The Best Insulation Contractors in Marriottsville, MD

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

#1

Koala Insulation of Central Maryland

4.8
(150 reviews)
Verified

A highly-rated, eco-conscious provider specializing in a full suite of insulation services, including advanced air sealing and energy efficiency solutions. They emphasize using recycled and sustainable materials where possible and are known for their detailed assessments and clear communication.

9160 Rumsey Rd, Columbia, MD 21045 (Approx. 10 miles from Marriottsville)

Specialties & Features

Blown-in insulation
Spray foam insulation
Energy efficiency audits

Business Information

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

Allied Construction Services

4.7
(200 reviews)
Verified

A well-established, full-service contractor with a dedicated insulation division. They have a strong reputation for handling complex projects, including whole-home retrofits, and are proficient in navigating local building codes and utility rebate programs.

10015 Old Columbia Rd, Suite B-215, Columbia, MD 21046 (Approx. 8 miles from Marriottsville)

Specialties & Features

Insulation removal and replacement
Basement and crawl space insulation
Air sealing services

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

A+ Insulation

4.6
(120 reviews)
Verified

A specialized insulation contractor focusing primarily on residential projects. They receive consistent praise for their professionalism, clean workmanship, and expertise in both attic and wall insulation applications. They serve the entire Howard County area.

Serves the Greater Baltimore area, including Marriottsville (Based in the Baltimore metro area)

Specialties & Features

Attic insulation installation and upgrade
Wall insulation services
Crawl space insulation

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Marriottsville

The insulation market in and around Marriottsville, MD, is characterized by a mix of established local specialists and larger regional contractors from neighboring Columbia, Ellicott City, and Baltimore. Due to the rural/suburban nature of Marriottsville, many homes are older and can significantly benefit from modern insulation upgrades to improve energy efficiency. The competition is moderate but features several high-quality providers. Homeowners are generally discerning, looking for expertise in air sealing and knowledge of local utility rebates (like those from BGE). Typical pricing is in line with regional averages: attic blown-in cellulose can range from $1,500 - $3,500, spray foam insulation is a premium service starting at $2,500 and going much higher depending on scope, and comprehensive whole-home air sealing and insulation projects can range from $5,000 to $15,000+. Most reputable companies are licensed, insured, and carry certifications from manufacturers like Owens Corning.

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 Marriottsville regulations and climate

Frequently Asked Questions About Insulation in Marriottsville

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

1What are the most cost-effective insulation upgrades for my older Marriottsville home, considering our local climate?

For our humid summers and cold winters, air sealing combined with adding attic insulation (typically blown-in cellulose or fiberglass to R-49) offers the best return on investment. This directly combats energy loss through the roof, a major issue in Maryland's variable climate. Many local providers also recommend insulating basement rim joists, as this is a common source of drafts and moisture issues in our region's older homes.

2When is the best time of year to schedule insulation work in Marriottsville?

The ideal times are late spring (April-May) and early fall (September-October). These periods typically offer mild, dry weather, which is crucial for proper installation of materials like spray foam and for effective air sealing. Scheduling during these shoulder seasons also avoids the peak summer and winter demand, potentially leading to better availability and pricing from local contractors.

3Are there specific local building codes or rebates in Howard County that I should know about before insulating?

Yes, insulation work must comply with the 2021 International Energy Conservation Code (IECC) as adopted by Maryland and enforced by Howard County. More importantly, Maryland homeowners, including those in Marriottsville, have access to excellent rebates and financing through programs like the Home Energy Loan Program (HELP) and EmPOWER Maryland, which can significantly offset the cost of qualifying energy efficiency upgrades.

4How do I choose a reliable insulation contractor serving the Marriottsville area?

Prioritize contractors licensed and insured in Maryland with specific experience in our climate zone. Ask for local references in Howard County and verify they perform a pre-installation energy audit or assessment. A reputable provider will be knowledgeable about both state rebates and the specific challenges of insulating homes in our area, such as managing humidity and dealing with older construction styles.

5My house feels drafty in winter and stuffy in summer. Could inadequate insulation be the main issue?

Absolutely. Drafts and inconsistent temperatures are classic signs of poor insulation and air leakage, which are common in homes not updated for Maryland's climate. The temperature swings in Marriottsville put extra strain on your HVAC system if your building envelope is weak. A professional energy assessment can pinpoint if the issue is primarily in the attic, walls, or basement, and identify air leaks that need sealing alongside adding insulation.