Running out of hot water during a shower is a thing of the past with modern, energy-efficient tankless water heaters in Sudbury, MA. Instead of storing water in a large tank, these systems heat water on demand — providing endless hot water while saving energy and space. For professional installation, repair, and maintenance, homeowners trust Lavallee Systems.
With more than 30 years of plumbing experience, our licensed technicians specialize in both gas and electric tankless systems. We help you select the right model, ensure precise installation, and keep your system running efficiently year after year. Call (888) 884-4122 today to schedule your service.
Tankless systems are one of the most efficient ways to supply hot water for your home. They’re compact, long-lasting, and deliver immediate performance improvements.
Advantages include:
Whether you’re upgrading from a traditional water heater or installing a system for a new home, Lavallee Systems provides the expertise you need for a seamless installation.

Proper installation is key to the performance and longevity of your new unit. At Lavallee Systems, we follow manufacturer specifications and local codes to ensure safe, efficient operation.
Our installation process includes:
We install all major brands of tankless water heaters in Sudbury, MA and can help you choose between gas or electric systems for maximum efficiency.
Even the most advanced systems require occasional service to stay efficient. Our experienced plumbers are trained to diagnose and repair all makes and models of tankless water heaters.
We handle:
For long-term performance, we recommend annual maintenance, including descaling and flushing, to prevent buildup from hard water and extend your system’s lifespan.
Homeowners throughout Sudbury, MA trust Lavallee Systems for quality workmanship and dependable plumbing service. As a locally owned and operated company, we’re committed to delivering excellence on every job.
What sets us apart:
We treat every home as if it were our own — providing clean, precise, and lasting work on every visit.
If you’re ready to upgrade to a more efficient hot water system, trust Lavallee Systems for professional tankless water heater service in Sudbury, MA. Our team delivers top-quality installation, maintenance, and repair you can count on.
Call (888) 884-4122 today to schedule your appointment or request a consultation.
Can a tankless water heater replace my traditional tank unit?
Yes. Most homes can be converted to a tankless system, and our technicians can determine the best setup for your space and fuel type.
How long does a tankless water heater last?
With proper maintenance, most units last up to 20 years — nearly twice as long as traditional water heaters.
Do tankless water heaters require annual maintenance?
They do. Regular flushing prevents mineral buildup and ensures optimal performance and efficiency.
Enjoy discounted pricing on our already affordable maintenance services.
Save on necessary repairs with a fixed discount.
Upgrade your system with an exclusive member discount.
Avoid the $300 fee if emergency service is ever required.
When you need service, you’ll be at the top of our list for the fastest possible response.