Pohlman Plumbing is a local, family-owned and -operated full-service plumbing and HVAC company serving the Baltimore metro area. Founded in 2008, our professional and friendly customer service plus our top-notch skills have made us one of the most trusted local plumbers in Baltimore. When you choose to work with Pohlman Plumbing, you can have peace of mind knowing we always stand by the Pohlman Promise: fast service, at a fair price, and done right the first time.
"The gentleman that work this business go above and beyond to make the best suggestions for they work required. This is the second time I have hired them. My sub pump went after and more rain was coming they came out with 2 hours to fix the problem. Extremely professional man. I will be er use any other plumbing business other than Pohlman. I highly recommend if you have a plumping issue."
Georgette T on January 2024
Pohlman Plumbing is a local, family-owned and -operated full-service plumbing and HVAC company serving the Baltimore metro area. Founded in 2008, our professional and friendly customer service plus our top-notch skills have made us one of the most trusted local plumbers in Baltimore. When you choose to work with Pohlman Plumbing, you can have peace of mind knowing we always stand by the Pohlman Promise: fast service, at a fair price, and done right the first time.
"The gentleman that work this business go above and beyond to make the best suggestions for they work required. This is the second time I have hired them. My sub pump went after and more rain was coming they came out with 2 hours to fix the problem. Extremely professional man. I will be er use any other plumbing business other than Pohlman. I highly recommend if you have a plumping issue."
Georgette T on January 2024
Constellation Home provides high-quality, personal service that you've depended on for decades. Constellation Home is Maryland's go-to home service provider your water heater installation needs. Our team will arrive on time, in uniform and ready to get the job done right the first time. All backed by our 100% satisfaction guarantee. We Know More, We Do More.
"nothing to add"
Rion S on May 2025
Constellation Home provides high-quality, personal service that you've depended on for decades. Constellation Home is Maryland's go-to home service provider your water heater installation needs. Our team will arrive on time, in uniform and ready to get the job done right the first time. All backed by our 100% satisfaction guarantee. We Know More, We Do More.
"nothing to add"
Rion S on May 2025
Hunt Plumbing, Heating and Air Conditioning, LLC prides its business on quality and outstanding customer service. Our team will prove we have what it takes to get the job done right the first time. ( Free estimates provided on replacement HVAC equipment only. Diagnostic fees charged when diagnosing equipment failures. Estimates for repairs will be quoted once diagnostic is completed. )
"Did a great job servicing and maintaining our water heater. Gave great advice. Will be using them in the future!"
Maura K on July 2025
Hunt Plumbing, Heating and Air Conditioning, LLC prides its business on quality and outstanding customer service. Our team will prove we have what it takes to get the job done right the first time. ( Free estimates provided on replacement HVAC equipment only. Diagnostic fees charged when diagnosing equipment failures. Estimates for repairs will be quoted once diagnostic is completed. )
"Did a great job servicing and maintaining our water heater. Gave great advice. Will be using them in the future!"
Maura K on July 2025
Dealing with a busted toilet? Can't seem to unclog that drain? It's time to call on your local Mr. Rooter® Plumbing. Since 1968 our full service residential and commercial plumbers have been available around-the-clock to tackle your plumbing service needs! We never charge extra, always stand behind our work, and provide upfront pricing so you know exactly what you are paying for ahead of time. You can count on our plumbers to deliver fast, affordable, and reliable plumbing services throughout the state of Maryland. Call us today, we look forward to serving you for years to come!
"GREAT SERVICE "
Nick N on June 2025
Dealing with a busted toilet? Can't seem to unclog that drain? It's time to call on your local Mr. Rooter® Plumbing. Since 1968 our full service residential and commercial plumbers have been available around-the-clock to tackle your plumbing service needs! We never charge extra, always stand behind our work, and provide upfront pricing so you know exactly what you are paying for ahead of time. You can count on our plumbers to deliver fast, affordable, and reliable plumbing services throughout the state of Maryland. Call us today, we look forward to serving you for years to come!
"GREAT SERVICE "
Nick N on June 2025
Modern Plumbing Systems strives to be your best option when it comes to plumbing service. It is our business to deliver to your home a LICENSED, PROFESSIONAL PLUMBER that makes your service experience the best it can be. All of our technicians are highly trained, with a minimum of 10 years plumbing experience. Please call any time to speak with a certified professional plumber. We are standing by to help you now.
"Great customer service, fast response and very reasonable price. Will definitely use them again."
John Y on May 2025
Modern Plumbing Systems strives to be your best option when it comes to plumbing service. It is our business to deliver to your home a LICENSED, PROFESSIONAL PLUMBER that makes your service experience the best it can be. All of our technicians are highly trained, with a minimum of 10 years plumbing experience. Please call any time to speak with a certified professional plumber. We are standing by to help you now.
"Great customer service, fast response and very reasonable price. Will definitely use them again."
John Y on May 2025
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Jamie did an excellent job all by himself. He gave a good amount of discounts and got the job done. His expertise showed not only in his ability to do the job, but also to give recommendations on how to get long lasting use of my water heater. I will recommend him for all your plumbing work."
Abiodun L on July 2025
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Jamie did an excellent job all by himself. He gave a good amount of discounts and got the job done. His expertise showed not only in his ability to do the job, but also to give recommendations on how to get long lasting use of my water heater. I will recommend him for all your plumbing work."
Abiodun L on July 2025
Family Owned and Operated since 2000, we are your Signature Remodeling Contractor in Southern Maryland! Servicing Calvert, St. Mary's, Charles, PG and Anne Arundel Counties. We specialize in Kitchen and Bath remodels of all sizes as well as finishing basements , however we do general home improvement needs you may have. Our work is second to none and we never use sub-contractors. We personally work with you every step of the way! We back our work with a satisfaction guarantee and we won't stop until you're satisfied with the final product! We are licensed, bonded and insured. Give us a call at 410-449-9851 or send us an email Signaturecontractingllc@gmail.com
"JJ and his crew installed new flooring throughout our home. It was not without it's challenges due to the age and condition of the house and the spiral staircase but they made it happen on budget. The end result is beautiful."
Dave H on June 2025
Family Owned and Operated since 2000, we are your Signature Remodeling Contractor in Southern Maryland! Servicing Calvert, St. Mary's, Charles, PG and Anne Arundel Counties. We specialize in Kitchen and Bath remodels of all sizes as well as finishing basements , however we do general home improvement needs you may have. Our work is second to none and we never use sub-contractors. We personally work with you every step of the way! We back our work with a satisfaction guarantee and we won't stop until you're satisfied with the final product! We are licensed, bonded and insured. Give us a call at 410-449-9851 or send us an email Signaturecontractingllc@gmail.com
"JJ and his crew installed new flooring throughout our home. It was not without it's challenges due to the age and condition of the house and the spiral staircase but they made it happen on budget. The end result is beautiful."
Dave H on June 2025
At Elohim Construction, LLC, one call does it all. We specialize in Complete Bathroom and Kitchen remodeling and more. No project is too large . We can help save time from the first phone call through project completion. We help by multi-tasking work which means we complete jobs faster and better than your typical handyman for hire. We are located in Pasadena and only serve in the state of Maryland.
"Arturo, Wendy and the team are outstanding and very professional. They are masters at building, designing and delivering a magnificent product! We needed two bathrooms renovated, one to meet the needs of my husband with medical disabilities. Arturo understood the request and immediately put a plan in place. The team implemented and succinctly executed so that the job was done neatly and before the deadline. HIRE THIS TEAM!! You will be so glad you did! We are so pleased - both bathrooms are BEAUTIFUL!!"
Gina T on November 2024
At Elohim Construction, LLC, one call does it all. We specialize in Complete Bathroom and Kitchen remodeling and more. No project is too large . We can help save time from the first phone call through project completion. We help by multi-tasking work which means we complete jobs faster and better than your typical handyman for hire. We are located in Pasadena and only serve in the state of Maryland.
"Arturo, Wendy and the team are outstanding and very professional. They are masters at building, designing and delivering a magnificent product! We needed two bathrooms renovated, one to meet the needs of my husband with medical disabilities. Arturo understood the request and immediately put a plan in place. The team implemented and succinctly executed so that the job was done neatly and before the deadline. HIRE THIS TEAM!! You will be so glad you did! We are so pleased - both bathrooms are BEAUTIFUL!!"
Gina T on November 2024
James L. Graves Construction is a full service Builder/Re-modeler where "Quality without compromise" is our philosophy. We are an A rated Better Business Bureau Company, Angie's List Super Service Award Winner Every Year Since 2006. EPA Lead Safe Paint Certified Firm, Members of the National Association of Home Builders/Re-modelers, Maryland Home Builders Association, National Kitchen and Bath Association and an Approved Veterans Specially Adapted Housing Certified Builder. Each of our divisions operates under the same principle: You deserve a partner that has the expertise to guide you through every step of your project.
"Superb! My first remodeling experience. Jim Graves and his team flawlessly managed the entire process from estimate to design to demolition to "build". First rate team for every effort. Jim was engaged at every step of the way, and the foreman was experienced, hard-working, professional, and communicative. Honest, transparent & understandable pricing, and most of all - they know the work. Jim has over 40 years of experience, and it is evident in the pride he takes in his projects. Overall, great pros to work with. I would unhesitatingly use them again!"
Gregory W on June 2021
James L. Graves Construction is a full service Builder/Re-modeler where "Quality without compromise" is our philosophy. We are an A rated Better Business Bureau Company, Angie's List Super Service Award Winner Every Year Since 2006. EPA Lead Safe Paint Certified Firm, Members of the National Association of Home Builders/Re-modelers, Maryland Home Builders Association, National Kitchen and Bath Association and an Approved Veterans Specially Adapted Housing Certified Builder. Each of our divisions operates under the same principle: You deserve a partner that has the expertise to guide you through every step of your project.
"Superb! My first remodeling experience. Jim Graves and his team flawlessly managed the entire process from estimate to design to demolition to "build". First rate team for every effort. Jim was engaged at every step of the way, and the foreman was experienced, hard-working, professional, and communicative. Honest, transparent & understandable pricing, and most of all - they know the work. Jim has over 40 years of experience, and it is evident in the pride he takes in his projects. Overall, great pros to work with. I would unhesitatingly use them again!"
Gregory W on June 2021
Company Motto: WHEN WE'RE DONE, YOU'LL BE HAPPY, IF YOU'RE NOT HAPPY, WE'RE NOT DONE. It's more than just a motto, it's our Company-Heartbeat. Family owned and operated, we have been serving Maryland Home owners since 1989. Stephen Longdo is a working owner, available to all his clients on a daily basis. We refuse to bid to subcontractors and give a FIVE YEAR FREE LABOR WARRANTY ON ALL OUR WORK. Member of BBB and the Maryland Improvement Contractors Association. MHIC License 37105. Angie's list members are entitled to 25% off, (up to $2,500.00 per household per year).
"All work was completed in a professional manner from initial planning through all phases of construction. The job site was maintained as expected. AES worked with us on a few small changes we requested along the way as well. I felt very comfortable with all the craftsperson’s at work in our home. There was great communication with AES throughout the job. I would use their services in the future."
Joe S on January 2025
Company Motto: WHEN WE'RE DONE, YOU'LL BE HAPPY, IF YOU'RE NOT HAPPY, WE'RE NOT DONE. It's more than just a motto, it's our Company-Heartbeat. Family owned and operated, we have been serving Maryland Home owners since 1989. Stephen Longdo is a working owner, available to all his clients on a daily basis. We refuse to bid to subcontractors and give a FIVE YEAR FREE LABOR WARRANTY ON ALL OUR WORK. Member of BBB and the Maryland Improvement Contractors Association. MHIC License 37105. Angie's list members are entitled to 25% off, (up to $2,500.00 per household per year).
"All work was completed in a professional manner from initial planning through all phases of construction. The job site was maintained as expected. AES worked with us on a few small changes we requested along the way as well. I felt very comfortable with all the craftsperson’s at work in our home. There was great communication with AES throughout the job. I would use their services in the future."
Joe S on January 2025
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.