
Get matched with top insulation pros in Saint Charles, MD
There are 33 highly-rated local insulation pros.
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Verified Reviews for Insulation Service pros in Saint Charles, MD
*The Angi rating for Insulation Service companies in Saint Charles, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Saint Charles, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on October 28, 2025
Find Insulation pros in Saint Charles

Comfenergy, LLC
Comfenergy, LLC
Over 20 years of experience in the home comfort and efficiency field. We find solutions to the issues that your HVAC company can't. Dusty homes, hot and cold spots, high utility bills, drafty fireplaces, rooms above garages, cold floors, dirty carpet edges, and much more can be fixed by us. We provide "comfort and energy solutions".
"A total disaster. An inexperienced, untrained crew created more issues than I had before they began their work. My goal was to increase comfort levels in my senior-living, one-level home built on a slab that is super cold in the winter. I hate as a senior being taken advantage of. I was very naive. I have spent thousands and now am having to throw more good money after bad to try and make my home comfortable to live in. It is so bad; I am ready to sell! And I can’t afford to after all I have spent, without taking a loss on the sale. They dense packed my walls and now I am colder; in the process, they removed the flashing above my windows which now leak. I had to hire a window installer to replace the flashing that their incompetent crew removed. They failed to put back the siding properly, so it was hanging off my house. Once again, I had to hire a handy man to refasten the siding the crew removed while dense packing. And the dense packing was useless as it didn't enter the cavities that already had batt insulation. While spray foaming triangle boxes, boots, and plenum, they sealed off all my dampers resulting in zero air flow. They reluctantly came back and had to dig out the dampers that they had foamed over. In fact, they over-foamed at junction boxes, boots, and plenum so that HVAC techs couldn't even tune my system. There is 2 feet of foam, yet hot air is rushing out of the flexible ducts that weren’t sealed properly. Yet there remain gaps on my boxes, boots, and plenum. Just today, a HVAC tech walked me around the attic, and I could feel the hot air rushing into my attic at the junctions, boxes, boots, and plenums that are all wide open; that I paid to have sealed. I almost threw up; I am heating my attic! And the tech said it looks like a dog was in my attic as the Comfenergy crews failed to put back my blown-in fiberglass insulation they removed when trying to foam, so there is no insulation at the boxes and boots. They were simply careless and failed to rake it back and even out my insulation resulting in further cold spots I didn't have. In short, I now will have to hire another company to blow in more insulation and make sure it is even, so I don't have cold/hot spots. Additionally, they left the lights on in the attic, didn't replace the attic access foam barrier, and failed to seal the major penetrations including light cans/recessed lights and supply vents I paid for. Next came the bathroom exhaust fans; they were installed improperly and didn't vent because the outside flaps remained closed, while inside a cold draft came in my bathroom because the foam sealing, I paid for wasn't done properly. So now both my bathrooms are drafty. They were cold; now they are cold AND drafty. The HVAC tech today remarked he felt badly that I have two or more space heaters in every room, including the bathrooms! I strongly recommend carefully watching the crew if you ever choose to allow them to do any work for you. I trusted them. And I regret that. I was naive. I was cold. Rather I am still cold! I trusted their salesperson. The crew that did mine were either let go or quit. In fact, one of them still calls seeking to do side work. I politely declined. I suggest you do the same and seek a competent company that you can trust, does the work you paid for properly, and doesn't damage your home."
Charles K on November 2022
Over 20 years of experience in the home comfort and efficiency field. We find solutions to the issues that your HVAC company can't. Dusty homes, hot and cold spots, high utility bills, drafty fireplaces, rooms above garages, cold floors, dirty carpet edges, and much more can be fixed by us. We provide "comfort and energy solutions".
"A total disaster. An inexperienced, untrained crew created more issues than I had before they began their work. My goal was to increase comfort levels in my senior-living, one-level home built on a slab that is super cold in the winter. I hate as a senior being taken advantage of. I was very naive. I have spent thousands and now am having to throw more good money after bad to try and make my home comfortable to live in. It is so bad; I am ready to sell! And I can’t afford to after all I have spent, without taking a loss on the sale. They dense packed my walls and now I am colder; in the process, they removed the flashing above my windows which now leak. I had to hire a window installer to replace the flashing that their incompetent crew removed. They failed to put back the siding properly, so it was hanging off my house. Once again, I had to hire a handy man to refasten the siding the crew removed while dense packing. And the dense packing was useless as it didn't enter the cavities that already had batt insulation. While spray foaming triangle boxes, boots, and plenum, they sealed off all my dampers resulting in zero air flow. They reluctantly came back and had to dig out the dampers that they had foamed over. In fact, they over-foamed at junction boxes, boots, and plenum so that HVAC techs couldn't even tune my system. There is 2 feet of foam, yet hot air is rushing out of the flexible ducts that weren’t sealed properly. Yet there remain gaps on my boxes, boots, and plenum. Just today, a HVAC tech walked me around the attic, and I could feel the hot air rushing into my attic at the junctions, boxes, boots, and plenums that are all wide open; that I paid to have sealed. I almost threw up; I am heating my attic! And the tech said it looks like a dog was in my attic as the Comfenergy crews failed to put back my blown-in fiberglass insulation they removed when trying to foam, so there is no insulation at the boxes and boots. They were simply careless and failed to rake it back and even out my insulation resulting in further cold spots I didn't have. In short, I now will have to hire another company to blow in more insulation and make sure it is even, so I don't have cold/hot spots. Additionally, they left the lights on in the attic, didn't replace the attic access foam barrier, and failed to seal the major penetrations including light cans/recessed lights and supply vents I paid for. Next came the bathroom exhaust fans; they were installed improperly and didn't vent because the outside flaps remained closed, while inside a cold draft came in my bathroom because the foam sealing, I paid for wasn't done properly. So now both my bathrooms are drafty. They were cold; now they are cold AND drafty. The HVAC tech today remarked he felt badly that I have two or more space heaters in every room, including the bathrooms! I strongly recommend carefully watching the crew if you ever choose to allow them to do any work for you. I trusted them. And I regret that. I was naive. I was cold. Rather I am still cold! I trusted their salesperson. The crew that did mine were either let go or quit. In fact, one of them still calls seeking to do side work. I politely declined. I suggest you do the same and seek a competent company that you can trust, does the work you paid for properly, and doesn't damage your home."
Charles K on November 2022

Discount Energy Services
Discount Energy Services
Discount Energy Services has been insulating homes in Northern Virginia and the Washington, D.C. Metro area for over 30 years, and we have insulated more older homes than any of the other insulation contractors. The owner has over 40 years experience, and has always been specialized in insulating the older homes. Please call to have questions about your home insulation needs personally answered, and for an appointment for your free insulation estimate. After consulting with us, you may decide which type of insulation, and how much insulation you want after we give you your insulation suggestions, and we will also let you know what we recommend most. We will send our energy conservation specialist to your home to measure, and give you your free written prices for the energy saving options best suited for your home, whenever you are ready. Thanks again for checking with us. We guarantee the best job at the best price, and look forward to your call.
"Job done beautiful"
Thomas W on October 2024
Discount Energy Services has been insulating homes in Northern Virginia and the Washington, D.C. Metro area for over 30 years, and we have insulated more older homes than any of the other insulation contractors. The owner has over 40 years experience, and has always been specialized in insulating the older homes. Please call to have questions about your home insulation needs personally answered, and for an appointment for your free insulation estimate. After consulting with us, you may decide which type of insulation, and how much insulation you want after we give you your insulation suggestions, and we will also let you know what we recommend most. We will send our energy conservation specialist to your home to measure, and give you your free written prices for the energy saving options best suited for your home, whenever you are ready. Thanks again for checking with us. We guarantee the best job at the best price, and look forward to your call.
"Job done beautiful"
Thomas W on October 2024

ROI Construction LLC
ROI Construction LLC
Why choose ROI Construction? Our Gold Standard guarantee is 100% customer satisfaction, 100% of the time! - It's that simple. No need to keep looking for “Contractor near me,” we are the top local Maryland and DC family owned Exterior company (est. 1974) that delivers the best results and a positive return on investment in the area! ROI also does a final walkthrough of every-single-job to ensure that we deliver a superior finished product for every ROI customer!
"Very pleased with the roofing and siding work performed by ROI Construction. Jose was especially helpful and very knowledgeable in all areas of home repair, including roofing, skylights, trim and siding. Brooke did a great job scheduling and managing the project. Highly recommend ROI for your roofing/remodeling needs."
Rachel S on September 2025
Why choose ROI Construction? Our Gold Standard guarantee is 100% customer satisfaction, 100% of the time! - It's that simple. No need to keep looking for “Contractor near me,” we are the top local Maryland and DC family owned Exterior company (est. 1974) that delivers the best results and a positive return on investment in the area! ROI also does a final walkthrough of every-single-job to ensure that we deliver a superior finished product for every ROI customer!
"Very pleased with the roofing and siding work performed by ROI Construction. Jose was especially helpful and very knowledgeable in all areas of home repair, including roofing, skylights, trim and siding. Brooke did a great job scheduling and managing the project. Highly recommend ROI for your roofing/remodeling needs."
Rachel S on September 2025

The King Insulator
The King Insulator
I do all kinds of insulation for your home, from batt insulation to spray insulation, we have more than 10 years of experience offering 100 percent effective quality, we also do driwall if you need a complete service, we insulate your house completely and cover it with drywall.
"I hired Ramon and his team to do my attic insulation. He was flexible with scheduling over two days as we needed to replace ductwork for our HVAC in the attic. His prices were WAY better than anyone in Northern Virginia. He was able to come out in two days to remove all the old and dirty insulation that was thirty years old. The attic was cleaned and air gaps sealed. He came back promptly when we were for the insulation installation. Not only did they do a great job at sealing but they did a great job at spraying 18 inches of R49 Fiberglass. They were professional, timely, and cleaned up after themselves. They went above and beyond my expectations. I am so happy and would gladly recommend these guys for anyone. Five stars!!!"
Douglas H on April 2023
I do all kinds of insulation for your home, from batt insulation to spray insulation, we have more than 10 years of experience offering 100 percent effective quality, we also do driwall if you need a complete service, we insulate your house completely and cover it with drywall.
"I hired Ramon and his team to do my attic insulation. He was flexible with scheduling over two days as we needed to replace ductwork for our HVAC in the attic. His prices were WAY better than anyone in Northern Virginia. He was able to come out in two days to remove all the old and dirty insulation that was thirty years old. The attic was cleaned and air gaps sealed. He came back promptly when we were for the insulation installation. Not only did they do a great job at sealing but they did a great job at spraying 18 inches of R49 Fiberglass. They were professional, timely, and cleaned up after themselves. They went above and beyond my expectations. I am so happy and would gladly recommend these guys for anyone. Five stars!!!"
Douglas H on April 2023

Affordable Thorough Infrared
Affordable Thorough Infrared
Maryland state licensed, certified and insured Home and Building Inspector, Ati Inspections dba Affordable Thorough Infrared Residential and Commercial Building Inspections,Over 30 years of construction related experience, we use Infrared technology in all our inspections, we provide Ancillary services, Moisture Intrusion, Energy Audit, Air Quality, Well water, Mold, Wood Destroying Organisms ( Termite etc), Thermography, Thermal Imaging, pre-sale, Member and certified by interNACHI .
Maryland state licensed, certified and insured Home and Building Inspector, Ati Inspections dba Affordable Thorough Infrared Residential and Commercial Building Inspections,Over 30 years of construction related experience, we use Infrared technology in all our inspections, we provide Ancillary services, Moisture Intrusion, Energy Audit, Air Quality, Well water, Mold, Wood Destroying Organisms ( Termite etc), Thermography, Thermal Imaging, pre-sale, Member and certified by interNACHI .
Classic Quality
Classic Quality
Classic Quality is an owner-operated business specializing in custom residential home improvement. From custom cabinetry to handyman repair, Classic Quality provides a wide range of services drawing from over 20 years of carpentry experience. Based out of Galesville, Maryland, Classic Quality is proud to serve the Southern Maryland and Annapolis area.
Classic Quality is an owner-operated business specializing in custom residential home improvement. From custom cabinetry to handyman repair, Classic Quality provides a wide range of services drawing from over 20 years of carpentry experience. Based out of Galesville, Maryland, Classic Quality is proud to serve the Southern Maryland and Annapolis area.

Quality Assembly Solutions
Quality Assembly Solutions
I have extensive experience in delivery/assembly/installation of in-ground basketball goals, portable goals, sheds, trampolines, playsets, fitness equipment, outdoor grills and patio furniture, gazebos, pergolas, repairs, home improvements etc. High quality work with accuracy, thoroughness, and competence.
I have extensive experience in delivery/assembly/installation of in-ground basketball goals, portable goals, sheds, trampolines, playsets, fitness equipment, outdoor grills and patio furniture, gazebos, pergolas, repairs, home improvements etc. High quality work with accuracy, thoroughness, and competence.
RoofTop Designs
RoofTop Designs
Rooftop Designs is one of the **highest rated** roofers in all of Maryland, Virginia and Washington D.C.! 98% of our customers rate us a full FIVE stars. We specialize in roofing, window installation, siding, door installation, gutters, and attic insulation. We measure our success by our customer's satisfaction with our work and our products. With over 11 years of experience in the home improvement industry, Rooftop Designs delivers world-class service at affordable pricing. Our new roofs include a 50-year warranty and feature a wind resistance rating of up to 130 mph. Rooftop Designs is proud to say that we are a Certainteed Master Shingle Applicator, which ensures that our installers are fully-trained on the latest roofing materials and applications. This allows us to offer a manufacturer's warranty of up to 50 years labor and material, on top of our own 50-year warranty. We stay up-to-date on local building requirements and home owner's association guidelines in order to make sure that your project is completed on-time and done right, the first time. If you're looking for the finest roofing, window and door installation, siding, gutters, and attic insulation company in the Washington, D.C. metro area, give us a call today or send us a website inquiry. We are local to you and available to tackle any job; big or small. Our professional team stands ready to provide you with the highest-quality products and the sincere commitment to customer service that you deserve.
"ROOFTOP DESIGN IS A HORRIBLE SCAM I would be remiss not to take the time to warn others. ROOFTOP DESIGN came as a third option for roofing. However, the initial representative ED form ROOFTOP DESIGN was very professional and thorough. The problem is, he represented a bunch of shysters. Ed’s first quote to was $35,000. After approximately three days of conversation and negotiations we were at $17,000.00 for the exact same product that they tried to sale for $35,000. Salesmen Ed was no-longer reaching out to me. Someone by the name of John called me and asked, what is it that they can do to make this deal happen. We settled at $16,500.00. Once again, $16,500 for everything discussed for the original $35,000 including a 50-year warranty that is transferable to a buyer as a good selling point. I learned through John that they fired Ed for giving customers too good of deals. I also learned through John that this company has a starting bidding price and a bottom bidding price. Ed would give the bottom price too quickly. So, they fired him. (Although John’s price was better than Ed’s). Once the job started, I received a text from the owner Yanni Avramidis. He stated that there was a third layer of roofing. He also stated that it would not be a problem and that it would take a little longer. IF THERE WAS GOING TO BE ANY ADDITIONAL CHARGES, NOW WOULD BE THE TIME TO MENTION IT. Approximately two days after the completion of the job. I had a contractor over named B. B. was there to replace the soffit beneath the location where the new roof was installed. This is when I learned and saw with my own two eyes that there was rotted or no plywood at all supporting my brand-new shingles. Mind you: per our contract, there will be an extra charge for plywood beyond the first ten free sheets. This company put my expensive shingles on top of rotted wood or no wood at all. I must admit, I was upset. However, I was cool calm and collected when I reached out to the owner Yanni Avramidis. I sent him the pictures of my findings. His explanation was that I had a 50-year warranty. My point to the owner was, if I wasn’t trying to replace my soffit it might have been months or years before this was discovered. I also said, what about the elderly man or woman that doesn’t have the ambition to check your work??? The owner of ROOFTOP DESIGN became very irate. He said, “I am from Baltimore, haven’t you heard about people from Baltimore. I will beat your a**. You are going to pay me an additional $2,800.00 for the third layer of roofing and planks/ plywood.” Since I have yet to see any new plywood, I am being charged $3,000.00 per layer of roofing to be removed. I received paperwork from ROOFTOP DESIGN, the paperwork stated that my warranty was only good for as long as I owned the property. Non-transferable: Of course, I didn’t sign it. My point is, there are people being taken advantage of everyday by bullies like ROOFTOP DESIGN."
Shaniqua H on September 2023
Rooftop Designs is one of the **highest rated** roofers in all of Maryland, Virginia and Washington D.C.! 98% of our customers rate us a full FIVE stars. We specialize in roofing, window installation, siding, door installation, gutters, and attic insulation. We measure our success by our customer's satisfaction with our work and our products. With over 11 years of experience in the home improvement industry, Rooftop Designs delivers world-class service at affordable pricing. Our new roofs include a 50-year warranty and feature a wind resistance rating of up to 130 mph. Rooftop Designs is proud to say that we are a Certainteed Master Shingle Applicator, which ensures that our installers are fully-trained on the latest roofing materials and applications. This allows us to offer a manufacturer's warranty of up to 50 years labor and material, on top of our own 50-year warranty. We stay up-to-date on local building requirements and home owner's association guidelines in order to make sure that your project is completed on-time and done right, the first time. If you're looking for the finest roofing, window and door installation, siding, gutters, and attic insulation company in the Washington, D.C. metro area, give us a call today or send us a website inquiry. We are local to you and available to tackle any job; big or small. Our professional team stands ready to provide you with the highest-quality products and the sincere commitment to customer service that you deserve.
"ROOFTOP DESIGN IS A HORRIBLE SCAM I would be remiss not to take the time to warn others. ROOFTOP DESIGN came as a third option for roofing. However, the initial representative ED form ROOFTOP DESIGN was very professional and thorough. The problem is, he represented a bunch of shysters. Ed’s first quote to was $35,000. After approximately three days of conversation and negotiations we were at $17,000.00 for the exact same product that they tried to sale for $35,000. Salesmen Ed was no-longer reaching out to me. Someone by the name of John called me and asked, what is it that they can do to make this deal happen. We settled at $16,500.00. Once again, $16,500 for everything discussed for the original $35,000 including a 50-year warranty that is transferable to a buyer as a good selling point. I learned through John that they fired Ed for giving customers too good of deals. I also learned through John that this company has a starting bidding price and a bottom bidding price. Ed would give the bottom price too quickly. So, they fired him. (Although John’s price was better than Ed’s). Once the job started, I received a text from the owner Yanni Avramidis. He stated that there was a third layer of roofing. He also stated that it would not be a problem and that it would take a little longer. IF THERE WAS GOING TO BE ANY ADDITIONAL CHARGES, NOW WOULD BE THE TIME TO MENTION IT. Approximately two days after the completion of the job. I had a contractor over named B. B. was there to replace the soffit beneath the location where the new roof was installed. This is when I learned and saw with my own two eyes that there was rotted or no plywood at all supporting my brand-new shingles. Mind you: per our contract, there will be an extra charge for plywood beyond the first ten free sheets. This company put my expensive shingles on top of rotted wood or no wood at all. I must admit, I was upset. However, I was cool calm and collected when I reached out to the owner Yanni Avramidis. I sent him the pictures of my findings. His explanation was that I had a 50-year warranty. My point to the owner was, if I wasn’t trying to replace my soffit it might have been months or years before this was discovered. I also said, what about the elderly man or woman that doesn’t have the ambition to check your work??? The owner of ROOFTOP DESIGN became very irate. He said, “I am from Baltimore, haven’t you heard about people from Baltimore. I will beat your a**. You are going to pay me an additional $2,800.00 for the third layer of roofing and planks/ plywood.” Since I have yet to see any new plywood, I am being charged $3,000.00 per layer of roofing to be removed. I received paperwork from ROOFTOP DESIGN, the paperwork stated that my warranty was only good for as long as I owned the property. Non-transferable: Of course, I didn’t sign it. My point is, there are people being taken advantage of everyday by bullies like ROOFTOP DESIGN."
Shaniqua H on September 2023

S & D Construction
S & D Construction
S&D Construction is a customer-focused general contracting small business with over 30 years of experience. We deliver commercial construction, residential construction, service and maintenance, and project management services. S&D values relationships and regards repeat business as the ultimate measure of customer satisfaction.
S&D Construction is a customer-focused general contracting small business with over 30 years of experience. We deliver commercial construction, residential construction, service and maintenance, and project management services. S&D values relationships and regards repeat business as the ultimate measure of customer satisfaction.
The Saint Charles, MD homeowners’ guide to insulation services
From average costs to expert advice, get all the answers you need to get your job done.

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Wool insulation offers a higher R-value than fiberglass but is more expensive. Use this guide to estimate wool insulation costs for your home.

Learn the key factors that influence the cost of renting a blown-in insulation machine.
•Discover the average injection foam insulation cost, key price factors, and ways to save. Get transparent estimates to plan your home insulation project confidently.

Is a radiant barrier worth it for your home? It depends on the climate where you live, installation factors, and the cost of keeping your home cool.

Proper insulation is a win for your home, health, and energy bills. Between rockwool and fiberglass, which insulation comes out on top? Let’s find out.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"




