Drone Building Envelope Thermal Survey
A thermal survey does not measure how much energy a building wastes. It shows you where the envelope is behaving differently from how it was designed to — which is the question a retrofit budget actually needs answered.
- Free to post
- No commission on the job
- Part 107 certified pilots
118 inspection pilots ready to quoteAcross 37 states & regions
Every elevation, including the ones nobody scans
Ground-level thermography reaches the first two storeys and the parts you can stand back from. Upper floors, setbacks, parapets and roof interfaces — where thermal bridging concentrates — are routinely the least surveyed and the most revealing.
Whole-building patterns
Individual cold spots matter less than the pattern across a facade. A whole-elevation capture shows whether a problem is one flat, one riser or the entire west face, and that distinction is what decides the scope of work.
Targets a retrofit budget
The point of the survey is prioritisation. Money spent on the elevation that is actually failing beats money spread evenly across a building, and this is the cheapest way to tell the two apart.
Free to post
Posting and receiving quotes costs nothing, and SkyLog takes no commission and adds no markup. You pay the pilot you hire, at the price the two of you agree.
What this settles
- Finds missing, slumped or displaced insulation as distinct patches, often following the construction.
- Quantifies thermal bridging at slab edges, balconies, lintels and junctions before you decide what a retrofit can achieve.
- Shows air leakage around openings and penetrations as plumes rather than patches.
- Picks up failed glazing units and degraded frames across a whole elevation at once.
What it does not
- Measure heat loss in watts. Any report presenting it as an energy figure has stopped describing the measurement.
- See through glass. A window shows its own surface, not the room behind it.
- Read highly reflective cladding or low-emissivity coatings, which mostly reflect the sky.
- Separate a cold patch caused by missing insulation from one caused by moisture, air movement or a duct, without corroboration.
This is a heating-season, night-time survey needing a sustained temperature difference, dry surfaces and low wind. Flown outside those conditions it produces images that look convincing and mean very little.
How it works
Three steps, no account needed to start, and nothing to pay at any point in it.
- 1
Describe the job
The form opens with this page's answers already filled in — service, deliverable, site access. Add the location and anything specific to your site.
- 2
Pilots quote it
Every pilot whose service area and services match is notified. You get itemised quotes back with their credentials, kit and sample work attached.
- 3
Compare and hire
Pick on price, proximity or portfolio, and pay the pilot directly. SkyLog takes no cut and adds no markup to what you agree.
Pilots who list thermal work
Real published profiles. Open any one to see credentials, kit, service area and sample work before you post.
chris aldridge
Texas, United States
20 work samples
I’m a commercial drone pilot providing aerial mapping, property line overlays, topographic mapping, construction site data, radiometric thermal inspections, 3D modeling, real estate listing photography and video, property marketing, and professional aerial imagery for businesses and landowners.
Real estateWeddingEventInspectionMapping / surveyFilm / TVConstructionOther
Andy Jones
California, United States
12 work samples
FAA Part 107 Certified Remote Pilot based in Southern California, specializing in construction documentation, infrastructure inspections, mapping, orthomosaics, and aerial imagery. With more than two decades of experience managing complex federal construction projects, I understand the importance of accuracy, safety, and delivering actionable data—not just photos. I operate professional DJI Enterprise aircraft, including the DJI Matrice 4E, DJI Matrice 4T, as well as the DJI Air 3S for high-resolution imaging and the DJI Neo 2 for specialized close-range operations. My services include construction progress documentation, roof and property inspections, land development, infrastructure photography, photogrammetry, mapping, and custom aerial imaging. I also conduct search operations for lost pets using aerial search techniques and thermal imaging. Every mission is conducted in compliance with FAA regulations, with careful mission planning, clear communication, and a commitment to delivering high-quality results on schedule. Whether you need a single inspection or recurring project documentation, my goal is to provide reliable aerial data you can confidently use to make decisions.
Real estateEventInspectionMapping / surveyConstructionAgricultureOtherFilm / TVWedding
Casey Jones
Arizona, United States
9 work samples
FAA Part 107 commercial drone pilot specializing in RTK mapping, aerial photography, thermal imaging, property documentation, construction progress, and detailed site capture. I operate professional DJI aircraft including the Matrice 4E and Matrice 4T, with RTK capability for repeatable, high-quality data collection. I approach each assignment as a complete mission, from airspace and site planning through safe flight operations, field verification, data handling, and final delivery. I serve clients throughout the California, Nevada, and Arizona tri-state region and am available for both individual assignments and multi-site projects.
Real estateEventMapping / surveyConstructionAgricultureOtherInspection
Charles Wright
Texas, United States
7 work samples
Licensed pilot 2/2025 real estate mapping thermal
Real estateInspectionMapping / survey- George Benes
Oregon, United States
13 work samples
I've been a Part 107 drone pilot since 2019, working with Pacific Northwest clients on Real estate, construction progress, mapping, telecom inspections, architectural photography and events. I am very flexible and can provide deliverables within 24 - 48 hours. I take great pride in my work and having a photography business, my delivered photos are edited and culled to the best of the best. I worked for 30+ years as a commercial construction Superintendent, managing multi-million dollar construction projects and this experience allows me to be very safety oriented and knowledgeable on construction sites, providing the construction companies with usable deliverables that they can share with all stakeholders involved in their building project.
Real estateEventInspectionMapping / surveyConstruction 
George Colonna
Maryland, United States
12 work samples
Started flying drones for General Dynamics Robotics Systems in 2009 as the subject matter expert and lead test engineer for RCTA and a program called the Soldier Machine Interface. We developed leader/follower code for up-armored autonomous assets a full decade before Google fielded their driverless car "train" and a UI that let soldiers/marines plan missions on the ground and in the air. My job was to ensure the software worked, more importantly, met customer requirements. Working in the field afforded me a wealth of experience regarding process and implementation, but also how to think critically and resolve issues on the fly. If interested in learning more about my credentials, please see my website. My current fleet is primarily DJI and Autel. I have RTK capability and a complete field kit to sustain remote operations for several days.
InspectionMapping / surveyConstructionOtherFilm / TV
Inspection pilots by state
The conditions this needs, and why they are strict
Thermography of an envelope depends on a temperature difference across it, so it wants a genuine gap between inside and out — a rule of thumb is at least ten degrees Celsius, sustained for several hours before the survey rather than achieved an hour beforehand. It wants the building heated and occupied as normal. It wants dry surfaces, because rain equalises everything, and low wind, because wind strips away the surface differences the method reads. And it wants darkness, or at least several hours after sunset, so that solar loading from the day has dissipated — a wall in late afternoon is showing you where the sun was, not where the insulation is not. In practice this makes it a heating-season, night-time survey in most climates, and a survey booked outside those conditions will produce images that look convincing and mean very little.
What it finds
Missing, slumped or displaced insulation, which typically reads as a distinct patch or a pattern following the construction. Thermal bridging at slab edges, balconies, lintels, columns and junctions — a design characteristic rather than a defect, but one worth quantifying before deciding what a retrofit can realistically achieve. Air leakage around openings, service penetrations and at junctions, which shows as plumes rather than patches and is much clearer when the building is under slight pressure difference. Failed glazing units and degraded frames. And on some buildings, the outline of the structure itself showing through the facade, which tells you how much of the heat loss is fabric and how much is detail.
What it cannot tell you
It does not measure heat loss in watts, and any report presenting it as an energy figure has stopped describing the measurement. It reads surface temperature and nothing behind the surface, so it infers rather than observes. It cannot see through glass — a window shows its own surface, not the room. Highly reflective cladding and low-emissivity coatings are difficult and sometimes unreadable, because they mostly reflect the sky rather than radiate their own temperature. And it cannot distinguish a cold patch caused by missing insulation from one caused by moisture, air movement or a duct without something else to corroborate it. The honest deliverable is a prioritised map of anomalies with likely causes, not a verdict.
Who should interpret it
For a survey whose output is a spending decision, the interpretation matters more than the capture, and they are separate skills. A pilot with a good payload can produce technically correct radiometric imagery; reading it against the building's construction, occupancy and heating pattern is thermography. Ask for Level I or Level II thermography certification where the report will be relied on, ask who is writing the interpretation, and ask for the radiometric files themselves so a third party — your energy assessor, a designer, a contractor pricing the work — can re-examine the data rather than accepting a set of coloured pictures.
Common questions
When can the survey be flown?
In the heating season, at night or several hours after sunset, in dry and still conditions, with the building heated and a sustained temperature difference of roughly ten degrees Celsius or more across the envelope. Outside those conditions the images are not diagnostic, whatever they look like.
Does it measure how much energy we are losing?
No. It shows where the envelope behaves differently from its surroundings. Quantifying loss needs a different exercise — modelling, metering or a blower-door test — and a report that converts thermal images into an energy figure is going well beyond what the data supports.
How much does it cost?
It scales with building size and the number of elevations, and with how much interpretation is included. Inspection quotes on SkyLog have ranged $100 to about $1,550 with a $300 median from 13 quotes across all inspection types; an interpreted envelope survey on a large building sits above that. Post the building for real numbers.
Is aerial better than a ground-level thermal survey?
It is better at coverage — upper floors, setbacks and roof interfaces that nobody can stand back from. A ground survey gets closer and can be combined with internal inspection and a blower-door test on the same visit. On a tall building the useful combination is usually both.
Do we need to do anything to the building first?
Heat it normally and keep it heated through the day before the survey — a building brought up to temperature an hour beforehand has not yet developed the differences the survey reads. Keep windows shut. Say if any area is unoccupied or unheated, because it will read as a fault otherwise.
Will this satisfy a grant or certification requirement?
Only if the scheme says so, and schemes differ on who must carry out the assessment and what evidence counts. Check the requirement before commissioning, and if a certified assessor must sign it, say so when you post.
Related drone services
Post your thermal envelope survey free
Give the building size, the number of elevations and what the survey is for. Pilots with radiometric payloads quote directly.
- No commission, ever
- Part 107 certified pilots
- No obligation to hire
Prices and guidance on this page were last reviewed .