Mainstay Life Services
Our Mission: We enrich lives through person-centered support and inclusive community programs, unlocking the full potential of people with diverse abilities.
Mainstay Life Services’ history is a history of two organizations, Idlewood Center and Horizon Homes, established in 1971 and 1969 respectively. Mainstay Life Services was formed on January 1, 1999, through the merger of these two non-profit agencies. The commitment of Mainstay Life Services has been to continue the tradition and missions of these two vital community organizations. Horizon Homes and Idlewood Center were pioneers in developing services and supports for individuals with mental retardation in Allegheny County. Both were recognized for quality of service and commitment to individuals and their families. Each organization also had strong Boards of Directors who were involved in governance, policy-making and fundraising. In the mid-1980s, Horizon Homes and Idlewood Center experienced a marked increase in residential services due to the downsizing and eventual closing of state institutions. In 1993, Chartiers MH/MR Center divested itself of residential programming and requested assistance from Horizon Homes and Idlewood Center. Once again, these two organizations responded to the needs of the community through expansion of their residential services. In recognizing the challenges of the 21st Century, both Horizon Homes and Idlewood Center were instrumental in the development of the Comprehensive Service Alliance, a consortium of four mental retardation service providers. Through this joint venture corporation, member agencies collaborate to share resources, discover and develop efficiencies, and expand current services to meet emerging needs. Mainstay Life Services, like all members of the Alliance, is committed to meeting the changing needs of its consumer base and those of the community at large.
We’re proud to celebrate Collette, who was selected for ANCOR’s second Ambassador cohort! 🎉
Recently, she traveled to Washington, D.C., to connect, learn, and collaborate with Direct Support Professionals and other advocates from across the country. As an ANCOR American Network of Community Options and Resources Ambassador, Collette is helping elevate the voices of those who support people with intellectual disabilities and autism and strengthening advocacy efforts nationwide. Way to go, Collette! 🌟
10/02/2026
🌟 Friday Fact from enTRUST: Moving? Don't Forget to Update Your Address! 📬
Did you know… updating your address with the County Assistance Office (CAO) alone may not be enough?
Here's what you need to know:
🔹 Update your address with your CAO
🔹 Update your address with the U.S. Post Office
🔹 Notify your benefit programs and service providers, including those coordinated through enTRUST Services
Why It Matters:
✔ Helps prevent important notices from being sent to an old address
✔ Can help avoid delays or interruptions in benefits and services
✔ Keeps your information current with the organizations supporting you
🎯 Big takeaway: A few extra minutes updating your address with both the CAO and Post Office can help prevent headaches later!
enTRUST Services, LLC provides person-centered Benefits Counseling to help people maintain access to their benefits and resources.
enTRUST Services is a Mainstay subsidiary. Learn more: https://entrustdisabilitysvcs.org/
10/02/2026
📍 Mainstay at the RCPA Conference!
Several Mainstay team members attended the RCPA Conference in Hershey, PA this week, where Associate Director of Technology Heather Lewis participated in an important conversation about the future of person-centered remote supports.
Joined by Renda Cypher, Quality, Compliance, and Operations Director of CLASS, Inc. and Laura Mitchell, CEO of GrandCare Systems - Corporate HQ, the three hosted the session: “Beyond Remote Monitoring: The Future of Person-Centered Remote Supports.”
The discussion explored how remote supports can help promote greater independence, quality of services, and lead to meaningful outcomes for people.
Reflecting on the session, Heather shared: "The strong engagement from the audience at RCPA confirmed that providers are looking for practical ways to leverage technology and remote support. I was honored to share Mainstay’s journey and lessons learned along the way.”
Mainstay is grateful to RCPA for the opportunity to bring together leaders and innovators to share ideas and advance the conversation around technology and person-centered supports! 💙
10/01/2026
For the third year, Mainstay CEO Kim Sonafelt and Keystone Human Services President & CEO Chuck Sweeder were a part of Strategic Expansion Executive Retreat (SEER), an invitation-only gathering for chief executives of the country’s largest intellectual and developmental disability providers. Partnership conversations are the focus of the gathering.
"Mainstay and Keystone have set the example of how and when it's best to affiliate," commented Kim. "Our coming together last year has helped to normalize the conversation around affiliation to form a stronger organization together that best supports people as they live their best lives."
Kim and Chuck also attended the Behavioral Health Tech conference which this year was co-located with SEER in Nashville, TN.
09/30/2026
🎣 A Day by the Water! 🌿
JJ recently spent a day enjoying one of his favorite activities—fishing! He headed to Dougherty Nature Trails in Etna, stopping for bait along the way before spending the afternoon by the water.
While the fish weren’t biting this time, JJ still had a great day enjoying the beautiful weather, fishing, and chatting with people along the busy trail. It was a simple, relaxing afternoon centered around something he loves! 💙
09/29/2026
💙 As Su***de Prevention Month comes to a close, remember that you can be a lifeline for someone who may be struggling or considering su***de.
If you or someone you know is in crisis, call or text 988 or chat with the 988 Su***de & Crisis Lifeline at 988lifeline.org.
A conversation, a check-in, or simply being there could make all the difference. You could save a life.
***dePreventionMonth
Be a lifeline for someone who is in crisis or considering su***de.
🧡 Call or text 988 or chat 988lifeline.org/
You could save a life.
09/28/2026
We're looking for a Part-Time HR Assistant to join our team!
This role is perfect for someone who enjoys staying organized, supporting recruitment and onboarding efforts, and helping create a positive employee experience. Join a mission-driven organization dedicated to enriching lives and unlocking potential!
📍 Pittsburgh, PA
🕒 20 hours/week
💲 $19.75/hour
Learn more and apply today at https://ow.ly/TKv350ZRsCW
09/27/2026
Self Advocacy Power Network for All (SAPNA) is a project of the PA Office of Developmental Programs (ODP), managed by Self Advocates United as 1 (SAU1). SAU1 is a group of people who envision a world where people with developmental disabilities and their families are united to share knowledge, empower others, and use their voices to transform their communities and people’s lives.
Find out more about SAU1 and its coming events here: https://sau1.org/
09/26/2026
✨ Spreading Joy This Holiday Season! ✨
Mainstay Life Services is proud to support L&L Ventures’ Socialights program, which provides Joy Homes to families during the holiday season. 🎁❤️
Several members of the Mainstay team had the opportunity to attend the annual Socialights Gala last week and celebrate the impact this program has on families in our community.
We’re grateful to be part of an effort that helps make the holiday season a little brighter for so many families! ✨
09/25/2026
Disability Pride Pittsburgh is TOMORROW! Come out and enjoy an afternoon of celebration, community, and fun at Disability Pride Pittsburgh on September 26 from 12:00 PM to 4:00 PM! Mainstay is a proud supporter of Disability Pride Pittsburgh.
Find out more information at www.DisabilityPridePA.org/Pittsburgh
Disability Pride Pennsylvania
Disability Pride Pittsburgh! 💚💙
Access looks like being able to arrive, participate, take a break, and come back to the celebration. It looks like a space where disabled people can show up as ourselves and experience joy together in public.
For five years, Disability Pride Pittsburgh has brought our community together to celebrate who we are. Join us on Saturday, September 26, from noon to 4 PM at Schenley Plaza. Come for the music, community, and joy. You belong here.
See you there!!
Read our accessibility statement: DisabilityPridePA.org/accessibility-statement
Image description: A bright green Disability Pride Pennsylvania graphic reads “ACCESS looks like Disability Pride Pittsburgh.” The organization’s blue logo appears at the upper right. Below the text is a collage of six photos showing disabled people, friends, and performers enjoying outdoor Disability Pride events. A blue circle at the lower right contains the number 17. Along the bottom is DisabilityPridePA.org/accessibility-statement.
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| Monday | 8:30am - 4:30pm |
| Tuesday | 8:30am - 4:30pm |
| Wednesday | 8:30am - 4:30pm |
| Thursday | 8:30am - 4:30pm |
| Friday | 8:30am - 4:30pm |
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