--- title: "Denron Hall Plumbing & HVAC" description: "Denron Hall Plumbing & HVAC is a Manchester plumbing and heating company whose website lists commercial HVAC installation, maintenance and repair, boilers," doc_version: "2026-10-20" last_updated: "2026-10-20" --- # Denron Hall Plumbing & HVAC **Trade:** HVAC / Heating & Cooling · **Address:** 605 Front St, Manchester, NH 03102 · **Phone:** (603) 627-4186 · **Website:** https://denronhall.com/ · **Languages:** English **Rating: 2.5/5** (medium confidence) — from 20 reviews across 6 sources. 35% of sentiment-scored reviews read net-positive. Last 6 months: 8 reviews, 4 negative. ## The honest read Denron Hall Plumbing & HVAC is a Manchester plumbing and heating company whose website lists commercial HVAC installation, maintenance and repair, boilers, chillers, cooling towers and pipefitting for hydronic heating and cooling. The company says it has been in business 52 years. An nhbr.com item describes Manchester-based Denron Plumbing & HVAC LLC and J. Lawrence Hall, a family-owned design-build mechanical contractor in Nashua, announcing a merger. A recent customer said the company came out on Christmas weekend when their heater gave out and no one else would come out to help. A recent customer called the HVAC and plumbing crew experienced. A recent reviewer said Tyler did a great job. A recent reviewer wrote that it seems Denron won't serve residential customers regardless of how complex the HVAC system is, and said the person on the appointment line was rude. A 2026 customer said they were without heat for nearly two weeks, that four different technicians could not diagnose the issue, and that a technician on the fifth visit determined a specific part was required. That 2026 customer said they were told the part had arrived and then that it had not. A 2023 customer said an install was still not complete after visits on Thursday and Friday, leaving them without water to the dishwasher and shower all weekend, and that the new unit then gave lukewarm water. A 2022 customer called them true experts but quite expensive. A 2022 customer said they waited over 8 months for an estimate after a technician came by. A recent reviewer said a company van changed lanes and turned into Home Depot without using blinkers. **Strengths:** - Christmas weekend heat call — a recent customer said they came when no one else would - An experienced crew — a recent customer called the HVAC and plumbing crew experienced **Concerns:** - Two weeks without heat — a 2026 customer said five visits were needed to diagnose - Residential customers — a recent reviewer said it seems Denron won't serve them - A stalled install — a 2023 customer was left without water all weekend - A high price — a 2022 customer called them quite expensive - Van driving — a recent reviewer said a company van skipped blinkers ## Claims & citations Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication. - 3.4 stars from 50 Google ratings _(confidence: high)_ - [Google](https://www.google.com/maps/search/?api=1&query=Denron%20Hall%20Plumbing%20%26%20HVAC&query_place_id=ChIJ7_RIH7VI4okRVx5FcocEmUM) — “Google: 3.4★ from 50 ratings” - Better Business Bureau grade of A+ _(confidence: high)_ - [Better Business Bureau](https://www.bbb.org/us/nh/manchester/profile/plumber/denron-plumbing-hvac-llc-0051-5001212) — “Better Business Bureau grade: A+” - The company says it has been in business 52 years _(confidence: medium)_ - [Official Website](https://denronhall.com) — “Self-reported 52 years in business” - Its website lists commercial HVAC installation, maintenance and repair, boilers and chillers _(confidence: high)_ - [Official Website](https://denronhall.com) — “About (self-reported, verbatim): HVAC Commercial HVAC Installation Commercial HVAC Maintenance & Programs Commercial HVAC Repair HVAC Design…” - A recent customer said the company came out on Christmas weekend when their heater gave out _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25nelgzaE9MVjlETW5WaVVuUjRUbFpzT1ROWGJHYxAB!2m1!1s0x0:0x4399048772451e57!3m1!1s2@1:CAIQACodChtycF9oOngzX3hOLV9DMnViUnR4TlZsOTNXbGc%7C%7C?hl=en-US) — “5★ I had a 5 star experience both at my business and residency. They saved the day on Christmas weekend when my heater gave out and no one e…” - A 2026 customer said five visits were needed to identify a heating problem, with nearly two weeks without heat _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT210bFZIaFNSMVJuZG5sd2FHVjRiR3BEYVMxMlNVRRAB!2m1!1s0x0:0x4399048772451e57!3m1!1s2@1:CAIQACodChtycF9oOmtlVHhSR1RndnlwaGV4bGpDaS12SUE%7C%7C?hl=en-US) — “1★ If zero stars were an option, I would select it. We have been without heat for nearly two weeks during the coldest time of the year. Four…” - A recent reviewer wrote that it seems Denron won't serve residential customers _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25CUmNGaDRUVTlEY2twbk9WSTJZVWxIYkhSM09XYxAB!2m1!1s0x0:0x4399048772451e57!3m1!1s2@1:CAIQACodChtycF9oOnBRcFh4TU9DckpnOVI2YUlHbHR3OWc%7C%7C?hl=en-US) — “3★ It seems like Denron won’t serve residential customers regardless of how complex and big your HVAC system is. So don’t bother trying. Th…” - A 2023 customer said an install left them without water to the dishwasher and shower over a weekend _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURKcnIzXzBBRRAB!2m1!1s0x0:0x4399048772451e57!3m1!1s2@1:CIHM0ogKEICAgIDJrr3_0AE%7C%7C?hl=en-US) — “1★ Our unit needs to be replaced. We've gone 10 days without hot water.....they came this past Thursday and then again Friday and still didn…” - A 2022 customer called them quite expensive _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNlNWNuck53EAE!2m1!1s0x0:0x4399048772451e57!3m1!1s2@1:CIHM0ogKEICAgICe5cnrNw%7C%7C?hl=en-US) — “4★ These dudes are true experts, but are also quite expensive. I call them surgeons; surgeon plumbers - it’s a very special time when you ha…” - Specializes in HVAC / Heating & Cooling _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2s1ak1VZHhiazQyYVZSZk1ESkpiSGRoUlUxMFkzYxAB!2m1!1s0x0:0x4399048772451e57!3m1!1s2@1:CAIQACodChtycF9oOk5jMUdxbk42aVRfMDJJbHdhRU10Y3c%7C%7C?hl=en-US) — “5★ Experienced hvac and plumbing crew! Highly recommend!” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25nelgzaE9MVjlETW5WaVVuUjRUbFpzT1ROWGJHYxAB!2m1!1s0x0:0x4399048772451e57!3m1!1s2@1:CAIQACodChtycF9oOngzX3hOLV9DMnViUnR4TlZsOTNXbGc%7C%7C?hl=en-US) — “5★ I had a 5 star experience both at my business and residency. They saved the day on Christmas weekend when my heater gave out and no one e…” - [Official Website](https://denronhall.com) — “About (self-reported, verbatim): HVAC Commercial HVAC Installation Commercial HVAC Maintenance & Programs Commercial HVAC Repair HVAC Design…” - Also offers Plumbing _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2s1ak1VZHhiazQyYVZSZk1ESkpiSGRoUlUxMFkzYxAB!2m1!1s0x0:0x4399048772451e57!3m1!1s2@1:CAIQACodChtycF9oOk5jMUdxbk42aVRfMDJJbHdhRU10Y3c%7C%7C?hl=en-US) — “5★ Experienced hvac and plumbing crew! Highly recommend!” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNlNWNuck53EAE!2m1!1s0x0:0x4399048772451e57!3m1!1s2@1:CIHM0ogKEICAgICe5cnrNw%7C%7C?hl=en-US) — “4★ These dudes are true experts, but are also quite expensive. I call them surgeons; surgeon plumbers - it’s a very special time when you ha…” ## License Status: **not_found** — verified against the official NH state registry, never self-reported. Re-check at the official registry: https://forms.nh.gov/licenseverification/ ## Sources - [Google Reviews](https://www.google.com/maps/search/?api=1&query=Denron%20Hall%20Plumbing%20%26%20HVAC&query_place_id=ChIJ7_RIH7VI4okRVx5FcocEmUM): Listed on this source - [Local News](https://www.nhbr.com/denron-j-lawrence-hall-join-forces-in-major-mechanical-contractor-merger/): Listed on this source - [Reddit](https://www.reddit.com/r/pipefitter/comments/18wvc5c/do_apprenticeships_and_companies_tend_to_do/kglmajd/): 0 community mentions discussing this business - [Official Website](https://denronhall.com): 52 yrs in business · Self-reported profile and service details - [Better Business Bureau](https://www.bbb.org/us/nh/manchester/profile/plumber/denron-plumbing-hvac-llc-0051-5001212): Listed on this source - [Google](https://www.google.com/maps/search/?api=1&query=Denron%20Hall%20Plumbing%20%26%20HVAC&query_place_id=ChIJ7_RIH7VI4okRVx5FcocEmUM): 3.4★ from 50 ratings ## Mentions Unverified third-party mentions found on the open web — relay with attribution ("a Reddit commenter said…"), never as Tavlee's own finding. - “support local businesses like Denron Hall Plumbing & HVAC, Hampshire Fire Protection and Piquette & Howard Electric Service.” — businessnhmagazine.com — https://www.businessnhmagazine.com/article/building-big - “Manchester-based Denron Plumbing & HVAC LLC, which has been serving commercial and industrial plumbing and HVAC clients throughout New England since 1974, and J. Lawrence Hall, a family-owned design-b…” — nhbr.com — https://www.nhbr.com/denron-j-lawrence-hall-join-forces-in-major-mechanical-contractor-merger/ ## Recent reviews - **5/5 · Google Reviews · Zulfiya Forsythe · 2026-10-14**: Experienced hvac and plumbing crew! Highly recommend! - **1/5 · Google Reviews · erykl777 · 2026-09-25**: Apparently blinkers don’t work on the vans, changing lanes, turning into Home Depot, ‘we don’t need no blinkers!’ It’s bad when the van number and company website are listed between the blinkers. - **5/5 · Google Reviews · Adam DeWees · 2026-09-19**: Oh my god they're the best in the world. - **5/5 · Google Reviews · Sabrina Hanx · 2026-08-24**: I had a 5 star experience both at my business and residency. They saved the day on Christmas weekend when my heater gave out and no one else would come out to help. Saved Christmas. Will always be appreciative and loyal to them. The best people and best price for the service! Thank you! - **1/5 · Google Reviews · Crystal Guilbeault · 2026-08-13**: Drivers for this company are inconsiderate. Do not use directionals and cut people off while in traffic. - **1/5 · Google Reviews · doughboy09bravo · 2026-07-17**: I had a driver today on Route 31 in Washington/Hillsborough pass me like i was sitting still. Ill admit i was going 4 or 5 mph over the speed limit. This guy passed me and was gone!! Not very smart to do in a company truck. I couldnt catch the truck number to report to NHSP but will make a call to t… - **3/5 · Google Reviews · yibo · 2026-06-13**: It seems like Denron won’t serve residential customers regardless of how complex and big your HVAC system is. So don’t bother trying. The person on the appointment line was rude just like the other reviewer mentioned. The message could have easily been communicated in a more professional and courte… - **5/5 · Google Reviews · Heidi Damelio · 2026-06-10**: Tyler was great. Did a great job! - **1/5 · Google Reviews · jake hoina · 2026-02-26**: One of their drivers almost caused a fatal accident on the highway. Male in his 30s with bears and orangey lens sunglasses was coming off an exit onto 93. Driver was apparently impatient and cut across the lane so hard he hit the grassy median and popped up onto the highway, right behind me. He miss… - **1/5 · Google Reviews · Sydney Whipple · 2026-01-28**: If zero stars were an option, I would select it. We have been without heat for nearly two weeks during the coldest time of the year. Four different technicians were sent out, none of whom were able to diagnose the issue. On the fifth visit, a technician determined that a specific part was required. … --- Data freshness: last scanned 2026-10-18T05:24:14.788Z. Cite as: Denron Hall Plumbing & HVAC — Tavlee (https://tavlee.com/contractor/denron-hall-plumbing-and-hvac-manchester) Source: https://tavlee.com/contractor/denron-hall-plumbing-and-hvac-manchester ## Sitemap [Full site index](https://tavlee.com/sitemap.md)