Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
HVAC Company in Sunnyvale, TX
We’re Meadowsweet Heating & Air, and we handle HVAC work across Sunnyvale, TX. Most of the homes we step into here were built between the 1950s and 1970s, and a large share of them still run on original floor furnaces or wall heaters with no ductwork at all. That single fact shapes nearly every job we do in this city, from a first-time AC retrofit in a slab-on-grade ranch to a quiet furnace repair in an older home with tight attic clearance. If you need help with your system, call (747) 966-3037 and a live person answers, day or night.
Why Sunnyvale Homes Are Different
Sunnyvale sits in a warm inland pocket of the South Bay, sheltered from direct marine influence by the Santa Cruz Mountains. In practical terms, that means summers here consistently run 5 to 10 degrees hotter than coastal Peninsula cities, with stretches hitting 95 to 100 degrees. Winters stay mild by comparison, rarely dipping below 35. The result is an HVAC load profile that leans heavily on cooling, while many of the systems that do exist were sized only for heating.
The housing stock compounds the challenge. The bulk of Sunnyvale’s residential streets are lined with 1,000 to 1,600 square foot stucco ranch homes built between 1950 and 1975, most of them slab-on-grade with low or no attic clearance. Traditional duct runs become difficult and costly in that construction style, which is why we frequently recommend ductless mini-splits or high-velocity small-duct systems as the practical retrofit path.
In neighborhoods like Ponderosa and Borregas, our techs regularly show up for what a homeowner calls a tune-up or a quote, only to find the sole heat source is an original 1960s floor furnace with no plenum, no ducts, no air handler. The system has to be engineered from scratch. That’s the norm rather than the exception on Sunnyvale’s older east-side streets, and it calls for a crew that plans carefully before any equipment is ordered.
Our Main Sunnyvale Services
AC repair and furnace repair are the two calls we field most often from Sunnyvale homeowners, and AC installation is close behind as more families retrofit homes that were never built for central cooling.
AC Repair in Sunnyvale
When the temperature pushes toward 100 degrees, a cooling failure in Sunnyvale isn’t just uncomfortable. It’s a genuine health concern for kids, older family members, and pets. Most No. 1 repairs we see in this city trace back to undersized equipment, aging run capacitors, or refrigerant leaks in systems that were never matched to the cooling load. We arrive with shoe covers and drop cloths, diagnose the issue, and hand you a written price before any work begins. Learn more on our AC Repair in Sunnyvale page.

Furnace Repair in Sunnyvale
Sunnyvale winters don’t get brutal, but a failed furnace in January still means cold floors and cold mornings, especially in slab-on-grade homes where heat rises and escapes fast. We repair all major brands, and when we find an old floor furnace that’s beyond saving, we’ll walk you through replacement options without pressure. The 365-Day Done Right Promise stands behind every repair. See what’s involved on our Furnace Repair in Sunnyvale page.

AC Installation in Sunnyvale
First-time AC retrofits are the signature job in Sunnyvale. A house built without ductwork needs a real design conversation, not a one-size-fits-all quote. We evaluate the home’s layout, attic clearance, and cooling load before recommending equipment, then give you a fixed, written price and a set install date. Our installation crews protect floors, keep tools quiet during nap or school hours, and send a photo of the clean-up before they leave. Details are on our AC Installation in Sunnyvale page.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Sunnyvale
We service and install equipment from Goodman, Rheem, York, and Daikin, among other leading brands. Our techs keep common parts stocked locally so repairs in Sunnyvale move faster, and we can source any remaining component quickly through our metro parts network. Visit our brands page for the full list.
Pricing for HVAC Company in Sunnyvale, TX
| Service | Typical range in Sunnyvale |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
What pushes an AC repair toward the higher end in Sunnyvale is usually the age of the equipment and whether the system was properly sized for cooling in the first place. Retrofit installations on slab-on-grade homes with no existing ductwork tend to land at the upper end of the installation range, while a straightforward swap in a home that already has ducts comes in lower. Either way, you get a written price before any work starts, so the number on the page is the number you approve.
Neighborhoods We Serve in Sunnyvale
We work throughout Sunnyvale, including the older east-side streets where floor furnaces are still common and the west-side pockets closer to the tech corridor. Our crews know which homes tend to have low attic clearance, which blocks sit on slab foundations, and where permit timing tends to slow a retrofit.
- Ponderosa
- Borregas
- Cherry Orchard
- Lakewood
- Heritage District
For most Sunnyvale calls, we can have a technician at your door the same day or the next morning, with urgent cooling issues prioritized during summer heat events.
Service Area – Cities Near Sunnyvale
While Sunnyvale is our focus here, our crews also serve nearby communities across the metro. If you’re in Mesquite, NV, Balch Springs, TX, Forney, TX, or Rowlett, TX, we can dispatch a technician to you as well. Scheduling and support are coordinated from our Dallas-Fort Worth office.
Serving Sunnyvale, TX - Our Local Coverage Area
We’re based in the Sunnyvale area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Sunnyvale
Most Sunnyvale calls can be answered the same day, and urgent no-cooling situations in summer heat are treated as priority jobs. Call (747) 966-3037 and a live person, not a voicemail, will help you schedule. We staff phones 24 hours a day, seven days a week.
Yes, most AC installations and major furnace replacements in Sunnyvale require a permit. We handle the permit paperwork as part of the installation process and schedule inspections to match the city’s requirements. You won’t need to chase down forms yourself.
No. There is no overtime charge for after-hours calls in Sunnyvale or anywhere else we serve. The price we quote is the price you pay, at any hour, and every job includes a written price before work starts.
For a free estimate on any HVAC work in Sunnyvale, call Meadowsweet Heating & Air at (747) 966-3037. We’ll send a background-checked, uniformed technician who protects your floors, respects your family’s routine, and backs the job with the 365-Day Done Right Promise.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Sunnyvale Customers Say
"Comfortable in every room now, and not a trace that a crew had been here. Booties, drop cloths, the works. They even wiped down the thermostat they'd handled. Really considerate."
- Lamar Finch"New system install. They protected the hallway floor all the way to the attic and vacuumed after. Worked quietly around my work calls. Not a trace left behind."
- Rosalind Okeke"AC repair in July. The tech laid a mat down by the indoor unit and wore booties through the house. Fixed it fast and left zero mess. Quiet and kind, good with our nervous dog too."
- Delia Frost







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