Heating & cooling
AC & HVAC repair in Martinez.
From wall furnaces in the downtown Victorians to full systems in Alhambra Valley, we work the whole age range of Martinez housing.
Martinez has the oldest housing stock we service in the Diablo Valley. The county seat's downtown and the streets off Alhambra Avenue are Victorian and Craftsman houses that predate ductwork entirely, and a surprising number still heat with wall furnaces and floor furnaces. That is a category of work most HVAC shops have stopped touching. We have not. Around them, Vine Hill, Mountain View, and Virginia Hills add mid-century neighborhoods running conventional split systems, and Alhambra Valley stretches out into semi-rural lots where the estate remodels carry larger, newer equipment.
The Carquinez Strait does Martinez a favor on climate. The breeze off the water keeps summer afternoons noticeably milder than Concord a few miles south, so cooling systems here are smaller and work fewer hours, and a fair number of the older homes still have no AC at all. The flip side is a longer shoulder season where heating runs morning and evening, which keeps the furnace side of the business busy from October through April.
We are ADRIUM Service Solutions, owner-operated out of San Ramon, 30 to 35 minutes up 680, folded into the Diablo Valley route with Concord and Pleasant Hill. The diagnostic is $75 and we waive it when you book the repair. Written, itemized quotes before any work. EPA Section 608 Universal certified, CSLB #1136642, seven days a week.
Pre-war houses, wall furnaces, and the ductless answer
We still repair wall and floor furnaces in the downtown Victorians and Craftsman homes: thermocouples, gas valves, pilot assemblies, and the safety checks that matter most on open-combustion equipment in an old house. Every visit to one of these units includes a combustion and venting check, because the real risk on a 60-year-old gravity furnace is not comfort, it is carbon monoxide. Furnace repair covers this work, and we tell you plainly when a unit has reached the point where repair is no longer the safe call.
When one of these furnaces retires, the best replacement is usually not ducts. Cutting a duct system into a 1910 floor plan is expensive and destructive. A ductless heat pump gives the house heating and its first-ever cooling without touching the plaster, and the line sets route along the exterior. We install Mitsubishi and Daikin for exactly this job.
The mid-century neighborhoods and the strait-cooled summer
Vine Hill, Mountain View, and Virginia Hills run standard split systems, and the call sheet is familiar: igniters and inducer motors in winter, capacitors and slow refrigerant leaks in summer, water-in-the-secondary-pan in between. Because the strait keeps summers milder here, condensers are smaller and last longer than their Concord counterparts, which shifts the honest math toward repair more often than replacement. We quote accordingly through AC repair, and the diagnostic tells us which side of the line your equipment is on.
Alhambra Valley and full-system work
The semi-rural Alhambra Valley properties bring bigger jobs: larger tonnage, long line-set runs, and remodels where the HVAC was redesigned along with the kitchen. Replacement and conversion work there goes through HVAC installation with the full scope in writing before equipment is ordered.
On rebates, we work with BayREN, MCE, PG&E, and EBCE/Ava, plus manufacturer instant rebates. Amounts and funding vary by territory and cycle, so we confirm what is actually paying when we write your estimate. The maintenance plan covers seasonal checks if you would rather stay ahead of the failures.
Common questions, Martinez.
- Do you still repair wall furnaces and floor furnaces in Martinez?
Yes. Thermocouples, gas valves, pilot assemblies, and full combustion and venting safety checks on the older downtown homes. Many shops have dropped this work; we have not. When a unit is genuinely past safe repair, we say so in writing and lay out the replacement options.
- What is the best way to add AC to an old downtown Martinez house?
Usually a ductless heat pump. The pre-war homes have no ducts, and cutting a duct system into one is expensive and destructive. Ductless heads cool and heat the rooms that need it with line sets routed along the exterior, and the same system replaces an aging wall furnace at the same time. We install Mitsubishi and Daikin.
- How much is a service call in Martinez, and are you licensed?
The diagnostic is $75, waived when you book the repair with us. Every quote is written and itemized before work starts. We are CSLB licensed under #1136642 and EPA Section 608 Universal certified for all refrigerant work.
Heating & cooling