--- title: "High Line Mechanical Inc." description: "A 2025 customer described a switch from oil to propane at High Line Mechanical Inc.'s hands: a new propane boiler, two a/c units and air handlers replaced," doc_version: "2026-10-20" last_updated: "2026-10-20" --- # High Line Mechanical Inc. **Trade:** HVAC / Heating & Cooling · **Phone:** (603) 669-1919 · **Website:** https://highlinemechanical.com/ · **Languages:** English **Rating: 3.2/5** (medium confidence) — from 11 reviews across 7 sources. 82% of sentiment-scored reviews read net-positive. Last 6 months: 1 reviews, 0 negative. ## The honest read A 2025 customer described a switch from oil to propane at High Line Mechanical Inc.'s hands: a new propane boiler, two a/c units and air handlers replaced, and a job they said was completed on time and within budget. A 2022 customer said the company offered to coordinate the complete installation, including excavation, and got the install done in 48 hours without major disruptions to the tenants. Some of the work is quick service calls. A 2026 customer getting ready to sell found a leak that would cause a failed inspection and said Rick was there within a couple of hours and discussed everything along the way. A 2025 customer said Marty walked them through steps to diagnose the problem on a Saturday no-heat call, on a unit he had installed 9 years earlier. A 2025 reviewer thanked Marty Bernard for over-the-phone help getting a furnace working again. In 2022, a customer said Racheal got them in the same day for a leaking dishwasher. It holds 4.7 stars from 12 Google ratings and an A+ grade with the BBB. A 2023 customer said they installed a furnace, the town inspector agreed they were supposed to come back to fix the roof boot and a hole left in the wall, and they never did; that customer said a voicemail went without a call back. On the BBB, a reviewer called the company extremely high priced for the service delivered. Its New Hampshire HVAC licence, number MBE1801017, held by High Line Mechanical Inc, is expired on the state registry. **Strengths:** - Oil-to-propane switch — a 2025 customer said the job was on time, within budget - A quick visit — a 2026 customer said Rick came within a couple of hours - Phone troubleshooting — a 2025 customer said Marty walked them through diagnosing **Concerns:** - An unfinished fix — a 2023 customer said they never returned to fix the roof boot - Expired licence — its New Hampshire HVAC licence is expired on the state registry ## Claims & citations Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication. - A 2025 customer described an oil-to-propane switch with a new propane boiler and two a/c units and air handlers replaced _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21GbVFubEhObDluU0hsTlZIUmtMV3h6TTE5M1dtYxAB!2m1!1s0x0:0x80e5b1bf4e8c23e3!3m1!1s2@1:CAIQACodChtycF9oOmFmQnlHNl9nSHlNVHRkLWxzM193Wmc%7C%7C?hl=en-US) — “5★ Switched from oil to propane, installed new propane boiler, replaced 2 a/c units and air handlers. The job was completed on time and wit…” - A 2022 customer said the company coordinated a complete installation including excavation and finished the install in 48 hours _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQtMzVmVkZnEAE!2m1!1s0x0:0x80e5b1bf4e8c23e3!3m1!1s2@1:CIHM0ogKEICAgID-35fVFg%7C%7C?hl=en-US) — “5★ The team at Highline has been first rate. They were quick to visit the site, assess the situation and provide a quote. Compared to the ot…” - A 2026 customer said Rick was there within a couple of hours for a leak _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xkbWRWQnBlVjlHWVY5VGNUWk1VRTFwY3kxdE9IYxAB!2m1!1s0x0:0x80e5b1bf4e8c23e3!3m1!1s2@1:CAIQACodChtycF9oOldmdVBpeV9GYV9TcTZMUE1pcy1tOHc%7C%7C?hl=en-US) — “5★ Getting ready to sell & discovered a leak that would cause a failed inspection. When I called High Line they had someone (Rick) in the ar…” - A 2025 customer said Marty walked them through diagnosing a Saturday no-heat call _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnTURROEllc2t3RRAB!2m1!1s0x0:0x80e5b1bf4e8c23e3!3m1!1s2@1:CIHM0ogKEICAgMDQ8IeskwE%7C%7C?hl=en-US) — “5★ I called Marty on a Saturday with a no heat call..He was great and walked me through steps to diagnose the problem even tho he installed …” - A 2025 reviewer thanked Marty Bernard for over-the-phone help getting a furnace working again _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnTUNRN3JEUnRRRRAB!2m1!1s0x0:0x80e5b1bf4e8c23e3!3m1!1s2@1:CIHM0ogKEICAgMCQ7rDRtQE%7C%7C?hl=en-US) — “5★ Very grateful to Marty Bernard for his over the phone help to get our furnace working again!!! Great coach and super responsive.” - A 2023 customer said the company never came back to fix a roof boot and a hole in the wall after a furnace install, and did not return a voicemail _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURWajRMOU53EAE!2m1!1s0x0:0x80e5b1bf4e8c23e3!3m1!1s2@1:CIHM0ogKEICAgIDVj4L9Nw%7C%7C?hl=en-US) — “1★ These people installed a furnace in my home. My boyfriend at the time was a contractor and noticed the boot on the roof was incorrect. Th…” - A BBB reviewer called the company extremely high priced for the service delivered _(confidence: low)_ - [Better Business Bureau](https://www.bbb.org/us/nh/hooksett/profile/heating-and-air-conditioning/high-line-mechanical-inc-0051-92011919) — “I wish I could give a negative rating. This organization is extremely high priced for the service delivered and felt like a complete rip-off…” - Its New Hampshire HVAC licence MBE1801017 is expired on the state registry _(confidence: high)_ - [State License Registry](https://forms.nh.gov/licenseverification/) — “NH hvac license MBE1801017 registry-verified expired — registry holder of record: HIGH LINE MECHANICAL INC” - 4.7 stars from 12 Google ratings _(confidence: high)_ - [Google](https://www.google.com/maps/search/?api=1&query=High%20Line%20Mechanical%20Inc.&query_place_id=ChIJ__-rDHJG4okR4yOMTr-x5YA) — “Google: 4.7★ from 12 ratings” - A+ grade with the BBB _(confidence: high)_ - [Better Business Bureau](https://www.bbb.org/us/nh/hooksett/profile/heating-and-air-conditioning/high-line-mechanical-inc-0051-92011919) — “Better Business Bureau grade: A+” - Specializes in HVAC / Heating & Cooling _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21GbVFubEhObDluU0hsTlZIUmtMV3h6TTE5M1dtYxAB!2m1!1s0x0:0x80e5b1bf4e8c23e3!3m1!1s2@1:CAIQACodChtycF9oOmFmQnlHNl9nSHlNVHRkLWxzM193Wmc%7C%7C?hl=en-US) — “5★ Switched from oil to propane, installed new propane boiler, replaced 2 a/c units and air handlers. The job was completed on time and wit…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnTURROEllc2t3RRAB!2m1!1s0x0:0x80e5b1bf4e8c23e3!3m1!1s2@1:CIHM0ogKEICAgMDQ8IeskwE%7C%7C?hl=en-US) — “5★ I called Marty on a Saturday with a no heat call..He was great and walked me through steps to diagnose the problem even tho he installed …” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQtMzVmVkZnEAE!2m1!1s0x0:0x80e5b1bf4e8c23e3!3m1!1s2@1:CIHM0ogKEICAgID-35fVFg%7C%7C?hl=en-US) — “5★ The team at Highline has been first rate. They were quick to visit the site, assess the situation and provide a quote. Compared to the ot…” ## License Status: **expired** (#MBE1801017, 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/philadelphia/comments/17532pq/hvac_contractor_recommendations_have_central_hvac/k4ej3g7/): 0 community mentions discussing this business - [Local News](https://stoneterrace.org/wp-content/uploads/2021/02/STO-1.20.2021-MM.pdf): Listed on this source - [Google Reviews](https://www.google.com/maps/search/?api=1&query=High%20Line%20Mechanical%20Inc.&query_place_id=ChIJ__-rDHJG4okR4yOMTr-x5YA): Listed on this source - [Official Website](https://highlinemechanical.com): Self-reported profile and service details - [BuildZoom](https://www.buildzoom.com/contractor/high-line-mechanical-inc): Listed on this source - [Google](https://www.google.com/maps/search/?api=1&query=High%20Line%20Mechanical%20Inc.&query_place_id=ChIJ__-rDHJG4okR4yOMTr-x5YA): 4.7★ from 12 ratings - [Better Business Bureau](https://www.bbb.org/us/nh/hooksett/profile/heating-and-air-conditioning/high-line-mechanical-inc-0051-92011919): Listed on this source ## Recent reviews - **5/5 · Google Reviews · Jay 0 · 2026-06-29**: I highly recommend Highline Heating & Air Conditioning. They were professional, knowledgeable, and took the time to thoroughly research my questions It's hard to find a company that's both trustworthy and genuinely committed to helping customers make informed decisions. If you're looking for an HVA… - **5/5 · Google Reviews · Brenda Sullivan · 2026-04-16**: Getting ready to sell & discovered a leak that would cause a failed inspection. When I called High Line they had someone (Rick) in the area. Rick was here w/in a couple of hours; professional, pleasant and most importantly knowledgeable. He took care of the issues as quickly as possible but discusse… - **5/5 · Google Reviews · Bob Lachance · 2025-07-22**: Switched from oil to propane, installed new propane boiler, replaced 2 a/c units and air handlers. The job was completed on time and within budget with quality workmanship and exceptional customer service...nice when that happens! - **5/5 · Google Reviews · Aoife Fortin · 2025-03-09**: Best in the business. Has helped me with a number of heating systems in my multi families. - **5/5 · Google Reviews · robert roulx · 2025-03-08**: I called Marty on a Saturday with a no heat call..He was great and walked me through steps to diagnose the problem even tho he installed the unit 9 years ago..Very patient, a guality install would Definitely recommend High Linr Machanical inc. - **5/5 · Google Reviews · Nancy Cox · 2025-03-04**: Very grateful to Marty Bernard for his over the phone help to get our furnace working again!!! Great coach and super responsive. - **1/5 · Google Reviews · Shelly Mitchell · 2023-12-18**: These people installed a furnace in my home. My boyfriend at the time was a contractor and noticed the boot on the roof was incorrect. The town inspector agreed they were supposed to come back and fix it along with the huge hole they left in my wall they never did. I sit here now, and I really wish … - **5/5 · Google Reviews · Lester Fehr · 2022-12-13**: The team at Highline has been first rate. They were quick to visit the site, assess the situation and provide a quote. Compared to the other vendors they offered to coordinate the complete installation including excavation, something none of the other vendors could do. Permits, coordinating with Eas… - **5/5 · Google Reviews · Debby Divine Skincare · 2022-10-31**: Excellent! Prompt and Reliable with the utmost Professionalism from Marty and his team! Although they have a very busy schedule, Racheal was able to get me in the very same day to address my leaking dishwasher. Since I'm not replacing it, he even hauled it off for me! Previously, Highline addressed … - **Better Business Bureau · NANDKUMAR B**: I wish I could give a negative rating. This organization is extremely high priced for the service delivered and felt like a complete rip-off. --- Data freshness: last scanned 2026-10-18T02:44:03.938Z. Cite as: High Line Mechanical Inc. — Tavlee (https://tavlee.com/contractor/high-line-mechanical-inc) Source: https://tavlee.com/contractor/high-line-mechanical-inc ## Sitemap [Full site index](https://tavlee.com/sitemap.md)