The Best Insulation Contractors in Randallstown, MD

Compare the highest-rated insulation professionals in Randallstown, Maryland. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Koala Insulation of Baltimore

4.8
(180 reviews)
Verified

A highly-rated, modern insulation company known for its focus on energy efficiency and customer education. They offer a wide range of services including blown-in attic insulation, spray foam, and insulation removal. They are praised for their professional crews, clear communication, and knowledge of current rebates and building science.

11239 McCormick Rd, Hunt Valley, MD 21031 (Serves Randallstown)

Specialties & Features

Blown-in insulation
Spray foam insulation
Insulation removal and replacement

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes
#2

Superior Insulation Company

4.7
(150 reviews)
Verified

A long-standing, family-owned contractor with a stellar reputation in Central Maryland. They have extensive experience with both residential and commercial projects. Their expertise covers all major insulation types, and they are particularly noted for their work in complex attic and crawl space encapsulation projects.

7946 Conell Ct, Baltimore, MD 21222 (Serves Randallstown)

Specialties & Features

Attic insulation installation and upgrade
Basement and crawl space insulation
Air sealing services

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

BWI Insulation

4.6
(90 reviews)
Verified

A reputable local contractor that specializes in spray foam applications but offers a full suite of insulation services. They are known for their technical expertise, especially with closed-cell and open-cell foam in walls, roofs, and basements. They often work alongside home performance companies to conduct energy audits.

7944 Honeygo Blvd, Nottingham, MD 21236 (Serves Randallstown)

Specialties & Features

Spray foam insulation
Wall insulation services
Energy efficiency expertise

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Randallstown

** The insulation market in Randallstown and the greater Baltimore area is competitive and of generally high quality. Homeowners in this region are increasingly focused on energy efficiency due to the area's humid summers and cold winters, which drives demand for professional insulation upgrades. * **Average Quality & Competition:** The market is split between large, well-marketed franchises (like Koala) and established, local specialists (like Superior and BWI). This competition benefits consumers, as companies must maintain high service standards and fair pricing to compete. The best providers are well-versed in modern building science principles, including the critical combination of air sealing and insulation. * **Typical Pricing:** Pricing is in line with the Mid-Atlantic region. As a rough guide: * **Blown-In Attic Insulation:** $1,500 - $4,500+ * **Spray Foam Insulation (R-Value dependent):** $1.50 - $4.50+ per board foot. * **Wall Insulation (Blown-in):** $1,000 - $3,500+ per wall. * **Insulation Removal:** $1 - $4+ per square foot. * Final costs are highly dependent on project size, material type, accessibility, and the current condition of the space. Reputable companies will provide free, detailed, in-home estimates. * **Local Considerations:** Top contractors will be familiar with Baltimore County building codes and may be able to advise on available rebates from programs like the IRS Energy Efficient Home Improvement Credit or local utility incentives, making upgrades more affordable.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Randallstown regulations and climate

Frequently Asked Questions About Insulation in Randallstown

Get answers to common questions about insulation services in Randallstown, Maryland.

1What is the most cost-effective type of insulation for my older home in Randallstown?

For many of Randallstown's older homes, blown-in cellulose or fiberglass insulation in the attic is often the most cost-effective upgrade. This method is excellent for filling irregular joist cavities and can significantly improve thermal performance. Given Maryland's humid summers and cold winters, proper attic insulation helps manage both heating and cooling costs year-round, with many homeowners seeing a strong return on investment through reduced BGE or Potomac Edison bills.

2When is the best time of year to have insulation installed in Randallstown?

The ideal times are late spring (April-May) and early fall (September-October). These periods typically offer mild, dry weather in the Baltimore County area, which is optimal for attic work and allows for proper ventilation during installation. Scheduling during these shoulder seasons also helps you prepare your home for the peak heating and cooling demands of Maryland's summer humidity and winter cold snaps, and you'll avoid the contractor backlog common in deep summer and winter.

3Are there any local regulations or rebates in Randallstown for insulation projects? **Question:** Are there any local regulations or rebates in Randallstown for insulation projects?

While Randallstown follows Maryland's building codes, specific permits for adding insulation to existing homes are often not required unless structural work is involved. However, the key local incentive is the statewide EmPOWER Maryland program, which offers rebates for energy efficiency upgrades through participating utilities like BGE. Additionally, federal tax credits for qualified insulation materials are available, making it crucial to work with a contractor knowledgeable about these programs to maximize your savings.

4How do I choose a reliable insulation contractor in the Randallstown area?

Prioritize contractors who are licensed, insured, and have strong local references in Baltimore County. Look for companies experienced with the specific challenges of our regional homes, such as managing attic ventilation to prevent moisture buildup in our humid climate and sealing air leaks common in older construction. Always get 2-3 detailed, written estimates that specify the R-value, material type, and scope of work, and verify they perform a pre-installation energy assessment.

5My house feels drafty in winter. Should I focus on adding more insulation or on air sealing?

For Randallstown homes, air sealing is often the critical first step, especially in attics and basements where cold air infiltration is common. Adding insulation without proper air sealing is like wearing a sweater unbuttoned in the wind—it's far less effective. A professional assessment can identify key leakage points. A comprehensive approach that combines air sealing with adding insulation to recommended Maryland R-values (e.g., R-49 to R-60 for attics) will provide the greatest comfort and energy savings.