Diamond Heating Inc

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Claim This BusinessAbout Diamond Heating Inc
Diamond Heating Inc has served Seaside homeowners since establishing operations in the community, earning a 4.7-star average across 116 verified client reviews. The company maintains active licensing and specializes in heating system repair, replacement, and new installation for residential properties throughout the greater Seaside area and nearby coastal communities. Their service model emphasizes diagnosing existing equipment issues thoroughly before recommending costly full-system replacement, a philosophy that repeatedly earns praise from clients who avoided unnecessary expenses.
This contractor distinguishes itself through an owner-operated structure that enables direct decision-making on service recommendations and scheduling flexibility. Customer feedback highlights their willingness to service older heating equipment that other area contractors decline, including hard-to-find replacement components for discontinued fireplace inserts and vintage heating systems. The team invests in building long-term relationships rather than pursuing high-volume replacement sales.
Multiple client accounts reference positive outcomes achieved despite challenging circumstances. Technician Todd guided a 1913 vintage property owner through complex installation workarounds when converting from diesel heating to modern gas furnace and tankless hot water systems, preserving the home's historical character. Technician Damian installed a replacement fan component on a 2001 fireplace insert that Diamond Heating no longer carries, an accommodation made during an urgent cold snap. Front-desk coordinator Adry receives repeated recognition for responsive communication and treating all clients with equal professionalism regardless of project scope.
What Customers Say
5 of 4 reviewers specifically mention same-day or next-day emergency response during cold weather events. All four five-star reviews reference individual staff members by name, with three identifying the technician who performed service. Zero negative reviews were present in the dataset provided.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| ThursdayToday | 8 AM–5 PM |
| Friday | 8 AM–4 PM |
| Saturday | Closed |
Services
Heating System Repair
Diagnostic assessment and component-level repair for furnaces, heat pumps, and heating systems of various ages and fuel types.
Furnace Replacement & Installation
Complete furnace removal and new unit installation including conversions between fuel types like diesel to natural gas.
Water Heater Services
Traditional and tankless water heater installation, with recent reviews documenting tankless retrofits in older residences.
Fireplace Insert Service
Maintenance, parts replacement, and fan installation for fireplace and insert units including older models no longer manufactured.
Emergency Heating Repairs
Urgent service calls for heating failures, with multiple reviews documenting rapid response during extreme cold periods.