Purisync HVAC Case Studies: Real Projects Across West St. Louis County
This page documents actual HVAC installation, repair, and retrofit projects we’ve completed across our six-city service area. Each case study describes the specific home, the situation we addressed, the technical scope of the work, equipment selected, project timeline, and the customer outcome — the kind of detail homeowners need when deciding whether a contractor has handled situations similar to their own. Projects span the full range of work we do: emergency repairs, planned replacements, historic home retrofits, multi-system estate installations, and specialty equipment work.
Case Studies by City
Kirkwood, Missouri
Kirkwood projects span the full housing-stock range from 1850s Jefferson-Argonne homes through 1950s Craig Woods ranches to contemporary infill homes.
- Meramec Highlands Furnace Replacement: 1898 Victorian boiler replacement preserving cast-iron radiators
- Central Place AC Installation: 1924 Tudor Revival ductless mini-split retrofit through preservation review
- Craig Woods System Replacement: 1956 ranch home matched-system replacement with zoning addition
- Savoy Heat Pump Conversion: 1952 ranch home gas-to-heat-pump conversion with Ameren rebate
- North Taylor Emergency Replacement: Polar Vortex emergency furnace replacement during 2019 cold snap
Affton, Missouri
Affton projects focus on slab-on-grade housing-stock challenges — closet and garage equipment placement, condensate management, and 1960s-1970s vintage housing equipment replacements.
- Garage-Mounted Furnace Replacement: Cold-weather scope additions on garage installation
- Closet Installation Relocation: Moving garage equipment to interior closet during replacement
- Slab-on-Grade Zoning Retrofit: Attic ductwork zoning addition for ranch home
- Heat Pump Conversion with Electrical Upgrade: Electrical panel upgrade enabling heat pump installation
- Condensate Emergency Water Damage: Emergency response to closet air handler condensate failure
Sappington, Missouri
Sappington projects center on split-level home distribution improvements and daylight basement humidity solutions.
- Split-Level Zoning Installation: 2-zone retrofit addressing chronic upstairs-downstairs comfort issues
- Daylight Basement Dehumidifier: Whole-home dehumidifier resolving basement humidity issues
- Pre-1960 Hydronic Boiler Replacement: Original hydronic system condensing boiler upgrade
- Matched-System Replacement: Combined AC + furnace replacement on tri-level home
- Supply Register Distribution Improvement: Lower-level supply additions resolving cold-zone complaints
Webster Groves, Missouri
Webster Groves projects span Tuxedo Park historic district preservation-conscious installations through 1950s mid-century ranch replacements.
- Tuxedo Park Multi-Zone Ductless: 5-zone ductless installation in 1894 Victorian preserving plaster walls
- Old Webster Boiler Replacement: Historic district condensing boiler installation through preservation review
- College Hill Combi Boiler: Combination boiler installation replacing furnace + water heater
- Webster Park Mixed System: Forced-air retrofit on 1928 Tudor with ductwork in existing chases
- Mid-Century System Replacement: 1957 ranch matched-system replacement with variable-capacity equipment
Crestwood, Missouri
Crestwood projects span 1960s mid-century ranches and contemporary Crestwood Plaza redevelopment infill homes with communicating premium equipment.
- Mid-Century Ranch Replacement: Standard matched-system replacement with ductwork sealing
- Crestwood Plaza Townhome Installation: Communicating variable-capacity installation in HOA-coordinated townhome
- Asbestos Abatement Coordination: Pre-1980 home HVAC replacement with abatement coordination
- Condensate Emergency Repair: Frozen condensate line emergency during 2022 Polar Vortex
- Modulating Furnace Upgrade: Single-stage to modulating upgrade in 2015 infill home
Town and Country, Missouri
Town and Country projects involve multi-system estate home installations, communicating variable-capacity equipment, and specialty equipment integration.
- Three-System Estate Replacement: Full 3-system replacement on 5,400 sf home with Carrier Infinity
- Wine Cellar Climate Control: 1,200-bottle cellar climate control installation
- Indoor Pool Dehumidification: Indoor pool dehumidification retrofit with corrosion-resistant equipment
- Snow Melt Boiler Installation: Hydronic snow melt boiler for driveway and walkway system
- Multi-System Emergency Board Failure: Communicating system board failure emergency response
What These Case Studies Show
The patterns across these 30 projects reflect the work we actually do across our service area. Common themes:
- Housing-stock-driven decisions: equipment selection, configuration, and scope all driven by specific characteristics of the home and neighborhood
- Customer-specific cost-benefit framing: explicit discussion of options and tradeoffs during quote development
- Honest assessment of repair-versus-replace decisions: not always recommending replacement when repair is the better economic decision
- Preservation-conscious approach for historic homes: respect for original architecture during installation and repair work
- Multi-system coordination on estate homes: handling complexity that simpler residential contractors aren’t equipped for
- Emergency response priorities: same-night dispatch decisions based on actual situation severity
- Long-term customer relationships: many case studies include follow-up service and maintenance plan continuation
Frequently Asked Questions
- How can I see if you’ve worked on a home similar to mine?
- Browse the case studies organized by city above — each city section contains 5 case studies covering different equipment configurations, housing types, and project scopes typical of that city’s housing stock. If you don’t see a specific scenario matching your situation in the case studies, contact us at (314) 338-5111 — we can describe similar projects we’ve completed during initial consultation. Most homes in our six-city service area fall within patterns we’ve handled many times: mid-century ranch and split-level matched-system replacements, historic home preservation-conscious installations, estate home multi-system work, and emergency repairs across all housing types. We can describe past projects with similar characteristics to provide context for what to expect on yours.
- Are these real projects or marketing examples?
- These are real projects we’ve completed, with details adjusted to protect customer privacy. Specific identifiers like exact addresses, full customer names, and other personally identifying information have been generalized; technical details (equipment, scope, pricing, timeline) reflect actual project work. The scenarios described — Polar Vortex emergency replacements, historic home preservation review installations, multi-system estate home replacements, specialty equipment work — represent the actual range of work we do across our service area. We can provide references from customers who have agreed to be contacted directly when you’re evaluating us for major installation work; references for emergency repair work are typically not provided due to the urgent nature of those calls but customer satisfaction can be verified through online reviews.
- What if my situation doesn’t match any case study exactly?
- Most situations don’t match exactly — every home has specific characteristics that affect the right approach. The case studies illustrate the range of work we handle and the patterns we apply to specific situations rather than templates that get replicated across all customers. During quote consultation, we assess your specific home (Manual J load calculation, ductwork condition assessment, equipment placement analysis, preservation review consideration if applicable, multi-system analysis if applicable) and develop recommendations specific to your situation. The case studies inform what’s possible and provide context for pricing and timeline expectations; your project will have specific characteristics requiring specific decisions during quote development.
- Do you have case studies for commercial HVAC work?
- Yes — commercial case studies are documented separately. Our commercial HVAC work spans small office buildings, restaurants, retail spaces, and other commercial buildings in our service area. Commercial scope differs from residential in several ways: rooftop unit installation and service, commercial-grade equipment with different reliability and capacity requirements, service contracts with specific response time guarantees, and integration with commercial building systems. Contact us for commercial case studies; commercial work is documented on our commercial services pages rather than within this residential case study collection. Residential case studies focus on the single-family home and small multifamily work that dominates our service area.
- How recent are these case studies?
- The case studies span recent work from 2024-2026 with some older projects included where the work patterns are still relevant. We update the case study collection periodically as new projects are completed and customer outcomes are documented. Older case studies (2018-2023) for emergency situations like the 2019 Polar Vortex are included because the patterns they illustrate are recurring — Polar Vortex emergencies happen every few years on similar timing, and customers researching cold-weather emergency response benefit from documentation of how we handled those past events. R-454B refrigerant transition case studies will be added as more installations from 2025-onwards are documented under the new refrigerant standard. We don’t archive older case studies aggressively because the work patterns and customer needs they document remain relevant for current customers.
Contact Purisync Heating and Air
For your specific HVAC project, contact our 325 N Kirkwood Road office at (314) 338-5111. Initial consultation includes home walk-through, Manual J/S/D analysis, equipment options across multiple manufacturers and tiers, and written quote with itemized pricing. We can describe past projects with similar characteristics during consultation to inform your decision.
- Emergency Line (24/7): (314) 338-5111
- Address: 325 N Kirkwood Rd #245, Kirkwood, MO 63122
- Email: info@purisyncheatingairconditioning.xyz
- St. Louis County Mechanical Contractor License: #MC-2014-08439-STL
- Kirkwood Business Registration: #BL-2014-1187
- EPA Section 608 Universal: #608U-2014-385721
Office Hours
- Emergency Service: 24 hours a day, 7 days a week
- Office Staff: Monday – Saturday, 9:00 AM – 5:00 PM
- Closed: Sundays and State/Federal Holidays (emergency line always active)