Top-rated water heater installers and replacers.

Get matched with top water heater installers and replacers in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Water heater installers and replacers in Key West

Avatar for Keys Plumbing, LLC
Keys Plumbing, LLC
422 Fleming Street
5.00(
1
)
Approved Pro
Keys Plumbing, LLC
422 Fleming Street
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

Family Owned Operated. 5 years of experience. We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate! facebook

"Jacob was quick & courteous to respond to our need. Problem resolved. We recommend Keys Plumbing. Would definitely use again."

David K on April 2021

Family Owned Operated. 5 years of experience. We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate! facebook

"Jacob was quick & courteous to respond to our need. Problem resolved. We recommend Keys Plumbing. Would definitely use again."

David K on April 2021


Ernest Liz Plumbing
3711 Pearlman Ct
New on HomeAdvisorNew on Angi
Approved Pro
Ernest Liz Plumbing
3711 Pearlman Ct
New on AngiNew on HomeAdvisor
Approved Pro
20 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s 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.

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s 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.


Avatar for Florida Keys Plumbing Corp
Florida Keys Plumbing Corp
25052 Palm Lane
4.83(
18
)
Approved Pro
Florida Keys Plumbing Corp
25052 Palm Lane
4.83(
18
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

We are a locally owned and operated company that values honesty, integrity, and treats your home as if it were our own. We offer plumbing and irrigation services that are Customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction! We have 24 hour emergency service.

"Very reliable and did a good job"

Valerie D on October 2022

We are a locally owned and operated company that values honesty, integrity, and treats your home as if it were our own. We offer plumbing and irrigation services that are Customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction! We have 24 hour emergency service.

"Very reliable and did a good job"

Valerie D on October 2022


Gary the Carpenter Construction, Inc.
800 Simonton Street
New on HomeAdvisorNew on Angi
Approved Pro
Gary the Carpenter Construction, Inc.
800 Simonton Street
New on AngiNew on HomeAdvisor
Approved Pro
121 local quotes requested
5 years of experience

Looking for expert carpentry and woodworking services in Florida? Look no further than Gary the Carpenter Construction, Inc. Our skilled team sets us apart from the competition, delivering top-notch craftsmanship and attention to detail. Contact us today for all your home project needs!

Looking for expert carpentry and woodworking services in Florida? Look no further than Gary the Carpenter Construction, Inc. Our skilled team sets us apart from the competition, delivering top-notch craftsmanship and attention to detail. Contact us today for all your home project needs!


Avatar for Full Circle Management
Full Circle Management
23041 Southwest 107th Avenue
5.00(
9
)
Approved Pro
Full Circle Management
23041 Southwest 107th Avenue
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

Our expert staff have decades of real world plumbing very reliable and very price friendly

"Jose is AWESOME. He resolved the issue right away. I will definitely hire him again!!! Great prices too!!!"

Arlene R on July 2024

Our expert staff have decades of real world plumbing very reliable and very price friendly

"Jose is AWESOME. He resolved the issue right away. I will definitely hire him again!!! Great prices too!!!"

Arlene R on July 2024


Avatar for AMVA Construction LLC
AMVA Construction LLC
15540 Southwest 127th Avenue
5.00(
4
)
Approved Pro
AMVA Construction LLC
15540 Southwest 127th Avenue
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1606 local quotes requested

**Due to our current schedule our projects have a minimum invoice of $1000** When you make the decision to call AMVA CONSTRUCTION for your Home Remodeling, you are choosing the right company for your project. We provide our services from Key West to the Orlando. We provide service options for any sized job that you may have a need at an affordable price and honesty. Please contact us for a free quote. Give us a call and let us know what you want well take care of the rest!

"Excellent, clean,very helpful getting me what I wanted."

Bonnie L on December 2023

**Due to our current schedule our projects have a minimum invoice of $1000** When you make the decision to call AMVA CONSTRUCTION for your Home Remodeling, you are choosing the right company for your project. We provide our services from Key West to the Orlando. We provide service options for any sized job that you may have a need at an affordable price and honesty. Please contact us for a free quote. Give us a call and let us know what you want well take care of the rest!

"Excellent, clean,very helpful getting me what I wanted."

Bonnie L on December 2023


Avatar for Golden Temple Builders Inc
Golden Temple Builders Inc
5.00(
8
)
Approved Pro
Golden Temple Builders Inc
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7052 local quotes requested

We are custom home builders for single-family homes, multi-family, modular and backyard ADU's building in Florida, Texas, California and the Caribbean. Building new homes from a 200 sqft ADU to a 15,000 sq ft custom home and beyond

"Nick and his team were amazing they spent the time with all the little details. All the work was above standards. I highly recommend them for services"

Brian A on May 2025

We are custom home builders for single-family homes, multi-family, modular and backyard ADU's building in Florida, Texas, California and the Caribbean. Building new homes from a 200 sqft ADU to a 15,000 sq ft custom home and beyond

"Nick and his team were amazing they spent the time with all the little details. All the work was above standards. I highly recommend them for services"

Brian A on May 2025


Avatar for Neli Virtual Appliance Repair
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Customers say: Super punctual
61370 local quotes requested
9 years of experience

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"They did fine"

Keavon R on May 2025

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"They did fine"

Keavon R on May 2025


LynnLee Construction Group
3139 Scotty Dr.
No reviews
LynnLee Construction Group
3139 Scotty Dr.
No reviews
20 years of experience

Licensed trade professionals that Design, Build Custom, Historical Renovations, Remodel, Repairs Residential & Commercial Construction, New Construction, Commercial Build-out, Restaurants Building Yesterday's Dreams and Tomorrow's Memories

Licensed trade professionals that Design, Build Custom, Historical Renovations, Remodel, Repairs Residential & Commercial Construction, New Construction, Commercial Build-out, Restaurants Building Yesterday's Dreams and Tomorrow's Memories


Dave Hilton General Contractor
27 Marlin Ave
5.00(
2
)
Dave Hilton General Contractor
27 Marlin Ave
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

hello, my bussiness is available for all types of remodeling, residential and commericial. we specilize in whole home reconstruction and remodeling.

hello, my bussiness is available for all types of remodeling, residential and commericial. we specilize in whole home reconstruction and remodeling.

...
Showing 1-10 of 297

FAQs for water heater installation and replacement projects in Key West, FL

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.

The Key West, FL homeowners’ guide to water heater installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
Plumber repairing water heater in the bathroom
Jun 25, 2025
Jun 25, 2025
Budget for water heater flush costs based on factors such as water heater size and type, the plumber’s experience level, related services, and more.
trench being dug to repair sewer main in backyard
Jun 21, 2025
Jun 21, 2025
Use this guide to budget for sewer line replacement costs based on factors such as location, trenching, materials, repairs, landscaping, and more.
newly remodeled bathroom with new bath tub
Jun 21, 2025
Jun 21, 2025
Budget for bathtub replacement costs based on factors such as bathtub type, material, removal, hardware, labor, plumbing work, and more.
A man installs a new shower
Jun 15, 2025
Jun 15, 2025
Looking to remodel your shower? Here’s how much it costs, what factors affect cost, and what to expect.
plumber cleaning a home sewer line in yard
Jun 15, 2025
Jun 15, 2025
Budget for main sewer line clog repair costs based on factors such as cleaning method, sewer age, project complexity, permits, labor, and more.
master bathroom shower wall being regrouted
Apr 21, 2025
Apr 21, 2025
Use this guide to estimate the cost to regrout a shower based on the type of grout, tile size, and more.
Share project details to get started.