Request Service
An AC Pro branded furnace unit installed in an attic with ductwork connected on both sides
Heating

Heating Installation Services For San Marcos Homes

Take control of your comfort when you upgrade your heater.

Service Scheduler

How can we help you today?

If submitted after hours or weekends, please note it is best to call.
Repair
Maintenance
Estimate
Other

As Low As $2 Per Day

For a new furnace installation.

Don’t Settle For Spotty Heating — Upgrade Your Furnace Today!

Upgrade Your Comfort With Professional Heater Installation

Most days, living in San Marcos means enjoying mild afternoons and sunny skies — but when winter settles in, it’s not unusual for overnight temperatures to dip, especially in higher elevations like San Elijo Hills or Twin Oaks Valley. And if your home sits in a shaded area or sees little afternoon sun, those chilly mornings tend to linger.

When your heating system isn’t working properly — or worse, when you don’t have one at all — the discomfort is impossible to ignore. Cold air creeps into your living spaces and simple tasks like getting out of your cozy bed or relaxing in the evening become much harder.

That’s why Oasis Plumbing, Heating & Air Conditioning offers professional heater installation services for homeowners across San Marcos, CA. Whether you’re upgrading an aging furnace, adding heat to a new build or looking for a more energy-efficient option, we’re here to help you choose the right system and install it with precision.

Indoor HVAC furnace and water heater system setup with insulated ductwork and piping

Choose The Right Heater Replacement For Your Home

At Oasis, we specialize in helping homeowners find heating solutions that match their lifestyle, home layout and budget.

We offer several types of heating units tailored to the San Marcos climate. Gas furnaces deliver reliable heating throughout the entire home. Similarly, heat pumps offer an energy-efficient option that heats and cools — perfect for San Marcos’ mild climate. Electric heaters provide a straightforward alternative for homes without access to natural gas.

Oasis technicians assess your home’s size, insulation and existing HVAC components to recommend the best fit.

Signs You Need A New Heater

Heating systems are built to last — but like any appliance, they don’t last forever. If your current heater is struggling to keep your home warm or showing signs of wear, it may be time to consider an upgrade.

Here are some of the most common signs it’s time for a heating system replacement:

  • Rising energy bills — Older heaters often lose efficiency, causing your monthly costs to increase.
  • Uneven heating — Cold spots or rooms that won’t warm up can indicate a system that’s no longer keeping up.
  • Frequent repairs — If repair calls are becoming a regular occurrence, a new system may be more cost-effective.
  • Loud or unusual noises — Grinding, banging or rattling sounds can signal serious internal issues.
  • System age — Most heaters last 15–20 years. If yours is approaching that range, replacement is worth considering.

Replacing an outdated heating system not only improves comfort—it can also save you money over time through better energy efficiency.

Professional Furnace Installation Is A Call Away

Heating systems are complex, and professional installation is key to protecting your investment. Proper installation ensures:

  • Correct system sizing for your home
  • Safe connections for gas and electrical components
  • Optimal energy efficiency
  • Compliance with local building codes
  • Long-term system performance

Improper installation can bring uneven heating, higher energy bills, safety risks and premature system failure. At Oasis, our furnace installers are committed to doing the job right the first time so you can enjoy comfort without worry.

What To Expect From Our Heater Installation Process

When you work with Oasis Plumbing, Heating & Air Conditioning, you can expect a smooth and straightforward installation process from start to finish. Our team will:

  1. Evaluate your home and perform necessary load calculations
  2. Recommend the best heating system for your needs
  3. Provide a clear, detailed estimate
  4. Professionally install your new heater
  5. Test and verify system performance
  6. Answer all your questions and walk you through system operation

We take pride in treating every home like our own — with respect, care and attention to detail.

Schedule Your Furnace Replacement In San Marcos, CA

For years, Oasis Plumbing, Heating & Air Conditioning has provided reliable solutions to homeowners across San Marcos. From hillside homes in Discovery Hills to family neighborhoods near Walnut Grove Park, we understand the local climate and the comfort needs of our community.

If your home is ready for a new heating system, our team is here to help. Contact us today to schedule a consultation and get started with professional heater installation in San Marcos, CA. We’ll help you find the right solution to keep your home warm, comfortable and energy efficient for years to come.

Need HVAC or Plumbing Help?

Request Service Today

  • MM slash DD slash YYYY
  • This field is hidden when viewing the form
  • This field is for validation purposes and should be left unchanged.