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Cornerstone Services LLC

Main Services: Electical, Plumbing, Handyman, Home and Office Cleaning, HVAC

Description: Cornerstone provides AMAZING SERVICE at an HONEST price. We aren't satisfied unless you are. Our service experts go the extra mile to ensure that you're happy with our service and work product.

Service Area: East Derry, Bedford, Litchfield, Pelham, Deerfield, Newburyport, Essex, Newfields, Tyngsboro, Stratham, Fremont, Hooksett, Newbury, Goffstown, Hampstead, Danville, Amherst, Dracut, Auburn, Hudson, East Candia, Greenland, Plaistow, Hollis, Salisbury, Andover, Durham, Exeter, Brookline, West Nottingham

What sets us apart from other contractors: Integrity is our highest core value. In everything we do, we believe in honesty and transparency.

We are best known for: Up front pricing is our number one goal. We don't provide estimates, those are guesses. We provide multiple options for your needs.

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50 Reviews

Review Me

Overall

Work Description: Powerwashing Exterior

Comments: Wanted to charge a fee to provide a quote. Unacceptable!

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Work Description: Troubleshooting

Comments: I would prefer to have the 2 gentlemen who serviced my home today back for any additional projects in the future.

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Work Description: Faucets/Fixtures/Pipes Repair/Replace

Comments: Evyn could not have been anymore professional and it was a pleasure to have him work for us Glenn Miller

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Work Description: Faucets/Fixtures/Pipes Repair/Replace

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Work Description: Boiler Install/Replace

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Work Description: Water Heater - Install/Replace

Comments: Excellent service, he really knew what he was doing.

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Work Description: Switches/Outlets/Fixtures - Repair

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Work Description: Water Heater - Repair/Service

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Work Description: Plumbing - for Business

Comments: could not complete the job !! Had to hire someone else.

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Work Description: Plumbing

Comments: Mike did a fantastic job replacing my toilet….thank you!

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Work Description: Switches/Outlets/Fixtures - Install

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Work Description: Faucets/Fixtures/Pipes Repair/Replace

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Work Description: Plumbing

Comments: ARRIVED IN TIMELY MANOR, THOROUGH EXPLANATIONS

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Work Description: Switches/Outlets/Fixtures - Install

Comments: Couldn’t have been better. Friendly, professional, informative technician who vacuumed up when finished, I think that’s a 10!!!!!

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Work Description: Faucets/Fixtures/Pipes Repair/Replace

Comments: Plumber excellent work. Their fixed pricing is horrible. I feel I paid twice to the toilet installation.

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Work Description: Switches/Outlets/Fixtures - Repair

Comments: They came and repaired my 220 electric
Socket. Very pleased

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Work Description: Faucets/Fixtures/Pipes Repair/Replace

Comments: It was great had a issue with my bathroom causing a high whistling noise when taking a shower. One of the plumbers at cornerstone came took out the old bathroom spout and installed a new one at a decent price.

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Work Description: Powerwashing Exterior

Comments: Very friendly and did a very good job!

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Work Description: Electrical Wiring/Rewiring

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Work Description: Furnace/Heating System - Repair/Service

Comments: my furnace was check out clean and runs like a charm, highly recommend conerstone

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Work Description: Furnace/Heating System - Repair/Service

Comments: THUMBS UP TO THE FOLKS FOR BEING COURTEOUS , PROFESSIONAL AND KLNOWLEDGEABLE

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Work Description: Generator - Install

Comments: Very knolegeble of his product,Could of tried to sell me something i didnt need but went through my entire home telling me what i really NEEDED.In my mind "bigger is better But he went over everyting I needed! Most of all he convinced me to go with a Brigs and Straton I can,t wait till INSTALATION DAY!!!!!!!! THANK YOU!!

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Work Description: Switches/Outlets/Fixtures - Install

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Work Description: Door Repair

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Work Description: Faucets/Fixtures/Pipes Repair/Replace

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Work Description: Faucets/Fixtures/Pipes Repair/Replace

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Work Description: Attic/Whole House Fan Install

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Work Description: Central A/C - Repair/Service

Comments: THANKS FOR THE GOOD JOB.

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Work Description: Faucets/Fixtures/Pipes Repair/Replace

Comments: Excellent Mike was great!! I would get them again

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Work Description: Gas Piping

Comments: Came over and installed gas line and did a good job

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Work Description: Electrical Wiring/Rewiring

Comments: Jason and Julia were prompt, professional and proficient! We were very pleased with them and plan to hire them again when electrical services are needed.

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Work Description: Water Heater - Repair/Service

Comments: He was on time and provided me several options to service my water tank. They had however told him it was a furnace instead of a hot water tank. He was polite, quick, and informative.

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Work Description: Switches/Outlets/Fixtures - Repair

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Work Description: Water Heater - Repair/Service

Comments: Awesome service. Matt arrived earlier than scheduled time. Was very knowledgeable, and courteous. Highly recommend this company!!!!

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Work Description: Switches/Outlets/Fixtures - Repair

Overall

Work Description: Switches/Outlets/Fixtures - Repair

Comments: The two technicians that showed up as extremely professional courteous and exceptional job would recommend them to anyone great job Reasonably priced thank you

Overall

Work Description: Handyman

Comments: Alls well . Octavio’s was terrific. All that was promised was delivered.

Overall

Work Description: Faucets/Fixtures/Pipes Repair/Replace

Comments: On time. Courteous. Hard working.
Very good employee. An asset to your company. I’ve booked another project this week with Cornerstone and didn’t solicit another bid

Overall

Work Description: Handyman

Comments: Very efficient. Paul gave me a good quote and finished the job in a timely manner. I will definitely use him again and spread the word.

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Work Description: Switches/Outlets/Fixtures - Repair

Comments: I was very pleased. He was here and than he was gone.

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Work Description: Faucets/Fixtures/Pipes Repair/Replace

Comments: Great character, excellent work effort, and very knowlegeable

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Work Description: Switches/Outlets/Fixtures - Install

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Work Description: Handyman

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Work Description: Sewer Main - Clear

Comments: awesome people, caring, helpful and kind. Would hiighly recommend them to anyone!!!!!!!

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Work Description: Clean

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Quality

Price

Punctuality

Work Description: Handyman: Re-grouting tiles/floor/ silicone around bathtub

Comments: This review is for the handyman section of the company:
Tiles were damages when the handyman used an electrical tool to cut out grout, dust was all over the apartment and the fire alarm was set off, the fixtures were not take off and it was grouted around the towel holder and mirror, grouting itself is not satisfactory and appears below standard. After the initial work appeared not standard I had a conversation with the owner and supervisor and I was told that the work would be done in an acceptable manner. The pictures I took every day and after do not show handyman work that I would consider ‘standard”. My concerns about workman ship were downplayed by the initial worker. Excuse for cutting into the tiles was “there was so much dust I could not see well” and “I did not have the tools “ for not taking off the fixtures after I pointed this out. The project was estimated for 2 days but lasted several days longer with an end-result that is poor in my opinion given hat I hired a professional handyman.

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Quality

Price

Punctuality

Work Description: Faucets/Fixtures/Pipes Repair/Replace

Comments: I had 2 faucets that were rotting out and leaking. Paul arrived on time and assessed the situation and costed out replacements. I opted for a more expensive faucet on both and agreed to their price.
Paul and Pete arrived the next day on time and I now have 2 new faucet that don't leak.
I will use Cornerstone Services in the future for additional work both inside and outside the house.

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Quality

Price

Punctuality

Work Description: Leak Detection/Repair

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Quality

Price

Punctuality

Work Description: Water Heater - Install/Replace

Comments: Very professional, prompt, reasonably priced

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Quality

Price

Punctuality

Work Description: Cleaned vertical blinds

Comments: Excellent work. Answered this survey before for you
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  • MA Electrical License in MA :
    #16477A
    Master Electrical License in NH :
    #10762M
    MA Plumber License in MA :
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    HVAC License in NH :
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  • 1 Year Guarantee
    24/7 Emergency Service
    Family-owned & Operated
    Financing Options
    Flat Rate Pricing
    Locally-owned & Operated
    Maintaining Distance
    Military Discount Available
    No-contact Payments
    Protective Gear Used
    Workmanship Guarantee