--- title: "Lang’s HVAC LLC" description: "Lang's HVAC installed a two-zone central air system in a Wolfeboro house, according to a 2026 customer who said the work finished on time and on budget. A " doc_version: "2026-10-21" last_updated: "2026-10-21" --- # Lang’s HVAC LLC **Trade:** HVAC / Heating & Cooling · **Phone:** (603) 268-2187 · **Website:** https://www.langshvac.com/?utm_source=google&utm_medium=organic&utm_campaign=gmb-listing · **Languages:** English **Rating: 4.7/5** (medium confidence) — from 13 reviews across 5 sources. 100% of sentiment-scored reviews read net-positive. Last 6 months: 5 reviews, 0 negative. ## The honest read Lang's HVAC installed a two-zone central air system in a Wolfeboro house, according to a 2026 customer who said the work finished on time and on budget. A 2026 customer said Lang's designed that system with two 2.5-ton Rheem compressors and air handlers, and consulted on register locations and ductwork routing. Lang's HVAC, LLC's New Hampshire licence MBE2101350 is active on the state registry. The company advertises service in Alton, Gilmanton, New Durham, Wolfeboro, Gilford, Plymouth, Meredith, Concord, Belknap County and Rochester, along with 24/7 emergency service. A 2026 customer said Jim handled a replacement hot water heater in a difficult location and patiently answered questions. A 2026 customer said Lang's serviced a mini-split installed by a different company and worked through factory warranty coverage. A 2026 customer said Lang's replaced an oil furnace with a propane furnace and replaced the hot water heater. A 2026 customer said Dan and his team installed a new system in 24 hours after a complete loss of heat and hot water, restored consistent temperatures and left the basement cleaner. A 2025 customer said Lang HVAC cleaned the head unit and heat pump during maintenance on a Mitsubishi mini-split. A 2024 customer said Dan arrived at 5 p.m. and stayed another five and a half hours helping diagnose and fix the problems while explaining the work. **Strengths:** - Central air installation — a 2026 customer said completion met the schedule and budget - Heating system replacement — a 2026 customer said installation took 24 hours ## Claims & citations Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication. - A 2026 customer said Lang's installed a two-zone central air system in a Wolfeboro house on time and on budget. _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGMlF6VlBXSGx4UmtGc05FOHhNMU52VkU5WmIzYxAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CAIQACodChtycF9oOjF2QzVPWHlxRkFsNE8xM1NvVE9Zb3c%7C%7C?hl=en-US) — “5★ When we bought our 10-year-old 2,400 s.f. traditional New England center-hall colonial in Wolfeboro, we were surprised to find that it ha…” - A 2026 customer said Lang's designed a system with two 2.5-ton Rheem compressors and air handlers, and consulted on register locations and ductwork routing. _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGMlF6VlBXSGx4UmtGc05FOHhNMU52VkU5WmIzYxAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CAIQACodChtycF9oOjF2QzVPWHlxRkFsNE8xM1NvVE9Zb3c%7C%7C?hl=en-US) — “5★ When we bought our 10-year-old 2,400 s.f. traditional New England center-hall colonial in Wolfeboro, we were surprised to find that it ha…” - Lang's HVAC, LLC's New Hampshire licence MBE2101350 is active on the state registry. _(confidence: high)_ - [State License Registry](https://forms.nh.gov/licenseverification/) — “NH hvac license MBE2101350 registry-verified active — registry holder of record: Lang's HVAC, LLC” - The company advertises service in Alton, Gilmanton, New Durham, Wolfeboro, Gilford, Plymouth, Meredith, Concord, Belknap County and Rochester, along with 24/7 emergency service. _(confidence: high)_ - [Official Website](https://www.langshvac.com) — “Stated offer (self-reported): 24/7 emergency service” - [Official Website](https://www.langshvac.com) — “Stated service area (self-reported): Alton, Gilmanton, New Durham, Wolfeboro, Gilford, Plymouth, Meredith, Concord, Belknap County, Rocheste…” - A 2026 customer said Jim handled a replacement hot water heater in a difficult location and patiently answered questions. _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25aaFYxTldNRUV4TkVGWVIzWXRXalp6WDJ4Tk1XYxAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CAIQACodChtycF9oOnZhV1NWMEExNEFYR3YtWjZzX2xNMWc%7C%7C?hl=en-US) — “5★ Great experience getting a replacement hot water heater! The old unit was located in a tough place to navigate in and out of. Jim was ver…” - A 2026 customer said Lang's serviced a mini-split installed by a different company and worked through factory warranty coverage. _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21kNWRVVTVSRTVaZERCWFRGSklkVTVhVjNWMU1VRRAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CAIQACodChtycF9oOmd5dUU5RE5ZdDBXTFJIdU5aV3V1MUE%7C%7C?hl=en-US) — “5★ Called Langs as they are an LG pro dealer to service my mini split that was installed by a different company. Langs was great to deal wi…” - A 2026 customer said Lang's replaced an oil furnace with a propane furnace and replaced the hot water heater. _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pWYU1tUnZkRWhZZFRCb1VtaEJkMGR4ZEZreVNGRRAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CAIQACodChtycF9oOjVaMmRvdEhYdTBoUmhBd0dxdFkySFE%7C%7C?hl=en-US) — “5★ Langs replaced our oil furnace with a propane furnace, our hot water heater, and they did an outstanding job. I highly recommend them fo…” - A 2026 customer said Dan and his team installed a new system in 24 hours after a complete loss of heat and hot water, restored consistent temperatures and left the basement cleaner. _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25jMWVIZFRSWGxMTjNwalIzWnBMVlZpUmtwa2QzYxAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CAIQACodChtycF9oOnc1eHdTRXlLN3pjR3ZpLVViRkpkd3c%7C%7C?hl=en-US) — “5★ Run, don’t walk to work with Dan and Lang’s. I had been having problems with my heating system and had lost heat and hot water completel…” - A 2025 customer said Lang HVAC cleaned the head unit and heat pump during maintenance on a Mitsubishi mini-split. _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnTURJem83S25RRRAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CIHM0ogKEICAgMDIzo7KnQE%7C%7C?hl=en-US) — “5★ Lang HVAC came to our house on Monday to do the bi annual maintenance on our Mitsubishi mini split. My wife was home and she was very imp…” - A 2024 customer said Dan arrived at 5 p.m. and stayed another five and a half hours helping diagnose and fix the problems while explaining the work. _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUR2dTlHVnVBRRAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CIHM0ogKEICAgIDvu9GVuAE%7C%7C?hl=en-US) — “5★ 2 days before Christmas, and Dan showed up at 5pm. after being out on calls all day. he stayed at my house for another 5.5 hours helping …” - Specializes in HVAC / Heating & Cooling _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGMlF6VlBXSGx4UmtGc05FOHhNMU52VkU5WmIzYxAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CAIQACodChtycF9oOjF2QzVPWHlxRkFsNE8xM1NvVE9Zb3c%7C%7C?hl=en-US) — “5★ When we bought our 10-year-old 2,400 s.f. traditional New England center-hall colonial in Wolfeboro, we were surprised to find that it ha…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pWYU1tUnZkRWhZZFRCb1VtaEJkMGR4ZEZreVNGRRAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CAIQACodChtycF9oOjVaMmRvdEhYdTBoUmhBd0dxdFkySFE%7C%7C?hl=en-US) — “5★ Langs replaced our oil furnace with a propane furnace, our hot water heater, and they did an outstanding job. I highly recommend them fo…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnTURJem83S25RRRAB!2m1!1s0x0:0x70215491ed334894!3m1!1s2@1:CIHM0ogKEICAgMDIzo7KnQE%7C%7C?hl=en-US) — “5★ Lang HVAC came to our house on Monday to do the bi annual maintenance on our Mitsubishi mini split. My wife was home and she was very imp…” ## License Status: **active** (#MBE2101350, hvac) — verified against the official NH state registry on 2026-10-18, never self-reported. Re-check at the official registry: https://forms.nh.gov/licenseverification/ ## Sources - [Reddit](https://www.reddit.com/r/newhampshire/comments/1wu8oe0/almost_17k_for_boiler_and_water_heater/pd0zqi7/): 0 community mentions discussing this business - [Google Reviews](https://www.google.com/maps/search/?api=1&query=Lang%E2%80%99s%20HVAC%20LLC&query_place_id=ChIJ86mh9lZ8nwYRlEgz7ZFUIXA): Listed on this source - [Official Website](https://www.langshvac.com): Self-reported profile and service details - [Google](https://www.google.com/maps/search/?api=1&query=Lang%E2%80%99s%20HVAC%20LLC&query_place_id=ChIJ86mh9lZ8nwYRlEgz7ZFUIXA): 5.0★ from 13 ratings - [Local News](https://www.laars.com/about-us/case-studies/case-studies-commercial/heating-system-failure-leads-to-replacement-at-rochester-nh-assisted-living-facility): Listed on this source ## Mentions Unverified third-party mentions found on the open web — relay with attribution ("a Reddit commenter said…"), never as Tavlee's own finding. - “I loved Lang HVAC in the lakes region.” — u/natethegreek in r/newhampshire (2026-09-30) — https://www.reddit.com/r/newhampshire/comments/1wu8oe0/almost_17k_for_boiler_and_water_heater/pd0zqi7/ - “Danny Lang with Lang’s HVAC from Dalton, New Hampshire, was called in to examine the unit and provide recommendations. Hoping for a quick solution, Lang’s HVAC first attempted to prolong the original …” — laars.com — https://www.laars.com/about-us/case-studies/case-studies-commercial/heating-system-failure-leads-to-replacement-at-rochester-nh-assisted-living-facility ## Recent reviews - **5/5 · Google Reviews · Nicholas Ciancarelli · 2026-08-18**: The Best HVAc in the Lake's Region - **5/5 · Google Reviews · Larry Crook · 2026-07-30**: Great experience getting a replacement hot water heater! The old unit was located in a tough place to navigate in and out of. Jim was very knowledgeable and handled it all very professionally. He was also very patient with me and the many questions I had for him. Nice job! - **5/5 · Google Reviews · Dr. B · 2026-07-04**: When we bought our 10-year-old 2,400 s.f. traditional New England center-hall colonial in Wolfeboro, we were surprised to find that it had no central air conditioning - a must with this design in this climate. We asked our agent for a recommendation on a local HVAC contractor, and she said, "Only on… - **5/5 · Google Reviews · Matthew Brown · 2026-05-20**: Called Langs as they are an LG pro dealer to service my mini split that was installed by a different company. Langs was great to deal with, communication was excellent. They also worked through making sure I was still covered under my factory warranty. Would totally recommend this company - **5/5 · Google Reviews · Donna Tasso-Johnson · 2026-05-07**: Langs replaced our oil furnace with a propane furnace, our hot water heater, and they did an outstanding job. I highly recommend them for their professionalism, timeliness, responsiveness, and thoughtfulness. They're great! - **5/5 · Google Reviews · Faith A. F · 2026-03-11**: Run, don’t walk to work with Dan and Lang’s. I had been having problems with my heating system and had lost heat and hot water completely. Dan and his team installed a completely new system in just 24 hours and I finally have consistent temperature in my home. Not only that, they left my basement… - **5/5 · Google Reviews · Erika Gray · 2025-12-28**: They came out the day after Christmas to repair our Viessmann unit. They were friendly and knowledgeable. Very pleased with their work. - **5/5 · Google Reviews · douglas harrington · 2025-05-22**: Dan I came up with the best design and configuration for my house and my budget . I had four Other proposals and all seemed disinterested in what I really wanted. Dan came up with a plan , Mike and Rob Executed a difficult install without a complaint. Their workmanship is second to none , Hard-work… - **5/5 · Google Reviews · Phil · 2025-04-09**: Lang HVAC came to our house on Monday to do the bi annual maintenance on our Mitsubishi mini split. My wife was home and she was very impressed with the tech’s professionalism and politeness. The head unit and heat pump was cleaned to look like new. The previous company we had did not go above and b… - **5/5 · Google Reviews · Daniel Clocksin · 2025-03-11**: I contacted Lang’s to assist with getting heat and hot water installed in my house, and couldn’t be happier with the quality of work and attention to detail. Dan was able to work with me not only to scope out what was needed in the area, but also to come back and make sure that everything was workin… --- Data freshness: last scanned 2026-10-18T04:21:38.448Z. Cite as: Lang’s HVAC LLC — Tavlee (https://tavlee.com/contractor/lang-s-hvac-llc) Source: https://tavlee.com/contractor/lang-s-hvac-llc ## Sitemap [Full site index](https://tavlee.com/sitemap.md)