When it comes to dependable and efficient hot water, gas systems remain a top choice for many homeowners. But like any appliance, they require professional installation, maintenance, and occasional repair to perform safely. For trusted service on gas water heaters in Sudbury, MA, homeowners turn to Lavallee Systems.
With more than three decades of plumbing expertise, our licensed and insured technicians handle every aspect of gas water heater care — from precision installations to troubleshooting and replacement. We ensure your system delivers consistent hot water while operating efficiently and safely. Call (888) 884-4122 today to schedule service.
Choosing the right water heater for your home makes a big difference in both comfort and energy use. At Lavallee Systems, we install high-efficiency gas models designed for reliable performance and lower operating costs.
Our installation services include:
Our team follows all Massachusetts plumbing and gas codes to ensure safe, code-compliant installations that stand the test of time.

If your water heater isn’t producing enough hot water, makes strange noises, or has a pilot light issue, it may need professional attention. Lavallee Systems provides prompt repairs and preventive maintenance to keep your system running at peak efficiency.
We service and repair:
Our maintenance services include annual inspections, tank flushing, and safety checks to extend your unit’s lifespan and reduce the risk of breakdowns.
For homeowners across Sudbury, MA, Lavallee Systems has become the go-to name for quality plumbing and heating services. We combine technical expertise with a commitment to customer satisfaction.
What makes us different:
We understand the importance of dependable hot water — and we make sure you have it when you need it.
If you’re considering an upgrade, there are many reasons homeowners continue to choose gas systems:
Our experts can help you determine the best model for your home based on size, efficiency, and performance needs.
If your water heater is struggling or you’re ready to upgrade to a new gas system, trust Lavallee Systems for expert service and reliable installation. We’re committed to providing top-quality workmanship and lasting solutions for every customer.
Call (888) 884-4122 to schedule your appointment today and experience the difference that true local expertise makes.
How long does a gas water heater last?
Most units last 8–12 years with proper maintenance. Regular flushing and inspections can help extend that lifespan.
Can you replace my electric water heater with a gas model?
Yes. We can convert your system safely if gas lines and venting are available or can be installed according to local codes.
Do gas water heaters require yearly maintenance?
Absolutely. Annual service ensures safe operation, removes sediment buildup, and keeps the system working efficiently.
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.