GSMS Air•Heating•Plumbing is a family-owned and operated business in Manchester, NH, established in 1987. The company is committed to providing exceptional installation, maintenance, and repair services for heating, cooling, and plumbing needs, ensuring optimal comfort and efficiency in homes. Their highly trained technicians offer personalized solutions to cater to each client's specific requirements, keeping living spaces at their best. Customers consistently praise the company's exceptional service. Reviewers describe the technicians as experienced, knowledgeable, helpful, and very professional. GSMS is known as a "well-oiled machine" with a "high standard customer service attitude" that goes beyond just a logo on their vans. The company listens to customers, acknowledges their needs, and provides honest and intelligent answers, earning the trust and satisfaction of homeowners. GSMS has a reputation for delivering quality work and going the extra mile to ensure customer satisfaction. Clients have appreciated the company's responsiveness, reliability, and attention to detail, from the initial consultation to the completed project. Whether it's a new HVAC system installation or a routine maintenance visit, GSMS consistently exceeds expectations and is highly recommended by its satisfied customers.
Our plumber Jack was great, very professional and polite. I would recommend him and GSMS to anyone! Thank you for your quick response to our leaking water heater. Merry Christmas.
December 2025
We've been relying on GSMS for years and they are absolutely superb in all respects!
September 2024
Everyone is great at GSMS Jack is the best and fixed our plumbing problem quite fast
