--- title: "Cornerstone Electrical Services, LLC" description: "A recent customer called Cornerstone Electrical Services, LLC about a hardwired smoke alarm. Vinny returned the call promptly, kept in touch, scheduled the" doc_version: "2026-10-16" last_updated: "2026-10-16" --- # Cornerstone Electrical Services, LLC **Trade:** Electrical · **Address:** 394 Riverside Ave, Bristol, CT 06010 · **Phone:** (860) 325-0179 · **Website:** https://cornerstoneelectricalservices.com/electrician-ct/ · **Languages:** English **Rating: 4.0/5** (medium confidence) — from 22 reviews across 5 sources. 91% of sentiment-scored reviews read net-positive. Last 6 months: 1 reviews, 0 negative. ## The honest read A recent customer called Cornerstone Electrical Services, LLC about a hardwired smoke alarm. Vinny returned the call promptly, kept in touch, scheduled the appointment for the following Monday and checked the customer's other detectors too. A 2026 customer said Tommy explained that chirping happens with old detectors, advised replacing them, and chose replacements with lithium batteries. The jobs run well past smoke alarms. A 2025 customer said the company designed and installed outdoor and landscape lighting at their house. A 2025 customer said Anthony did electrical work at their home after a rough start, and that Vinny later came back to hook up their spa. A 2024 customer described a residential electrical project with Josh and team that covered an antique main house, various outbuildings and landscape lighting. A 2024 customer said the company worked with their general contractor on a bathroom renovation. A 2024 customer who moved into a condo said Ed's crew installed a new chandelier and a bedroom ceiling fan. A 2024 customer named Joshua Martinez as the company's owner and said he helped when their TV was not working the day before extended family was set to arrive on Thanksgiving. A 2025 customer gave three stars over difficulty understanding email through an automated agent. A 2021 one-star review described brake checking people in the fast lane on route 8 and said it was being reported to the DOT. **Strengths:** - Smoke alarm service — a recent customer said Vinny also checked other detectors - Landscape lighting — a 2025 customer said the company designed and installed it - An antique house project — a 2024 customer described house and outbuilding work **Concerns:** - Automated email — a 2025 customer had difficulty understanding it - Road conduct — a 2021 reviewer described brake checking on route 8 ## Claims & citations Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication. - 4.8 stars from 26 Google ratings _(confidence: high)_ - [Google](https://www.google.com/maps/search/?api=1&query=Cornerstone%20Electrical%20Services%2C%20LLC&query_place_id=ChIJP2TgFTao54kR6gFU7dFxF7w) — “Google: 4.8★ from 26 ratings” - A recent customer said Vinny returned the call promptly about a smoke alarm and checked the other detectors _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2t3eVJWSmhUa05LVHkxcVZpMHdhREp5UjNSSVMyYxAB!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CAIQACodChtycF9oOkwyRVJhTkNKTy1qVi0waDJyR3RIS2c%7C%7C?hl=en-US) — “5★ I had an issue with my hardwired smoke alarm. I called Cornerstone on Thursday and Vinny promptly returned my call and offered to come o…” - A 2026 customer said Tommy replaced 10-year-old chirping smoke detectors with lithium-battery units _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21KWk9IZHJkekYxTkd4d1ZVWmhZalprVWpVNWFIYxAB!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CAIQACodChtycF9oOmJZOHdrdzF1NGxwVUZhYjZkUjU5aHc%7C%7C?hl=en-US) — “5★ Tommy hurried to help me when I had multiple smoke detectors chirping even with new batteries. He carefully reviewed the situation and no…” - A 2025 customer said the company designed and installed outdoor and landscape lighting _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xObGJWQmxlRzlmVm1aSFNFd3hXVXc0YUdSRWRGRRAB!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CAIQACodChtycF9oOlNlbVBleG9fVmZHSEwxWUw4aGREdFE%7C%7C?hl=en-US) — “5★ I recently had Cornerstone handle a number of electrical projects at my house, both indoor and outdoor, and I could not be happier with t…” - A 2024 customer described a residential electrical project on an antique main house, outbuildings and landscape lighting _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNIclo3TUlREAE!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CIHM0ogKEICAgICHrZ7MIQ%7C%7C?hl=en-US) — “5★ Worked very closely with Josh and team on a comprehensive residential electrical project that included an antique main house, various out…” - A 2024 customer named Joshua Martinez as the company's owner _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNYckwydGtRRRAB!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CIHM0ogKEICAgICXrL2tkQE%7C%7C?hl=en-US) — “5★ Joshua Martinez, Owner of Cornerstone Electrical Services, LLC is in a class of his own! I have been a customer of Cornerstone Electrical…” - A 2025 customer gave three stars over difficulty understanding email through an automated agent _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21STGNTMHpRUzFmVEhOYVZqWlhkVEJIVUhweWFYYxAB!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CAIQACodChtycF9oOmRLcS0zQS1fTHNaVjZXdTBHUHpyaXc%7C%7C?hl=en-US) — “3★ Difficulty understanding email through automated agent.” - A 2021 one-star review described brake checking on route 8 _(confidence: low)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNHc2F2NHZBRRAB!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CIHM0ogKEICAgICGsav4vAE%7C%7C?hl=en-US) — “1★ Driving down route 8 in the fast lane brake checking people. If they display this level of carelessness who would want them working for t…” - Specializes in Electrical _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21KWk9IZHJkekYxTkd4d1ZVWmhZalprVWpVNWFIYxAB!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CAIQACodChtycF9oOmJZOHdrdzF1NGxwVUZhYjZkUjU5aHc%7C%7C?hl=en-US) — “5★ Tommy hurried to help me when I had multiple smoke detectors chirping even with new batteries. He carefully reviewed the situation and no…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xObGJWQmxlRzlmVm1aSFNFd3hXVXc0YUdSRWRGRRAB!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CAIQACodChtycF9oOlNlbVBleG9fVmZHSEwxWUw4aGREdFE%7C%7C?hl=en-US) — “5★ I recently had Cornerstone handle a number of electrical projects at my house, both indoor and outdoor, and I could not be happier with t…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNIcS0zWmtRRRAB!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CIHM0ogKEICAgICHq-3ZkQE%7C%7C?hl=en-US) — “5★ Ed was referred to me by a neighbor . I moved into a condo which needed alot if electrical work . His crew did an excellent job . They we…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNIclo3TUlREAE!2m1!1s0x0:0xbc1771d1ed5401ea!3m1!1s2@1:CIHM0ogKEICAgICHrZ7MIQ%7C%7C?hl=en-US) — “5★ Worked very closely with Josh and team on a comprehensive residential electrical project that included an antique main house, various out…” ## License Status: **not_found** — verified against the official CT state registry, never self-reported. Re-check at the official registry: https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx ## Sources - [Google](https://www.google.com/maps/search/?api=1&query=Cornerstone%20Electrical%20Services%2C%20LLC&query_place_id=ChIJP2TgFTao54kR6gFU7dFxF7w): 4.8★ from 26 ratings - [Official Website](https://cornerstoneelectricalservices.com): Self-reported profile and service details - [Google Reviews](https://www.google.com/maps/search/?api=1&query=Cornerstone%20Electrical%20Services%2C%20LLC&query_place_id=ChIJP2TgFTao54kR6gFU7dFxF7w): Listed on this source - [BuildZoom](https://www.buildzoom.com/contractor/cornerstone-electrical-services): Listed on this source - [Local News](https://deldoors.site/resources/): Listed on this source ## Recent reviews - **5/5 · Google Reviews · Melissa Davis · 2026-07-20**: I had an issue with my hardwired smoke alarm. I called Cornerstone on Thursday and Vinny promptly returned my call and offered to come on Friday but I was unavailable. Vinny kept in touch and scheduled my appointment for Monday after. He was a pleasant, prompt and professional. He even checked my o… - **5/5 · Google Reviews · LINDA HARRIS NECKLES · 2026-01-21**: Staff was prompt, efficient and professional. They explained things that needed explanation and any follow-up questions. I would certainly recommend. - **5/5 · Google Reviews · Jeanne Hochstetler · 2026-01-20**: Tommy hurried to help me when I had multiple smoke detectors chirping even with new batteries. He carefully reviewed the situation and noted that this problem happens with old detectors. I confirmed that they were 10 years old. He gave the practical advice to replace them. Fortunately, he selected r… - **5/5 · Google Reviews · Jodi Fogarty · 2026-01-14**: One of the best subcontractors we have ever worked with. We keep Cornerstone Electrical Services on our speed dial. They are always on time, pleasant to work with and have reasonable pricing. Would highly recommend!! - **5/5 · Google Reviews · Matthew Lepowsky · 2025-11-03**: I recently had Cornerstone handle a number of electrical projects at my house, both indoor and outdoor, and I could not be happier with their work. The electricians were friendly, thorough, professional, and neat. They designed and installed outdoor and landscape lighting that elevated my home's cur… - **3/5 · Google Reviews · Karla Quiroz · 2025-09-12**: Difficulty understanding email through automated agent. - **5/5 · Google Reviews · Daniel G · 2025-09-12**: I recently had Cornerstone Electric over to handle some electrical work at my home. While we did have a bit of a rough start initially, everything ended up working out just fine. The work was done professionally, and I want to give a special shout-out to Anthony, the technician, who was knowledgeabl… - **5/5 · Google Reviews · Arthur K · 2025-07-13**: Cornerstone is my goto for any Electrical services I need, and as usual had quick, efficient and quality service. Very professional and courteous service - Thanks guys - **5/5 · Google Reviews · Doc A · 2025-06-19**: Responsive professional company. Vinny was efficient and completed project on time and at fair cost to me. When I need even larger project like a Generac or whole house surge protector, I will call here first. - **5/5 · Google Reviews · Angela DiStefano · 2025-02-01**: Professional and excellent work! --- Data freshness: last scanned 2026-10-14T01:01:38.017Z. 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