Central Air Conditioning Installation in Greater Houston
Ready to upgrade your home’s cooling? LMH Services installs new central AC systems sized correctly for your home and your climate. We handle equipment selection, ductwork evaluation, professional installation, and startup testing — so your cooling works efficiently from day one.
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What Sets Our AC Installation Apart
Proper System Sizing from the Start
Many installations fail because the equipment is oversized or undersized. We calculate your home’s cooling load using industry-standard methods — accounting for square footage, insulation, window orientation, and climate factors. Correct sizing means the system runs efficiently without short-cycling (turning on and off too frequently), which wastes energy and creates temperature swings.
Ductwork Evaluation & Optimization
A new AC unit is only as good as the ducts delivering its air. We evaluate your existing ductwork for leaks, blockages, and proper sizing. If ductwork is undersized or has significant leaks, we seal or upgrade it so the new system performs at its rated efficiency. Many homes get new AC units but never fix their ductwork — a missed opportunity for true comfort and savings.
Armstrong Equipment with a 1-Year Labor Warranty
We install Armstrong air conditioners backed by the manufacturer’s parts warranty, and every installation carries LMH Services’ 1-year labor warranty. Want coverage beyond the first year? We offer extended parts-and-labor plans through JB Warranties — no deductible, all brands, transferable at no charge. We provide all documentation so your coverage is registered from day one.
Complete Professional Installation to Code
Our technicians pull permits, follow all local electrical and mechanical codes, run comprehensive startup tests, and document everything. Installation includes refrigerant charging to exact specifications, airflow balancing through ducts, thermostat programming, and a full system cycle test under load before we leave. You won’t discover problems weeks later — we catch and fix them during installation.
Transparent Pricing & Options
We discuss your equipment options, efficiency ratings, financing possibilities, and maintenance plans before installation. No surprises, no high-pressure sales, just honest recommendations based on your home and budget.
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What Houston-Area Homeowners Say
Our AC Installation Process
From the first cooling-load calculation to the final walkthrough, every step is documented and done to code — so your new system performs from day one.
We visit your home to assess its cooling needs comprehensively. We measure total square footage, evaluate insulation levels in the attic and walls, inspect window types and orientation (how many south-facing or west-facing windows contribute solar heat gain?), check existing ductwork condition and layout, and discuss your comfort preferences (do you want zoning? Smart thermostats with app control?).
Using this information, we calculate your home’s cooling load in BTUs (British Thermal Units) — the amount of cooling power needed to maintain your desired temperature on the hottest days. This calculation is critical because sizing is the most important installation variable:
- Undersized System: A unit too small won’t cool your home to 75°F on 100°F days. You’ll have complaints that the AC “doesn’t work,” when really it’s inadequate for your home’s needs. An undersized system also runs continuously without ever reaching setpoint — wasting energy and wearing out prematurely.
- Oversized System: A unit too large cycles on and off frequently (short-cycling), which wastes energy, creates temperature swings, and fails to dehumidify properly. Houston’s humidity is a problem even when cooling — oversized systems cool quickly but turn off before they’ve removed humidity, leaving you with cold but clammy air.
We size equipment to match your load exactly using industry-standard Manual J calculations, not rule-of-thumb guesses that damage efficiency. The result: comfortable, efficient cooling all summer long.
We present equipment options with different efficiency ratings (SEER 14, SEER 16, SEER 18+), explaining the long-term costs and benefits of each tier:
- SEER 14 systems are entry-level but less efficient. Over 15 years, higher cooling bills offset the lower purchase price.
- SEER 16–17 systems hit the efficiency sweet spot — better than baseline, significant energy savings, and reasonable cost premium.
- SEER 18+ systems are premium, using cutting-edge efficiency technology. They cost more upfront but deliver maximum energy savings if you plan to stay in your home 15+ years.
We calculate payback periods for each tier using your current home’s electric usage, so you understand the financial impact of choosing efficiency level.
We also discuss thermostat options: standard non-programmable (basic but simple), programmable (set different temperatures for different times/days), or smart (app-controlled from anywhere, learning your preferences, integrating with other smart home systems). Smart thermostats are increasingly popular and often pay for themselves through energy savings.
We explain financing programs available through Wisetack so you understand payment options — whether you prefer financing through a lender or paying cash. We answer questions about monthly payments, interest rates, and warranty implications.
Once you approve equipment, thermostat, and financing, we order the system and schedule installation at a time convenient for your family.
Before the installation date, we prepare your home for the new system. We evaluate your existing ductwork in the attic, crawl space, or basement — a critical step many installers skip. We check for:
- Duct Leaks — Holes, gaps, and poorly sealed connections can lose 20–30% of your cooled air. We seal leaks with mastic (special sealant) or metallic tape to ensure airflow reaches your rooms, not your walls.
- Undersizing — If ducts are too small, they restrict airflow and reduce cooling capacity. Sometimes duct replacement is necessary; sometimes expanding ducts makes sense. We evaluate costs and benefits.
- Blockages or Restrictions — Collapsed ducts, nests, or debris reduce efficiency. We clear blockages and verify smooth airflow.
- Insulation on Return Ducts — Cold-air return ducts in hot spaces (attics, garages) can sweat and develop condensation if uninsulated. We ensure proper insulation to prevent moisture problems.
If ductwork needs work, we perform sealing or upgrades to ensure your new AC system’s efficiency isn’t compromised by poor duct conditions. Skipping this step is a common installation mistake that wastes hundreds of dollars in energy over the system’s 15–20 year life. When you’re investing in a new, efficient AC unit, you want that efficiency to reach every room — not leak away into your walls.
Our maintenance plans also include ductwork monitoring, so we catch future duct problems early.
We install the outdoor condenser unit on a concrete pad beside your home, with proper clearance for airflow. We run electrical service from your panel, install the disconnect switch (for safety), and run refrigerant lines to your indoor air handler or furnace.
We install the indoor coil (evaporator) in your air handler or furnace cabinet, ensuring it’s properly secured and that condensation drains correctly. We verify all electrical connections are tight and properly sized.
All work follows local electrical codes and manufacturer installation guidelines. We don’t cut corners or take shortcuts that void warranty.
Once the system is physically installed, we charge the refrigerant to exact specifications. Wrong refrigerant charge (too much or too little) is a common failure point — systems either don’t cool or work inefficiently. We measure charge using superheat and subcooling methods (not guesswork), and we document the charge level for future service reference.
We run the system through a complete cooling cycle: thermostat calls for cooling, the compressor starts, the indoor fan circulates, and cold air flows through ducts. We measure outlet temperature and verify that the system reaches the target temperature setpoint. We test both low and high fan speeds to ensure proper operation.
With the system running, we balance airflow through your ducts. We check that vents in every room are delivering cool air — living rooms, bedrooms, kitchens. If airflow is uneven (some rooms cool, others not), we adjust dampers or add grilles to balance distribution.
We also verify that your thermostat is reading room temperature accurately. We program your thermostat with your preferred temperature setpoint, fan settings (auto or continuous), and any scheduling features you want.
Before we leave, we explain how your new system operates: how to adjust the thermostat, what to expect seasonally, how to maintain the system (filter changes, when to schedule maintenance), and what warranty coverage includes. We provide all documentation — equipment spec sheets, installation records, warranty information, and thermostat instructions.
We also discuss your maintenance plan options to keep your new system running efficiently and catch problems early before they become expensive failures.
Ready to Install a New AC System?
Upgrading to efficient, reliable cooling is one of the best investments in your home’s comfort. Contact us for a consultation, equipment proposal, or to schedule your installation.
Financing Your New AC System
A new central air conditioning system is a smart long-term investment — and it shouldn’t strain your budget. LMH Services partners with Wisetack for flexible financing, so you can install the efficient, properly-sized system your home needs and pay over time.
Financing Benefits
LMH Services has partnered with Wisetack to give you more ways to pay. Wisetack lets you check your options in seconds with no impact to your credit score, and offers simple monthly payment plans without the financial stress.
Keep Your System Running Strong with a Maintenance Plan
Protect your new AC investment. A maintenance plan from LMH Services keeps your system efficient, extends its 15–20 year lifespan, and catches small issues before they become costly failures — for both Deer Park homes and businesses across the greater Houston area.
Our Maintenance Plans Include
24 Hour Service Available
Plan members get priority access to our 24/7 emergency service line
Prompt, Local Service
We are locally operated in Deer Park and respond quickly
Expert Technicians & Installers
Thorough inspections that catch small issues before they become expensive repairs
Residential & Commercial
Plans tailored to homeowners and business owners alike
AC Installation Across Greater Houston
LMH Services installs new central air conditioning systems throughout the greater Houston area from our home base in Deer Park, TX. Wherever you are in our service area, you get the same proper sizing, ductwork evaluation, and warranty-backed workmanship.
Serving Communities Around:
Not Sure If We Service Your Area?
Chances are we can help! We’ve served the southern Houston area for a while, so please call 832-800-4564 or contact us today to see if we come out to your area.
AC Installation Questions Homeowners Ask
A typical central AC installation takes 1–2 days, depending on system size and whether ductwork needs upgrades. Day one involves equipment installation, refrigerant charging, and electrical work. Day two is ductwork balancing, thermostat programming, and testing. We coordinate the timeline with you in advance.
A “ton” is cooling capacity (12,000 BTUs per ton). A 3-ton system cools 36,000 BTUs per hour. SEER (Seasonal Energy Efficiency Ratio) measures efficiency — how much cooling you get per unit of electricity. A SEER 14 system is less efficient than SEER 18. You want a system sized correctly in tonnage and then choose the highest SEER rating your budget allows.
Not always. If your existing ducts are in good condition, properly sized, and not leaky, you can reuse them. We evaluate your ducts during the assessment. If they’re leaky or undersized, sealing or upgrading them is cheaper than replacing the entire ductwork system — and it’s worth the investment because good ducts ensure your new system performs at its rated efficiency.
Sometimes. Modern high-efficiency AC units often use less electrical current than older systems, so older electrical service might be sufficient. We assess your electrical panel and breaker capacity during the consultation. If an upgrade is needed, we coordinate that work with your electrician.
Then you have two options: install ductwork (expensive and disruptive) or install a ductless mini-split system. We help you evaluate both approaches. Sometimes a ductless system is cheaper and less invasive; sometimes ductwork installation makes sense if you want whole-home cooling. We present both options and costs.
AC installation costs depend on system size, equipment efficiency, ductwork conditions, and whether electrical upgrades are needed. Typical central AC installations range from moderate to significant investments. We provide a detailed quote after our home assessment so you know the cost before we proceed. Financing is available to make the investment affordable.
We verify cooling performance before we finish the installation. If the system isn’t cooling to spec, we diagnose and fix the problem immediately — whether it’s a charge issue, ductwork problem, or equipment defect. Our work is warranted, so we stand behind every installation.
Yes. We pull all required permits, complete electrical and mechanical inspections, and ensure your installation is documented and registered with local authorities. Permits protect you and the integrity of your home’s systems.
Maybe. Modern AC systems are compatible with many older thermostats, but if your thermostat is very old or if you want smart/programmable features, a new thermostat is recommended. We discuss thermostat options during the consultation.
Your Armstrong equipment is covered by the manufacturer’s parts warranty (we help you register it), and our installation work is covered by LMH Services’ 1-year labor warranty. For protection beyond the first year, we offer extended parts-and-labor plans through JB Warranties — no deductible, all brands, and transferable to a new owner at no charge. We provide all documentation so you understand exactly what is covered.
Get Professional AC Installation in Greater Houston
We size every system to your home’s actual cooling load with industry-standard Manual J calculations — never rule-of-thumb guesses. Correctly-sized equipment runs efficiently, dehumidifies properly, and lasts its full 15–20 year life.
We install Armstrong air conditioners backed by the manufacturer’s parts warranty and our own 1-year labor warranty, pull all permits, and complete every inspection. Extended parts-and-labor protection is available through JB Warranties, and we hand you the documentation so your coverage is registered and protected.
A new AC unit is only as good as the ducts delivering its air. We evaluate, seal, and upgrade your ductwork during installation so the system’s rated efficiency actually reaches every room instead of leaking into your walls.
Upgrading to efficient, reliable cooling shouldn’t strain your budget. We partner with Wisetack for flexible financing, and our maintenance plans keep your new system running efficiently for years.
Before we leave, we show you how your new system operates, what to expect seasonally, and how to maintain it — with all documentation in hand. If you’re ready to upgrade your home’s cooling, contact us today.