Jun 2026
Great service! Jason and his son accommodated us and fit us into their schedule for dryer vent cleaning. They were friendly, prompt, and very efficient. I would highly recommend them!
About Cornerstone IAQ Services LLC
Cornerstone IAQ Services LLC is a business that prioritizes integrity and passion in their work of cleaning dryer vents, air ducts, and providing mold remediation. Customers consistently praise their professionalism, high-quality services, and expertise. Recent reviews highlight the team's punctuality, thoroughness, and clear communication. Jason and Chris, in particular, impressed clients with their attention to detail, showing before and after pictures of the duct cleaning, offering helpful suggestions to reduce future buildup, and providing upfront pricing that is very reasonable. Whether for small or extensive projects, the team is known for being efficient and trustworthy, ensuring homes are in better condition after their work. Overall, Cornerstone IAQ Services LLC is highly recommended for their dedication to customer service and improving indoor air quality, especially for homes with pets or allergies.
Reviews
May 2026
The Cornerstone team did an outstanding job cleaning and treating my basement after water damage. They are consummate professionals who approached the work with thoroughness and care, delivering a comprehensive solution. From the outset, they understood the urgency of the situation, were highly accommodating in scheduling, and completed both the initial and follow-up work promptly. They also coordinated closely with the inspector to ensure everything met the required standards. I highly recommend the Cornerstone team for any environmental remediation work, great value for the price, you’ll be in excellent hands.
Apr 2026
Jason & Chris were fantastic. Very professional, efficient, & polite. Air Ducts were overdue to be cleaned, saw pictures throughout the process. Very impressed and pleased, HIGHLY recommend.
Photos
Hours
Monday 8AM - 5PM
Tuesday 8AM - 5PM
Wednesday 8AM - 5PM
Thursday 8AM - 5PM
Friday 8AM - 5PM
Saturday Closed
Sunday Closed
Good to know
- accepts credit cards
Location
1 Corporate Park Dr UNIT 14, Derry, NH 03038
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