Frequently Asked Questions

Yes — completely free for homeowners. We don't charge you anything to use the cost estimator or to be matched with a local contractor. We are compensated separately through our relationships with contractors in our network, not through fees to you.

No. We are a contractor referral and information service. We do not employ HVAC technicians, perform any HVAC work, or set prices. Our role is to help you connect with a qualified local contractor and to provide general cost information through our estimator tool.

We review your request and identify local, licensed contractors in your area who handle the type of service you need. We pass your contact information to the contractor(s), and they will reach out to you — typically within 24–48 hours — to discuss the job and schedule a visit or provide a quote. You are under no obligation to hire anyone.

We currently serve homeowners in Las Cruces, Mesilla, White Sands, Organ, Doña Ana, and University Park — and the broader Doña Ana County area in Southern New Mexico. If you're unsure whether your location is covered, submit a request and we'll let you know.

AC units are sized in "tons" — one ton equals 12,000 BTU/hr of cooling capacity. The standard starting point is 25 BTU per square foot of conditioned living space. So a 1,600 sq ft home needs roughly 40,000 BTU/hr, or about a 3.5-ton unit. However, this is a rough estimate. Actual sizing should account for insulation quality, ceiling height, window area, local climate design temperatures, and attic conditions. A licensed contractor performs a Manual J load calculation to determine the precise size. Our calculator gives you a ballpark — always have a pro confirm before you buy.

Both scenarios cause real problems. An oversized unit will "short cycle" — it cools air so quickly that it shuts off before removing enough humidity, leaving your home feeling clammy. It also wears out the compressor faster due to frequent start-stops. An undersized unit will run continuously, struggle to reach your set temperature on hot days (Las Cruces regularly hits 100°F+), and drive up your electric bill. Proper sizing is one of the most important factors in HVAC performance and longevity.

Manual J (ACCA Manual J) is the industry-standard residential load calculation protocol used by HVAC professionals to determine the exact heating and cooling requirements for a specific home. It takes into account square footage, insulation R-values, window types and orientations, air infiltration, local climate data, and number of occupants. It's the most accurate way to size an HVAC system. Any reputable contractor should perform one before recommending a system size.

For a standard central split air conditioning system (unit + installation labor), costs in the Las Cruces area generally range from around $3,500 to $8,500+ depending on system size, brand and SEER efficiency rating, whether ductwork needs to be replaced, and installation complexity. Higher-efficiency systems (18+ SEER) cost more upfront but save money on electricity long-term. Use our calculator for a rough estimate based on your square footage, then get quotes from at least two licensed contractors.

Gas furnace installation in the Las Cruces area typically runs between $2,500 and $6,000 for a standard residential unit including labor. Heat pump systems (which provide both heating and cooling) generally range from $4,000 to $9,000+ installed, depending on capacity and efficiency. Prices vary by brand, efficiency rating, and whether any ductwork or electrical work is needed. Always get multiple quotes.

A common rule of thumb: if the repair cost exceeds 50% of the cost of a new system, and the unit is more than 10 years old, replacement is usually the better investment. HVAC systems typically last 15–20 years with proper maintenance. Older systems are also significantly less efficient — a new unit can use 30–50% less electricity than a 15-year-old unit. A qualified contractor can help you weigh the options. Our calculator can give you a rough sense of what a new system would cost.

Yes, there are several potential sources of savings. The federal Inflation Reduction Act (IRA) provides tax credits for energy-efficient HVAC upgrades including heat pumps and high-efficiency central AC. El Paso Electric (which serves the Las Cruces area) has periodically offered rebates for qualifying high-efficiency equipment. Additionally, some HVAC manufacturers offer rebates on specific models. Ask your contractor about current rebates when getting quotes, as programs change frequently.

Most HVAC professionals recommend at least one tune-up per year. For homes in Las Cruces where AC runs heavily from May through September, having the cooling system inspected in spring (before the heat arrives) makes sense. If you also use a furnace, a second tune-up in fall for the heating system is recommended. Regular maintenance extends equipment life, keeps efficiency high, and helps catch small problems before they become expensive failures.

In Las Cruces, desert dust and frequent wind events mean filters get dirty faster than in most other climates. A general guideline is every 1–3 months for standard 1-inch filters. If you have pets, allergies, or your system runs heavily during summer, check monthly. A clogged filter is one of the leading causes of HVAC system strain and premature failure — and it's the cheapest maintenance item you can stay on top of.

Several common causes: (1) The system is undersized for the home or the outdoor temp. On a 105°F day in Las Cruces, even a properly sized system may struggle to maintain 72°F. (2) Low refrigerant — a refrigerant leak reduces cooling capacity significantly. (3) Dirty evaporator or condenser coils reduce heat transfer efficiency. (4) The air filter is clogged, restricting airflow. (5) Duct leaks or poor duct insulation in hot attics. A technician can diagnose which issue affects your system.

Central air conditioners typically last 15–20 years with regular maintenance. Gas furnaces can last 20–30 years. Heat pumps generally fall in the 15–20 year range. Systems in Las Cruces may experience slightly shorter AC lifespans due to the heavy cooling loads placed on units during long, hot summers — your system may run 6–8 months out of the year. Annual maintenance is especially important in this climate to maximize equipment life.