Why builders call us
A failed or missed test can stall your whole build.
You need your energy code compliance certificate on time, the first time.
Your time is too valuable to spend chasing subcontractors. Our technicians show up when scheduled, so your blower door and duct testing can be the easiest part of your project.
When you book online, your confirmation email includes our pre-test checklist, so your crew can finish the items that cause most failed tests before we arrive. If a house still fails, we send your crew a report and our air-sealing guides. The guides show where houses leak and how to seal each spot, so your crew can fix the leaks and we can retest quickly.
How it works
Three steps to your certificate
Book online yourself
Pick your day in our online scheduler, any time, day or night. No phone call needed. A flexible arrival window gives you the best availability. Your technician texts you when they're on the way. Your confirmation email includes our pre-test checklist. If you'd rather not book online, call or text us.
A certified tech runs the test
Our technicians test the house with calibrated equipment from The Energy Conservatory. If you have a lockbox, keypad or hidden key, no one needs to be home. A blower door test and a duct test together take about an hour in an average-sized home.
Get your certificate
Pass, and you get a paper certificate on site and a digital copy within 24 hours. If a house fails, we send a report and our air-sealing guides, so your crew knows what to seal before the retest.
Services
Energy testing to meet the Georgia energy code
Residential, multifamily and commercial projects across Metro Atlanta.
Blower door testing
Whole-house air leakage test for the Georgia energy code, ENERGY STAR and HERS.
ACH50 · CFM50Duct leakage testing
Duct pressurization testing for your energy code certificate.
CFM25Whole-building testing
Air-tightness testing for multifamily and commercial buildings, quoted per job.
Multifamily · CommercialAir barrier and insulation inspections
Pre-drywall checks that catch problems while they're still easy to fix, and insulation R-value checks.
Pre-drywallHERS ratings and green programs
HERS ratings plus ENERGY STAR, EarthCraft and National Green Building Standard verification.
HERS Index · ENERGY STAR · EarthCraftEnergy modeling and code consulting
Energy modeling and plain-language code advice so you pick the right compliance path before you build.
IECC · ModelingHomeowners: building a custom home or doing a major renovation? You can book the same blower door and duct tests online, the same way builders do.
Schedule a testWhat you can count on
A trade partner who shows up
With over 40 years of construction experience, our team knows how much you depend on reliable trade partners. Your reputation and profitability depend on it.
On-time technicians
You can count on our techs to show up when scheduled, so your build stays on schedule.
Fast scheduling
We can typically test within 48 hours of booking.
Certificate on test day
A paper certificate on site the day you pass, and a digital copy within 24 hours.
The know-how to seal the leaks
Our checklist and air-sealing guides show your crew where houses leak and how to seal each spot.
No one needs to be home
Self check-in with a lockbox, keypad or hidden key. Your access details are kept private.
Volume pricing for builders
Building several houses? Ask us about volume pricing for ongoing work.
Join the hundreds of contractors, builders and homeowners we've helped meet the energy code.
Know it before test day
Where houses leak air
A house leaks air in many places, and most of the leaks are small. Hot attic air and musty crawlspace air come into the house through them. Here are three of the main ones.
- Attic hatch or pull-down stairs
- Ducts and duct boots
- Plumbing and wire holes
That's only three. For the most common items to finish before test day, use our pre-test checklist (PDF) · En español (PDF). For how to seal each spot, get our free air-sealing guides.
Leak spot 2, up close
One small gap hurts both tests
It's the gap between the metal duct boot and the drywall, behind the grille. It's one of the main leaks we see cause a duct test to fail, and the same gap leaks on a blower door test too. Seal it with painter's caulk.
Free know-how for your crew
Give your crew the knowledge to seal the leaks
A test result is only half the job. Our checklist and air-sealing guides show your crew where houses leak and how to seal each spot. Every booking gets the checklist, and if a house fails, we send the guides right away.
Want them before your next test? Call or text (678) 653-6672 and we'll send them.
Pre-test checklist
This checklist covers blower door and duct tests. Go through it before test day to catch the items that cause most failed tests.
Sent with every booking confirmation. No sign-up needed · Download the checklist (PDF) · En español (PDF)
The Top 3 Sealing Mistakes That Cause a Failed Duct Test
Our duct guide: the 3 mistakes installers make that cause a failed duct test and how to avoid them, when to seal each part of the system, and which sealing products perform best in the field.
Free. We email it to you. We also send it when a duct test fails.
How to Pass a Blower Door Test the First Time Every Time
Our blower door guide: the 3 air barriers that have the most impact on an air-tight house, how to avoid wasting time on tedious sealing details, and which sealing products perform best in the field.
Free. We email it to you. We also send it when a blower door test fails.
Your Atlanta team
Local, certified and on schedule
You can count on our experienced team to show up on schedule, so you can get your Certificate of Occupancy on time.
Raymond Gunsauley
Founder & President
Certified HERS Rater · DET Verifier · ICC Residential Energy Inspector / Plans Examiner · IECC/HERS Compliance Specialist · ENERGY STAR Certified · EarthCraft Technical Advisor · ABAA Air Barrier Auditor · Licensed GA Residential General Contractor
Maria Avila
Chief Financial Officer
Certified HERS Rater · DET Verifier
Oliver Nunez Correa
Field Technician
RESNET HERS Rating Field Inspector · DET Verifier
Herendy Gomez
Office Manager
DET Verifier
"Working with the Atlanta Blower Door service team is fantastic. They're always on time and meeting our scheduled appointments."
Rated 5.0 out of 5 on Google, from 68 reviews. Read what our customers say about our service team, in their own words.
Service area
Metro Atlanta and 21 surrounding counties
We serve Metro Atlanta from our Marietta office. Our technicians also travel outside this area. Travel costs are quoted based on mileage.
- Barrow
- Bartow
- Butts
- Carroll
- Cherokee
- Clayton
- Cobb
- Coweta
- DeKalb
- Douglas
- Fayette
- Forsyth
- Fulton
- Gwinnett
- Henry
- Newton
- Paulding
- Rockdale
- Spalding
- Troup
- Walton
Georgia blower door rule
Under the Georgia energy code (the 2015 IECC with Georgia State Supplements and Amendments, in force since January 1, 2020), new homes need a blower door test by a certified DET verifier. The house must test at less than 5 ACH50: less than five air changes per hour at 50 Pascals.
Georgia duct leakage rule
Ducts are tested for total leakage. The limit is 6 CFM25/100 ft² or less of conditioned floor area, from one test done either at rough-in (with the air handler installed) or post-construction. No duct test is required when the ducts and the air handler are entirely inside the thermal envelope.
Is your job in our area?
Type the job's address, or just its ZIP. We measure one-way driving miles with Google Maps, the same way our office does, and we don't save what you type.
- Inside 50 miles: our normal area. No travel fee.
- 50 to 75 miles: we go there often. See the travel fee under Pricing.
- Past 75 miles: call or text us for a quote.
- Also in our normal area: . No travel fee.
The travel fee is based on one-way driving miles from our base, measured in Google Maps. The rings on the map show straight-line miles, so treat them as a guide. If the address check can't run, a ZIP code gives a close estimate, and we confirm the miles when you book.
Questions
Frequently asked questions
Do you fill out the whole certificate, including the Mechanical Summary?
No. We fill in the blower door and duct test results. The Mechanical Summary is completed by your HVAC contractor or the builder, from the HVAC contractor's Manual J. The certificate we email has fillable fields for the Mechanical Summary, so you can add it yourself.
How quickly can a technician come to test?
We're typically available within 48 hours of booking.
How much does a blower door or duct test cost?
The first test at an address is $300. Each additional test on the same day at the same property is $50. So a blower door test and a duct test on one house cost $350 together. Whole-building and commercial testing is quoted per job. Building several houses? Ask about volume pricing for builders.
How do I pay?
Zelle is the way we prefer. You can also pay by ACH bank transfer with the Pay button on your invoice, or by a check in the mail. A credit card is available only on request, with a surcharge. The surcharge is never more than what it costs us to accept the card, and we tell you the amount before you pay. Our Payment Instructions come with your booking confirmation and with your invoice. For your first job with us, we ask for payment before we release the results and the certificate. The easiest way is to pay when you book: then no one needs to be home, and we leave your certificate at the electrical panel on test day.
When will I get the test certificate?
When the house passes, you get a paper certificate on site the day of your test, and a digital copy within 24 hours. The paper copy is taped to the electrical panel, and the PDF comes by email.
What happens if the house fails?
We send you a report and our air-sealing guides. The guides show your crew where houses leak and how to seal each spot, so you know exactly what to fix before you book the retest. A retest is half the price of the tests being redone, with a $150 minimum.
Does someone need to be at the house?
No. Most tests can be done with self check-in using a lockbox, keypad or hidden key. You choose this when you book, and your access details are kept private.
How long does a blower door test take?
A blower door test and a duct test together take about an hour in an average-sized home. Large homes and multifamily buildings take longer.
Is a blower door test required in Georgia?
Yes. Under the Georgia energy code (the 2015 IECC with Georgia amendments, in force since January 1, 2020), new homes need a blower door test by a certified DET verifier, and the house must test at less than 5 ACH50. The ducts must also pass one total leakage test, at 6 CFM25/100 ft² or less of conditioned floor area, done either at rough-in (with the air handler installed) or post-construction. No duct test is required when the ducts and the air handler are entirely inside the thermal envelope.
How do I get the house ready for the test?
After you book, your confirmation email includes our pre-test checklist. Go through it before test day so nothing is missed and the house is test-ready. Questions? Call or text us at (678) 653-6672.
What is a blower door?
A blower door is a powerful fan that mounts in the frame of an exterior door. It pulls air out of the house, and outside air flows back in through every unsealed crack and opening. Gauges measure how leaky the house is, usually as air changes per hour (ACH): how many times in one hour the whole volume of air in the house leaks to the outside.
Is a duct test the same as a duct blast test?
Yes. Many builders call it a duct blast test, after the Duct Blaster, the calibrated fan from The Energy Conservatory (TEC) that we use to run it. Its official name is a duct leakage test.
Still have a question? Call or text (678) 653-6672, or tap here to start a text.
Schedule a test
Book your test online
Pick your service, day and arrival window in our online scheduler, any time, day or night. No phone call needed. You'll get a confirmation and our pre-test checklist by email.
Prefer to talk? Call or text (678) 653-6672, Monday to Friday, 8 AM to 5 PM. Tap here to start a text.
Pricing
Same prices as our online scheduler. No travel fee within 50 miles of our base. Ask about volume pricing for builders.