# Efficiency Plumbing, Heating & Air

**Trade:** HVAC / Heating & Cooling · **Address:** 50 B St A, Hanover, MA 02339, USA · **Phone:** (781) 775-5014 · **Website:** https://www.efficiencypr.com/?utm_source=google&utm_medium=organic&utm_campaign=GMBListing-Hanover-MA · **Languages:** English

**Rating: 4.1/5** (medium confidence) — from 109 reviews across 4 sources.
98% of sentiment-scored reviews read net-positive. Last 6 months: 14 reviews, 0 negative.

## The honest read

Efficiency Plumbing, Heating & Air, based in Hanover, is a South Shore company that gets called for everything from a broken heat pump to a clogged kitchen sink — reviewers keep singling out speed: same-day appointments during a heatwave, technicians who show up first thing in the morning, an AC condenser diagnosed and repaired within 20 minutes of arrival. Google shows 4.9★ from 142 ratings.

The written record runs deep — 109 reviews from 2022 through 2026 across four sources, with 15 landing in just the last six months and none of them negative. One customer described a 10-year relationship covering both a home and a car dealership; another said the company handles routine service across more than 30 rental properties plus a Boston office.

The jobs described range from routine to substantial. Recurring names — Mike, Carlos, Carlo, Michael — show up across dozens of reviews for fast AC and furnace diagnostics, including an overnight AC failure that was running again by 10:30 the next morning. On the bigger end, in a 2023 review a homeowner described a full 3-zone heat pump, tankless water heater and whole-house water filtration install done through the state's Mass Save program, which came with a $10,000 rebate and 0% financing. Plumbing work shows up too — drain clearing, a kitchen faucet swap, gas boiler service, and water heater repairs.

Two things are worth knowing before calling. The state's plumbing license registry lists the company's license, held under a related name (High Efficiency Plumbing & Heating Inc), as expired rather than active. And a couple of reviews flagged real gaps: a tune-up special that didn't include cleaning the outdoor AC condenser, and a plumber who worked thoroughly on a leak but never located its source.

Still, the volume and consistency of detailed, specific praise — especially on HVAC and heat-pump installs — make this a company South Shore homeowners keep calling back; worth confirming current plumbing licensing status directly before booking plumbing work specifically.

**Strengths:**
- Fast diagnostics — AC condenser fixed within 20 minutes of arrival
- Handles big installs — 3-zone heat pump with Mass Save rebate
- Trusted for scale — 30+ rental properties, a decade-long commercial account

**Concerns:**
- Expired plumbing license — registry shows lapsed, not active
- Tune-up gap — one special skipped the outdoor condenser

## Claims & citations

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

- Diagnosed and repaired a broken AC condenser within 20 minutes of arrival, and had another overnight AC failure running again by mid-morning _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2s5a1FtWTFORWxTVmpGRVprNU1kRFI2UjJwbU5tYxAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CAIQACodChtycF9oOk9kQmY1NElSVjFEZk5MdDR6R2pmNmc%7C%7C?hl=en) — “5★ Called with a problem with our AC condenser and Michael was out in 2 days. Within 20 minutes he had diagnosed and repaired the broken par…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21OS1UwdEJSRXh6VlVZd1RIZFNTemRSYjBwaVZGRRAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CAIQACodChtycF9oOmNKU0tBRExzVUYwTHdSSzdRb0piVFE%7C%7C?hl=en) — “5★ My A/C stopped working overnight and I was able to have it back up and running by 10:30 the next morning.  Very professional and easy to …”
- Installed a full 3-zone heat pump, tankless water heater and whole-house water filtration system through the Mass Save rebate program _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURsd0tiY3pnRRAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CIHM0ogKEICAgIDlwKbczgE%7C%7C?hl=en) — “5★ Efficiency Plumbing recently did work in my home. They installed a 3 zone whole house heat pump, on demand tankless water heater and a wh…”
- Used for large recurring accounts — a customer describes a 10-year relationship covering a home and a car dealership, another uses them across 30+ rental properties _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMzdl91MzVBRRAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CIHM0ogKEICAgIC3v_u35AE%7C%7C?hl=en) — “5★ They do a great job for us and very responsive. They take care of all our 30 + properties as well as our main office site in Boston.”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VPeXlfNTZXME9HOU53EAE!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CIHM0ogKEOyy_56W0OG9Nw%7C%7C?hl=en) — “5★ I have been dealing with Efficiency Plumbing for the past 10 years, they service my home and my business Mclaughlin Chevy. These guys are…”
- The state plumbing license registry lists the company's license, under the related name High Efficiency Plumbing & Heating Inc, as expired rather than active _(confidence: high)_
  - [State License Registry](https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page) — “MA plumber license 3810-PL-C registry-verified expired — registry holder of record: High Efficiency Plumbing & Heating Inc”
- A reviewer said an advertised AC tune-up special did not include cleaning the outdoor condenser _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VNUHh6YXZzeXFEdHJRRRAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CIHM0ogKEMPxzavsyqDtrQE%7C%7C?hl=en) — “2★ Central A/C Tune-up special they advertized did not include cleaning the outside A/C condenser. which is important.”
- A reviewer described a plumber working thoroughly on a leak but never locating its source _(confidence: low)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25kaWVrTkhkRmx4Y1ZrMFUwcGFSVEJDTlROaGNGRRAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CAIQACodChtycF9oOndiekNHdFlxcVk0U0paRTBCNTNhcFE%7C%7C?hl=en) — “4★ The plumber was very thorough in trying to find where the leak was coming from, but he never was able to find where the leak was coming f…”
- Specializes in HVAC / Heating & Cooling _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25kWmQxOVNaVmcyTWtKVGJqSjVlRTE2Y1RWRmRGRRAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CAIQACodChtycF9oOndZd19SZVg2MkJTbjJ5eE16cTVFdFE%7C%7C?hl=en) — “5★ Fantastic and professional job done by Efficiency Plumbing Heating & Air.  Really nice employees, super clean and polite.  I would recomm…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2s5a1FtWTFORWxTVmpGRVprNU1kRFI2UjJwbU5tYxAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CAIQACodChtycF9oOk9kQmY1NElSVjFEZk5MdDR6R2pmNmc%7C%7C?hl=en) — “5★ Called with a problem with our AC condenser and Michael was out in 2 days. Within 20 minutes he had diagnosed and repaired the broken par…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURsd0tiY3pnRRAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CIHM0ogKEICAgIDlwKbczgE%7C%7C?hl=en) — “5★ Efficiency Plumbing recently did work in my home. They installed a 3 zone whole house heat pump, on demand tankless water heater and a wh…”
- Specializes in Plumbing _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURibzRXbVNREAE!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CIHM0ogKEICAgIDbo4WmSQ%7C%7C?hl=en) — “5★ I had the pleasure of using Efficiency Plumbing this week and had a great experience.  Great communication right on time. Very clean and …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tScmFtZENUa293Y0dkVlFXTkZRVk5ZYVRsMmMwRRAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CAIQACodChtycF9oOkRramdCTkowcGdVQWNFQVNYaTl2c0E%7C%7C?hl=en) — “5★ My water heater quit on me, and Efficiency had a technician out quickly. Mike diagnosed the issue right away, explained the fix clearly, …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNweHBtMXd3RRAB!2m1!1s0x0:0xa67f1d4f5ef00769!3m1!1s2@1:CIHM0ogKEICAgICpxpm1wwE%7C%7C?hl=en) — “5★ From start to finish Carlo and his guys and Rachel at the office were amazing. We got a heat pump and electric water tank through this co…”

## License

Status: **expired** (#3810-PL-C, plumber) — verified against the official MA state registry on 2026-07-02, never self-reported.
Re-check at the official registry: https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page

## Sources

- [Google](https://www.google.com/maps/search/?api=1&query=Efficiency%20Plumbing%2C%20Heating%20%26%20Air&query_place_id=ChIJ7X9MN1t744kRaQfwXk8df6Y): 4.9★ from 142 ratings
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=Efficiency%20Plumbing%2C%20Heating%20%26%20Air&query_place_id=ChIJ7X9MN1t744kRaQfwXk8df6Y): Listed on this source
- [Official Website](https://www.efficiencypr.com): Self-reported profile and service details
- [Exa](https://efficiencypr.com/service-areas/plumbing-and-hvac-services-in-hingham-ma/): 0 web mentions across the open web (each linked to its source)
- [Exa](https://www.bestprosintown.com/ma/hanover/efficiency-plumbing-/): 8 web mentions across the open web (each linked to its source)

## Recent reviews

- **5/5 · Google Reviews · Sherrie Hopkins · 2026-06-27**: We had our gas furnace replaced by Efficiency Plumbing and Heating yesterday. The installers were on time, courteous, answered all of our questions, and fully cleaned up prior to leaving. Great job done.
- **5/5 · Google Reviews · Sheryl Sullivan · 2026-06-19**: Fantastic company, the work is in the name. Highly recommend .
- **5/5 · Google Reviews · Kim Winchester · 2026-06-19**: Mike was awesome from the beginning. He worked closely with my boyfriend at his house. In Hanover, and my boyfriend recommended you guys. Mike went above and beyond for me could not have been nicer kinder. Informative and was a pleasure to have at my house. I will be signing up for membership and as…
- **5/5 · Google Reviews · Bill Cox · 2026-06-17**: Fantastic and professional job done by Efficiency Plumbing Heating & Air.  Really nice employees, super clean and polite.  I would recommend them to everyone!  I had to replace my AC compressor, air handler and the line running between them.  Awesome job!!!
- **5/5 · Google Reviews · Bill Furness · 2026-06-13**: They do a great job for us and very responsive. They take care of all our 30 + properties as well as our main office site in Boston.
- **5/5 · Google Reviews · John Olsen · 2026-06-10**: Efficiency Plumbing, Heating & AiR did a great job on my air conditioning system. They arrived promptly, the technicians were professional and very knowledgeable. They diagnosed and solved issues with my system and had it back up and running quickly. I highly recommend
- **5/5 · Google Reviews · Kathleen Boise · 2026-06-10**: Very happy with service received.
They were responsive, and scheduled  AC service quickly.
They were on time, evaluated the system and  took time to explain the most immediate service needs and other concerns with the age of the system. I was provided a detailed estimate . They were able to take car…
- **5/5 · Google Reviews · Stephen Riley · 2026-05-23**: Mike was very informative and prompt about his time and gave good suggestions
- **5/5 · Google Reviews · James Roberson · 2026-05-21**: The service technician and trainee were very courteous and professional.  The repair that consisted of cleaning mice nesting area in the condensor unit and repairing wiring that was chewed away was completed effectively and the unit is now operating as it should.  The technician was very thorough on…
- **5/5 · Google Reviews · Kevin Fall · 2026-05-20**: I had the pleasure of using Efficiency Plumbing this week and had a great experience.  Great communication right on time. Very clean and neat! I had them install 2 splits and replace a garbage disposal. Great people very easy to work with.
I would highly recommend them!!!

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Data freshness: last scanned 2026-07-02T03:13:52.526Z.
Cite as: Efficiency Plumbing, Heating & Air — Tavlee (https://tavlee.com/contractor/efficiency-plumbing-heating-and-air-hanover)
Source: https://tavlee.com/contractor/efficiency-plumbing-heating-and-air-hanover