Weatherization
About Our Weathertization Services at Shepherd Energy
Professional Air Sealing
Air leakage is one of the largest contributors to energy waste. Many homes lose 20–40% of their conditioned air through hidden gaps and penetrations.
Our Air Sealing Services Include:
Sealing attic penetrations (pipes, wiring, duct chases)
Weatherstripping attic access panels
Rim joist air sealing
Crawlspace air barrier improvements
Top plate and soffit sealing
Targeted whole-home air sealing
By reducing uncontrolled airflow, we help:
Lower heating and cooling costs
Improve indoor comfort
Reduce dust and allergens
Minimize moisture intrusion
Air sealing is often the most cost-effective energy upgrade available.
Attic Sealing Upgrades
Your attic is one of the most important components of your building envelope. Inadequate insulation allows heat to escape in winter and enter in summer.
We Install:
Blown-in cellulose insulation
Fiberglass blown insulation
Batt insulation (when applicable)
Insulation upgrades to meet or exceed R-49 standards (climate dependent)
Proper attic insulation helps:
Stabilize indoor temperatures
Reduce HVAC strain
Improve home resale value
Increase overall energy efficiency
When combined with air sealing, attic insulation delivers maximum performance.
Crawl Space & Basement Insulation
Uninsulated crawlspaces can cause:
Cold floors
Moisture buildup
Mold risk
Energy loss
Our crawlspace weatherization services include:
Floor insulation
Vapor barrier installation (when applicable)
Air sealing at rim joists
Thermal boundary corrections
By improving this lower portion of the building envelope, we create a healthier and more energy-efficient home.
Building Envelope Corrections
Many homes suffer from disconnected or incomplete thermal boundaries. We evaluate and correct:
Missing insulation transitions
Gaps between conditioned and unconditioned spaces
Mechanical penetrations
Access panel deficiencies
Our approach ensures your entire envelope works as a system, not just isolated upgrades.
Why Weatheritization Matters
Weatherization is not cosmetic. It is structural performance improvement.
Benefits include:
Lower monthly utility costs
Improved indoor air quality
Enhanced year-round comfort
Reduced carbon footprint
Longer HVAC system lifespan
Increased home durability
Instead of simply replacing equipment, weatherization fixes the root cause of inefficiency.
Why Weatheritization Matters
1. Home Energy Assessment
We evaluate insulation levels, air leakage points, and building envelope performance.
2. Data-Driven Recommendations
We provide clear findings and prioritized improvements.
3. Professional Installation
Our trained technicians implement air sealing and insulation upgrades according to industry standards.
4. Post-Work Verification
We ensure improvements meet performance expectations.
Who we serve
We provide residential weatherization services throughout Maryland, helping:
Homeowners
Real estate clients
Property managers
Buyers seeking pre-purchase energy clarity
Whether you live in an older home with limited insulation or a newer home with comfort issues, building envelope improvements can make a measurable difference.
Schedule Your Free Energy Assessment Today
Take the next step toward a more comfortable, efficient home with guidance on the right assessment and available programs.