Cooling By Design

Furnace & Heat Pump Experts · Licensed CSLB #1148982

Heating Repair & Installation in Winnetka, CA

Cold morning and no heat? Cooling By Design repairs furnaces and heat pumps and installs efficient replacements for Winnetka homes, apartments and businesses. Same-day heating service available, with 24-hour emergency help.

  • Licensed & Insured
  • Same-Day Service
  • 24-Hour Emergency Service
  • Financing Available
Quick Answer

Who Repairs and Installs Heating Systems in Winnetka?

Cooling By Design, a licensed HVAC contractor (CSLB #1148982) based in neighboring Canoga Park, repairs and installs furnaces and heat pumps throughout Winnetka, CA 91306. We diagnose heating failures on the first visit, quote the work in writing before we begin, and offer same-day service when the schedule allows. If your furnace is near the end of its life, we will compare repair against replacement with a gas furnace or an all-electric heat pump, and back every new system with our 10-Year Cooling Comfort Plan. See all Winnetka HVAC services.

Heating Repair

Heating Repair in Winnetka: Problems We Fix

No heat at all

A bad igniter, dirty flame sensor, failed control board or tripped safety switch is the usual culprit when a furnace will not start.

Blowing cold air

The burners may be shutting off early, the thermostat fan may be set to on, or a heat pump may be stuck in defrost mode.

Short cycling

Overheating from a clogged filter or blocked vent, or a failing sensor, makes the furnace start and stop without warming the house.

Banging, squealing or rattling

Noisy blowers, delayed ignition and loose panels are early warnings. Fix them before they become a no-heat night.

Uneven or weak heat

Cold rooms often trace back to leaking or poorly insulated ducts in the attic, not the furnace itself.

Thermostat and control faults

Dead batteries, wiring faults and mismatched settings can mimic a failed furnace. We test the whole control chain.

Safety first: if you smell gas, leave the home right away, avoid switches and flames, and call your gas utility's emergency line and 911 from outside. Never ignore a carbon monoxide alarm. Once everyone is safe, call us for an inspection.
Our Process

How a Heating Repair Visit Works

Furnace control panel and wiring inspected by a Cooling By Design technician

Call or book online

Reach us at (877) 702-6654 or schedule online. Same-day heating visits are available when the schedule allows.

Safety check and diagnosis

Your technician checks gas, venting and electrical safety first, then tests the system and explains what failed in plain language.

Approve a written quote

You see the price before any work starts. No pressure to add anything you do not need.

Repair, test, explain

We fix it, confirm steady, even heat and show you how to keep the problem from returning.

Heating Installation

Furnace or Heat Pump? Choosing a New Heating System in Winnetka

San Fernando Valley winters are mild, so a new heating system is judged less on raw power and more on efficiency, safety and how well it pairs with your cooling. Here is how the two main options compare for a typical Winnetka home.

FactorGas furnace plus ACHeat pump
How it worksBurns natural gas for heat; a separate AC coolsMoves heat electrically and both heats and cools
Mild Valley wintersFast, powerful heat on cold morningsVery efficient in mild climates and delivers steady warmth
Operating costDepends on gas and electric ratesOften lower for heating, depending on your electric rate plan
Equipment to maintainTwo systemsOne system
Best fitHomes with existing gas lines and ductwork that want quick heatHomes replacing furnace and AC together, or moving toward all-electric

Sized and permitted correctly

We size by load calculation, check ductwork and handle permits and California energy-code requirements for the installation.

Safe venting and combustion

Gas furnace installs include proper venting, gas connections and combustion testing so your home stays safe.

Smarter control

Pair your system with a modern thermostat from our products range for easier scheduling and lower bills.

Included With New Installations

Install Your Heating System Once. Relax for 10 Years.

Every new system from Cooling By Design includes our 10-Year Cooling Comfort Plan: a 10-year parts warranty, 10-year labor coverage, professional maintenance before every summer and winter (20 seasonal tune-ups) and flexible payments.

Winnetka Heating Reality Check

What Winnetka Homeowners Should Know About Heating

Furnaces sit idle for months

In the Valley, many furnaces run only a few weeks a year. After a long idle summer, the first cold night is when worn igniters, dirty sensors and stuck blowers show up, usually at the least convenient time.

First start-up dust

Dust that settled on the heat exchanger burns off on the first run and can smell like burning. Brief odor is normal; a gas smell or a smell that lingers is not. Santa Ana wind seasons make this more common.

Attic ducts lose heat too

Ducts running through a cold attic on a winter night leak and lose heat just as they do in summer. Sealing and insulating them improves comfort in both seasons.

Apartments and rentals

With about 42% of Winnetka households renting (2010 census), landlords need fast, documented repairs. We work with property owners and managers on scheduling and written quotes.

Gas safety matters

An aging furnace can develop a cracked heat exchanger, which can leak carbon monoxide. An annual inspection and working CO alarms are the best protection.

A natural time to go electric

Many homeowners replace an aging furnace and AC together with a heat pump. Ask us about incentives that may apply to your project.

Beat the first cold snap. When the first cold night arrives, everyone calls at once and schedules fill fast. A fall tune-up now catches problems before they leave you without heat, and our maintenance plans put those visits on the calendar for you.
Customer Reviews

Trusted for Honest HVAC Service

Posted on Yelp Yelp
Alex R. profile picture
Alex R.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
Adi came by and fixed my AC within 20 minutes of calling. Great service and quick response
Posted on Yelp Yelp
Tammy D. profile picture
Tammy D.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
I had Cooling By Design come to fix my A/C during one of the hottest and busiest times of the year. They were able to get me on the schedule the same day and repair completed as well. Adi was consistent in communicating throughout the day. He was trustworthy to come into my residence when I left it open due to work related issues. I would highly recommend them. The repair was done with something basic that was needed and they did not try to add on extra work to make more on the job. Very grateful customer.
Posted on Yelp Yelp
Ashley profile picture
Ashley
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
Cooling By Design came quickly - in a heat wave! Found the problem, got the unit working again swiftly. Would call again!
Posted on Yelp Yelp
Sayde C. profile picture
Sayde C.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
Our A/C stopped working during this week's heatwave. When the tech came out the next morning, he quickly diagnosed the issue and got us back up and running. Thank you, Adi, for helping us out in Newbury Park and for the honest work!
Posted on Yelp Yelp
Abtin B. profile picture
Abtin B.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
Our AC went out during a brutal hot weekend in Woodland Hills - basically worst-case timing. Cooling by Design showed up within hours, diagnosed the issue fast, and got everything running again without any runaround. What stood out most: clear communication, fair pricing, and no upsell pressure. Just solid, honest work when we needed it most. Definitely keeping Adi & Cooling by Design as our go-to.
Posted on Yelp Yelp
Adam W. profile picture
Adam W.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
Good with eco-friendly options, including heat pumps (work great and have saved us $$ on electricity use) and whole-house clean air filters. Have worked with the owner on several projects, including post-fire cleanup, and am on an annual maintenance plan. Adi has been highly dependable and his techs very sharp & friendly.
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Heating Questions Answered

Heating Repair and Installation FAQs for Winnetka

Common causes are a dirty flame sensor or failing igniter that shuts the burners off, a thermostat fan set to on instead of auto, a clogged filter causing overheating, or a heat pump in defrost mode. If it does not warm up after a few minutes, call a technician.

Once a year, ideally in early fall before the first cold nights. Our maintenance plans schedule professional tune-ups before every summer and winter, so heating and cooling are both checked on time.

For many homes, yes. Heat pumps are most efficient in mild climates like the Valley, and one unit both heats and cools. A gas furnace remains a good choice for homes with existing gas service and ductwork that want fast, strong heat. We will compare both for your home.

A well-maintained gas furnace commonly lasts 15 to 20 years, and heat pumps typically last 12 to 15 years. Age matters less than repair history, safety condition and efficiency, so we assess all three before recommending replacement.

Leave the home immediately, do not touch light switches or use flames, and call your gas utility’s emergency line and 911 from outside. After the utility declares the home safe, call Cooling By Design to inspect the furnace.

In the City of Los Angeles, replacing a furnace or heat pump generally requires a permit and compliance with California’s energy code, which often includes duct testing. We handle the permit and inspection for you.

Yes. Financing is available, and installing with us includes the 10-Year Cooling Comfort Plan with a 10-year parts warranty, 10-year labor coverage and professional maintenance. See our financing options.

Heater Down? Let's Fix It

Get Warm Again in Winnetka

Request a quote or call (877) 702-6654 for same-day heating service. Need cooling instead? See our AC repair and installation in Winnetka.

Get Your Free HVAC Quote

Tell us what you need and a Cooling By Design team member will reach out shortly. Need help right now? Call (877) 702-6654.

Submit Your Query

Tell us what is going on with your AC or heating. A Cooling By Design team member will get back to you shortly. For urgent same-day service, call (877) 702-6654.

Request a Heater Installation Quote

Planning to replace an old heater or install a new heating system? Tell us about your home and we will schedule a free assessment and send clear options and pricing.

Claim Your LADWP Heat Pump Rebate

Tell us about your home and we will check your LADWP heat pump rebate eligibility, size a qualifying system and schedule your free assessment. Rebates are paid by LADWP to eligible electric customers.