Rochester NH’s Trusted Local Plumbers
From frozen pipes in January to a water heater that won’t quit, Granite State Plumbing Co. connects Rochester homeowners with licensed, experienced local plumbers who know New Hampshire homes – from Gonic to East Rochester to the Lilac City’s historic downtown.
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Our Location
Serving Rochester, NH and surrounding Strafford County communities


Reliable Plumbing Solutions for Your Home
Why Rochester Homeowners Call Us
Rochester’s mix of older housing stock, private wells, and long New England winters means plumbing problems here look a little different than they do elsewhere:
- Frozen and burst pipes are a real winter risk in older Rochester homes with underinsulated crawlspaces and exterior walls
- Well pump issues matter here – a large share of Strafford County homes rely on private wells, not municipal water
- Aging plumbing systems in Rochester’s older neighborhoods (parts of downtown date back over a century) often need specialized know-how that newer-construction plumbers don’t have
- Hard water and mineral buildup are common across NH groundwater, affecting fixtures and water heaters over time
We connect you with plumbers who understand these local realities – not a national call center reading from a script.
Service highlights section
Emergency & Frozen Pipe Repair — Fast response when a pipe bursts or freezes
Water Heater Repair & Replacement — Tank and tankless systems
Drain & Sewer Cleaning — Clogs, backups, and sewer line issues
Well Pump Service — Diagnosis and repair for private well systems
Fixture Installation — Faucets, toilets, sinks, and more
Discover Our Services

Our Service Area:
Proudly serving Rochester, NH and nearby communities including Gonic, East Rochester, Salmon Falls, Milton, Farmington, and Barrington.

Our Business Hours
We are here to serve you with reliable plumbing services. Our team is available to assist you during the following hours, ensuring you receive prompt and professional care whenever you need it.
Monday
8:00 AM – 5:00 PM
Tuesday
8:00 AM – 5:00 PM
Wednesday
8:00 AM – 5:00 PM
Thursday
8:00 AM – 5:00 PM
Friday
8:00 AM – 5:00 PM
Saturday
Closed
Sunday
Closed
