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Water heater installers and replacers in Dennis
At Harbor Master Plumbing & Heating, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.
"They installed a new shower valve in my house in Centerville. They did a great job with short notice at a affordable price. 5Star+ for Harbor Masters Plumbing"
Carl F on July 2022
At Harbor Master Plumbing & Heating, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.
"They installed a new shower valve in my house in Centerville. They did a great job with short notice at a affordable price. 5Star+ for Harbor Masters Plumbing"
Carl F on July 2022
We take great pride in our experience, expertise, quality, and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Over 30 years of experience in the mechanical industry.
"I used Northcoast to install outdoor shower plumbing. See in pictures below. Great Job. It was my 2nd time using this company. The first time Robert fixed my heat for me in the winter. Another company in cape cod tried to charge me 10 times more than he’s did. Robert is honest and gets the job done. I would use him hands down."
Patrick K on June 2025
We take great pride in our experience, expertise, quality, and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Over 30 years of experience in the mechanical industry.
"I used Northcoast to install outdoor shower plumbing. See in pictures below. Great Job. It was my 2nd time using this company. The first time Robert fixed my heat for me in the winter. Another company in cape cod tried to charge me 10 times more than he’s did. Robert is honest and gets the job done. I would use him hands down."
Patrick K on June 2025
At Steve Ricci & Sons plumbing and heating we pride our company on reliability, great communication, integrity and quality work.from the small repairs to the larger jobs we are there for our customers
"Great company to work with, highly recommended. Steve was easy to work with, communication and attention to details was the biggest highlight. He did a complete rough and finish plumbing for us including water heater installation"
Jose T on April 2025
At Steve Ricci & Sons plumbing and heating we pride our company on reliability, great communication, integrity and quality work.from the small repairs to the larger jobs we are there for our customers
"Great company to work with, highly recommended. Steve was easy to work with, communication and attention to details was the biggest highlight. He did a complete rough and finish plumbing for us including water heater installation"
Jose T on April 2025
Tatra Building Company provides general construction services for Cape Cod and South Shore area. We are committed to excellence, offering years of experience and fast, friendly service. Bridging design, construction and mechanical services, we deliver the best product, value and price. Shop around and then give us the call last, you will be glad you did. From a simple task like new electrical service, water heater or bathroom remodeling, to a new home or business property design and construction. Really..... Superior quality, attention, best price, forever relationship
"These people are HIGHLY professional and do the work RIGHT AWAY! Very reasonable prices! Would hire again!"
Barbara T on December 2024
Tatra Building Company provides general construction services for Cape Cod and South Shore area. We are committed to excellence, offering years of experience and fast, friendly service. Bridging design, construction and mechanical services, we deliver the best product, value and price. Shop around and then give us the call last, you will be glad you did. From a simple task like new electrical service, water heater or bathroom remodeling, to a new home or business property design and construction. Really..... Superior quality, attention, best price, forever relationship
"These people are HIGHLY professional and do the work RIGHT AWAY! Very reasonable prices! Would hire again!"
Barbara T on December 2024
We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!
"Excellent! We had a very good experience with SeaBreeze Home Construction. Amanda and Mitchel are so easy to work with and genuinely nice people. Amanda is incredibly organized and efficient - especially arranging subcontractors, ordering materials, etc. Great attention to detail. Mitchel is a very meticulous craftsman and a perfectionist. The project went smoothly with just a few delays due to supply chain issues - beyond anyone's control. All in all it was a great experience and we highly recommend them!"
Susan M on February 2025
We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!
"Excellent! We had a very good experience with SeaBreeze Home Construction. Amanda and Mitchel are so easy to work with and genuinely nice people. Amanda is incredibly organized and efficient - especially arranging subcontractors, ordering materials, etc. Great attention to detail. Mitchel is a very meticulous craftsman and a perfectionist. The project went smoothly with just a few delays due to supply chain issues - beyond anyone's control. All in all it was a great experience and we highly recommend them!"
Susan M on February 2025
Anchor Building & Designs is a fully licensed and insured Construction company. We are proud to be the Top 1% Massachusetts licensed contractors according to BuildZoom rank. Our company has over 25 years of combined experience on the Cape providing to all costumers the best experience as possible. Our team is totally prepared for any type of construction, from small to high end custom homes. We are proud of our reputation and will be more than happy to connect our new costumers to previous happy costumers. Feel free to contact us anytime for a free consultation.
"Great work start to finish"
Michael S on October 2024
Anchor Building & Designs is a fully licensed and insured Construction company. We are proud to be the Top 1% Massachusetts licensed contractors according to BuildZoom rank. Our company has over 25 years of combined experience on the Cape providing to all costumers the best experience as possible. Our team is totally prepared for any type of construction, from small to high end custom homes. We are proud of our reputation and will be more than happy to connect our new costumers to previous happy costumers. Feel free to contact us anytime for a free consultation.
"Great work start to finish"
Michael S on October 2024
With over 20 years of carpentry experience, Johnson Home Building LLC strives themselves on customer satisfaction, professionalism and quality craftsmanship. The owner, Timothy Johnson shares his father and grandfathers' passion for construction and helping others achieve the home of their dreams through remodeling projects. Call Johnson Home Building LLC for any of your renovation needs today!
"Tim built us the deck of our dreams. He did a fantastic job. We are high maintenance and he answered all of our questions throughout. Very responsive. Highly recommended."
Jeffrey V on April 2023
With over 20 years of carpentry experience, Johnson Home Building LLC strives themselves on customer satisfaction, professionalism and quality craftsmanship. The owner, Timothy Johnson shares his father and grandfathers' passion for construction and helping others achieve the home of their dreams through remodeling projects. Call Johnson Home Building LLC for any of your renovation needs today!
"Tim built us the deck of our dreams. He did a fantastic job. We are high maintenance and he answered all of our questions throughout. Very responsive. Highly recommended."
Jeffrey V on April 2023
We offer elegant and practical building and remodeling solutions for your Cape Cod home, tailored to your taste and needs. IHS is a fully licensed/insured, family-owned company, with over 20 years of experience in all phases of residential construction. We focus on building lasting professional relationships with our customers, and becoming their trusted go-to contractor for all of their home improvement needs.
"We recently had an “old school” original 1970’s Cape Cod kitchen fully remodeled including adding a slider. Richard did a great job from planning and design (shout out to Hanna on this), to demo, to install, to finish work. Richard was on time, reliable, and not your typical Cape contractor. Super clean at all times and was able to work with us on various hiccups/unexpected stuff along the way. He explained options and the pros and cons of each possible choice. He never upcharged us (unless we asked for something) and was exactly on budget. Very happy with his work and would definitely recommend. We will likely call on him again for our next project."
Kevin H on January 2025
We offer elegant and practical building and remodeling solutions for your Cape Cod home, tailored to your taste and needs. IHS is a fully licensed/insured, family-owned company, with over 20 years of experience in all phases of residential construction. We focus on building lasting professional relationships with our customers, and becoming their trusted go-to contractor for all of their home improvement needs.
"We recently had an “old school” original 1970’s Cape Cod kitchen fully remodeled including adding a slider. Richard did a great job from planning and design (shout out to Hanna on this), to demo, to install, to finish work. Richard was on time, reliable, and not your typical Cape contractor. Super clean at all times and was able to work with us on various hiccups/unexpected stuff along the way. He explained options and the pros and cons of each possible choice. He never upcharged us (unless we asked for something) and was exactly on budget. Very happy with his work and would definitely recommend. We will likely call on him again for our next project."
Kevin H on January 2025
With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Ayden was very kind and insightful. I was happy to meet an incredible worker like that from Long Home."
Alayna L on April 2025
With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Ayden was very kind and insightful. I was happy to meet an incredible worker like that from Long Home."
Alayna L on April 2025
Welcome to Castro finish carpentry! We have over 12 years of experience on all: *Remodeling (Interior and Exterior) *Decks *Additions framing *Siding *Roofing *Windows *Doors And so much more!! Castro Finish Carpentry is a full insured company located at Cape Cod, on the field over 12 years. Our crew is formed by high capacity craftsman to guarantee a impeccable job, beyond competence and dedication, we preserve transparency to our costumers!! Feel free to give us a call and email for any question!
"The project went very well. From the initial assessment through unexpected issues to completion, the process was smooth and the work was professional and well done. Steve was very responsive and helpful throughout."
Robert G on May 2025
Welcome to Castro finish carpentry! We have over 12 years of experience on all: *Remodeling (Interior and Exterior) *Decks *Additions framing *Siding *Roofing *Windows *Doors And so much more!! Castro Finish Carpentry is a full insured company located at Cape Cod, on the field over 12 years. Our crew is formed by high capacity craftsman to guarantee a impeccable job, beyond competence and dedication, we preserve transparency to our costumers!! Feel free to give us a call and email for any question!
"The project went very well. From the initial assessment through unexpected issues to completion, the process was smooth and the work was professional and well done. Steve was very responsive and helpful throughout."
Robert G on May 2025
FAQs for water heater installation and replacement projects in Dennis, MA
You'll need an expansion tank if your home has a closed water system, which is standard in newer homes or those with backflow preventers or pressure regulators. Expanding hot water has nowhere to go in closed systems, creating potentially damaging pressure. The expansion tank provides space for this expanded water, protecting your plumbing system and water heater from premature failure. Many local building codes now require expansion tanks, and some water heater warranties may be voided without one.
For a standard 50-gallon water heater, a two-gallon expansion tank is sufficient. This sizing assumes normal household water pressure between 40 and 60 psi. If your home has higher water pressure (60 to 80 psi), consider upgrading to a slightly larger tank for added protection. The expansion tank's purpose is to accommodate the increased volume that occurs when cold water heats up, which is proportional to your water heater's capacity.
Watch for signs like dripping water around the tank, fluctuating water pressure throughout your home, or unusual noises in your plumbing system. A properly functioning expansion tank should feel light when tapped on the bottom—if it feels heavy or waterlogged, the internal bladder has likely failed. Other indicators include frequent triggering of your temperature and pressure relief valve, visible corrosion on the tank, or unexplained increases in your water bill, suggesting hidden leaks.
Most expansion tanks have a service life of five to 10 years, though some may last up to 12 years or more with proper maintenance. Factors affecting lifespan include water quality, system pressure, installation quality, and tank construction. Hard water areas often see shorter lifespans due to mineral buildup. Regular maintenance checks can help identify potential issues before complete failure. When your water heater is due for replacement, it's wise to replace the expansion tank simultaneously, even if it hasn't failed yet.
A 30-gallon water heater needs an expansion tank if your home has a closed plumbing system. The need for an expansion tank is determined by your plumbing system type rather than water heater size. Even smaller water heaters create thermal expansion when heating water. If your home has a backflow preventer, pressure regulator, or check valve on the main water line, you have a closed system that requires an expansion tank. Check your local plumbing codes, as many jurisdictions now mandate expansion tanks regardless of water heater size.
- Plumbing - Multiple Projects
- Shower Pan Install
- Plumbing for a Remodel or Addition - Install
- Plumbing Item Repair
- Water Heater - Repair or Service
- Sink Repair
- Steam Shower - Install
- Faucet Install or Replace
- Walk In Tub - Install or Replace
- Drain Repair
- Shower Install or Replace
- Pipe Repair
- Drain Line Breakage - Camera Locate
- Tankless Water Heater - Install
- Water Main - Install, Replace or Repair
- Sump Pump - Repair or Replace
- Drain Clog or Blockage - Clear
- Sewer Main - Clear
- Faucets, Fixtures and Pipes - Repair or Replace
- Plumbing Item Installation
- Sink Installation
- Pipe Installation
- Faucet Installation
- Gas Piping
- Whirlpool Bathtub Install or Replace
- Plumbing Multi-Item Installation
- Sewer Main - Install, Replace or Repair
- Drain Installation
- Plumbing Multi-item Repair
- Toilet Installation
- Bathtub Install or Replace
- Sump Pump or Interior Foundation Drains - Install
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