A warmer home starts with the right measurements. We calculate your heating needs and recommend furnace options that fit your home and budget.
Heat loss: Damaged or missing insulation lets heat escape into the attic or crawlspace. Your furnace may run longer and use more gas to maintain the temperature.
Reduced airflow: If the duct itself is torn, disconnected, or crushed, less warm air may reach the rooms served by that duct or branch.
Pest access: Openings in the duct can give rodents access to the duct system. Torn insulation alone doesn’t necessarily create a path into your home.
We check both the insulation and the duct underneath before recommending repairs.
Each room needs a different amount of warm air based on its size, windows, insulation, and heating requirements. The ducts supplying it must deliver that airflow.
A distant living room may need more airflow than a bedroom near the furnace. If the duct system doesn’t account for those differences—and resistance along the way—nearby rooms can overheat while farther rooms stay chilly.
We calculate each room’s heating and airflow needs, then assess duct sizes and layout to recommend improvements.
A proper load calculation considers:
East- and west-facing windows affect solar heat gain, especially cooling needs. We account for orientation when evaluating year-round comfort.
Your comfort advisor provides a written report of our findings, recommended improvements, and suitable equipment options.
You’ll also receive an itemized installation estimate explaining the proposed work and costs—so you can compare your options before deciding.
Know what to replace, what to improve, and what you can keep. We assess your heating needs, ductwork and comfort concerns, then explain suitable furnace options and installation costs. Your written plan is yours to keep, with no obligation to hire us.
Replacing a furnace is a chance to improve how your home heats. Plug-In Services assesses the equipment, heating load, ducts and comfort concerns before recommending a replacement. You receive a written installation scope and suitable equipment options, so you can compare what you are getting before you decide.
For an attic installation, a closet furnace or a home with rooms that never feel warm, access and airflow matter as much as the equipment brand. We explain which existing components can remain and where venting, return-air or thermostat changes are needed.
The final scope depends on your home. Additional work outside the agreed scope requires an approved written change order.
A safe furnace with an isolated fault may be worth repairing. Repeated failures, major repair costs and unresolved comfort problems make a replacement comparison worthwhile.
We weigh the diagnosis, equipment condition, remaining warranty and the complete installed cost. A furnace’s age alone does not decide the answer.
Compare furnace repair versus replacement →Based in Capitola, we serve homeowners in Santa Cruz County, including Aptos, Capitola, Watsonville, Soquel and Scotts Valley. Contact our team to confirm installation scheduling in Monterey Bay, Hollister or Gilroy.
Permit requirements follow your property's city or county jurisdiction. We confirm the requirements for your address and explain the coordination and testing included in your estimate.
For this home on Village Circle in Santa Cruz, the homeowner wanted to replace an aging attic furnace. Our proposed scope included code-compliant installation work, a larger return-air connection and a new thermostat. The three furnace options below were quoted for this home's requirements.
Standard Efficiency
$4,878
GR9S800403AN 40,000 BTU/h input • 80% AFUE Single-stage heating 9-speed ECM blower Manufacturer limited warranty: 10-year parts; 20-year heat exchanger, plus one replacement in years 21–99 for eligible owners.
Bryant Standard Efficiency
$5,982
800SB36045M14 45,000 BTU/h nominal • 80% AFUE Single-stage heating 18-speed ECM blower QuieTech noise reduction Manufacturer limited warranty: 10-year parts; 20-year heat exchanger. Eligibility requirements apply.
High Efficiency
$8,230
987TA48060C17 60,000 BTU/h input • up to 97% AFUE Two-stage heating Variable-speed ECM blower Manufacturer limited warranty: 10-year parts; lifetime heat exchanger for eligible original owners.
Permit, inspection & required testingQuoted for your project
For this home on Village Circle in Santa Cruz, the homeowner wanted to replace an aging attic furnace. Our proposed scope included code-compliant installation work, a larger return-air connection and a new thermostat. The three furnace options below were quoted for this home's requirements.
We check airflow and duct connections, then identify any changes in your plan.
We check venting and gas connections, then test combustion and carbon monoxide.
We test heating, airflow and thermostat operation before handoff.
For this home on Village Circle in Santa Cruz, the homeowner wanted to replace an aging attic furnace. Our proposed scope included code-compliant installation work, a larger return-air connection and a new thermostat. The three furnace options below were quoted for this home's requirements.
Problems solved
Enlarging the return duct to improve airflow and reduce restrictions.
Replacing corroded venting for safe exhaust gas removal.
Insulating existing plenums to reduce heat loss and improve efficiency.
Keeping the working AC coil to avoid unnecessary replacement costs.
Updating gas connections and safety components to meet current codes.
Compare Bryant, American Standard, Goodman and Mitsubishi Electric with Plug-In Services. We also install Coleman, Bosch, Ameristar, Daikin, Fujitsu, Hisense, Williams, WeatherMaker. We recommend equipment that fits your home's heating needs, cooling needs, ductwork and budget.
Our dealer portfolio covers several system types; not every brand supplies every type of equipment. Your written estimate identifies the proposed model, installation work and warranty terms.
Request a free installation estimate · Choose “HVAC installation/replacement — FREE estimate.”
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Matt and Alex are great! We had them come service our dryer twice after it started smoking. For some reason lint accumulation is bad on our dryer. (My daughter is constantly doing laundry, like daily) We will definitely call them back again for any repairs that come up!
I've used them a couple of times now for multiple appliance services and a ducting service. Fantastic company. Very knowledgeable, honest, thorough and polite. I highly recommend.
Outstanding service, messaged back less than 5 minutes after my inquiry, was able to come out that afternoon on OUR schedule, and diagnosed the issue which didn't require parts replacement. Very friendly and efficient, will definitely use again,
Knowledgeable, multi skilled in HVAC, appliance repair, and electrical. Fixed by central heater rather than trying to sell me a replacement for $8-9K. The heater is operating like new. Gave me a reasonable estimate for zoning my house and redo wrapping my flume. I will higher him again.
Matt is great. We had him help us with our HVAC system, overhead lighting, and broken washing machine. In each case he did solid work. Importantly, he worked with us to find the most sensible solution. Some contractors will leave you out of the decisions but not Matt. He will help you find the right solution to fix the problem!
Matt did a great job repairing my dryer! Beth responded to my request, and scheduled me right away. I am very satisfied and will use their services for any appliance repair in the future!
My oven mysteriously turned on by itself a few times today. Stressful! And strange! Vlad was able to fix my thermostat, and I am so grateful Plug-in Services was able to address my concerns so quickly. Thank you!
"Honest, efficient and fairly priced — Matt diagnosed our AC and both thermostats within half an hour and had everything fixed the same day. Got a next-day appointment when other companies were scheduling weeks out. Highly recommend.
Matt replaced our dishwasher pump and fixed a noise issue on our washing machine — all in one visit. Within half an hour the washer was running so quietly it felt brand new. Thank you Matt!
Matt is so awesome! We had an issue in May and he came and did the work rather quickly and gave us a year warranty on his work. He came back quickly and didn't take payment. Not to mention, his cost is very fair. He will forever be our tech
Our furnace installation prices start at $4,878, including equipment, labor, materials, removal of the old furnace, and necessary code-compliant installation work within the agreed scope.
Here are real pricing examples based on a project on Village Circle in Santa Cruz in September 2026 with updated pricing for selected options:
Your written estimate identifies any required permit coordination, inspections, energy-code testing, duct modifications or venting changes. The final scope and price depend on your home.
Our prices include the agreed installation work, not just the furnace itself. Each homeowner receives a written estimate identifying what's included before installation begins.
Repair a safe furnace when an isolated fault can be corrected at a reasonable cost. Compare replacement when major repairs, repeated failures or persistent comfort problems make continued investment less practical. Age alone does not decide the answer.
We compare the diagnosed fault, available parts, remaining warranty, repair history, heating performance and the complete installed cost of a replacement. A modest igniter repair and a major heat-exchanger repair deserve different decisions.
Unsafe equipment must remain off until a qualified professional has corrected the problem. We explain the findings and your options before you approve work.
Read our furnace repair versus replacement guide for Santa Cruz homeowners for a side-by-side comparison.
After you approve your estimate online, Sarah, our dispatcher, calls you to arrange a convenient installation date.
When we coordinate permitting, installation is typically scheduled about one week after approval. If our schedule and permit requirements allow, we may be able to install your furnace within two days.
We don't require deposits from residential customers.
You pay after the agreed installation is completed and your new heating system is working.
Our home assessment typically takes about two hours. We don't simply look at the size of your old furnace and recommend another one.
We measure your home and ductwork, calculate heating requirements, and determine how much airflow individual rooms need. We also consider insulation, windows, ceiling heights, and existing comfort problems.
For example, a bedroom that stays cold may have insufficient airflow rather than need a larger furnace.
You'll receive suitable equipment recommendations and written installation options, with no obligation to buy.
A typical furnace installation involves two technicians: an installer and a helper.
We protect floors, wear shoe covers, and use plastic protection to contain dust and cutting debris.
Our team removes the old furnace, installs the new equipment, completes the necessary duct, gas, electrical, and vent connections, and tests the heating system.
We remove the old equipment and clean the work area before leaving.
Most straightforward furnace replacements are completed in one working day. More extensive modifications may require additional time.
Our detailed home assessment helps identify most potential problems before installation begins.
Occasionally, damaged ductwork, electrical wiring, plumbing, or other problems remain hidden until existing equipment or surrounding materials are removed.
If we discover something unexpected, we explain the problem and the proposed solution before proceeding.
Any additional work outside the agreed scope requires your approval through a written change order, including any change in price.
Whenever practical, we complete approved corrections while the area is accessible to avoid unnecessary return visits.
Not necessarily. A furnace replacement doesn't automatically require new ducts.
If your existing ductwork is in good condition and can provide the necessary airflow, we can often reuse it.
We check duct sizes, return airflow, restrictions, and room-by-room heating requirements. Sometimes a small duct modification can improve comfort without replacing the entire system.
You can also keep an existing air conditioner if its cooling coil, controls, and airflow requirements are compatible with the new furnace.
We recommend additional replacement work only when there's a technical reason.
We do more than check whether the furnace turns on and produces heat.
Our commissioning checks include:
We also show you how to operate your thermostat, review the completed work and test results, and handle manufacturer warranty registration.
Your installation includes our 3-year installation labor warranty, with covered work and terms specified in your contract.
If you experience a problem, we prioritize service for customers whose equipment we've installed, aiming for same-day attention whenever technician availability allows.
Manufacturer warranties provide separate equipment protection. Qualifying Bryant and American Standard furnaces offer 10-year limited parts coverage, with heat exchanger coverage extending to 20 years or lifetime on certain models.
We handle manufacturer warranty registration and provide the applicable documents.
We want you to have a local company to call after installation. Not just a manufacturer's phone number.
Furnace replacements generally require a mechanical permit and applicable inspections. The requirements depend on the property’s jurisdiction and the installation scope.
Your written estimate explains permit coordination, building inspections and any required independent energy-code testing. When these services are included in our scope, we coordinate the process and address required corrections to our installation.
A building inspection and an independent energy-code test serve different purposes. We confirm the applicable requirements for your address before finalizing the work.
It depends on your home, heating costs, and comfort expectations.
An 80% furnace converts about 80% of the gas energy it uses into heat for your home. A 96% furnace converts about 96%.
For the same heating demand, upgrading from 80% to 96% can reduce furnace gas consumption by approximately 17%.
For example, a furnace using 900 therms of gas annually could save roughly $405 per year at an illustrative $2.70 per therm.
High-efficiency furnaces also commonly require different exhaust piping and condensate drainage, which adds installation complexity.
A two-stage furnace can run at lower heating output during mild weather, potentially making the home quieter and temperatures more consistent.
The most expensive furnace isn't always the best investment. We help you weigh operating costs, comfort, and upfront price.
A heat pump can provide both heating and air conditioning, making it worth considering if you also want to add or replace cooling.
Unlike a gas furnace, a heat pump uses electricity to move heat into or out of your home.
However, a heat pump isn't automatically less expensive to operate in Santa Cruz. Your electricity rate, gas rate, insulation, and existing equipment all matter.
If your current air conditioner is relatively new and works well, replacing only the gas furnace may be the more economical choice.
If you need both heating and cooling, a full-electric or dual-fuel heat pump system may be worth comparing.
