Why Your New Prosper Home Has Hot Spots
Bought a $600,000+ home and the upstairs is 7 degrees hotter than downstairs? You're not alone. We specialize in fixing what rushed builders got wrong.
Quick Answer: Why Is My New Prosper Home's Upstairs So Hot?
The most common causes of hot upstairs rooms in new Prosper homes are undersized return air ducts (found in 35% of evaluations), improper system commissioning (70% of new homes), and oversized HVAC systems that short-cycle (45%). These are builder shortcuts, not "normal" behavior. Jupitair HVAC has fixed 200+ new construction HVAC problems in Prosper neighborhoods including Whitley Place, Light Farms, Artesia, and Windsong Ranch.
How much does it cost to fix? Based on Jupitair's 2022-2024 service data, the average total correction cost for new construction HVAC problems in Prosper is $1,500-$3,500, with average energy savings of $600-$1,200 per year after correction.
When Your Dream Home Becomes a Comfort Nightmare
Last March, the Thompson family called me from their 8-month-old home in Whitley Place. They'd paid $680,000 for what was supposed to be the perfect house. Instead, they were living in a comfort disaster.
Their "high-efficiency" 16 SEER system was running constantly. The master bedroom hit 78 degrees while the downstairs sat at 71. Humidity hovered at 65%, creating mold concerns in the closets. Their electric bills were $480/month - 40% higher than the builder's energy projections.
When they called the builder, he pointed to the HVAC subcontractor. The subcontractor blamed the equipment manufacturer. The manufacturer said it was an installation issue. Nobody would take responsibility.
Three Days Later:
- Every room within 2 degrees of thermostat setting
- Humidity at 45% (the sweet spot for Texas)
- Electric bills dropped to $320/month
- The house finally performs like a $680,000 home should
The problems? Completely preventable:
- System never properly commissioned after installation
- Return air undersized by 30% (common shortcut)
- No humidity control installed despite being in the quote
- Ductwork connections sealed with tape instead of mastic
This happens constantly in Prosper's construction boom. When builders complete 20+ homes a month, proper HVAC commissioning gets skipped.
Is Your New Prosper Home Uncomfortable?
We specialize in fixing what builders rushed through.
Call Now Call $(940) 390-5676The Hidden Reality of Prosper's Construction Boom
Prosper grew from 3,000 residents to 30,000+ in two decades. That growth created a construction frenzy where speed often trumps quality.
What Volume Builders Skip
The result: Systems that "work" but don't perform. You get cooling. You don't get comfort.
Common Problems in Prosper New Construction
Sound familiar? Here's what's really going on.
Upstairs Is Always Hot
Second floor 5-8 degrees warmer than first floor
"That's normal, heat rises"
Inadequate return air on second floor, oversized system short-cycling, or improper duct design
Airflow analysis, return air additions, possible zoning system
$2,800-$4,500
AC Runs Constantly But Never Feels Right
System runs 18+ hours/day, house feels clammy
"It's just really hot outside"
Oversized equipment, no dehumidification, or refrigerant charge issues
System commissioning, possible dehumidifier addition
$1,800-$3,200
Electric Bill Shock
Bills 30-50% higher than projected
"Energy costs went up" or "You probably use more than average"
Duct leakage, improper charge, running inefficiently
Comprehensive system tune-up and duct sealing
$800-$2,400
Rooms That Never Get Comfortable
Home office, bonus room, or master closet is always off
"That room is far from the unit" or "Close the door"
Duct runs too long, undersized ducts, no damper adjustment
Duct modification, damper balancing, possible mini-split
$2,800-$5,500
What We Typically Find in Prosper New Builds
Based on 200+ new construction evaluations in Prosper
| Issue | Frequency | Typical Cost to Correct |
|---|---|---|
| Improper refrigerant charge | 45% | $150-$400 |
| Unbalanced airflow | 65% | $200-$600 |
| Undersized return air | 35% | $800-$1,500 |
| Duct leakage >15% | 55% | $1,200-$2,400 |
| No commissioning done | 70% | $289 (our service) |
| Humidity control not set up | 40% | $150-$300 |
Data from Jupitair HVAC service records, 2022-2024. Based on 200+ new construction evaluations in Prosper, TX.
Prosper Neighborhoods We Serve
We've worked in every major Prosper development
Same-day diagnostic appointments available. 2-hour emergency response for system failures.
New Construction HVAC Services
Transparent pricing for diagnostic and correction services
New Construction Diagnostic
Complete system evaluation
System Commissioning
Full startup procedure
Complete Correction
Fix what builders got wrong
All diagnostic fees apply toward completed work. Custom quotes provided after evaluation for major corrections.
Need a Custom Quote?
Every HVAC situation is unique. Contact us for a personalized estimate based on your specific needs, equipment, and budget.
Warranty Navigation Help
When something goes wrong, each party points to the other. We can help.
How We Help:
- Document all issues with photos and measurements
- Identify whether it's installation, equipment, or design issue
- Provide professional assessment for warranty claims
- Work directly with builders when needed
New Construction HVAC Questions
Common questions from Prosper homeowners
Still Have Questions?
Our HVAC experts are here to help with personalized answers for your specific needs.
What Prosper Homeowners Say
Real reviews from new construction diagnostics and corrections
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(940) 390-5676
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Frisco, Plano & surrounding
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Your $600,000+ Home Should Be Comfortable. Period.
If your builder is making excuses and your HVAC contractor won't return calls, you need an independent expert.
Call Now $(940) 390-5676We've fixed 200+ new construction HVAC problems in Prosper.
Sources & Industry References
- HVAC Sizing Standards: ACCA (Air Conditioning Contractors of America) Manual J load calculation requirements. [acca.org]
- Duct Design: ACCA Manual D residential duct design standards. [acca.org]
- Commissioning Guidelines: ASHRAE Guideline 0 for HVAC system commissioning. [ashrae.org]
- Texas Building Standards: Texas Department of Licensing and Regulation (TDLR) HVAC requirements. [tdlr.texas.gov]
- Service Data: Internal Jupitair HVAC service records, 2022-2024 (200+ new construction evaluations in Prosper, TX).
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