Do Texas houses have furnaces?

Less than half of Stafford homes have anything you would call a furnace. Most apartments here heat with electric resistance strips inside a closet air handler, mobile homes use a listed downflow furnace, and detached houses run either a gas furnace or a heat pump. Which one you have changes the repair completely, so it is the first thing we ask.

Why is there a burning smell when I turn on the heater for the first time in winter?

Almost always dust. Your heater sat unused for nine months, dust settled on the heat strips or heat exchanger, and now it is burning off. It clears within a few hours. On brand new heat strips there is also a thin factory film that burns off, which smells stronger. What is not normal is a sharp electrical smell that does not clear. Shut it off and call us.

Can I put a regular home furnace in a mobile home?

No. HUD’s manufactured housing standard, 24 CFR Part 3280, requires a furnace tested and labelled for manufactured homes. A residential furnace is an upflow unit and cannot feed ducts that run under your floor, and it draws combustion air from inside the home rather than outside. Fitting one is a code violation and a carbon monoxide risk.

My heat is in a closet, not the attic. Is that different?

Yes, and it is good news for the repair. A closet air handler heats electrically, so there is no gas, no flame and no heat exchanger to fail. The fault list is shorter and mostly electrical: heat strip, sequencer, limit switch, capacitor. Most of those are same-visit fixes once the work order is approved.

Who has to approve the repair if I live in an apartment?

Your property manager or maintenance lead, not you. Call us anyway. We diagnose the fault and give you something specific to hand them, which moves faster than a vague maintenance request. Many Stafford properties already have a spending limit on file with us, so the repair can be approved without a second call.

The whole building lost heat, not just my unit. Who do I call?

Tell your property manager it is more than one unit, then call us. Four units failing together points at a shared panel or a breaker, not at four separate systems. 75 Degree AC diagnoses that as one building fault on one visit rather than billing four separate diagnostics.

Should a 25 year old furnace be replaced?

Yes, in almost every case. At twenty-five years you are past the useful life of the heat exchanger, parts are getting hard to source, and money spent on repairs buys you a season at a time. Given Stafford’s median build year of 1993, a fair number of houses here are on exactly that clock.

What is the average lifespan of a house furnace?

Fifteen to twenty years for a gas furnace, ten to fifteen for a heat pump, and often longer for electric heat strips because they do so little work in this climate. Houston furnaces run few hours per year, which sounds like it should extend their life. It does not, because they corrode while idle instead.

How much does it cost to replace a furnace for a 2000 sq ft house?

Most 2,000 square foot Stafford houses land between $4,500 and $8,500 installed, depending on efficiency, the state of the ductwork, and whether you are replacing the furnace alone or a matched system. CenterPoint rebates of $300 to $750 apply to qualifying equipment. We quote after checking static pressure, not off square footage alone.

Are furnace prices going up in 2026?

Equipment prices have risen through 2025 and 2026, driven mainly by the refrigerant transition from R-410A to R-454B and by efficiency minimums. Repairs on existing gas furnaces have moved much less. If your system is under twelve years old, waiting is not costing you anything.

Is the $89 diagnostic credited if I approve the repair?

Yes. 75 Degree AC charges $89 to find the fault and credits the full $89 against the repair once you approve it. You are not paying twice for the same visit.

Do you charge extra on the first cold night of the season?

After-hours and weekend rates apply, and the first real front is our busiest night of the year. We quote the rate on the phone before dispatch. No surprise line items on the invoice.

Are you licensed and insured to work in Stafford?

Yes. 75 Degree AC holds Texas licence TACLA72152E and carries liability insurance, and has worked across Fort Bend County since 2016. Stafford sits in both Fort Bend and Harris counties, and we are licensed for work in both.

Heating Repair in Stafford, TX | Same-Day

Same-day heating repair across Stafford, 77477 and Fort Bend County

75 Degree AC repairs heating systems in Stafford, Texas, covering 77477 and 77497 in Fort Bend County and the slice of the city that sits in Harris County. That is Stafford, Texas, off US-90A between Sugar Land and Missouri City, not Stafford in Virginia or England. Licence TACLA72152E. The diagnostic is $89, and it comes off the repair when you approve it.

Call (346) 681-2625. Fort Bend calls dispatch from our Richmond branch, not from the Houston shop.

In Stafford, your heater depends on which of two housing stocks you live in

Most heating advice written for this area assumes you own a detached house with a furnace in the attic. In Stafford that describes a minority of homes. The Census puts Stafford at 44.3% one-unit detached houses against 82.9% for Fort Bend County as a whole (ACS 2024 5-year, table B25024). It is the only city in the county where the single-family house is not the normal case.

Here is what the rest of it looks like. 39.1% of Stafford’s housing units sit in buildings of ten units or more, and 21.7% are in buildings of fifty or more. The county figure for those big buildings is 4.8%. So Stafford has roughly four and a half times the county’s share of large apartment buildings, packed into six square miles.

Table B25032 splits it by who lives there, and the split is unusually clean:

2,342 Stafford households own a detached house. They own the equipment and they decide what happens to it.
2,880 Stafford households rent in a building of five units or more. That is 70.8% of every renter in the city, and 43.4% of every occupied home in Stafford.
191 Stafford households own a mobile home. That is 7.4% of all Stafford homeowners, against 2.4% countywide and 0.3% in Sugar Land.
Zero Stafford households own a unit in a building of ten or more. Stafford has almost no condominiums. The big buildings are all rental.

All of which matters because those three groups do not own the same machine. A detached house in Stafford usually has an air handler or a gas furnace in the attic. An apartment almost always has an air handler standing in a closet, heated by electric resistance strips. A mobile home has neither, and legally cannot have either. Three appliances, three failure lists, and three different people who have to say yes before anyone opens a panel.

75 Degree AC works on all three. Most contractors serving this ZIP write as though only the first one exists.

Closet air handler, attic air handler, or manufactured-home furnace: what you have changes the repair

Before the table, the short version. If your heat lives in a hallway closet, the likely fault is electrical and the fix is usually same-visit. If it lives in the attic, the likely fault is ignition or airflow. If you live in a mobile home, the most common problem we find is that somebody already fitted the wrong appliance.

	Closet air handler	Attic air handler or furnace	Manufactured-home furnace
Typical Stafford home	Apartment in a 5+ unit building (2,880 households)	Detached house (2,342 owner households)	Mobile home (191 owner households)
Heat source	Electric resistance strips	Gas burners, or heat pump plus strips	Sealed-combustion downflow furnace
Where the ducts run	Short runs, inside the unit	Attic plenum overhead	Belly, under the floor
Most common failure we find	Heat strip, sequencer or limit switch	Ignition, flame sensor, blower	Wrong appliance fitted
Who authorises the repair	Property manager	You	You

Read it by column. Renters in a big building need the last row before they need the fourth one. Homeowners in a 1990s house need the fourth row. Mobile-home owners need the whole column, because the rules that govern their heater are not the rules that govern anyone else’s.

What fails in a closet air handler, and why it is usually not the thermostat

An apartment air handler in Stafford heats with electric resistance strips: coils of wire in the airstream, switched in stages by a sequencer. There is no flame, no gas line, no heat exchanger. That narrows the fault list a long way, and it means most no-heat calls in these buildings come down to something electrical rather than something mechanical.

What we actually find, roughly in order:

A failed heat strip. The blower runs, the air moves, the air is cold. Nothing sounds wrong, which is why people blame the thermostat.
A dead sequencer. The strips never get switched on, or only the first stage does. You get lukewarm air that never catches up on a cold night.
A tripped high-limit switch. Usually a symptom, not the disease. Something restricted the airflow first, often a filter nobody has changed since spring.
A blower motor or capacitor. Now the air stops moving too, and the limit switch trips to protect the strips.
A breaker that will not hold. Heat strips pull real current. A breaker that trips every cold evening is telling you something, and resetting it repeatedly is not the answer.
A blocked condensate line. This is the call we like least. By the time anyone phones about it there is usually already a stain on a stranger’s ceiling downstairs, and the heating fault has turned into two repairs and an awkward conversation.

Two things worth knowing before you call. A burning smell on the first cold night is normally dust, and we cover that in the questions below. And if four units in the same stack lost heat together, the problem is probably not in any of them.

A manufactured home cannot legally take a standard residential furnace

If you own one of Stafford’s 191 owner-occupied mobile homes, this section matters more than anything else on this page. A furnace built for a stick-built house is not an acceptable substitute in a manufactured home, and fitting one is not a shortcut. It is a code violation and a carbon monoxide risk.

Manufactured homes are built to a federal standard, HUD’s Manufactured Home Construction and Safety Standards at 24 CFR Part 3280, rather than to the local building code that governs a site-built house. That standard requires a heating appliance tested and labelled for manufactured housing. Three physical differences drive the rule:

Airflow direction. Mobile home ducts run through the belly, in the cavity under the floor. The furnace has to push air down into them. A standard residential furnace is an upflow unit and pushes air up. It cannot feed those ducts, whatever else is true about it.
Combustion air. Manufactured-home furnaces are generally sealed combustion, drawing air from outside the home through a concentric vent rather than from the room. The interior volume is small and tight enough that pulling combustion air from inside it is how people get poisoned.
Clearances and listing. These units are designed for a small enclosed alcove with clearances a residential cabinet does not respect.

75 Degree AC services manufactured-home furnaces and stocks parts for the brands that actually turn up in them, which are mostly not the brands on a house. Nordyne, Miller, Intertherm and Coleman-Mach cover most of what we open in Stafford. Not all of it. If a previous contractor quoted you a standard residential furnace for a mobile home, get a second opinion before you sign anything.

Who has to sign the work order before we can touch an apartment unit

In a Stafford apartment the property manager authorises the work, not you. People hear that and assume there is no point phoning us themselves. There is. Residents call 75 Degree AC directly all the time, and it usually speeds things up rather than wasting anybody’s afternoon.

How it actually goes:

You call and describe the fault. We log the address, the building and the unit. That costs you nothing and takes two minutes.
We tell you what it probably is. Knowing that your heat strip has failed and roughly what the visit involves is useful information to hand your manager. Vague complaints get deprioritised. Specific ones do not.
Your manager or maintenance lead sends the work order. Many Stafford properties already have a not-to-exceed limit on file, which means the repair can be approved without a second phone call.
We schedule against building access, not just your schedule. Big buildings have gate codes, mechanical rooms and panels that are not inside your unit. Getting in matters as much as getting there.
If the whole stack is down, we start at the panel. Four units failing together is a building problem. We tell the manager that on the first visit rather than billing four separate diagnostics.

75 Degree AC accepts heating work orders from Stafford property managers and from residents directly, and takes multiple units in one building on a single visit and a single invoice.

One boundary worth being straight about. What your landlord is legally required to do, and what you can do if they will not, is a different question from what is wrong with the machine. We cover the legal side properly on our Stafford AC repair page. This page is about the equipment.

Three-quarters of Stafford's heating demand arrives in ninety days

Stafford records about 1,421 heating degree days a year at the nearest weather station, Houston Sugarland Memorial (NOAA station USW00012977, roughly nine kilometres from the city and on the same latitude). 1,037 of those, 73.0%, fall in December, January and February. Cooling demand for the same location runs 2,938 degree days, a little over twice the heating load.

Measure	Stafford area (Sugar Land Regional)	Houston IAH
Heating degree days, annual	1,421	1,367
Heating degree days, Dec to Feb	1,037	1,003
Cooling degree days, annual	2,938	3,157

Two consequences follow, and they explain most of what we see in December.

Heaters here rot rather than wear out. A Stafford heating system sits unused for something like nine months, in humid air, then gets asked to do three-quarters of its annual work in ninety days. Bearings seize, contacts corrode, dust cakes onto the strips. The failure is not usually the result of hard use. It is the result of no use.

Everything fails on the same night. The first real front of the season is the first time thousands of Stafford systems get switched over to heat since February, and a share of them do not come back. So in December the thing worth asking about is not price, it is whether anyone can actually get to you. The first cold evening is our busiest of the year, every year.

What heating repair costs in Stafford, by symptom

75 Degree AC charges a flat $89 to diagnose a heating fault in Stafford, and credits that $89 against the repair when you approve it. You are not paying twice to find out what is wrong.

Symptom	Usual cause	Typical repair range
Blower runs, air is cold (apartment)	Heat strip or sequencer	$180 to $450
Lukewarm air, never catches up	One strip stage out	$180 to $380
Nothing runs at all	Capacitor, blower motor, control board	$200 to $700
Breaker trips every cold evening	Strip or wiring fault	$220 to $600
Furnace ignites then shuts off	Flame sensor or ignitor	$180 to $420
Water staining a ceiling below	Condensate blockage	$150 to $350
Mobile home, no heat	Downflow furnace repair	$200 to $650

Ranges cover parts and labour on a standard visit. After-hours work costs more, and we tell you that on the phone rather than on the invoice.

Stafford's median home was built in 1993, and that shows up in the ductwork

The median Stafford home was built in 1993, against 2005 for Fort Bend County (ACS 2024 5-year, table B25035). 67.3% of Stafford’s housing stock predates 2000, and 62.3% of it went up between 1970 and 1999. The county grew up around Stafford afterwards, which is why the two numbers are twelve years apart.

What that means on a service call is duct systems designed for equipment that left the property two replacements ago. Returns undersized for the blower now sitting in the attic. Flex runs that have sagged into an S over thirty years. Registers in rooms that were added later and fed off whatever was nearest.

This matters because a system starved of return air looks almost exactly like a system that is too small, and the second diagnosis sells far more equipment than the first one. We are not claiming every quote in a 1990s house is wrong. But 75 Degree AC checks static pressure and return sizing before quoting a replacement, and often enough the answer is ductwork.

Repair or replace?

Repair, in most cases, if the system is under twelve years old and the quote lands under about a third of replacement cost. Replace if it is past fifteen, has needed two repairs in two seasons, or the failure is a cracked heat exchanger. Between those, the arithmetic is genuinely close and depends on what else is worn.

Under 12 years, single fault: repair. Almost always the cheaper decade.
12 to 15 years, second repair in two winters: get both numbers and compare honestly.
Over 15 years, or a cracked heat exchanger: replace. A cracked exchanger is not a repair, it is a safety condition.
Mobile home, wrong appliance already fitted: replace with a listed manufactured-home unit. There is no repair path that makes an unlisted furnace compliant.
Apartment: not your call, and not your cost. Tell your manager what we found.

CenterPoint rebates of $300 to $750 apply to qualifying replacements. The federal 25C tax credit expired on 31 December 2025 and is no longer available, whatever an older article tells you.

Stafford neighborhoods and ZIP codes 75 Degree AC covers

75 Degree AC covers 77477 and 77497, and the whole of Stafford’s six square miles, including the part of the city that crosses into Harris County. Stafford is one of very few Texas cities split across two counties, which occasionally confuses permitting and always confuses mapping software.

Area	What it covers
77477	The whole of Stafford, both the Fort Bend and Harris County sides
77497	Stafford PO box addresses
Fort Bend County	The majority of the city
Harris County	The northern slice, which matters for permitting and nothing else

Areas we work in regularly:

The apartment corridors along Murphy Road and Cash Road
Stafford Run and the residential streets south of US-90A
The older detached streets near Staffordshire Road
The light-industrial belt off Greenbriar and Fountain Lake Circle, where the heating work is commercial rather than residential
Mobile home communities inside city limits

Adjacent cities: Sugar Land · Missouri City · Richmond · Rosenberg · Stafford HVAC contractor overview

Stafford heating calls dispatch from the Richmond branch on (346) 681-2625. Typical arrival in 77477 is under an hour.

Heating brands and systems we repair in Stafford

75 Degree AC repairs Carrier, Trane, Lennox, Goodman, Rheem, York and American Standard heating equipment, and stocks the common failure parts for all of them.

For manufactured housing the brand list is different, and that difference is the point:

Nordyne, Miller and Intertherm downflow furnaces
Coleman-Mach manufactured-home units
Revolv replacement systems

Most contractors serving this ZIP do not stock parts for any of those. If you have been told a mobile home furnace part is unobtainable, ask us before you replace the unit.

We repair electric resistance heat, gas furnaces, heat pumps and packaged units. Air handler, furnace or rooftop unit, in a closet, an attic or under a floor.

Heating Repair in Stafford, TX Apartments, Houses and Mobile Homes