water softener system Barrington, NH

When Barrington, NH winters hit, you need a heating system you can count on. GSMS provides complete heating services, from furnace installation and repair to boiler service and high-efficiency heat pumps. Our NATE-certified technicians specialize in all major brands, including Lennox and Energy Kinetics boilers. Whether your furnace is blowing cold air or your boiler is making strange noises, we diagnose the problem quickly and offer honest, upfront solutions.

We understand that a heating emergency can't wait. That's why we offer priority service for Club Members and fast response times for all clients. Our process starts with a thorough inspection of your system, followed by a clear explanation of your options—repair or replacement. If a new system is best, we help you navigate financing options and Lennox rebates up to $1,800. With our meticulous installation standards, you'll enjoy even heat, lower energy bills, and peace of mind. Choose GSMS for heating services that keep you cozy without breaking the bank.

Beat the Barrington, NH humidity and heat with professional cooling services from GSMS. We handle everything from emergency AC repair and routine maintenance to complete air conditioner installation. Our team is factory-trained in ducted central AC, ductless mini-split heat pumps (including Mitsubishi Diamond Contractor standards), and hybrid systems. If your AC is struggling to keep up, short-cycling, or making unusual sounds, we'll find the root cause and fix it right the first time.

We also specialize in Mitsubishi mini-split systems—perfect for homes without existing ductwork or for adding zoned comfort to additions and garages. Our installation process is clean, efficient, and focused on long-term performance. We'll help you choose the right SEER rating for your budget and comfort goals. Plus, with our 0% interest financing options and available rebates, upgrading your cooling system is more affordable than ever. Breathe easy knowing your home will stay cool and comfortable all summer long.

From dripping faucets to burst pipes, GSMS is your trusted plumber in Barrington, NH. Our licensed plumbers handle residential and light commercial plumbing needs, including water heater replacement and repair, tankless water heater installation, kitchen and bathroom plumbing, and comprehensive water quality services. We don't just patch leaks; we find the underlying cause to prevent future problems.

One of our most popular offerings is water quality improvement. Barrington, NH homes can benefit from our reverse osmosis systems, whole-home water filtration, sediment filtration, and water softener systems. Hard water damages appliances and dries out skin—we provide customized solutions to protect your home and family. Our transparent pricing means no overtime charges or surprise trip fees. Whether you need a simple toilet repair or a complete repipe, we show up on time, work cleanly, and guarantee your satisfaction. Experience the GSMS difference—plumbing done right, backed by decades of local experience.