Compare the highest-rated insulation professionals in Kensington, Maryland. All contractors are licensed, insured, and verified through our rigorous screening process.
A large, well-established company known for sunrooms and conservatories that also offers a comprehensive suite of insulation and energy efficiency services. They are a top choice for whole-home energy upgrades, including advanced spray foam and attic insulation, backed by strong manufacturer warranties.
Part of a national brand with a strong local franchise, Koala specializes in all types of residential and commercial insulation. They are highly regarded for their blown-in cellulose and fiberglass services, insulation removal, and air sealing. They emphasize eco-friendly options and thorough home assessments.
As the name implies, this provider is a specialist focused primarily on attic systems. They offer a targeted and expert service for attic insulation, ventilation, and air sealing. They are known for their efficiency, clear communication, and deep understanding of how attic performance impacts overall home energy use.
The insulation market in Kensington, Maryland, is characterized by high demand driven by the area's mix of historic homes (requiring careful upgrades and knowledge of older building techniques) and modern, energy-conscious homeowners. The competition is strong, with a high bar for quality due to the affluence and technical awareness of the local population. The average quality of service is very high, as subpar contractors do not survive long in this market. Homeowners expect professional certifications (like BPI), knowledge of local utility rebates (e.g., from PEPCO), and the use of high-performance materials. Typical pricing reflects the high cost of labor and materials in the region. For example, blown-in attic insulation can range from $1,500 to $4,500, while a full spray foam application in an attic or crawl space can cost between $3,500 and $8,000 or more, depending on the R-value and square footage. Customers are generally investing in long-term comfort and energy savings, making them willing to pay a premium for reputable, certified, and highly-reviewed contractors.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Kensington regulations and climate
Get answers to common questions about insulation services in Kensington, Maryland.
For Kensington's humid summers and cold winters, spray foam or blown-in cellulose are often top choices for older homes. Spray foam provides an excellent air seal, which is critical for managing humidity and preventing drafts in historic properties common in areas like North Kensington. Blown-in cellulose is a superb option for retrofitting existing wall cavities without major demolition, offering strong thermal performance and sound dampening.
In the Kensington area, professionally insulating an attic typically ranges from $1,500 to $4,000+, depending on the square footage, material chosen (fiberglass batts vs. cellulose vs. spray foam), and the existing condition. Homeowners should check for rebates from Pepco (for air sealing) and Maryland's Home Energy Loan Program (HELP), as well as federal tax credits for certain insulation materials that meet specific R-value requirements.
The ideal times are late spring (April-May) and early fall (September-October). These periods offer mild temperatures, allowing for proper installation and curing of materials like spray foam. It also allows you to prepare your home for the peak heating and cooling seasons. Scheduling in the dead of winter or height of summer is possible but may be less comfortable and in higher demand.
For standard retrofit insulation work in single-family homes, a permit is generally not required in Montgomery County. However, if the project is part of a larger renovation that involves altering the building envelope or electrical work, a permit may be necessary. A reputable local contractor will know and handle all applicable codes, including Maryland's energy conservation standards and fire-blocking requirements for certain insulation types.
In Kensington's climate, air sealing is almost always the critical first step, especially in homes built before modern energy codes. Adding insulation on top of significant air leaks is like wearing a wool sweater unzipped—drafts and moisture will still penetrate. A professional energy audit or blower door test can identify the worst leaks (often in attics, basements, and around windows/doors), which should be sealed before adding new insulation for maximum efficiency and comfort.