Air leakage is responsible for a significant portion of heating and cooling energy loss in Southern California homes — often as much as the insulation deficiencies themselves. Gaps around recessed lights, plumbing and electrical penetrations, framing connections, and attic access hatches allow conditioned air to escape and unconditioned air to infiltrate, reducing the effectiveness of even well-insulated homes. At Wise Choice Remodeling (CSLB #1104186), we identify and seal air leakage points as a standalone service or in combination with insulation installation for maximum energy performance improvement.
Signs Your Home Has Significant Air Leakage
Air leakage symptoms are often subtle but show up in several ways:
- Drafts near electrical outlets on exterior walls
- Attic access hatch that feels warm in summer or cold in winter
- Rooms that are difficult to keep at a consistent temperature
- Dust accumulation near ceiling light fixtures
- High energy bills despite adequate insulation levels
- Musty or outdoor air smells in certain rooms
Air sealing is particularly effective when combined with insulation installation. Sealing before insulating ensures the insulation performs to its full rated value.
Air Sealing Services We Provide
We seal air leakage points throughout your home’s thermal envelope.
Attic Air Sealing
The attic floor is the primary air leakage plane in most homes. We seal gaps around recessed lights, plumbing and electrical penetrations, top plates, and other air leakage points before insulation is installed or as a standalone service.
Attic Hatch Sealing
Attic access hatches are one of the most significant air leakage points in a home. We add weatherstripping and insulation to attic hatches to eliminate the heat loss or gain through this direct opening to the unconditioned attic.
Recessed Light Sealing
Old-style recessed lights are direct air connections between the living space and the attic. We install airtight covers over recessed lights from the attic side to eliminate this major leakage source.
Wall Penetration Sealing
Gaps around plumbing, electrical, and HVAC penetrations through exterior walls and top plates are sealed with appropriate materials to eliminate air infiltration.
Common Air Leakage Points and Their Impact
Understanding where air leaks in a typical home helps prioritize sealing efforts.
| Location | Typical Share of Air Leakage | Sealing Method | Difficulty |
|---|---|---|---|
| Attic floor penetrations | 25-40% | Caulk, foam, airtight covers | Moderate |
| Recessed lights | 10-20% | Airtight covers from attic | Low to moderate |
| Wall outlets and switches | 5-10% | Foam gaskets | Low |
| Attic hatch | 5-15% | Weatherstripping, insulation | Low |
| Plumbing penetrations | 5-10% | Caulk or foam | Low to moderate |
Our Air Sealing Process
Air Leakage Assessment
We inspect the attic and accessible areas to identify the primary air leakage points in your home’s thermal envelope.
Sealing Plan and Estimate
We provide a written plan and estimate before any work begins. No vague line items, no surprise charges.
Air Sealing
We seal identified leakage points using appropriate materials for each location — caulk, foam, weatherstripping, and airtight covers as appropriate.
Insulation Coordination
When air sealing is done in combination with insulation installation, sealing is completed before insulation is installed to ensure maximum performance of both.
Get a Free Air Sealing Estimate
Ready to reduce air leakage and improve your home’s energy performance? Contact Wise Choice Remodeling to schedule your free assessment. We will identify your home’s primary air leakage points and give you a clear written quote for sealing them.
How Long Does Air Sealing Take?
Most air sealing projects are completed in a single day. When combined with insulation installation, they are typically completed together in one to two days. We give you a clear timeline during the estimate phase.
Air Sealing Cost — What to Expect
Standalone air sealing costs vary based on your home’s size and the number of leakage points identified. Combined air sealing and insulation projects are more cost-effective than addressing them separately.
We provide detailed written estimates at no charge based on your specific home assessment.
Why Choose Wise Choice for Air Sealing
Licensed and Insured
We carry full general liability and workers compensation coverage.
Comprehensive Assessment
We identify all significant air leakage points before beginning work so the sealing effort addresses the actual sources of leakage in your home.
Combined with Insulation
When air sealing is done alongside insulation installation, we coordinate both in a single efficient project.
Workmanship Guarantee
We stand behind our air sealing work. If issues arise, we come back and address them.
No Unknown Subcontractors
Your air sealing is completed by our experienced crew from start to finish.
Air Sealing Services Across Southern California
Wise Choice Remodeling provides professional air sealing services to homeowners across Southern California. We serve Los Angeles County, Riverside County, San Bernardino County, Orange County, San Diego County, and the Palm Desert area. Our licensed crew delivers the same level of care and quality on every job regardless of location.
Air Sealing
Questions Answered
Air sealing should always be done before adding insulation. Sealing first ensures the insulation above it is not bypassed by air moving through gaps. Installing insulation over unsealed penetrations reduces its effective performance significantly.
Common indicators include drafts near outlets on exterior walls, an attic hatch that is warm to the touch in summer, and rooms that are difficult to keep comfortable despite adequate insulation. A professional assessment identifies the primary leakage locations.
A properly sealed home needs controlled ventilation to maintain good indoor air quality. Most modern HVAC systems provide adequate fresh air exchange. We assess your ventilation situation as part of our air sealing evaluation.
Accessible locations like outlet gaskets and attic hatches can be addressed as DIY projects. Attic floor penetrations, recessed light sealing, and top plate sealing are more involved and are typically more effective when done professionally.
Yes. Air sealing is often included in utility rebate programs alongside insulation installation. We advise on applicable programs during your estimate.
Yes. Wise Choice Remodeling holds CSLB License #1104186 and carries full general liability and workers compensation coverage.