Two technicians moving an old furnace out on a hand truck

Furnace and Heating Replacement in Poway, CA

We assess the system you have, tell you whether a repair still makes sense, and put the replacement options in writing with the price. If the furnace has just stopped and you need to know why, start with Furnace and Heating Repair.

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What do you need help with?

Which system is involved?

How soon should we come out?

Where should George call you?

C-20 license #911659

Licensed, bonded & insured

Serving San Diego County since 2003

4.9 rating, 300+ reviews

600+ permitted projects

Signs It May Be Time to Replace Your Furnace

Six things worth having checked. None of them decides on its own.

The furnace is in the fifteen to twenty year range

Age by itself settles nothing. It is the point where parts availability and repair frequency are worth looking at together.

Repairs are coming one after another

One repair is a repair. Three across two winters is a pattern, and it is worth pricing against a replacement.

A major component has failed

A heat exchanger, a gas valve, or a blower motor. Price that repair, then look at what the rest of the furnace has left in it.

Parts are getting difficult to source

Whether your model is still supported decides how long repairing it stays an option.

The house heats unevenly, or the furnace is louder than it used to be

Worth checking whether it was oversized when it went in. Replacement is the point where that gets corrected.

The gas bill climbed with no change in how you use the heat

Repair or Replace Your Furnace?

We are on your side on this one. Most heating faults we go out to are worth repairing, and when that is the case we repair it and say so. Here is how we compare the two paths on the same criteria.

What we look atRepair usually winsReplacement usually wins
Cost and scope of the repairA single component, priced well below a new systemA heat exchanger or a combination of large parts
Condition of the whole systemThe rest of the furnace is soundSeveral components are at the end of their service life
Parts availabilityParts are current and stockedParts are discontinued or slow to source
Repair historyFirst real faultRepairs in consecutive winters
SafetyCombustion tests cleanThe heat exchanger has cracked

One local point that changes the arithmetic here: light use is not gentle use. A furnace in Poway sits idle for ten months and then fails from sitting, so the parts that go are igniters, flame sensors, and switches. Those repairs are small. Replacing early rarely pays for itself in fuel savings, because you are not burning much fuel. That cuts both ways, and we will tell you which way yours cuts.

If a repair is the better call, that starts on our Furnace and Heating Repair page.

Choosing and Sizing the Next System

San Diego does not need the furnace a contractor would install in Denver. Oversizing is the default mistake here, and you pay for it in short cycling, in noise, and in a system that wears itself out heating a house that was already warm. We calculate the load for the house as it stands today. The capacity printed on the furnace coming out is a record of an earlier guess, not a measurement.

What we look at: the layout and the rooms being heated, the insulation and the windows, the existing ducts and the airflow they can carry, the venting, the gas supply, and the electrical.

Cutaway illustration of a standard efficiency gas furnace with its metal flue, gas line, and ductwork

Standard efficiency gas furnace

The direct replacement for most homes here. It uses the existing venting and the existing gas line, which keeps the scope of the project contained.

Cutaway illustration of a condensing gas furnace with PVC vent pipes and a condensate drain

Condensing, high efficiency gas furnace

It costs more up front and needs new venting, because it produces condensate and cooler exhaust. In a heating season this short the payback often does not work, and we say so.

Cutaway illustration of a home with an electric heat pump: an outdoor unit, an indoor air handler, and ductwork for cooling and heating

Heat pump

One system for heating and cooling, with no combustion and no gas. This is the only one of the three where rebates are real, and it is worth pricing if you are replacing the air conditioner in the same period. More on our Heat Pump Replacement page.

How Furnace Replacement Works

Two technicians installing a new furnace in a garage
  1. 1

    Assessment of the system you have

    We look at the furnace, the venting, the ducts, the gas supply, and the electrical, and we test combustion on the existing system before we talk about replacing it.

  2. 2

    Repair and replacement options

    Where both paths are reasonable, you get both, priced, with the difference explained.

  3. 3

    Written proposal

    The equipment, the removal of the old furnace, the connections and modifications included, the price, the schedule, and anything priced as an option. Nothing starts until you approve it.

  4. 4

    Removal and installation

    We take the old furnace out and haul it away, install the new one to the agreed scope, and make the gas, venting, electrical, and duct connections. Permits and testing are scheduled with the work.

  5. 5

    Commissioning and walkthrough

    We start the system, test combustion and the full heating sequence, clean up, show you the controls, and hand over the documents.

What Does Furnace Replacement Cost?

We price replacements after seeing the house, so the number on your proposal is the price of your project.

What affects the price

  • Equipment type and capacity, and whether you go standard or condensing efficiency.
  • Venting. A condensing furnace cannot reuse the old flue, so new venting is part of the scope.
  • Ductwork. Sealing, resizing, or new runs where airflow is the limiting factor.
  • Gas supply and electrical at the equipment.
  • Access. Attic and closet installations take longer than a garage unit.
  • Whether the air conditioner is being replaced in the same project, which changes the scope in both directions.

One thing worth knowing before you compare quotes: there are almost no rebates on gas furnaces. If rebates matter to your budget, the category where they are real is heat pumps.

Once we have seen the property, we put together a written proposal

  • The equipment we selected
  • Removal of the old furnace
  • Connections and the work included
  • The schedule

Total price

Every line goes in writing, with options priced separately.

Request a Replacement Estimate
George with the GVK Heating and Air service team and company van

Why Homeowners Choose GVK for Furnace Replacement

Repair first when a repair is reasonable

We assess the existing furnace before we quote a new one, and we test combustion either way.

Sized for this climate, not copied off the old label

Oversizing is the standard mistake in San Diego. We calculate the load for the house you have.

Honest efficiency arithmetic

Where a condensing furnace will not earn back what it costs in a heating season this short, we say so.

A written scope and price before work starts

Equipment, removal, connections, price, schedule, and anything optional priced on its own.

Permits and testing handled as part of the project

A furnace changeout in California needs a permit and, in most cases, HERS verification. 600+ permitted projects under our license are on public record.

What Furnace Replacement Looks Like

Furnace Replacement Reviews

Serving All of San Diego County

We are based in Poway and work across all of San Diego County: repairs, replacements, maintenance, and tune-ups.

  • Poway
  • Rancho Bernardo
  • 4S Ranch
  • Carmel Mountain
  • Sabre Springs
  • Rancho Penasquitos
  • Scripps Ranch
  • Mira Mesa
  • Escondido
  • Ramona
  • San Marcos
  • Rancho Santa Fe
  • Carmel Valley
  • Del Mar
  • Solana Beach
  • Encinitas
  • Carlsbad
  • Oceanside
  • La Jolla
  • Valley Center
  • Santee
  • Lakeside
  • El Cajon
  • La Mesa
  • Chula Vista

Furnace Replacement FAQ

Still have questions?

(619) 277-6279

Call or text · Monday – Saturday, 9 AM – 5 PM

Get a Free Estimate
When is a repair smarter than replacing?

When the fault is one component, the rest of the furnace is sound, parts are available, and combustion tests clean. That describes most of the heating calls we go out on. We bring both prices to the same visit so you can see the difference for yourself.

Can I replace the furnace and keep the air conditioner?

Usually yes, and often that is the right scope. The two systems share the blower, the ducts, and the thermostat, so we check that the new furnace matches the airflow your existing coil needs. Where they cannot be matched, we explain why before quoting.

How is the size of the new furnace chosen?

We calculate the heating load for your house: the square footage, the insulation, the windows, the duct capacity, and the climate you actually live in. We do not copy the capacity off the old unit, because oversizing is the most common mistake in this county.

How long does a furnace replacement take?

A straight changeout in an accessible location is usually a one day job. New venting for a condensing furnace, duct changes, or electrical work extend it. Your proposal gives you the schedule before anything starts.

What happens to the old furnace?

We remove it and haul it away, and that is in the written scope and in the price. If any related components stay in place, the proposal says which ones and why.

Do I need a permit or HERS testing?

A permit applies to the changeout itself. HERS verification applies to the parts an inspector cannot see finished, such as duct leakage, and it is done by an independent rater, not by us. We tell you which of the two your project needs, who files them, and when they are scheduled against the install date.

Should I switch to a heat pump instead?

It is worth pricing, particularly if the air conditioner is also near the end of its life, because one system then covers both jobs. Heat pumps are also the only category here where rebates are genuinely available. Whether it suits your house depends on the ducts and on your electrical panel capacity, and we check both before recommending it.

Discuss Your Furnace Replacement Options

Tell us what the furnace is doing and how long you have had it. We will assess it, tell you whether a repair still makes sense, and give you a written proposal with the equipment, the scope, and the price.

Call or text(619) 277-6279 Emailgvkhvac@yahoo.com
HoursMonday – Saturday, 9 AM – 5 PM
Office13459 Olive Tree Ln., Poway, CA 92064