Air sealing services in Lancaster CA - fewer drafts and rooms that hold their temperature
Drafty rooms, a hot upstairs or a climbing power bill usually trace back to gaps above your ceiling. We close them first, safely.
What does air sealing actually fix in a Lancaster house?
Air sealing services in Lancaster, CA close the cracks, holes and open joints in the ceiling between your rooms and the attic, so attic air stops leaking into the house and the heating and cooling you pay for stays where you want it. The sealing is done before any new insulation goes in, because insulation slows heat but doesn't stop air that's moving through a gap.
Most calls start with a drafty hallway, a hot upstairs, the room over the garage that never feels right, or a power bill that keeps climbing even though there's already insulation up there. The price mostly turns on how many gaps there are and how big they are, how easy the attic is to move around in, whether old insulation has to come out first and whether you're adding insulation in the same project, and the schedule turns on those same things plus anything that has to be fixed before we seal. Your written estimate puts your own figure on it and lists those fixes, so you know what you're paying for before we start.
- Fully licensed and insured.
- Free in-person estimates.
- We reply within 1 business day.
What air sealing work looks like
How we handle air sealing, step by step
Before we seal anything, we look at your furnace, water heater and any fireplace and how each one vents, because a tighter house changes how they draw air, and we talk with you about whether fresh air needs to be added once the house is sealed. Up in the attic we check for old knob and tube wiring, vermiculite, roof leaks and bath fans that blow into the attic, since those get dealt with before anything is covered. Then our crew blocks the big holes and open soffits with solid material, puts metal blocking and collars around hot flues because caulk and foam don't belong against them, seals the smaller openings around pipes and wires, and weatherstrips the frame of your attic hatch or pull-down stairs. Soffit, ridge and gable vents and any combustion air ducts are open on purpose, so we seal around them and leave them clear for the attic to breathe. If insulation is part of the job, it goes in last, over a ceiling that's already sealed.
Air sealing often travels with other work. If the cold floors are coming from below, basement insulation is the matching job down there. Closed-cell foam insulation, a dense foam that also blocks moisture, seals air and insulates at the same time, but it costs more, so in most attics I'd rather seal the gaps and top up the loose fill. The exception is when your ductwork lives up there, and then foam usually earns its price.
Why Lancaster homeowners call Balanced Lancaster Insulation Company for air sealing
Commercial habits, brought home
I spent my early years on office buildings and warehouses, where every stage got checked before anything was closed in, and I started this business in Lancaster in 2013 to work that way on houses. That's why the sealing gets looked at before insulation covers it up.
The person who saw your attic
I come out for the estimate myself, and a longtime crew lead runs the work with our installers while I check in. What I noted up there doesn't get lost between the visit and the job.
Ask any crew about licensing
California's contractors board sets out its own license category for crews who install insulation, so it's fair to ask anyone you're considering about theirs. We're fully licensed and insured.
California's limit on down payments
The state's contractors board limits a down payment to $1,000 or 10 percent of the contract price, whichever is less, and later payments are listed in the contract and tied to work done or materials delivered. I'd rather you know that before you sign with anyone, us included.
On this job, the order matters most. When you're ready, send us a message or call (661) 952-4049, and tell us where your attic hatch is, what in the house burns gas or wood, and whether you're planning new insulation.
Get a written estimate for sealing your attic
Send the form and we'll reply within one business day to set up a time. I'll come look at your attic in person for a free estimate, and there's no obligation to book anything.
- Fully licensed and insured.
- Free in-person estimates.
- We reply within 1 business day.
What happens after you call us about air sealing?
Call or send a message
Call (661) 952-4049 or use the form, and we get back to you to set up a visit. It helps to know where your attic hatch is and which appliances run on gas.
I look at the space
I come out myself, check the attic, crawl space or walls and note anything that has to be fixed first. You get a written estimate that spells out what we'll seal and what it costs, so nothing about the price is a surprise later.
Our crew seals, then insulates
Once you're ready, my crew lead runs the job with our installers, and every gap gets sealed before any insulation goes in. I check in while the work is underway.
Walk the finished attic together
When we're done, I walk the finished work with you and show you what got sealed and what was left open on purpose. Satisfaction guaranteed on every job.
Air sealing questions from Lancaster homeowners
How much does air sealing with insulation cost near Lancaster?
In the Los Angeles area, blown-in insulation, the loose fill blown through a hose, paired with air sealing usually costs about $1,200 to $5,800 per job, depending on whether the sealing covers only the obvious gaps or the whole attic. That's the going rate in the area, not our price. Where your house falls depends on its size and what needs doing first, and your written estimate gives you the number.
Is air sealing safe in a home with a gas furnace or fireplace?
Yes, as long as the venting is checked first, and working out how fuel-burning appliances vent and how much fresh air the house needs is considered an essential step before any sealing starts. Once the leaks are closed, mechanical ventilation, a fan setup that brings in fresh air, may need to be added. Ask about it at the estimate so it's part of the plan from the start.
Should I seal my attic before or after adding insulation?
Before. Air sealing is finished first, because once new insulation is down the gaps under it are buried and much harder to reach. If you're planning attic insulation, book both as one project and we'll seal first.
Can I get air sealing at no cost in Lancaster?
Some Lancaster residents can, through Lancaster Energy's Equitable Building Decarbonization Program, which offers no-cost home upgrades to qualifying City of Lancaster residents to improve energy efficiency and indoor air quality. The county says it covers work on the shell of the house, like insulation and air sealing, plus any cleanup the job needs. Eligibility and sign-up go through Lancaster Energy, so check with them first.
How do I know if my recessed lights need covers when the attic is sealed?
Some recessed can lights get a cover placed over them on the attic side, but not every one does, so ask at the estimate which of yours will. I'll point out each one when I'm up there and list them on the estimate.
How do I check that air sealing actually worked?
Ask whether your job includes a blower door test, a fan set in a doorway that measures how leaky the house is, run before and after the sealing. A national building-performance certification has required those before-and-after tests of its certified professionals, at least in an older version of its rules, so it's a fair question to ask anyone you hire.
Insulation work in nearby cities
Work that often goes with air sealing
Basement insulation
When the chill is in the floors rather than the ceiling, insulating below the house deals with the other end of the problem.
Closed-cell foam insulation
If your ducts run through the attic, dense foam that seals and insulates in one layer can be worth the higher cost.