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.
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Before
AfterHVAC Company in Seguin, TX
Dalton Heating & Air is the HVAC company Seguin homeowners call when the AC quits in July or the furnace won’t fire on a January morning. We work on the housing stock this city actually has: 1960s brick ranches, new builds in Mill Creek Crossing, and everything between. What changes the job here is simple – Seguin sits far enough from San Antonio that flat-rate companies charge travel fees, and close enough to the Guadalupe River that humidity pushes AC systems harder than the temperature alone suggests. Our crews arrive inside the stated window with the price in writing before any work starts. Call (361) 306-9515.
Why Seguin Homes Are Different
Seguin’s housing runs older than what you see in the sprawl toward San Antonio. A lot of the homes around Court Street and College Street were built before central air was standard, which means retrofitted ductwork, undersized returns, and condensers squeezed into tight side yards. Those systems fail differently than the clean installs in newer subdivisions off Highway 46. We see rusted condensate pans, crushed flex duct in crawl spaces, and electrical disconnects that predate modern code. That is not a guess – it is what the houses give us.
Then there is the humidity. Seguin sits in the Guadalupe River valley, and that moisture loads the AC coil all spring and fall. A system that cools fine in dry air struggles here because it is also pulling gallons of water out of the air every day. That means drain line maintenance matters more in Seguin than it does ten miles west. A clogged condensate line in a Seguin summer knocks a system offline in under a day. We keep that in mind on every call.
Most of Seguin is unincorporated Guadalupe County or city of Seguin jurisdiction, so permit rules change street by street. Our crews know which jobs need a city inspection and which ones don’t, because we work both. Homeowners never get stuck holding an open permit because the contractor walked away.
Our Main Seguin Services
Most calls we get in Seguin fall into two buckets: cooling that died when the heat index passed 105, and heating that won’t start during a cold snap. Here are the three services Seguin homeowners call Dalton for most.
AC Repair in Seguin
AC repair in Seguin usually comes down to three things: refrigerant charge, electrical failure, or airflow restriction. In this city, the airflow problems often trace back to that older ductwork we mentioned. We test the system, show you the fault in plain terms, and hand you a written price before any work begins. Whether it is a capacitor on a Goodman or a compressor on a Trane, the repair is guaranteed in writing for a full year. Full details are on the AC Repair in Seguin page.
Heat Pump Installation in Seguin
Heat pump installation in Seguin makes sense for homes that run the AC eight months out of the year and still need heat on the few nights it drops below freezing. Because this area rarely sees long hard freezes, a properly sized heat pump handles the heating load efficiently without a gas line. We load-calculate each home in Seguin individually, because a 1970s ranch and a 2020 build off 123 bypass need different tonnage. See Heat Pump Installation in Seguin for what the job includes and what it costs.
Furnace Repair in Seguin
Furnace repair in Seguin is usually a January problem. The gas furnaces here sit idle for most of the fall, then get asked to fire up during the first real cold front. Igniters, flame sensors, and gas valves are the common failures we see in Seguin homes. We carry parts in the truck for Rheem, Lennox, and Goodman furnaces, which shortens most repairs to a single visit. The repair is guaranteed in writing for a full year, and if it fails in that time, we return at no charge. More detail is on the Furnace Repair in Seguin 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 Seguin
Dalton Heating & Air is factory-trained on Trane, Lennox, Goodman, and Rheem equipment, and we stock common replacement parts for these brands in our trucks. That means many Seguin repairs are same-visit jobs, not a diagnosis followed by a part order and a second appointment. For the full picture on what we service, see our brands.
Pricing for HVAC Company in Seguin, TX
| Service | Typical range in Seguin |
|---|---|
| AC repair (general) | $150 – $650 |
| Furnace repair (general) | $150 – $700 |
| AC installation (full system) | $3,500 – $7,500 |
| Tune-up (cooling or heating) | $80 – $200 |
What pushes a Seguin repair toward the top of that range is usually access: a condenser buried in mud behind a fence, or a furnace crammed into a 1970s closet conversion. The price you see is the price you pay, in writing, before we touch anything. The Garrison Standard has worked that way since 2003.
Neighborhoods We Serve in Seguin
We run calls across the full Seguin area every week. Response time averages same-day for cooling emergencies and next-morning for scheduled calls, depending on when you reach us.
- Mill Creek Crossing
- Court Street area
- College Street corridor
- Walnut Springs
- Highway 46 corridor toward I-10
Service Area – Cities Near Seguin
Beyond Seguin proper, Dalton Heating & Air covers the surrounding towns where homeowners keep hitting the same no-show problem. We schedule daily runs to Marion, TX, New Braunfels, TX, Cibolo, TX, and Schertz, TX. Each has its own page with local pricing and service details.
Serving Seguin, TX - Our Local Coverage Area
We’re based in the Seguin 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 Seguin
We answer the phone with a live person 24/7 and schedule for the next available slot. For a cooling failure during a Seguin summer, that is usually same-day. For tune-ups and planned work, we schedule within the week. Call (361) 306-9515 to check today’s availability.
It depends on whether the property sits in the city of Seguin or unincorporated Guadalupe County. Equipment change-outs inside city limits generally require a permit and inspection; rural county properties often do not. We handle the paperwork on every job where a permit applies.
Every repair we make carries a written one-year guarantee. If the repair fails during that year, Dalton returns at no charge. That is the 365-Day Done Right Promise, and it applies to every Seguin call, not as an upsell. It is part of The Garrison Code.
For a straight answer on your HVAC issue in Seguin, call (361) 306-9515. You will get a written price before work starts and a full-year guarantee on the repair.
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 Seguin Customers Say
"Changed the filter size and added a better filter rack. Simple and useful advice."
- Rhonda C."Honest, direct people. Told me what the furnace needed and nothing more, and the bill matched."
- Eliza S."Coil cleaning and a refrigerant check before summer. AC has never been this cold."
- Marty D.