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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon254
    Verified insulation services reviews

Find Insulation pros in Westphalia

Avatar for Terra Insulation

Terra Insulation

Servicing Around
4.86(
7
)
Approved Pro

Terra Insulation

Servicing Around
4.86(
7
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 local quotes requested

Our insulation and home performance company is dedicated to creating more comfortable and energy-efficient homes. Our mission is to help homeowners save money on their energy bills while reducing their carbon footprint. With years of experience in the industry, we specialize in providing top-quality insulation and air-sealing services that are tailored to meet the unique needs of each client. Our team of BPI certified Energy Strategists used the latest technology, techniques and standards to ensure that your home is properly insulated, so you can enjoy optimal comfort year-round. Whether you need insulation installed, air sealing services, or a comprehensive home energy audit, we are here to help you achieve your goals.

"It went well. A small mis-communication caused by accidental damage to a ceiling, but it worked out fine."

Robert F on July 2025

Our insulation and home performance company is dedicated to creating more comfortable and energy-efficient homes. Our mission is to help homeowners save money on their energy bills while reducing their carbon footprint. With years of experience in the industry, we specialize in providing top-quality insulation and air-sealing services that are tailored to meet the unique needs of each client. Our team of BPI certified Energy Strategists used the latest technology, techniques and standards to ensure that your home is properly insulated, so you can enjoy optimal comfort year-round. Whether you need insulation installed, air sealing services, or a comprehensive home energy audit, we are here to help you achieve your goals.

"It went well. A small mis-communication caused by accidental damage to a ceiling, but it worked out fine."

Robert F on July 2025


Avatar for Discount Energy Services

Discount Energy Services

1520 Belle View Blvd
4.36(
81
)
Approved Pro

Discount Energy Services

1520 Belle View Blvd
4.36(
81
)
Approved Pro
Customers say: Terrific value
91 local quotes requested
41 years of experience

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


Avatar for ROI Construction LLC

ROI Construction LLC

8378 Veterans Hwy
4.60(
10
)
Approved Pro

ROI Construction LLC

8378 Veterans Hwy
4.60(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
160 local quotes requested

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


USA Insulation of Central Maryland

7389 Washington Blvd
No reviews yet

USA Insulation of Central Maryland

7389 Washington Blvd
No reviews yet
5 years of experience

USA Insulation is a national franchise that specializes in premium wall insulation that's ecofriendly and ideal for retrofit applications. The company has insulation more than 100,000 homes nationwide. Established in 1977 and incorporated in 1985, USA Insulation has saved thousands of customers millions of dollars on their heating and air conditioning bills. The company is headquarter in Cleveland, Ohio with locations across the county. This local branch is located just outside Martinsburg, West Virginia. USA Premium Foam is a unique foam-in-place insulation that performs better than other retrofit insulation. The insulation is eco-friendly and the durable material works in any type of home. USA Premium Foam Insulation makes installation is a breeze, and with our one-step retrofit process ensures your home's thermal envelope is tightly sealed. The benefits of USA Premium Injection Foam Insulation include: - Better home comfort - Energy savings - Lower utility bills - Outperforms other retrofit insulation - Is environmentally friendly - Installs in any type of home - American-made Ask us about our Senior Citizen Discount.

USA Insulation is a national franchise that specializes in premium wall insulation that's ecofriendly and ideal for retrofit applications. The company has insulation more than 100,000 homes nationwide. Established in 1977 and incorporated in 1985, USA Insulation has saved thousands of customers millions of dollars on their heating and air conditioning bills. The company is headquarter in Cleveland, Ohio with locations across the county. This local branch is located just outside Martinsburg, West Virginia. USA Premium Foam is a unique foam-in-place insulation that performs better than other retrofit insulation. The insulation is eco-friendly and the durable material works in any type of home. USA Premium Foam Insulation makes installation is a breeze, and with our one-step retrofit process ensures your home's thermal envelope is tightly sealed. The benefits of USA Premium Injection Foam Insulation include: - Better home comfort - Energy savings - Lower utility bills - Outperforms other retrofit insulation - Is environmentally friendly - Installs in any type of home - American-made Ask us about our Senior Citizen Discount.


Metstar Premier Era Innovations

12410 Milestone Center Drive
No reviews yet

Metstar Premier Era Innovations

12410 Milestone Center Drive
No reviews yet
2 years of experience

At Metstar Premier Era Innovations, we’re passionate about turning dreams into reality. We specialize in crafting both residential and commercial spaces in Maryland, DC and Northern Virginia with unwavering attention to detail. Our values of integrity, innovation, and collaboration drive every project we undertake. We listen, create, and build all while prioritizing your vision and aspirations. Trust us to bring excellence and quality to your project - it’s what defines us!

At Metstar Premier Era Innovations, we’re passionate about turning dreams into reality. We specialize in crafting both residential and commercial spaces in Maryland, DC and Northern Virginia with unwavering attention to detail. Our values of integrity, innovation, and collaboration drive every project we undertake. We listen, create, and build all while prioritizing your vision and aspirations. Trust us to bring excellence and quality to your project - it’s what defines us!



Avatar for Affordable Thorough Infrared

Affordable Thorough Infrared

135 Paddock Dr
No reviews yet

Affordable Thorough Infrared

135 Paddock Dr
No reviews yet
5 years of experience

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 .


We do Interior and Exterior Remodeling. We are certified Carpenters and Construction Worker. We do additions to interior of homes. We can also build patios, decks and more for out door jobs.


Classic Quality

PO Box 431
No reviews yet

Classic Quality

PO Box 431
No reviews yet

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.


GRP Concepts

3032 Hewitt Ave
No reviews yet

GRP Concepts

3032 Hewitt Ave
No reviews yet
Free onsite estimate

Se habla espanol We are licenses in Maryland, DC, and Virginia We provide various remodeling services Metal/wood framing Drywall installation and finishing insulation Painting Demolition Decks Hardwood/ceramic floors Vinyl Siding Powerwash We are a family-owned business based out of Montgomery County. We provide all sorts of home improvement work within the DMV area. We offer competitive prices with excellent quality.

Se habla espanol We are licenses in Maryland, DC, and Virginia We provide various remodeling services Metal/wood framing Drywall installation and finishing insulation Painting Demolition Decks Hardwood/ceramic floors Vinyl Siding Powerwash We are a family-owned business based out of Montgomery County. We provide all sorts of home improvement work within the DMV area. We offer competitive prices with excellent quality.

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Insulation questions, answered by experts

Doubling the insulation in your home also doubles the R-value of said insulation. In other words, by adding more insulation, you can reduce the heat loss by half. Most homes benefit from increasing insulation. Older homes, in particular tend to have less insulation as is, so doubling your insulation could drastically reduce your energy bills, keep your home more comfortable, and take the strain off your HVAC system.

If you have intermediate DIY skills and protect yourself with a full PPE suit, chemical-resistant gloves, goggles, and a respirator, you can install spray foam insulation yourself. DIYers have access to two-part spray foam retail kits that are best for use on small projects. Hiring a professional installer is likely the best option if you need to insulate a large space.

No, 55 degrees Fahrenheit is not too cold for a house, as it’s a temperature that will keep your pipes and appliances from freezing. Well-insulated homes can even go to 50 degrees, but check with an HVAC pro before opting for such a low temperature. Stick to 55 degrees to be on the safe side.

Structural insulated panels and rigid foam boards have the highest R-value of any insulation that contractors commonly use, with R-values reaching up to around 8.0. These types of insulation are best in extremely cold climates, but they’re generally preferred for new construction, as they can be challenging to retrofit. Blown-in and loose fill insulation provide the next best insulative value, provided the installation is done properly. It’s important to choose an insulation type that meets your needs based on climate, as maximizing R-value may not always be financially worthwhile if you live in a moderate climate.

If you have bubble wrap lying around the house and you don’t care about the odd look, taping bubble wrap over a window is a very affordable way to insulate it. Another inexpensive option for insulating windows is to add new caulk around the glass. This step quickly cuts down on air drafts for older windows, and a tube of caulk only costs a few dollars. Adding plastic shrink film around the glass is another cost-effective option. You can purchase a kit of plastic film for a few dollars per window.

The Westphalia, MD homeowners’ guide to insulation services

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