Dilmak Services: Trusted HVAC Solutions in San Antonio
San Antonio's Most Trusted AC Company

As a family-owned and operated business with over 30 years of industry expertise, we pride ourselves on our unwavering commitment to ensuring 100% customer satisfaction.
Why Choose Dilmak Services for Your HVAC Needs?
Our comprehensive range of services includes installation, maintenance, and repair of HVAC and plumbing systems using state-of-the-art equipment and cutting-edge technology. We offer personalized solutions tailored to meet the unique requirements of each client, ensuring optimal performance and energy efficiency.
Air Conditioning Replacement

Signs You Need Air Conditioning Replacement
- AC is over 10 years old
- Frequent repairs needed
- Higher energy bills
- Humidity issues in your home
- Hot and cold spots
- AC runs constantly but doesn’t cool
Cost of AC Replacement in San Antonio
Replacing an air conditioner typically costs between $5,000 and $30,000, depending on:
Home size: Larger homes may require a bigger unit
AC type: Brand, capacity, and SEER rating affect the price
Air Conditioning Repair

Cost of AC Repair in San Antonio
Air conditioning repairs can range from $100 to $1,000+, depending on:
Type of repair: The specific HVAC unit and repair needed significantly impact cost. For example, repairing a refrigerant leak can cost $250–$1,550, while fixing water leaks typically costs $125–$325.
Condition of the AC: The age, condition, and warranty status of your AC unit can also affect repair costs.
Dilmak AC Tune Up Service

Cost of AC Tune-Up Service in San Antonio
AC tune-up services typically range from $65 to $300, depending on:
- AC unit: Type, size, and accessibility of the unit can impact the cost
- Maintenance plan: Enrolling in a maintenance plan may influence pricing
- Additional services: Extra services like filter replacement, refrigerant recharge, or duct cleaning can increase the cost.
Duct Cleaing Service

Cost of Air Duct Cleaning in San Antonio
Air duct cleaning typically costs between $300 and $500, but can range from $200 to $2,000 depending on:
- Home size: Larger homes with more ductwork and vents generally cost more.
- Number of vents: More vents mean more ductwork to clean.
- Level of cleaning: A more thorough cleaning will increase the cost.
- Improves HVAC efficiency
- Can save money on energy bills
- Removes allergens, dust, and dirt from your air vents.
Furnace Replacement

Cost of Furnace Replacement in San Antonio
Furnace replacement costs can vary depending on several factors:
- Furnace size: Larger furnaces for bigger homes are typically more expensive.
- Energy efficiency: Furnaces with higher AFUE ratings cost more but can save on heating costs in the long run.
- Installation costs: Labor costs depend on location, season, and installation complexity.
- Ductwork: If ductwork needs repairs or replacement, this adds to the overall cost.
- Climate: Colder climates may require a higher-capacity furnace.
- Maintenance and repairs: Some furnaces need more maintenance or have costly parts.
- Energy source:The type of fuel (gas, electric, etc.) impacts installation costs.
- Comfort features: Adding extra comfort features can increase installation costs.
Signs Your Furnace Needs Replacement
- Frequent, expensive repairs can indicate that your furnace is nearing the end of its life.
- Additional factors like the brand, time of year, and existing ductwork condition can also affect furnace replacement costs.
Blown In Insulation


5 Benefits of Blown Insulation
Blown insulation offers numerous advantages for both homeowners and businesses. Unlike traditional fiberglass batts, we prefer cellulose blown insulation for its superior efficiency and ease of use. Here are the top 5 benefits:
Higher Efficiency
Blown-in insulation is 22% more efficient than fiberglass batts due to its seamless coverage. Made from recycled newsprint, it’s also an eco-friendly option. Proper attic insulation reduces energy loss, saving on heating and cooling costs.
Quick Installation
Blown-in insulation can be installed quickly, usually within a few hours. Two installers can efficiently cover an entire attic, which would take much longer with fiberglass batts.
Cost-Effective Investment
Blown insulation offers one of the quickest returns on investment. Savings on energy bills will quickly cover the installation costs, providing long-term financial benefits.
Complete Coverage
Cellulose insulation fills every nook and cranny, ensuring thorough coverage of all areas in your attic, including beams, pipes, and wiring, something fiberglass batt insulation can’t achieve.
Noise Reduction
Blown insulation helps dampen noise, making it ideal for attics or spaces used for work or recreation.
Choose professional installation for maximum performance and long-lasting results. At Dilmak Services, we guarantee top-quality service and comfort throughout the year.
EXCELLENT Based on 285 reviews Justin Rose2024-08-15Trustindex verifies that the original source of the review is Google. Emergency service they were able to get out within the hour. Dave the tech was great fixed the issue and double checked everything else. michael harber2024-08-08Trustindex verifies that the original source of the review is Google. Needed to replace a 36 yr old Trane AC and gas heater back in May. We spent 3 days getting quotes from Various Companies, half wanted to sell us what they wanted to sell us (wanted a2 or multi stage unit), the other half didn't even send over a quote or were way to high. As a last ditch we called afew other A/C Companies, Dilmak being one of them. We ended up going with Dilmak and couldn't be happier. We originally wanted a Trane but we're offered quotes for what I requested and what they suggested ( comparable unit by Ruud). The team at Dilmak were not pushy, explained the differences in units and how those units would perform in my home. They were extremely patient, informative and professional. The install went great and quick, their team were able to move my outside unit to a new location and completely install in one day!!!!! They stayed in contact through the whole process including assisting with CPS rebates and that process. Today, 2 months later, I can't be happier, it's 102 degrees outside and my unit is keeping us at temp WHILE cycling through the day, even the neighbors are jealous 🙃 We won't be using anyone for our A/C and heating needs but Dilmak and will be recommending them to our family and friends when the need arises. Thanks Trevor, Mario, install team and office ladies, you're amazing!!!!!! Max Nombrano2024-08-06Trustindex verifies that the original source of the review is Google. Dilmak installed my HVAC unit about 4 years ago and they maintain my system at least twice a year and their service is superior! I always recommend them to all my family and friends! MaxN Donna Dittmar2024-07-30Trustindex verifies that the original source of the review is Google. Awesome technician and office staff! Stayed in contact during the whole process. I like the technology used to track, notify, update and provide required paperwork for warranty, etc. I will definitely use this company again. Chris Hosek2024-07-25Trustindex verifies that the original source of the review is Google. Very efficient, courteous and professional in completing job. Did a great job. Mr Derek Smolka is the best. Steve Bell2024-07-22Trustindex verifies that the original source of the review is Google. Very knowledgeable, courteous and professional. Kathy Faris2024-07-19Trustindex verifies that the original source of the review is Google. They were quick to respond same day within an hour, had my AC fixed and my house cooling down, highly recommend! Megan Holder2024-07-10Trustindex verifies that the original source of the review is Google. We have nothing but great things to say about Dilmak. They’ve come and serviced our AC unit a handful of times and replaced our coils this summer. I love that it’s always quick to get an appt. Amanda who typically answers the phone is always polite and professional. David has been our favorite technician. His experience makes him so knowledgeable. He went above and beyond. If you have AC problems, just call them! Chris v2024-07-09Trustindex verifies that the original source of the review is Google. Derek and his crew were professional, friendly, left their workspace clean and were very knowledgeable. Anthony Woodard2024-07-09Trustindex verifies that the original source of the review is Google. Had a great experience the technicians were very courteous and informative
Why Choose Dilmak Services for HVAC?
At Dilmak Services, we uphold our promises and maintain the highest standards of integrity in every project. Our team of skilled technicians is dedicated to getting the job done right the first time, minimizing downtime and disruptions to your daily operations. We prioritize clear communication, transparency, and reliability throughout our service process, fostering long-lasting relationships built on trust and exceptional service.

At Dilmak Heating, Air, and Plumbing, our mission is centered around delivering the highest quality of workmanship and professional service with efficiency and innovation that consistently surpasses our customers’ expectations. Whether you’re a homeowner seeking dependable comfort solutions, a builder focused on achieving excellence in construction projects, a contractor needing reliable service, or a commercial facility manager requiring top-tier HVAC support, we are here to cater to your specific needs with excellence and precision.

24 Hour Plumbing Services
Why delay dealing with plumbing problems that can disrupt your daily routine? Take proactive steps to address these issues by reaching out to us today for dependable and efficient plumbing services in San Antonio. Our dedicated customer service team is ready and eager to assist you by answering any questions you may have and scheduling an appointment at a time that suits your convenience. By choosing us, you not only gain access to reliable plumbing solutions but also experience the convenience of a friendly and responsive team dedicated to ensuring your plumbing needs are met promptly and effectively. Don't let plumbing concerns linger—contact us now to regain control over your daily life without the worry of disruptive plumbing issues
Check Out Our Plumbing Services
Our commitment to quality service ensures that every customer receives exceptional standards. Enjoy the benefits of our expertise in HVAC and plumbing, tailored specifically for your needs.
Feedback from Our Clients
“Dilmak Services exceeded my expectations during our AC installation! Their professionalism and quick service truly stood out. Highly recommend them!”
— Maria T., San Antonio
“One night, I had a plumbing emergency, and the team from Dilmak responded so fast. They truly saved the day!”
— John D., San Antonio