
01
Framing stage
We are on a multi-family job long before the drywall goes up. Sleeves, chases and set points get resolved against the frame, because the cheapest time to move a line is while you can still see it.
Priority Design & Service · Selma, Texas · TACLB018551E
Family owned, licensed, and still answering our own phone. Matt Carson has run this shop since 1999, and a good part of our work still comes from people who called us the first time twenty years ago.
Heating
Thirteen points, and a carbon monoxide test at the end of every one.
Heat exchanger checked for cracks, burner compartment vacuumed, gas leaks, flue pipe, ignition, limits and manifold pressure. South Texas furnaces run little and sit long, which is exactly why the fall visit matters.
13 published checks
Cooling
Fifteen points, because a dirty coil quietly costs you capacity.
Refrigerant charge and operating pressures, superheat and sub-cooling, compressor windings, contactor points, capacitors, condensate. Small parts fail first and take the expensive ones with them, and a coil in poor condition robs the system of capacity you already paid for.
15 published checks
Read both lists in fullMulti-family, start to finish
Scrub through a job the way it actually happens. Frame, vertical build, plant set, unit, handover.
Three lines of work
A house in Schertz, a tenant space off Loop 1604 and a five storey apartment build are not the same problem. We keep them separate on purpose.

01
Repairs, spring and fall check-ups, service agreements and full system replacement for houses across San Antonio and the northeast corridor. Fifteen points on the cooling visit, thirteen on the heating visit, and we publish both lists in full.
Residential details
Our own yard, Selma
We are not a dispatch brand routing your call to whoever is nearest. Priority Design & Service has run out of the same shop on Jordan Road since we opened, under Texas license TACLB018551E, and the technician who turns up works here.
“I have personally known and worked with the owner, Mr. Matt Carson, since 2006 and in that time have found him to be extremely knowledgeable in all aspects of his business. Mr. Carson has assisted in everything from redesign to value engineering to resolving code issues, and from the bid phase through construction to warranty, Mr. Carson has always been prompt and performed exceptionally. Priority Design & Service has contracted with Crane Contracting Group, ltd. for both completed projects and projects in progress for an excess of 2600 multi-family units.”
Rated 5.0 from 9 Google reviews
“We have been working with Matt at Priority Design and Service for 30+ years and have never been disappointed. When our twenty year old air conditioning unit recently broke down, Matt carefully reviewed all of our options. His knowledge and honesty made it easy for us to make an informed decision.”
“Thank you thank you to Matt from Priority Design and Service. He made a same day call and showed up exactly when he said he would. He was so professional and thorough, checking every detail in trying to figure out our AC problem.”
“We’ve been using priority design for many many years. Top-notch very thorough explains everything high-quality the best.”
Two more reviews and three signed letters from the construction firms we work for are on the reviews page.
Before you call

Selma, San Antonio, Schertz, Cibolo, New Braunfels
Authorized Armstrong Air and Goodman dealer. We sell, service and repair all major brands, and fixed rate financing through Service Finance Co. LLC is there if a replacement lands at a bad time.