Trusted Furnace Services Across the Valley
Day & Night Air Conditioning, Heating, and Plumbing provides furnace services across the Valley of the Sun in Arizona.
Winters here are short, but the nights can still be very cold. When they do, your furnace has to heat the house safely. If it will not start, blows cool air, or raises any gas-safety concern, you need prompt service from an experienced technician.
For over four decades, our locally based, NATE-certified technicians have repaired, installed, and maintained both gas and electric furnaces throughout the Valley. We work under Arizona contractor licenses ROC335883 and ROC335884, and we understand how these systems actually run in the desert climate.
You get upfront pricing, a written warranty, and a team that answers the phone any hour.
Common Furnace Problems in Arizona
- The furnace blows cool air because the burner does not stay lit. This is often caused by a flame sensor covered in the dust that builds up over summer.
- The furnace overheats and shuts off mid-cycle. Desert dust and dust-storm grit clog the filter and blower through the summer, so the furnace fails on the first cold night.
- The furnace short-cycles, clicking on and off every few minutes. This can mean the unit is oversized, built for a colder climate than the Valley of the Sun’s mild winters.
- New banging, rattling, or squealing sounds. Local pests often shelter inside a furnace through the warm months.
- On a gas furnace, a cracked heat exchanger can leak carbon monoxide. Our wide day-to-night temperature swings flex the metal until it fatigues and cracks.
How Does a Furnace Work?
A furnace warms air in one central unit, then blows it through your ducts to every room, which is why it’s called a central heating system.
The heat itself comes from one of two sources. A gas furnace burns natural gas at a row of burners, and the flame warms a metal heat exchanger. An electric furnace runs current through heating elements, a bit like a giant hair dryer.
From there, both types work the same way. The blower pulls in cool household air, moves it across the hot heat exchanger or elements, and sends the warm air back out through the ducts. Your thermostat starts and stops the cycle to hold the temperature you set.
The big difference is venting and safety. A gas furnace produces exhaust gases and sends them outside through a flue, so it needs a sound heat exchanger. An electric furnace burns no fuel, so it produces no exhaust.
For more detail, see the U.S. Department of Energy’s guide to furnaces and boilers.
Complete Furnace Solutions for Valley Homeowners
Day & Night technicians repair, install, and service furnaces at every stage. A furnace in Arizona only works for a short season, so the real test is whether it starts on the occasional cold night, heats evenly, and runs efficiently. Our licensed technicians keep gas and electric furnaces doing all three.
We offer:
- Furnace repair for gas and electric units, including emergency help
- Furnace installation and replacement, sized right for your home
- Seasonal furnace maintenance and safety checks
- Honest repair-or-replace guidance when a furnace is near the end
Whether you need a new unit or a quick seasonal check, we keep your heat ready for the nights that actually get cold.
Furnace Repair in the Valley of the Sun
Furnace repair fixes the problem so you do not have to replace the whole system. When a furnace acts up, it is easy to fear the worst, but most issues come down to a single damaged or dirty part.
Our trained technicians check your furnace, find the real cause, and explain it in plain language. Once you give the go-ahead, we handle the repair, usually for an affordable price.
No matter the brand or whether your unit is gas or electric, our team can help. When the heat quits late at night, our emergency crew works fast to warm your home.
Furnace Installation and Replacement in the Valley
Replacement is the right move when repairs stop paying off. Every furnace eventually reaches a point where it costs more to fix than to replace, or simply cannot keep the house comfortable anymore.
We inspect your current unit and give you a straight answer on where it stands, with no pressure to buy. If a new furnace is the smart call, we help you choose between gas and electric and size it correctly for your home, and we back every installation in writing.
Furnace Maintenance Across the Valley
Maintenance is the best way to avoid emergency repairs and protect your warranty. Most furnace makers require an annual tune-up to keep coverage valid, so skipping it can leave you paying for a repair the warranty would have covered. A seasonal visit also catches small issues, a tired part, a dirty filter, or a loose connection, and fixes them while they are still cheap and easy.
Why Choose Day & Night for Furnace Services
Day & Night Air Conditioning, Heating, and Plumbing combines local climate knowledge with deep furnace-service experience. Here is what you get.
- Four Decades of Furnace Work. We have serviced and installed Valley furnaces since 1978, so we know how these systems behave in the desert. Our work is backed by Arizona contractor licenses ROC335883 and ROC335884, which means every job meets state code.
- 10-Year Parts and Labor Warranty. Every furnace we install comes with industry-leading 10-year parts and labor coverage. Your investment stays protected long after our crew packs up, so a covered part or repair down the road does not come out of your pocket.
- 365-Day Buyback Guarantee. A new furnace has a full year to prove itself. If it does not meet its promised performance and we cannot make it right, we remove it and refund the amount you qualify for under our 365-day guarantee.
- Upfront, Flat-Rate Pricing. You approve a firm price before we pick up a single tool, and that number does not grow partway through the job. No surprise add-ons and no hourly meter, just the figure you agreed to at the start.
- Same-Day Service. Our phone is answered any hour of the day or night. When you call with a furnace that has quit, we can often reach your home the same day, so you are not left waiting through a cold night for heat.
- NATE-Certified Crews. Our trained technicians hold NATE certification and work on every major furnace brand, gas or electric. We are also a factory-authorized Trane dealer so that we can service and install top-tier equipment with full support.
- Homes and Businesses. We service furnaces in both residential and commercial buildings across the Valley. Whether it is a single-family home or a small business that needs reliable heat on cold mornings, our crews hold to the same standard.
VIP Club members get two tune-ups a year, first-in-line scheduling, and a discount on repair costs. Experience the Day & Night difference.
What to Expect When You Book Furnace Service
Every furnace visit from Day & Night follows a high standard, with an old-fashioned, do-it-right approach that sets us apart.
A Gas Safety Check on Every Furnace Visit
On a unit that burns fuel, heat is only half the job. While our furnace technicians are in your home, they inspect the heat exchanger for cracks and check the burners and venting. They also make sure the furnace is not leaking carbon monoxide into your home. A furnace can heat fine and still be unsafe, so we never treat the safety side as optional. If we find a cracked heat exchanger, we tell you plainly and recommend replacement, since that is a carbon monoxide risk.
We Make the Whole Job Easy on You
Our technicians deliver hassle-free service, from the first call to the last walkthrough. You book a time that fits your schedule, and we tell you when the technician will arrive. If you need to finance a repair or a new furnace, we walk you through your options. When we replace a furnace, we haul away the old unit and clean up before we leave, so you get reliable heat and peace of mind.
One Local Company for Your Whole System
Day & Night handles your whole system, not just the furnace. A furnace connects to your ductwork, thermostat, and gas line, and we work on all of it. As an HVAC and plumbing company, we can cover the furnace and the surrounding components in one visit. A heating-only contractor would leave the rest to someone else. With us, you deal with fewer companies and one team that knows your home.
Save on Furnace Services in Arizona
Furnace services should not strain your budget, so our team offers several ways to keep costs manageable.
Seasonal Specials
Our seasonal specials rotate throughout the year, and the cold months are when furnace offers tend to appear. Our deals change with the season, so the smart move is to check what is available when you book. You might catch savings on a tune-up heading into winter, or on a new system when it is time to replace. See what is available right now on our seasonal specials page.
Flexible Financing
Flexible financing spreads the cost of a bigger furnace job over time. That helps when a replacement lands sooner than you planned. We work with several lenders, so the application is quick and requires no down payment. Approved buyers get manageable monthly payments instead of one large bill, which makes a high-efficiency furnace much easier to say yes to. If a new furnace is on the horizon, look at our financing options. We can walk you through what fits when we provide a quote.
The VIP Club
The VIP Club is built for homeowners who would rather prevent furnace trouble than pay for it. Members get two seasonal tune-ups a year, each including a furnace cleaning, so your system is ready before the season's first cold snap. Membership also adds priority scheduling, a waived service-call fee, and a discount on any repairs you need. Sign up for the VIP Club to get your furnace, and the rest of your HVAC system, on a simple service schedule.
Furnace Technicians Near You
Our furnace technicians serve homeowners across the Valley of the Sun in Arizona. We respond to residential properties in:
Nearby, we also serve:
- Cave Creek
- Carefree
- Deer Valley
- Peoria
- Tempe
- Anthem
- Arcadia
- Fountain Hills
- Goodyear
Our team also covers Litchfield Park, Paradise Valley, Pebble Creek, Sun City, Surprise, Buckeye, Avondale, and Waddell. Wherever your home is in the North Valley or East Valley, our trained technicians are available to help.
What Valley Homeowners Say About Our Furnace Service
Reviews on our Google profile tell a consistent story. They mention how fast we arrive, how clearly the technician explained what failed, and how the final price matched the quote. Take a look at what your neighbors wrote, and add your own after we have earned it.
Read Our 5-Star Reviews
Related Heating Services in Arizona
A furnace is only one way to heat a Valley home. Day & Night also offers:
Stay Warm All Winter with Day & Night
Day & Night keeps Valley homes warm with expert heating repair, installation, and maintenance. Our certified technicians service gas and electric furnaces and heat pumps, quickly find the real problem, and quote a price before any work begins. Whether your system needs a quick fix or a full replacement, you get honest advice and dependable heat. Experience the Day & Night difference.
Frequently Asked Questions
Do I really need a furnace in Arizona's mild winters?
Is a gas or electric furnace better for my home?
It depends on your home and priorities. A gas furnace heats quickly and often costs less to run, but it burns fuel and needs safe venting. An electric furnace costs less to install, produces no exhaust gases, and suits homes without a gas line. We look at your setup and help you choose.
Can you still get parts for an older furnace?
Day & Night, Your Local Furnace Team in the Valley
Day & Night Air Conditioning, Heating, & Plumbing
3669 E La Salle St, Phoenix, AZ 85040
Hours: Open 24 hours, 7 days a week. Our phone lines are always open, and we dispatch ASAP.