In Houston, air conditioning isn’t a comfort feature — it’s the system your home or business runs on for most of the year. A unit that’s undersized for the space, ductwork that was never sealed properly, or a system nobody has serviced in years all show up the same way: high bills and a house that never quite feels cool. 188 CONSTRUCTION serves Houston, TX and surrounding areas with licensed HVAC work for homes and businesses, from single repairs to full system replacement. All HVAC work is performed or supervised by an appropriately licensed technician as Texas law requires, and completed work is backed by a workmanship warranty.

Mr. Nguyen: 346-900-4000
Residential HVAC Services
Repair and maintenance
- AC and heating repair
- Seasonal maintenance and tune-ups
- Refrigerant leak detection and repair
- Thermostat repair and replacement
Installation and replacement
- Full AC and furnace system replacement
- New system installation for additions and new construction
- Mini-split and ductless system installation
- Smart thermostat installation
Ductwork
- Duct installation and replacement
- Duct sealing and insulation
- Duct redesign for room additions and layout changes
- Airflow balancing
Indoor air quality
- Air filtration system installation
- Humidity control
- Ventilation improvements
Commercial HVAC Services
A commercial HVAC failure doesn’t just mean discomfort — it can mean a closed kitchen, an unusable office, or equipment at risk. 188 CONSTRUCTION helps Houston-area businesses keep systems running and get new commercial spaces set up with HVAC sized correctly from the start.
Commercial systems and installation
- Commercial rooftop unit (RTU) installation and replacement
- Packaged and split system installation
- Ductwork design and installation for tenant build-outs
- Ventilation systems for kitchens and specialty spaces
Maintenance and repair
- Commercial HVAC maintenance contracts
- Emergency repair to minimize business downtime
- System troubleshooting and diagnostics
Tenant improvement and remodel coordination
- HVAC relocation and redesign for build-outs
- Load calculations for new or reconfigured spaces
- Coordination with electrical for new equipment circuits
Mr. Nguyen: 346-900-4000
Why HVAC Sizing Matters More in Houston Than Almost Anywhere
An AC system that’s the wrong size for the space is one of the most common — and most expensive — mistakes in Houston HVAC work. Too small, and it runs constantly without ever catching up in our summer heat and humidity. Too large, and it cools the air fast without running long enough to actually remove humidity, leaving the space feeling clammy even at the right temperature. We calculate load based on your actual space — square footage, insulation, window exposure and duct condition — rather than defaulting to “replace it with the same size” when a system fails.
Why Customers Choose 188 CONSTRUCTION
- Licensed and insured HVAC technicians for all work Texas law requires to be licensed
- Workmanship warranty on every completed job
- System sizing based on an actual load calculation, not a guess
- HVAC and ductwork planned as part of the larger project scope when tied to additions or remodels
- Coordination with permitting and inspection for work that requires it
- Both residential and commercial work, including emergency repair
Our Process
- Consultation — We discuss what’s happening — no cooling, high bills, a new install, or HVAC as part of a larger project.
- Site Visit and Assessment — We evaluate the existing system, ductwork and space before proposing work.
- Scope and Estimate — The work, equipment and pricing are put into a written scope.
- Permits — Permits and inspections are coordinated for any work that requires them.
- HVAC Work — Licensed technicians complete installation or repair according to code.
- Final Check and Closeout — We confirm the system is running correctly and close out any inspection requirements.
Mr. Nguyen: 346-900-4000
Frequently Asked Questions
How do I know if my AC unit is the wrong size for my home? Common signs include the system running almost constantly without keeping up, uneven temperatures between rooms, or the house feeling humid even when it’s cool. A load calculation during a site visit will confirm whether sizing is actually the issue.
Do you offer emergency AC repair? For no-cooling calls, especially in peak summer, we prioritize response — call us directly and we’ll assess how quickly we can get to your property.
Is HVAC installation always permitted? Full system replacements and new installations generally require a permit and inspection. Routine repairs and maintenance usually don’t. We’ll confirm what applies to your specific job.
Can you coordinate HVAC with an addition or remodel? Yes — adding square footage or changing a layout often means the existing system and ductwork need to be resized or rerouted, which we plan for as part of the overall project rather than treating HVAC as an afterthought.
Service Area
188 CONSTRUCTION serves Houston, TX and surrounding areas, including Katy, Sugar Land, Pearland, The Woodlands, Cypress, Spring and Missouri City, subject to project type, travel distance and scheduling.
New HVAC equipment often needs a dedicated electrical circuit. See our electrical services Houston for panel and circuit work coordinated alongside your HVAC installation.
Request a Free Estimate
Dealing with a system that’s not keeping up, or planning an HVAC upgrade in Houston? Let 188 CONSTRUCTION take a look and give you a clear, written plan.
Discuss your project with Mr. Nguyen at 346-900-4000



















