Compare the highest-rated insulation professionals in Rockville, Maryland. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly specialized contractor focusing on comprehensive attic services, including insulation, air sealing, and ventilation. They are known for their detailed energy audits and expertise in creating high-performance building envelopes. Their strong focus on science-based solutions and customer education makes them a top choice.
Part of a national brand with a strong local franchise, Koala Insulation offers a wide range of residential and commercial insulation services. They are praised for their professionalism, clear communication, and expertise in both new installations and removal/replacement of old insulation. They emphasize eco-friendly and sustainable insulation options.
A local company with a strong focus on whole-home energy efficiency and comfort. They go beyond just insulation to address the root causes of energy loss, offering integrated solutions that include air sealing, insulation, and HVAC consulting. They are well-versed in local utility rebates and building science.
** The insulation market in Rockville, Maryland, is robust and competitive, driven by the city's mix of older housing stock and new, energy-conscious construction. The quality of providers is generally high, with a significant number of contractors holding advanced certifications like BPI (Building Performance Institute) and RESNET, which is essential for performing the energy audits required to access utility rebates from companies like Pepco. **Competition Level:** High. Homeowners have a wide selection of contractors, ranging from large national chains to specialized local experts. This competition generally benefits the consumer in terms of service quality and pricing transparency. **Typical Pricing:** Pricing is moderate to high, reflecting the skilled labor and high-quality materials required. As a general guide: * **Blown-In Cellulose/Fiberglass:** $1.50 - $3.00 per square foot. * **Spray Foam Insulation:** $2.00 - $5.00+ per board foot (significantly more expensive but offers superior R-value and air sealing). * **Air Sealing Services:** $500 - $2,000+, often bundled with insulation projects. The market strongly favors contractors who can offer a comprehensive "house-as-a-system" approach, combining air sealing with insulation upgrades to maximize energy savings and comfort, rather than just performing basic material installation.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Rockville regulations and climate
Get answers to common questions about insulation services in Rockville, Maryland.
For Rockville's humid summers and cold winters, spray foam insulation is often recommended for its superior air-sealing and high R-value per inch, which is critical for energy efficiency. However, blown-in cellulose or fiberglass in attics is a highly effective and cost-efficient choice for many existing homes. A professional assessment is key, as the best type depends on your home's specific construction, existing insulation, and areas needing treatment, like basements which are prone to moisture.
Costs in Rockville vary widely based on material, home size, and project scope, but homeowners can expect to invest between $1,500 to $4,500 for a standard attic insulation project. Spray foam is more expensive upfront ($2.00-$4.00 per board foot) but offers long-term energy savings. It's important to get multiple itemized quotes from local contractors, and remember that Maryland's Home Performance with ENERGY STAR program may offer rebates that offset costs.
In Rockville (Montgomery County), a permit is generally required when insulation is part of a larger renovation or new construction. For retrofit insulation projects in existing homes, a permit may not be needed if you're not altering the structure, but fire-blocking and clearance around heat sources like chimneys and recessed lights must comply with the International Residential Code (IRC). A reputable local installer will know and adhere to all county codes and safety standards.
While insulation can be installed year-round, the ideal times are late spring (April-May) and early fall (September-October). These periods typically offer mild, dry weather in Rockville, which is important for certain materials like spray foam that have specific temperature and humidity application requirements. Scheduling during these off-peak seasons can also lead to better contractor availability and potentially more flexible scheduling.
Always choose a licensed, insured contractor with specific experience in insulation. Verify they hold a Maryland Home Improvement Commission (MHIC) license, which is required for work over $500. Ask for local references in Rockville or nearby communities like Gaithersburg or Bethesda, and check reviews on platforms like BBB. A trustworthy provider will perform a thorough energy audit or assessment before giving a quote and should clearly explain the benefits and specifications of their recommended materials.