Comfort Assurance Program (CAP) Membership

Protect Your Systems. Prioritize Your Comfort. Save Money Year-Round.


What’s Included in Your CAP Membership
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We built the CAP Program to deliver meaningful value, without fluff. It’s designed for real Oklahoma homes, with practical services and member benefits that make a difference day to day and support lasting comfort over the long term.


Your Comfort Assurance Program includes:

  • Two full HVAC tune-ups per year (spring and fall)
  • Annual whole-home plumbing inspection
  • 15% off all repairs for HVAC and plumbing
  • 15% off Service call fee
  • Priority scheduling even during peak season
  • Transferable membership if you move within the OKC area
  • Access to exclusive seasonal promotions and savings


When you join CAP, you’re not just signing up for reminders you’re gaining an ongoing partnership with a licensed Oklahoma City HVAC contractor who learns your home, stays ahead of issues, and prioritizes your comfort and peace of mind in every season with priority care when it matters most.

Trusted for a Century. Straightforward Value. Plus Member Savings.

Because our weather doesn’t mess around and neither should your maintenance
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Why Oklahoma City Homeowners Choose CAP

    Oklahoma’s climate is demanding: summer heat strains your A/C, winter cold snaps test your furnace, and hard water steadily wears on plumbing. Those aren’t small stresses they’re the conditions that trigger unexpected breakdowns and rising costs.

    That’s why Oklahoma City homeowners choose CAP. Members receive two seasonal maintenance visits each year a spring A/C cleaning and tune up before peak heat, and a fall furnace cleaning and tune up ahead of winter demand delivered with a level of detail that prioritizes safety, reliability, and peace of mind. Our visits may take longer than many companies because we’re thorough by design: we verify operation, catch small concerns early, and make sure everything is truly in order and because your membership covers the visit itself, we don’t rush or charge by the hour you’re paying for consistent care, not a stopwatch. Plus, CAP members receive 15% off HVAC and plumbing services whenever additional work is needed.

CAP Members Experience:

  • Fewer emergency breakdowns
  • Longer equipment lifespans
  • Lower monthly utility bills
  • Better indoor air quality
  • Cleaner, safer plumbing
  • Peace of mind during weather extremes
  • It’s the same proactive care we give our own families because that’s how we treat our customers.
We proudly serve those who serve others
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Community Discounts Always Included

Beyond the CAP membership, we also offer everyday discounts to members of our community who make Oklahoma stronger.

If you're a:

  • Veteran or active-duty military member
  • Senior (65+)
  • First responder
  • Public school teacher or staff member 

You qualify for extra savings on repairs and maintenance, even outside the program. Just let us know when you schedule.

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Call Silvernail Plumbing, Heating & Cooling to Join the Comfort Assurance Program Today

Ready to take the stress out of home maintenance?