Top-rated boiler installation pros.

Get matched with top boiler installation pros in McNair, VA

There are 40 highly-rated local boiler installation pros.

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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon3.7k+
    Verified boiler installation services reviews

Find Boiler installation pros in McNair

"I’ve been a loyal Snell customer for years, but this recent experience was deeply disappointing. After our AC failed in August, Snell diagnosed a leaking evaporator coil. We chose to replace the system through them, and the salesperson took time to evaluate the setup in advance. However, on installation day, the crew arrived without the correct ductwork and had to make adjustments on the fly. Unfortunately, the adjustments were poorly executed: • The Aprilaire humidifier was mounted on sloped ductwork rather than a level surface, contrary to manufacturer specifications. • The hole for the humidifier was cut inaccurately. • The drain line was left kinked in multiple places. Aprilaire support later confirmed the humidifier was not installed correctly and warned this could lead to water backing up into the system — a concern I had raised with the installers before they left. Despite multiple follow-up attempts, I received no meaningful response. I was told my concerns would be escalated, but no one followed through. This was a major investment, and I now feel I need to bring in another HVAC team to correct issues that should have been resolved from the start. I’ve recommended Snell in the past, but I can’t in good faith do so now after this experience."

Will H on September 2025

Family owned & operated. Financing available. Credit cards. All work done by experienced professionals to ensure consistent high quality. Award winning company at your service.

"I’ve been a loyal Snell customer for years, but this recent experience was deeply disappointing. After our AC failed in August, Snell diagnosed a leaking evaporator coil. We chose to replace the system through them, and the salesperson took time to evaluate the setup in advance. However, on installation day, the crew arrived without the correct ductwork and had to make adjustments on the fly. Unfortunately, the adjustments were poorly executed: • The Aprilaire humidifier was mounted on sloped ductwork rather than a level surface, contrary to manufacturer specifications. • The hole for the humidifier was cut inaccurately. • The drain line was left kinked in multiple places. Aprilaire support later confirmed the humidifier was not installed correctly and warned this could lead to water backing up into the system — a concern I had raised with the installers before they left. Despite multiple follow-up attempts, I received no meaningful response. I was told my concerns would be escalated, but no one followed through. This was a major investment, and I now feel I need to bring in another HVAC team to correct issues that should have been resolved from the start. I’ve recommended Snell in the past, but I can’t in good faith do so now after this experience."

Will H on September 2025


Avatar for Kramer and Sons Plumbing Services Inc

Kramer and Sons Plumbing Services Inc

4.68(
660
)
Approved Pro

Kramer and Sons Plumbing Services Inc

4.68(
660
)
Approved Pro
Customers say: Super punctual
81 local quotes requested
36 years of experience

**We have a $59 service fee on all in-person on-site estimates** Whether you are having trouble with your HVAC system or you need help tackling issues with your home’s plumbing, the team of Alexandria home services experts at Kramer & Sons can help. They are a locally owned and operated company that has been treating customers like family since 1989. Their services include the installation, maintenance, and repair of heating and air conditioning systems, as well as plumbing matters such as drain cleaning, sewer and water line repair, sump pumps, and water heaters. Reach out to their team today to get to know these highly skilled technicians and schedule your first appointment

"On time. Helpful advice on selecting faucet and garbage disposal. Very experienced plumber, worked methodically and efficiently. Came well-prepared with tools and parts. Took care to protect floor, countertop, and cabinets. The under-sink area, valves and drains are cleanly installed and a big improvement over the mess that was replaced."

Cedar D on November 2025

**We have a $59 service fee on all in-person on-site estimates** Whether you are having trouble with your HVAC system or you need help tackling issues with your home’s plumbing, the team of Alexandria home services experts at Kramer & Sons can help. They are a locally owned and operated company that has been treating customers like family since 1989. Their services include the installation, maintenance, and repair of heating and air conditioning systems, as well as plumbing matters such as drain cleaning, sewer and water line repair, sump pumps, and water heaters. Reach out to their team today to get to know these highly skilled technicians and schedule your first appointment

"On time. Helpful advice on selecting faucet and garbage disposal. Very experienced plumber, worked methodically and efficiently. Came well-prepared with tools and parts. Took care to protect floor, countertop, and cabinets. The under-sink area, valves and drains are cleanly installed and a big improvement over the mess that was replaced."

Cedar D on November 2025


Avatar for F.H. Furr Plumbing Heating AC & Electrical

F.H. Furr Plumbing Heating AC & Electrical

4.71(
2,055
)
Approved Pro

F.H. Furr Plumbing Heating AC & Electrical

4.71(
2,055
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
44 years of experience

F.H. Furr provides residential products and services in the plumbing, heating, air conditioning, and electrical business. They put their customers first and provide them with quality products from trained technicians. F.H. Furr has committed to the highest degree of professional development and training in the industry, to work diligently in exceeding every expectation of the client in need. Based out of Manassas, Va., the company has expanded throughout Northern Va., Rockville, Md., Fredericksburg, and Richmond, Va. Whether you need plumbing, heating, cooling, or electrical repairs or replacements, call on F.H. Furr for "Absolutely The Best" service!

"The repair work was well done. I had no idea it would take 2 people. The first quote was for a lower price but then they did not have the parts so I said OK to the more expensive option. But then they were not able to do the more expensive option so they went and got the part for the lower price option. But ultimately they charged me for the higher price option. I have called three days in a row and have not been able to resolve the price discrepancy."

Andy W on June 2025

F.H. Furr provides residential products and services in the plumbing, heating, air conditioning, and electrical business. They put their customers first and provide them with quality products from trained technicians. F.H. Furr has committed to the highest degree of professional development and training in the industry, to work diligently in exceeding every expectation of the client in need. Based out of Manassas, Va., the company has expanded throughout Northern Va., Rockville, Md., Fredericksburg, and Richmond, Va. Whether you need plumbing, heating, cooling, or electrical repairs or replacements, call on F.H. Furr for "Absolutely The Best" service!

"The repair work was well done. I had no idea it would take 2 people. The first quote was for a lower price but then they did not have the parts so I said OK to the more expensive option. But then they were not able to do the more expensive option so they went and got the part for the lower price option. But ultimately they charged me for the higher price option. I have called three days in a row and have not been able to resolve the price discrepancy."

Andy W on June 2025


Avatar for Salvation LLC

Salvation LLC

New on AngiNew on Angi
Approved Pro

Salvation LLC

New on AngiNew on Angi
Approved Pro
8 years of experience
Free onsite estimate

As a team of fully trained and experienced professionals, we know everything there is to know about HVAC units and understand the importance of quality work. Our highly trained heating and air conditioning technician take their work seriously and stand proudly behind every completed job. We strive always to give it one hundred percent to make sure your HVAC work is done skillfully, efficiently, and on time. To achieve this aim, we use only the very best tools, equipment, and materials. We also conduct a rigorous inspection after our work to ensure optimal performance before we consider the job done. Great work, reasonable prices, and friendly workers: it's no wonder our clients say we're the best of all HVAC companies around.

As a team of fully trained and experienced professionals, we know everything there is to know about HVAC units and understand the importance of quality work. Our highly trained heating and air conditioning technician take their work seriously and stand proudly behind every completed job. We strive always to give it one hundred percent to make sure your HVAC work is done skillfully, efficiently, and on time. To achieve this aim, we use only the very best tools, equipment, and materials. We also conduct a rigorous inspection after our work to ensure optimal performance before we consider the job done. Great work, reasonable prices, and friendly workers: it's no wonder our clients say we're the best of all HVAC companies around.


Avatar for Charles Graves Painting Company

Charles Graves Painting Company

5.00(
168
)
Approved Pro

Charles Graves Painting Company

5.00(
168
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
22 local quotes requested

We are a Class A Licensed and Insured northern Virginia remodeling and painting company. We are a Licensed Class A Builder, and Licensed Class A Plumber (RBC, PLB, PTC, and HIC licenses). We offer professional remodeling and painting services to Burke, Springfield, Fairfax, Fairfax station, McLean, Arlington, Alexandria, Annandale, Aldie, Ashburn, Herndon, Woodbridge, Oakton, Clifton VA and more! Our owner, Charles, has been professionally working in remodeling, plumbing, and painting for over 15 years, and our staff are highly skilled and trained. We do high-quality bath remodeling, painting, interior painting, exterior painting, residential and commercial painting, along with basement finishing, basement waterproofing solutions, kitchen remodeling, limewash, deck staining, and custom carpentry! Call us at 703-953-4631 Check out our website at https://www.charlesgravespainting.com To see our bathroom remodeling gallery: https://www.charlesgravespainting.com/bath-remodels-nova

"We had just purchased our forever home and loved everything about our new home, except the master bathroom. We almost did not purchase the home due to how outdated it was but CGP was able to show us that it could be something so much better and modern. We met with their designer, selected all of our materials with their help and they started work as soon as all the materials arrived! They were very easy to work with and having small children and pets during construction can be a nightmare but Charles, Ana and the whole team worked around our family needs and they were absolutely amazing. The bathroom turned our so much better than I could've ever imagine. And it will last for years to come. Thank you so much guys!!"

Katharyn J on December 2025

We are a Class A Licensed and Insured northern Virginia remodeling and painting company. We are a Licensed Class A Builder, and Licensed Class A Plumber (RBC, PLB, PTC, and HIC licenses). We offer professional remodeling and painting services to Burke, Springfield, Fairfax, Fairfax station, McLean, Arlington, Alexandria, Annandale, Aldie, Ashburn, Herndon, Woodbridge, Oakton, Clifton VA and more! Our owner, Charles, has been professionally working in remodeling, plumbing, and painting for over 15 years, and our staff are highly skilled and trained. We do high-quality bath remodeling, painting, interior painting, exterior painting, residential and commercial painting, along with basement finishing, basement waterproofing solutions, kitchen remodeling, limewash, deck staining, and custom carpentry! Call us at 703-953-4631 Check out our website at https://www.charlesgravespainting.com To see our bathroom remodeling gallery: https://www.charlesgravespainting.com/bath-remodels-nova

"We had just purchased our forever home and loved everything about our new home, except the master bathroom. We almost did not purchase the home due to how outdated it was but CGP was able to show us that it could be something so much better and modern. We met with their designer, selected all of our materials with their help and they started work as soon as all the materials arrived! They were very easy to work with and having small children and pets during construction can be a nightmare but Charles, Ana and the whole team worked around our family needs and they were absolutely amazing. The bathroom turned our so much better than I could've ever imagine. And it will last for years to come. Thank you so much guys!!"

Katharyn J on December 2025


MID ATLANTIC SEWER LLC

New on AngiNew on Angi
Approved Pro

MID ATLANTIC SEWER LLC

New on AngiNew on Angi
Approved Pro
1 years of experience
Free onsite estimate

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 45 years collective experience.

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 45 years collective experience.


Avatar for Mega MultiService

Mega MultiService

5.00(
2
)
Approved Pro

Mega MultiService

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Mega MultiService is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"I hired them for moving my treadmill from one room to another.they did the job very well and provided an excellent service"

Anu P on May 2023

Mega MultiService is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"I hired them for moving my treadmill from one room to another.they did the job very well and provided an excellent service"

Anu P on May 2023


Avatar for '58 Foundations

'58 Foundations

4.35(
20
)
Approved Pro

'58 Foundations

4.35(
20
)
Approved Pro
Customers say: Quick response
31 local quotes requested
67 years of experience

For over 66 years, '58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawl space encapsulation, foundation repair, and mold removal. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and upholding the values upon which '58 Foundations & Waterproofing was built: trust, teamwork, integrity, respect, and communication. From the initial call to job completion, our customers are met with knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry. What’s more, you can enjoy the peace of mind that comes with our lifetime warranty and our industry-unique money-back guarantee!

"They honored their contract and were willing to come back and help us work through a problem that popped up. It was refreshing to have a company actually be responsible and take responsibility. They were kind, professional and actually took care of us, what else can I say?"

Cameron H on April 2022

For over 66 years, '58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawl space encapsulation, foundation repair, and mold removal. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and upholding the values upon which '58 Foundations & Waterproofing was built: trust, teamwork, integrity, respect, and communication. From the initial call to job completion, our customers are met with knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry. What’s more, you can enjoy the peace of mind that comes with our lifetime warranty and our industry-unique money-back guarantee!

"They honored their contract and were willing to come back and help us work through a problem that popped up. It was refreshing to have a company actually be responsible and take responsibility. They were kind, professional and actually took care of us, what else can I say?"

Cameron H on April 2022


Avatar for West Shore Home Baltimore

West Shore Home Baltimore

4.94(
364
)
Approved Pro

West Shore Home Baltimore

4.94(
364
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
858 local quotes requested

To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

"Excellent customer service. Excellent finished product. West Shore Home came to install a shower in one bathroom and bathtub/shower in another bathroom. Their customer service is top tier! They took extra caution to ensure they didn’t damage or disrupt my home or other furniture as they carried their equipment in and out of the house. They encouraged me to see the progress as they worked. (Nothing to hide is always a good thing.) When I expressed surprise and disappointment with one aspect of the design, they immediately began solutioning the issue."

Isiah T on January 2025

To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

"Excellent customer service. Excellent finished product. West Shore Home came to install a shower in one bathroom and bathtub/shower in another bathroom. Their customer service is top tier! They took extra caution to ensure they didn’t damage or disrupt my home or other furniture as they carried their equipment in and out of the house. They encouraged me to see the progress as they worked. (Nothing to hide is always a good thing.) When I expressed surprise and disappointment with one aspect of the design, they immediately began solutioning the issue."

Isiah T on January 2025


"Professional, expert paintings, appeared on time. No complaints. Gate good advice on wiring home for wifi TV. "

Craig L on November 2025

With several years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"Professional, expert paintings, appeared on time. No complaints. Gate good advice on wiring home for wifi TV. "

Craig L on November 2025

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Install Boiler questions, answered by experts

Common problems include leaks, low pressure, and inefficient heating. Regular maintenance prevents many issues.

Always consult your manual for specific pressure numbers. Many expansion tanks come pre-pressurized at a specific PSI range, anywhere from 12 to 40 PSI, designed for a range of home boilers. You should not have to pressurize an expansion tank yourself, only the boiler system. If your system has a tank that needs to be manually pressurized, this is generally a job for professionals and their tools.

Coolant and antifreeze are technically not the same thing. The difference between the two is the ratio of water to other chemicals. True antifreeze is mainly made up of either ethylene glycol or propylene glycol, while coolant comprises one part antifreeze and one part water. However, the terms coolant and antifreeze are often used interchangeably, even by pros.

The radiators closest in proximity to the boiler heating system will heat up first. Radiators in rooms farther away from the boiler will take longer to heat up and may be the coolest rooms in the house. The radiator unit itself should heat up evenly; otherwise, there may be trapped air inside it.

Since your boiler keeps you warm and provides hot water to your home, you’re likely to notice issues with heating in your living space right away. The most obvious sign that your boiler is breaking is not getting any heat or hot water. You might also hear some odd sounds coming from your boiler during operation, the flame in your gas boiler is not blue, the pressure is inconsistent, or your boiler is using more energy than it should. If you notice any of these signs, be sure to call a pro right away.

The McNair, VA homeowners’ guide to boiler installation services

From average costs to expert advice, get all the answers you need to get your job done.

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