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AC repair, installation, and maintenance for Sherman homeowners. Same-day service available. Licensed technicians. Call now—we answer 24/7.

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Climate-Ready HVAC Solutions

Keeping Sherman Comfortable Year-Round

Texas heat around Sherman is legendary for a reason. Extended 100°+ stretches, combined with humidity in the eastern half of the state, mean your AC works harder and longer than almost anywhere else in the country.

Texas summers test the limits of HVAC equipment. Undersized or aging systems simply can't keep up during heat waves.

Local Pricing

HVAC Costs in Sherman

ServiceTypical Cost
AC Repair$125 - $450
Furnace Repair$125 - $375
AC Installation$4,000 - $8,500
Furnace Installation$2,500 - $5,000
Full System (AC + Furnace)$8,000 - $16,000

Prices based on quotes from contractors in the Texas market. Texas's extended cooling season means AC efficiency is critical. Most contractors offer financing for larger installations.

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Top-Rated HVAC Contractors in Your Area

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4.5+ Star Contractors Only

We only list contractors rated 4.5+ stars by verified local homeowners.

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Quotes Done Daily.

Get quotes from local HVAC contractors in hours not weeks.

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Licensed & Insured Pros

Every contractor in our directory is licensed, insured, and background-checked.

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Local Service, Local Trust

Connect with pros who know your neighborhood and service your zip code.

HVAC fan iconWhat Local Pros Offer

Common HVAC Maintenance
Packages

These are typical maintenance packages offered by contractors in our network. Actual pricing and services vary by contractor.

Comfort

  • Heating system inspection
  • Air filter replacement
  • Thermostat calibration check

Comfort Pro

  • Everything in Basic, plus:
  • Clean condenser coil
  • AC system inspection
  • Drain line flush
  • Electrical connections check

Comfort Elite

  • Everything in Standard, plus:
  • AC refrigerant leak detection & repair
  • AC fan inspection & replacement (if needed)
  • Priority scheduling
  • 15% discount on repairs
  • No overtime charges

Comfort

  • Heating system inspection
  • Air filter replacement
  • Thermostat calibration check

Comfort Pro

  • Everything in Basic, plus:
  • Clean condenser coil
  • AC system inspection
  • Drain line flush
  • Electrical connections check

Comfort Elite

  • Everything in Standard, plus:
  • AC refrigerant leak detection & repair
  • AC fan inspection & replacement (if needed)
  • Priority scheduling
  • 15% discount on repairs
  • No overtime charges

HVAC fan iconReviews

What Sherman Customers Say

We had such a great experience with Markl & Sons. They were recommended to us from trusted friends and now we see why. They were able to come out to us within 30 minutes of our call and had the issue fixed in a timely fashion. The technician was knowledge and professional. We will absolutely use them in the future and recommend them to all who have AC needs.

K

Kirsten Puente

Review of Markl & Sons Cooling and Heating

Customer service representative helping a client with HVAC questions

1,000+

Cities
Covered

HVAC technician inspecting heating and cooling equipment
Trusted Contractor Directory

HVAC fan iconFaq

Sherman HVAC Questions Answered

Find the right HVAC contractor in Sherman. We connect you with licensed, insured professionals who deliver quality service—backed by real customer reviews.

How often should I change my air filter?

Every 1-3 months. Closer to 30 days if you have pets, allergies, or live in a dusty area. A dirty filter makes your system work harder and die sooner. Set a phone reminder.

How do I know if I should repair or replace my system?

General rule: If the repair costs more than half what a new system costs, replace it. Also replace if your system is 15+ years old and breaking down often. We'll give you both options with real numbers - no pressure.

How often should I schedule maintenance?

Twice a year. AC tune-up in spring (March-May). Furnace tune-up in fall (Sept-Nov). Catches problems early and keeps your warranty valid.

Do you offer financing?

Yes, we have several financing packages and monthly payment plans available.

Do I need a whole-house dehumidifier in a humid climate?

Often yes. In states like Florida, Texas, and Louisiana, humidity can overwhelm your AC's dehumidification ability. A whole-house dehumidifier keeps indoor humidity at 45-50% for better comfort and prevents mold growth.

What SEER rating should I get for hot, humid weather?

Aim for 16+ SEER in hot climates. Higher efficiency saves more money when your AC runs 8+ hours daily. Many Texas and Florida homeowners save $300-500/year upgrading from a 14 SEER to 18+ SEER unit.

How often should I service my AC in a hot climate?

Every 6 months minimum. Systems in hot, humid states work twice as hard as those in mild climates. Spring and fall tune-ups catch problems before they become expensive breakdowns during peak season.

Do I need a permit for HVAC installation in Sherman?

Yes, building permits are required for HVAC installations in Sherman, Texas. The City of Sherman mandates permits for mechanical work, including HVAC systems, as part of their adopted building codes. You'll need to obtain proper permits before installation and schedule required inspections with the city's Building Permits & Inspections department.

What is the life expectancy of an HVAC system in Sherman, Texas?

In Texas, most central air conditioners and heat pumps typically last 10 to 15 years, while furnaces last around 15 to 20 years. If your AC is 12 to 15 years old with rising repair costs, or your furnace is nearing 20 to 30 years, consider replacement during spring or fall to avoid peak summer demand.

What's the average electric bill in Sherman, TX?

The average residential electric bill in Sherman is approximately $156-158 per month, with electricity rates averaging around 13.53 to 14.18 cents per kilowatt-hour. This rate is roughly 33% lower than the national average, making Sherman relatively affordable for energy costs.

Are there HVAC rebates available in Sherman?

Yes, Sherman residents can access various HVAC rebates and incentives. Federal tax credits offer up to 30% back on qualified energy-efficient HVAC improvements through December 2025. Additionally, utility companies like SWEPCO offer incentive programs for high-efficiency heat pumps and air conditioning installations.

Who provides electricity in Sherman, Texas?

Sherman is served by Oncor Electric Delivery for power infrastructure and transmission. Residents can choose from multiple retail electricity providers in the deregulated Texas market. The area is part of Grayson County's electrical service territory with various competitive energy companies available.

HVAC fan iconUtility Services

Local Utility Providers in Sherman

Find contact information for local utility companies serving Sherman, TX.

Gas

Atmos Energy

5111 N Blue Flame Rd, Sherman, TX 75090

Electric

Oncor Electric Delivery

313 Dorset Dr, Sherman, TX 75092

Water

Utility Billing

405 N Rusk St, Sherman, TX 75090

HVAC fan iconLocal Intelligence

HVAC in Sherman: What Local Homeowners Need to Know

HVAC Permits & Building Codes in Sherman

Sherman requires building permits for HVAC installations as mandated by the city's adopted building codes, including mechanical and plumbing codes. The City of Sherman's Building Permits & Inspections department oversees the permit process. Buildings over 5,000 square feet require a Professional Texas Engineer to design mechanical systems. Permits are required for residential remodels involving mechanical work, and proper inspections must be completed to ensure code compliance.

HVAC Rebates & Incentives for Sherman Homeowners

Sherman residents have access to multiple HVAC rebate programs. SWEPCO offers incentive programs to help pay for high-efficiency heat pump and air conditioning installations. Federal tax credits provide up to 30% back on qualified energy-efficient HVAC improvements through December 2025. Texas utility companies also offer energy efficiency rebates ranging from $90 to $310 per ton for qualifying central AC and heat pump systems, with enhanced rebates for low-to-moderate income households.

Energy Costs in Sherman

Sherman residents enjoy relatively affordable electricity costs, with average rates of 13.53-14.18 cents per kWh and monthly bills averaging $156-158. These rates are approximately 33% lower than the national average, making energy-efficient HVAC upgrades even more cost-effective. Oncor Electric Delivery manages the local power infrastructure, while residents can choose from competitive retail electricity providers. Upgrading to high-efficiency HVAC systems can significantly reduce monthly energy expenses in Sherman's climate.

HVAC fan iconVent Sessions News

The Comfort Chronicle

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