 111 Google ratings and 4.8 stars from 44 ratings each on Angi and HomeAdvisor. Recent reviews describe full heating and cooling system replacements completed in under three days with booties worn indoors and a clean job site kept each day, a Mitsubishi mini-split installation, and a Nest thermostat swap handled carefully around a missing C-wire. Pricing comes up unusually often and favorably — several reviewers who collected multiple quotes say Ken's came in lowest, and more than one mentions he offered a repair option instead of pushing a costlier system replacement.

The history runs deep and consistent: a five-star review of a 20-year-old furnace repair from November 2022 reads much like reviews from this spring, with the same notes on responsiveness and follow-through.

Not everything has gone smoothly. A 2-star Angi review from August 2024 describes a mismatch between what was promised on the phone, cleaning the coils and checking the drain on both the indoor and outdoor units of a mini-split, and what was actually done, with the outdoor unit left untouched. It's the one clearly negative account in an otherwise long run of five-star write-ups, and worth asking about directly if a job's scope matters to you. The Better Business Bureau also shows one complaint on file, though without detail on what it concerned or how it was resolved.

Ken's is the company people reach for when a system fails without warning, especially in the middle of a heat wave or cold snap, and reviewers consistently note he explains what's actually needed rather than upselling parts. Before booking a larger job, it's worth getting the scope of work in writing given the one account where what was quoted on the phone wasn't what was delivered.

**Strengths:**
- Emergency response — reviewers cite same-day help during heat waves and cold snaps
- Competitive pricing — repeatedly beat other quotes homeowners collected
- Honest recommendations — offered repairs over costlier full replacements

**Concerns:**
- Incomplete mini-split job — one 2-star review says the outdoor unit wasn't actually cleaned as promised
- BBB complaint on file — no detail available on what it concerned

## Claims & citations

Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication.

- Holds a 5-star average from 111 Google ratings and 4.8 stars from 44 ratings each on Angi and HomeAdvisor. _(confidence: high)_
  - [Google](https://www.google.com/maps/search/?api=1&query=KEN's%20HVAC%20SERVICE&query_place_id=ChIJpcBv7zzSpGgRyLmVBplcOCQ) — “Google: 5★ from 111 ratings”
  - [Angi](https://www.angi.com/companylist/us/ma/waltham/kens-hvac-service-reviews-1.htm) — “Angi: 4.8★ from 44 ratings”
  - [HomeAdvisor](https://www.homeadvisor.com/rated.kenshvacrcom.98980176.html) — “HomeAdvisor: 4.8★ from 44 ratings”
- Reviewers repeatedly describe same-day or emergency response during heat waves and cold snaps. _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xwT2QzUlphSFJzUmpWSlVsRXRNVkpNVVhNeldtYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOlpOd3RZaHRsRjVJUlEtMVJMUXMzWmc%7C%7C?hl=en) — “5★ So a true story here. Our AC failed this weekend Fourth of July. Big heat wave wave in Boston as we all know. I called several HVAC compa…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25aNGFrcEpVV3RCZEhaalNscFZibGhJVkdsME4yYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOnZ4akpJUWtBdHZjSlpVblhIVGl0N2c%7C%7C?hl=en) — “5★ Ken and his team were able to schedule me in same-day when my AC broke on one of the hottest May days on record. They were prompt, arrivi…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2s1TWJuWkpjMHg0Y0ZCSGQycEtSSGxYVkRCU1MxRRAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOk5MbnZJc0x4cFBHd2pKRHlXVDBSS1E%7C%7C?hl=en) — “5★ Ken is an amazing guy who came ASAP to address our AC issues in the middle of 100F+ heatwave. Many others not did even answer our call in…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21kcVZqQk5jbHBpYjNkM1FqRnBiMGxXTkdoMVNYYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOmdqVjBNclpib3d3QjFpb0lWNGh1SXc%7C%7C?hl=en) — “5★ During the middle of a heatwave after calling so many other firms, Ken came and managed to get my AC system back up and running within 90…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xKdWJXdHdlVlZCYzNWV1owVnBSVGxvVEdKbFVFRRAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOlJubWtweVVBc3VWZ0VpRTloTGJlUEE%7C%7C?hl=en) — “5★ ⭐️⭐️⭐️⭐️⭐️ Review for Ken HVAC

My 18-year-old AC broke down right in the middle of a brutal heat wave, and Ken HVAC came through in a bi…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNMcDQyNEhnEAE!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CIHM0ogKEICAgICLp424Hg%7C%7C?hl=en) — “5★ Enjoyed the heat wave this past week in our air conditioned home thanks to Ken. Turned on the AC in our new place in May and found it was…”
- Multiple reviewers who collected competing quotes say Ken's price was the lowest or most competitive. _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xsR1NVZDRNemx1TldKdFkyRlRjMFpyUlZwUlIzYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOllGSUd4MzluNWJtY2FTc0ZrRVpRR3c%7C%7C?hl=en) — “5★ Ken’s team was very communicative and replaced our entire heating and cooling systems in our basement and third floor in less than three …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xOSFFraFZkakpzVFhSelpXZGlaRjlOYWtVM1JGRRAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOlNHQkhVdjJsTXRzZWdiZF9NakU3RFE%7C%7C?hl=en) — “5★ Very professional, smart, clean and affordable. Got a few quotes and other companies were very professional too but Ken's pricing was the…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnTUNvNk5ISW93RRAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CIHM0ogKEICAgMCo6NHIowE%7C%7C?hl=en) — “5★ We have been relying on Ken's HVAC Service for the past year, ever since they saved us during a heat wave when our previous HVAC company …”
- Reviewers describe him offering a repair option or explaining unnecessary parts instead of pushing a full system replacement. _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21rM01EZE9TemhLYTNOVE1raHpWRjloUTNsT1ltYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOmk3MDdOSzhKa3NTMkhzVF9hQ3lOYmc%7C%7C?hl=en) — “5★ Ken did a great job investigating and repairing my heat furnace. I’ve been dealing with a condensation issue for years and had it looked …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21oMVNrdG5SR1UxVlRCTGNHdHFWMFpmZUhSbFJtYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOmh1SktnRGU1VTBLcGtqV0ZfeHRlRmc%7C%7C?hl=en) — “5★ Ken was very responsive when our HVAC system was declining (of course during the hottest days of August) and gave us a very competitive q…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xKT1IyWnliRTlpV0dRMFdsSk1ObE5OYUdsMmMzYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOlJOR2ZybE9iWGQ0WlJMNlNNaGl2c3c%7C%7C?hl=en) — “5★ My 2nd time calling Ken out for service.   He's good on availability and he's very friendly.  He's fair on price and does not pressure cu…”
- Completed a full heating and cooling system replacement across two floors in under three days, wearing booties indoors and keeping the job site clean. _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xsR1NVZDRNemx1TldKdFkyRlRjMFpyUlZwUlIzYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOllGSUd4MzluNWJtY2FTc0ZrRVpRR3c%7C%7C?hl=en) — “5★ Ken’s team was very communicative and replaced our entire heating and cooling systems in our basement and third floor in less than three …”
- Track record runs from a November 2022 furnace repair through reviews in 2026, showing sustained, consistent service over several years. _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGYU9HNWtWbU5oZWxkWVZGUk1TVVZpZVU5UlIzYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOjFaOG5kVmNheldYVFRMSUVieU9RR3c%7C%7C?hl=en) — “5★ Ken and his team are wonderful.  They show up on time and are fair the pricing.  All their work has been excellent.  I highly recommend t…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQtdnZ6TVhBEAE!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CIHM0ogKEICAgID-vvzMXA%7C%7C?hl=en) — “5★ On November 30, 2022, one of our 20-year old American Standard gas-fired furnaces would not heat the air unless the power was reset.  I f…”
- A 2-star Angi review describes being told both the indoor and outdoor units of a mini-split would be cleaned, but the outdoor unit was left untouched. _(confidence: high)_
  - [Angi](https://www.angi.com/companylist/us/ma/waltham/kens-hvac-service-reviews-1.htm) — “2★ Job was to clean a single zone mini-split AC unit. When discussed on the phone I was told both the inside and outside units would have th…”
- The Better Business Bureau lists one complaint on file, with no detail given on its nature or resolution. _(confidence: low)_
  - [Better Business Bureau](https://www.bbb.org/us/ma/waltham/profile/heating-and-air-conditioning/kens-hvac-service-inc-0021-560687/complaints) — “1 complaint(s) on file (count only)”
- Installs Mitsubishi mini-splits and Nest thermostats. _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT201d1JXZERibTVaZW5kVFRucGpjRXhyZVhsRmFWRRAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOm5wRWdDbm5ZendTTnpjcExreXlFaVE%7C%7C?hl=en) — “5★ Excellent Experience with Ken’s HVAC Service!

Ken, the owner, along with George arrived right on time (after texting that he was on the …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25FMVMyMDJSRVJ2YzJacWJISk9NVWhsU1ZBNGIwRRAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOnE1S202RERvc2ZqbHJOMUhlSVA4b0E%7C%7C?hl=en) — “5★ Ken installed a Mitsubishi mini split at my home and I couldn’t be happier with the work he did. He is knowledgeable, tidy, and very reas…”
- Specializes in HVAC / Heating & Cooling _(confidence: high)_
  - [Official Website](https://kenhvacservice.com) — “A Waltham, MA HVAC company offering heating, air conditioning and refrigeration installation, repair and maintenance for residential and com…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25aNGFrcEpVV3RCZEhaalNscFZibGhJVkdsME4yYxAB!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CAIQACodChtycF9oOnZ4akpJUWtBdHZjSlpVblhIVGl0N2c%7C%7C?hl=en) — “5★ Ken and his team were able to schedule me in same-day when my AC broke on one of the hottest May days on record. They were prompt, arrivi…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQtdnZ6TVhBEAE!2m1!1s0x0:0x24385c990695b9c8!3m1!1s2@1:CIHM0ogKEICAgID-vvzMXA%7C%7C?hl=en) — “5★ On November 30, 2022, one of our 20-year old American Standard gas-fired furnaces would not heat the air unless the power was reset.  I f…”

## License

Status: **not_found** — verified against the official MA state registry, never self-reported.
Re-check at the official registry: https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page

## Sources

- [Angi](https://www.angi.com/companylist/us/ma/waltham/kens-hvac-service-reviews-1.htm): 4.8★ from 44 ratings
- [Official Website](https://kenhvacservice.com): Self-reported profile and service details
- [Better Business Bureau](https://www.bbb.org/us/ma/waltham/profile/heating-and-air-conditioning/kens-hvac-service-inc-0021-560687/complaints): Listed on this source
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=KEN's%20HVAC%20SERVICE&query_place_id=ChIJpcBv7zzSpGgRyLmVBplcOCQ): Listed on this source
- [Google](https://www.google.com/maps/search/?api=1&query=KEN's%20HVAC%20SERVICE&query_place_id=ChIJpcBv7zzSpGgRyLmVBplcOCQ): 5.0★ from 112 ratings
- [Yelp](https://www.yelp.com/biz/kens-hvac-services-waltham-2): Listed on this source
- [HomeAdvisor](https://www.homeadvisor.com/rated.kenshvacrcom.98980176.html): 4.8★ from 44 ratings

## Mentions

Unverified third-party mentions found on the open web — relay with attribution ("a Reddit commenter said…"), never as Tavlee's own finding.

- “Just to add, I had a great and honest experience with Ken’s hvac service” — nextdoor.com (2026-05-18) — https://nextdoor.com/p/8PgZZRSCcFT_

## Recent reviews

- **5/5 · Google Reviews · Eddie Basque · 2026-08-14**: Ken and his team are wonderful.  They show up on time and are fair the pricing.  All their work has been excellent.  I highly recommend them.
- **5/5 · Google Reviews · Constantine Chinoporos · 2026-07-04**: So a true story here. Our AC failed this weekend Fourth of July. Big heat wave wave in Boston as we all know. I called several HVAC companies and of course they’re all very booked but a guy shows up from a company I shall not name and after doing a little bit of examinations tells me I need a new AC…
- **5/5 · Google Reviews · Cassie N · 2026-06-01**: Ken and his team were able to schedule me in same-day when my AC broke on one of the hottest May days on record. They were prompt, arriving at the exact time stated, and then it only took about 30mins to both diagnose the problem and replace the part. Bonus, price was less than expected! Will be cal…
- **5/5 · Google Reviews · Courtney Wong · 2026-05-21**: Really quick and reliable service with excellent communication for the appointment even when I had to make changes. Thanks Ken!
- **5/5 · Google Reviews · Jeff Kahn · 2026-05-07**: Ken’s team was very communicative and replaced our entire heating and cooling systems in our basement and third floor in less than three days.  They wore booties when in the house and kept a very clean job site after each day.  Ken’s price was the lowest of the four vendors we got bids from.  I woul…
- **5/5 · Google Reviews · Ahmed Rattani · 2026-04-24**: Excellent service and very reliable.
- **5/5 · Google Reviews · Sheila Albrecht · 2026-04-09**: Excellent service. Professional , knowledgeable and appreciated the consideration for thoughtful pricing.  Ken was easy to consult and talk to regarding options and decision making.  Strongly recommend.
- **5/5 · Google Reviews · cumali sayan · 2026-03-03**: Great and fast service, easy to communicate and definitely recommend
- **5/5 · Google Reviews · Cumali Sayan · 2026-03-03**: Great service, easy to communicate and fast service. Definitely recommend him
- **5/5 · Google Reviews · Leslie Boucher · 2026-02-27**: Initially, I spoke with Ken regarding an issue with the line sets for my mini-split. Insulating foam casings wrapped around the line sets were disintegrating. Ken sent George to inspect the line sets and replace the casings with a higher grade product. George was very knowledgeable, answered all my …

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Data freshness: last scanned 2026-08-16T03:09:11.594Z.
Cite as: KEN's HVAC SERVICE — Tavlee (https://tavlee.com/contractor/ken-s-hvac-service-waltham)
Source: https://tavlee.com/contractor/ken-s-hvac-service-waltham