Serving North Hollywood, CA and surrounding areas
Approved
In business since 1988
Free estimates
Warranties offered
"The service I received from Air-Tech was above my expectations. Alex made the selection process effortless and the installation was fast and efficient. The folks with Air-Tech are real pros."
+8
Serving North Hollywood, CA and surrounding areas
Approved
In business since 1961
Free estimates
Emergency services offered
Kahn Air Conditioning, Inc., has 57 year of expertise in HVAC. When your looking for dependable service know that we got it. Our team provides options for replacement of your old unit when the time comes, let a pro help find the best system for your needs. Our full service approach will allow you to service and maintain your unit for maximum efficiency year round. Call Kahn Air Conditioning, Inc., today for your professional consultation.
+48
Serving North Hollywood, CA and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"The company is top notch professional from the minute we met them. From the contract negotiations, delivery of materials and instillation, they were amazing. The installers gave us good advice about where we thought the unit might go to be placed in a more efficient noise cancelling area. I recommend this company to anyone who has air conditioning needs."
+14
Serving North Hollywood, CA and surrounding areas
Approved
In business since 1967
Free estimates
Emergency services offered
"Arrived on time and fixed the problem. A bit more expensive than I would have liked but checking around probably not much more than elsewhere and our air conditioner was fixed same day in the middle of a heat wave."
+10
Serving North Hollywood, CA and surrounding areas
Approved
In business since 1992
Emergency services offered
Warranties offered
"Simply put, Robs amazing. Years and years of HVAC experience ooze from this honest and caring guy. Did my install and then some for a more than fair price instead of what the other Angi pros wanted. He’s now my go to guy for any and all AC & Heating issues. Oh and he showed up exactly at the time he told me he would. Amazing"
Serving North Hollywood, CA and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"I had my ducts cleaned and sanitized and the service was absolutely perfect. The technician was on time, professional, and explained everything clearly. The difference in air quality is noticeable right away ? the system feels fresher and runs smoother. They took their time, did a thorough job, and left everything spotless. I?m extremely satisfied and highly recommend their duct cleaning and sanitizing service to anyone who wants real quality work."
Serving North Hollywood, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.\n\nm-f 7-5pm
Serving North Hollywood, CA and surrounding areas
Approved (Corporate)
In business since 1947
Free estimates
Credit card accepted
"Repair of my air conditioning"
+2
Serving North Hollywood, CA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"I highly recommend Belle Air Services. They are very knowledgeable in the HVAC world and was able to figure out a creative way to get us the set up we wanted. They did a great job. Kenny was our main point of contact, and he is great!"
Serving North Hollywood, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1985
Free estimates
Credit card accepted
"Tim with Efficiency Air out of Ventura, Ca was great. I selected Efficiency Air after receiving three bids. Tim personally bid the job and followed with a second visit when I informed him of my decision to award the bid. Tim was on-site during the entire installatIon. He and his crew replaced my heating and air conditioning units plus new ductwork in less than one day. I was very impressed with his approach to planning the job and executing every aspect efficiently. I would definitely recommend Tim Mitchell to anyone."
+50
A standard blower door test takes between 30 minutes and one hour to complete. The process involves setting up specialized equipment in your doorway, running the fan to create pressure differences, and taking measurements throughout your home. Additional services like thermal imaging or detailed leak detection will extend this timeframe. The technician will also spend time explaining the results and making recommendations based on their findings.
Preparation involves turning off all combustion appliances, such as gas furnaces and water heaters, for safety. Secure all exterior doors and windows, but leave interior doors open to allow airflow throughout the house. Close fireplace dampers and cover any ashes to prevent them from being drawn into living spaces. Clear access to potential inspection areas like attics and crawlspaces, and inform everyone in the household about the test to prevent accidental door openings during the process.
Older homes often benefit most from blower door testing because they have more air leakage points than newer construction. The test can pinpoint specific areas where relatively inexpensive improvements will yield significant energy savings.
Many homeowners of vintage properties report noticeable reductions in drafts and more consistent indoor temperatures after addressing issues identified during testing. The potential utility savings often recover the testing cost within a reasonable timeframe.
New construction must meet increasingly stringent energy codes that specify maximum allowable air leakage rates. Meeting these standards requires careful attention to air sealing details during construction.
Success depends largely on properly installing air barriers, thoroughly sealing around penetrations, and quality control throughout the building process. While achieving code compliance is challenging, builders who implement systematic air sealing protocols succeed in meeting required standards.
It's best to schedule a follow-up test after completing all recommended air sealing and insulation work. This allows you to verify the effectiveness of your improvements as a complete package. Allow sufficient time for all sealing materials to cure properly—often a few weeks after completion. The verification test provides documentation of your home's improved performance and confirms you've addressed the issues identified in the initial assessment.
From average costs to expert advice, get all the answers you need to get your job done.
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