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Learn about our screening process99% Recommended
11 Years In Business
Company Details
Hours
- Mon: 8:00 AM - 5:00 PM
- Tue: 8:00 AM - 5:00 PM
- Wed: 8:00 AM - 5:00 PM
- Thu: 8:00 AM - 5:00 PM
- Fri: 8:00 AM - 5:00 PM
- Sat: 8:00 AM - 5:00 PM
- Sun: 8:00 AM - 5:00 PM
View All Details & Credentials
Achievements
Service Details
Areas of Expertise
- Dryer Vent Cleaning
- Air Duct and Vent Cleaning
- Duct repair and replacement
- Carpet cleaning and upholstery
View All Offerings and Cities Served
Cost Information
- Trip Charge May Apply
- Credit Cards Accepted
Reviews
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Showing 11-20 of 67 results
5.0
Kim M.
Hollis, NH
5/21/2019
Professional, Communicative, Respectful and just all around a pleasure to do business with. They went above and beyond for a first time home buyer. I highly recommend their services!
5.0
Danielle G.
Manchester, NH
5/13/2019
They are knowledgeable, professional and prompt. I was very happy with their services.
5.0
Jeffrey K.
Merrimack, NH
4/9/2019
Micheal and Jason were extremely professional, detail oriented and take pride in their work. I can t wait to see the before and after photos.
5.0
Michael D.
Derry, NH
3/26/2019
They did an excellent job. Showed me before and after pictures of the ducts and vents. They have a great cleaning process.
5.0
James H.
Gloucester, MA
3/20/2019
These folks are very honest, competent, and have great integrity!
5.0
Darren E.
Dover, NH
3/5/2019
I'll start by saying that I have severe allergies. and respiratory issues Jason and Mike were not only NADCA certified, but friendly, knowledgeable, punctual, and most importantly... honest. I had spoken to others that said they would "fix" it", but Cornerstone came, evaluated my system and, rather than charge me unnecessarily, they provided me with other options that they did not even offer. That's service!!! I look forward to scheduling them when my system is actually DUE for a cleaning. Thanks gentlemen!
5.0
David S.
Merrimack, NH
2/7/2019
They explained there pricing policy, no hidden extras. Arrived right on time, highly recommend.
5.0
Oriana A.
North Hampton, NH
12/5/2018
Jason and his partner were friendly, knowledgeable, prompt and professional. It was a pleasure to have them do the duct cleaning and we will have them back every few years as needed.
5.0
Kathy B.
Bend, OR
12/3/2018
The service I received from Cornerstone was nothing short of amazing. They went above and beyond in servicing my air ducts. I will be recommending cornerstone to all my neighbors. All companies should be this conscientious and efficient.
5.0
George A.
Atkinson, NH
11/16/2018
Owner operator Mike and his partner are outstanding. Did all my Heating and AC Vents and Main Lines also my Dryer Vent. I highly recommend them and would hire them again for any future needs. Mike is also a Veteran
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