ABOUT CASTLE A/C & HEATING
Castle Air’s Brian Spiwak and Josh Cartwright visit a local air conditioning parts distributor in the early days.
Castle Air Conditioning & Heating was founded by Brian Spiwak in 1975. Brian got his start helping his dad at his family’s laundromat business. That expertise turned into Brian learning how to work on and repair commercial and industrial laundry equipment. Mechanically inclined and able to repair almost anything, Brian moved on to appliance repair before he settled on a specialty in HVAC installation, service, and repair in the Houston area.
In 2005, Josh Cartwright joined the team after graduating college and upon a recommendation from a fellow local HVAC contractor. When Brian retired in 2014, Josh purchased the business and began running Castle Air Conditioning and Heating’s day-to-day operations. Josh briefly combined forces with Maxx A/C & Heating in 2018 as the HVAC license holder where he ran a profitable service department based out of Pearland and gained more commercial HVAC experience.
In 2024, Josh resumed operations at Castle A/C & Heating, and he and his crews proudly serve Southwest Houston, Texas and points nearby.
WHAT WE DO
Castle Air Conditioning & Heating serves commercial and residential customers in the Greater Houston area and provides high-efficiency air conditioners, heat pumps, furnaces, mini-splits, package units, and more. We offer a “Set It and Forget It Assurance Plan” to make it easy to schedule routine preventative maintenance.
- Expert AC & Heating Repair Since 1975
- American Standard Customer Care Dealer
- Prompt HVAC Service for All Makes & Models
- Residential and Commercial Expertise
- NATE-Certified Technicians
- Financing Available with approved credit
- Guaranteed Satisfaction
- Licensed and Insured
- Family Owned & Operated
- Serving Southwest Houston, Texas
Josh Cartwright, Owner & HVAC Service Technician
In 2005, Josh Cartwright started working with Brian Spiwak of Castle Air Conditioning & Heating as his apprentice. He learned the ins and outs of the residential and commercial air conditioning and heating business. After a four-year stint in the finance industry in 2006, he returned to Castle Air Conditioning and Heating in 2010 where he completed his HVAC apprenticeship. In 2012, Josh earned his HVAC license and became the new owner of Castle Air Conditioning & Heating in 2014.
Josh briefly combined forces with Maxx A/C & Heating in 2018 as the HVAC license holder where he ran a profitable service department based out of League City and gained additional commercial HVAC experience. After Maxx A/C & Heating changed ownership, Josh joined forces with Garry Mack and resumed the operation of Castle Air Conditioning & Heating.
As a licensed HVAC contractor (TACLA00051749C), Josh holds a national certification through NATE, and EPA Section 608 Technician Certification. He graduated from Stephen F. Austin State University with a Bachelor’s of Business Administration in Finance.
Josh enjoys spending time with his family and friends. He and his family are members of Second Baptist Church - 1463 Campus in Katy, Texas near Cross Creek Ranch and Cinco Ranch.
Sarah West, Office Manager
Sarah West serves as the Office Manager and is often the first point of contact for Castle A/C & Heating customers. With deep roots in the Houston area, she is committed to ensuring every interaction is handled with professionalism, clarity, and follow-through.
Sarah has extensive experience in office management, customer service, operations, and logistics. Prior to joining Castle AC & Heating, she served as the director of a neurodevelopment center supporting children and families. She has also led and organized large volunteer teams through her long-standing involvement with the Houston Livestock Show and Rodeo. These experiences have shaped her calm, organized, and people-first approach.
A Houston resident since the age of five, Sarah is passionate about serving her community and believes locally owned businesses are uniquely positioned to provide exceptional care and accountability. Outside of work, she is a wife to Roger, a commercial diver, and a proud mom to her daughter, Alexandria. She also volunteers with organizations supporting underprivileged children and serves on the board of a Scottish charity dedicated to preserving clan heritage—values that reflect the honesty, loyalty, and trust she brings to Castle AC & Heating every day.
Allen Penney, Senior Service Technician
Allen Penney is a lead HVAC technician at Castle A/C & Heating. He has more than a decade of experience in HVAC, including commercial refrigeration, residential and commercial air conditioning and heating. He got his start in refrigerant at ICEE and spent a few years in North Carolina working for a family-owned HVAC business before moving back to Texas. He is a graduate of Texas State Technical College in Richmond, Texas.
Garry Mack, Consultant
Garry Mack obtained a Texas State Air Conditioning Contractors License TACLB3350C in 1985 when the State of Texas started issuing licenses instead of each individual city issuing licenses. He owned and operated Home Services Air Conditioning & Heating from 1984–2001 before selling the business to a Fortune 500 company. He continued on in a consultant role for the next four years before founding Maxx A/C and Heating in 2005. Maxx A/C and Heating served residential, commercial, and new construction customers, providing HVAC service and replacement. Maxx A/C & Heating was sold in 2018 with 21 employees and 14 subcontractors. Garry currently serves in a consulting role with Castle Air Conditioning & Heating.
In his free time, Garry has been an active community volunteer serving as a firefighter since 2007 for the Seabrook Volunteer Fire Department and serving as president for the last decade. He was also elected to Seabrook City Council where he served from 2008–2011.
CALL US TO SET UP A SERVICE CALL
Contact us at (713) 667-7606 or book online and we’ll provide expert cooling and heating service to keep you comfortable indoors any time of year. We service every make and model of HVAC equipment for residential and commercial applications. Give our royal service a try!
