Cotti Johnson HVAC, Inc.

generator service

This pro has maintained an average of 4.5+ stars throughout their time with Angi.

About us

Cotti Johnson has been a trusted name for over 75 years, providing expert HVAC, plumbing, and electrical services to homeowners in the Greater Boston area. We specialize in HVAC installation, repair, and maintenance, ensuring your home stays comfortable year-round. Our plumbing services range from leak repairs to new installations, while our licensed electricians handle all electrical needs, including panel upgrades and lighting installations. Trust Cotti Johnson for professional, reliable, and comprehensive home services.

Business highlights

81 years of trusted experience
Emergency Services Offered

Amenities

Free Estimates
Yes
Warranties
Yes
Emergency Services
Yes


Accepted payment methods

CreditCard

Reviews

4.549 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
84%
4
6%
3
2%
2
2%
1
6%


Rating CategoryRating out of 5
quality
4.7
value
4.3
responsiveness
4.6
Showing 26-49 of 49 reviews

STEVEN C.
03/2023
5.0
very professional outstanding service

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Emmanuel U.
02/2023
5.0
CJ personnel is great and very professional, very responsive. I will use them as my principal vendor for any electrical and heating needs. Great job

Rating CategoryRating out of 5
quality
5.0
value
4.5
responsiveness
5.0

Yes, I recommend this pro
$981

Jim B.
02/2023
5.0
Outsdanding service.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$400

Roshan J.
12/2022
5.0
JT is great, very professional and quick to complete the job with options to choose from.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Charlotte S.
12/2022
4.5
Out of his way to the job

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
4.5

Yes, I recommend this pro

Lorry S.
12/2022
0.5
Overpriced. Iâ ve never been charged for estimates and not only did they charge for the estimate but they werenâ t willing to credit the price of the estimate but they were twice as expensive as other electricians. The estimate had to be prepaid! I donâ t know about the quality of their work but the sticker price was enough and I never received a receipt for what I paid them. I like written quotes. They are too sophisticated for my pocket book as a senior citizen and 100% disabled veteran.

Rating CategoryRating out of 5
quality
3.0
value
0.5
responsiveness
3.0


Wayne F.
11/2022
3.5
Everything was excellent, But way too expensive.

Rating CategoryRating out of 5
quality
5.0
value
1.5
responsiveness
4.5

Yes, I recommend this pro
$80,000

Gregory D. H.
11/2022
2.0
Inconsistent pricing-required a fee ($) upfront to be part of the service work. This fee ($) was not applied to final bill.

Rating CategoryRating out of 5
quality
3.0
value
1.0
responsiveness
3.0


Kenkre M.
10/2022
5.0
Getting an estimate and subsequently replacing an existing backup generator was straightforward. Everything went smoothly and the system is working without any issues. Everyone was polite and professional. Very happy with the company. Highly recommended.

Rating CategoryRating out of 5
quality
5.0
value
4.5
responsiveness
5.0

Yes, I recommend this pro
$12,000

Mary Anne D.
10/2022
5.0
Responded immediately to the side effects of a water break in the house. Immediately restored electrical services to dry areas, came back a few days later to restore more services. Gave detailed proposal before work was initiated, had enough supplies on truck to immediately replace most of affected parts. and advised on purchase of replacement fixtures. The technician was cheerful and understood my goals in restoring service.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Katreena S.
10/2022
5.0
This is a great team to work with. Standing from the sales rep, the installers. The office worked around my schedule at all times. Any questions I had they stopped they explained. They walked me through every part of my generator and the steps I need to take to care for it. They took care of all the paperwork inspections licenses. Their finance team was wonderful to work with. There was no mess in my yard nor my basement. You would never know they were here unless you walked around the side of the house and saw the generator. Now New England bring on your storms I'm ready! I couldn't have said that without this company behind me 100%.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Victoria C.
08/2022
5.0
Arrived on time. Immediately identified the issue and took care of everything. Iâ m delighted. No more fire alarms going off in the middle of the night.ð

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Gunar V.
08/2022
5.0
Very happy with Cotti Johnson employees , very courteous and patient with our questions.

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

Nicholas V.
08/2022
5.0
Great work and communication!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Emma B.
08/2022
4.5
Had a great experience (so far - we have a lot left to finish on our project) with Daniel from Cotti Johnson. They are clearly a well-established and highly professional company. He spent a lot of time going through our 110 year old home to check every outlet and inspect all current wiring for a planned electrical upgrade. He found some scary patch jobs that were quickly remedied and I liked that he presented the “good, better, best” options to us and we were able to land on things to do immediately to correct safety and code issues and plan for a return visit to handle the upgrades. Most impressed that they were reliable and actually showed up which has not been the case with many other Cape contractors/tradespeople we’ve tried to hire this summer. Top notch and would use them again.

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
4.5

Yes, I recommend this pro

Gunar V.
07/2022
5.0
Very happy with this company very prompt very professional explained everything in detail so I would know what was happening.

Rating CategoryRating out of 5
quality
5.0
value
4.5
responsiveness
5.0

Yes, I recommend this pro

Sandy F.
06/2022
5.0
I was very happy with this company very prompt very professional explained everything so I would know what was happening

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Jack H.
03/2022
5.0
Perfectly done.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$3,500

Gustavo C.
04/2016
4.0
Great service! Exceptional customer service! Reasonable pricing.

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

Patricia L.
07/2015
5.0
they treated me very well and I would do business with them again. I did not feel like they are treating to cut corners or rip off the customer . I am very glad I used them.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Edward M.
04/2015
5.0
very professional; knowledgeable and neat

Rating CategoryRating out of 5
quality
5.0
value
4.5
responsiveness
5.0

Yes, I recommend this pro

Jean T.
03/2015
5.0
Initial response was immediate. Office called next day as planned. Repair person was quick,knowledgeable, and polite. Price was competitive. Will definatly use them in the future. Joe and Jean

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
    • 1
    • 2(current)

Contact information

30 Waverly St, Taunton, MA 02780

https://www.cottijohnsonhvac.com/

Service hours

Monday:
7:00 AM - 5:00 PM
Tuesday:
7:00 AM - 5:00 PM
Wednesday:
7:00 AM - 5:00 PM
Thursday:
7:00 AM - 5:00 PM
Friday:
7:00 AM - 5:00 PM
Saturday:
Closed
Sunday:
Closed

Licensing

Licensed*

Trade License Number
9119
Trade License Expiration
05/01/2026
State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

*Contact business to see additional licenses.


Service Categories

generator service

FAQ

Monday: 7:00 AM - 5:00 PM

Tuesday: 7:00 AM - 5:00 PM

Wednesday: 7:00 AM - 5:00 PM

Thursday: 7:00 AM - 5:00 PM

Friday: 7:00 AM - 5:00 PM

Saturday: Closed

Sunday: Closed

Cotti Johnson HVAC, Inc. accepts the following forms of payment: CreditCard
Yes, Cotti Johnson HVAC, Inc. offers free project estimates.
No, Cotti Johnson HVAC, Inc. does not offer eco-friendly accreditations.
No, Cotti Johnson HVAC, Inc. does not offer a senior discount.
Yes, Cotti Johnson HVAC, Inc. offers emergency services.
Yes, Cotti Johnson HVAC, Inc. offers warranties.

Contact information

30 Waverly St, Taunton, MA 02780

https://www.cottijohnsonhvac.com/

Service hours

Monday:
7:00 AM - 5:00 PM
Tuesday:
7:00 AM - 5:00 PM
Wednesday:
7:00 AM - 5:00 PM
Thursday:
7:00 AM - 5:00 PM
Friday:
7:00 AM - 5:00 PM
Saturday:
Closed
Sunday:
Closed