Plumbing Services
Unmatched Expertise. Every Job. Large or Small.

Your trusted partner for all plumbing needs, from small repairs to major installations.
Whether it’s replacing a water heater, updating appliances in historic homes, or installing custom boiler systems, we deliver fast, reliable results that stand the test of time.
Licensed for both natural gas and propane equipment, we handle everything with the same care we would in our own homes.
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Plumbing System Diagnosis
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Leak Repair
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Appliance & Plumbing Feature Replacement
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Scheduled System Service & Maintenance
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Heating & Gas Fittering Services
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And More!
Plumbing Installations
When it’s time to upgrade to a high-efficiency water heating system, our team of licensed plumbers gets in and out in days, not weeks. We get the job done quickly and correctly without interrupting your everyday life.
We're also certified Navien technicians who can help you maximize an on-demand water system for your home while assisting you with your Mass Save rebate.
Need an emergency replacement? We have you covered with instant financing for our Navien products for qualified customers and on-demand water heating systems to ensure your plumbing installations never leave you high and dry while you save space and money.
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Boiler Installation & Replacement
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Hydronic Heating Installations
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Plumbing Appliance & Feature Installations
Remodels & New Construction
Whether you’re remodeling or building new, Keith Brothers Plumbing provides top-rated services across the South Shore and Cape Cod.
From luxurious bathrooms with rainfall showerheads to complete new constructions, we work with your team or trusted local tradesmen to bring your vision to life.
Our fast, reliable service ensures your project meets both your aesthetic and performance needs, with free estimates from Plymouth to Harwich.
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New Plumbing Constructions
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Plumbing System Remodeling
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Updating Historic Plumbing & Properties to Code
100% Customer Satisfaction Guarantee